论坛 › 齿轮传动/增减速机 › 齿轮齿面硬度等机械性能1

zht_udb 发表于 2006-11-22 16:49:21

齿轮齿面硬度等机械性能1

   由于大、小齿轮齿顶齿根的滑动比和压强比不同，齿轮副的硬度需要合理的搭配。表33给出了各类齿轮副的硬度选配方案。表34～表35给出了适用不同热处理条件的各种齿轮用钢。
<P>&nbsp;&nbsp;&nbsp;</SPAN><SPAN class=blk12><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;表</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt">33<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">各类齿轮副的硬度选配方案</SPAN></FONT></P>
<TABLE style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt" cellSpacing=0 cellPadding=0 width=500 border=1>
<TBODY>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid" align=middle width=114 rowSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>齿面硬度</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt" align=middle width=64 rowSpan=2>
<P class=xl25 style="MARGIN: 0cm 0cm 0pt; mso-pagination: none"><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt"><SPAN class=blk12>齿轮种类</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt" align=middle width=153 colSpan=2>
<P class=xl25 style="MARGIN: 0cm 0cm 0pt; mso-pagination: none"><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt"><SPAN class=blk12>热处理</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt" align=middle width=114 rowSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>齿轮工作</FONT></SPAN></P>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>齿面硬度差</FONT></SPAN></P></SPAN></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt" align=middle width=209 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>工作齿面硬度举例</FONT></SPAN></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=83>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>小齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=70>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>大齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=121>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>小齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>大齿轮</FONT></SPAN></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" align=middle width=114 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>软齿面</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=64>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">直</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt; mso-spacerun: yes">&nbsp; </SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">齿</SPAN></FONT></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=83>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>调质</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=70>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">正火</SPAN><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"> </SPAN><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">调质</SPAN></FONT></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">(HBS<SUB>1</SUB>)<SUB>min </SUB></SPAN><SPAN lang=EN-US><?XML:NAMESPACE PREFIX = O /><O:P></O:P></SPAN></FONT></P>
<P class=MsoNormal style="TEXT-INDENT: 9.45pt; LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-char-indent-count: 1.05; mso-char-indent-size: 9pt" align=center><SPAN class=blk12><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">－</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">(HBS<SUB>2</SUB>)<SUB>max</SUB></SPAN><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">≥</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt">(20</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">25)</SPAN><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">①</SPAN></FONT></P></SPAN></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=121>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">262</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">293HBS</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">269</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">302HBS</SPAN></FONT></P></SPAN></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">179</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">212HBS</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">201</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">229HBS</SPAN></FONT></P></SPAN></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=64>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">斜齿及</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">人字齿</SPAN></FONT></P></SPAN></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=83>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>调质</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=70>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">正火</SPAN><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"> </SPAN><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">调质</SPAN></FONT></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">(HBS<SUB>1</SUB>)<SUB>min</SUB></SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">－</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">(HBS<SUB>2</SUB>)</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt"><SUB>max</SUB></SPAN><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">≥</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt">(40</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">50)</SPAN></FONT></P></SPAN></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=121>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">241</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">269HBS</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">262</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">293HBS</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">269</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">302HBS</SPAN></FONT></P></SPAN></SPAN></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">163</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">192HBS</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">179</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">212HBS</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">201</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">229HBS</SPAN></FONT></P></SPAN></SPAN></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" align=middle width=114 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>软、硬齿面组合</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=64 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>斜齿及</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>人字齿</FONT></SPAN></P></SPAN></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=83>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>表面淬火</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=70>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>调质</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>齿面硬度差很大</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=121>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">45</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">50HRC</SPAN></FONT></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">269</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">302HBS</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">201</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">229HBS</SPAN></FONT></P></SPAN></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=83>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN lang=EN-US><SPAN class=blk12></FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=70>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>调质</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=121>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">56</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">62HRC</SPAN></FONT></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">269</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">302HBS</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">201</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">229HBS</SPAN></FONT></P></SPAN></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-top-alt: solid windowtext .5pt" align=middle width=114 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>硬齿面</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=64 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>直齿、斜齿及人字齿</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=153 colSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>表面淬火</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=114 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>齿面硬度大致相同</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=209 colSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">45</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">50HRC</SPAN></FONT></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=83>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>渗氮渗碳</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=70>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>渗碳</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" align=middle width=209 colSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">56</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">～</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">62HRC</SPAN></FONT></P></SPAN></TD></TR></TBODY></TABLE></SPAN><BR>&nbsp;&nbsp;&nbsp;</SPAN><SPAN class=blk12>①HBSl和HBS2分别表示小齿轮和大齿轮的硬度</SPAN> <BR>&nbsp;&nbsp;&nbsp;</SPAN><SPAN class=blk12>
<P class=MsoNormal style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN lang=EN-US><SPAN class=blk12>&nbsp;</FONT></SPAN><SPAN class=blk12><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN style="mso-bidi-font-size: 12.0pt"><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">表</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">34<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">调质及表面淬火齿轮用钢的选择</SPAN></SPAN></FONT></P>
<TABLE style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; MARGIN-LEFT: -12.6pt; BORDER-LEFT: medium none; WIDTH: 380.6pt; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt" cellSpacing=0 cellPadding=0 width=500 border=1>
<TBODY>
<TR style="HEIGHT: 30.35pt">
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 198pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 30.35pt" width=264 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">齿</SPAN><SPAN lang=EN-US style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">轮</SPAN><SPAN lang=EN-US style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">种</SPAN><SPAN lang=EN-US style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">类</SPAN></FONT></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 143.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 30.35pt; mso-border-left-alt: solid windowtext .5pt" width=191 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN class=blk12>钢号选择</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 139pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 30.35pt; mso-border-left-alt: solid windowtext .5pt" width=185>
<P class=MsoNormal style="TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">备</SPAN><SPAN lang=EN-US style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">注</SPAN></FONT></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 198pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" width=264 colSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>汽车、拖拉机及机床中的不重要齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 143.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=191 colSpan=2 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt"><SPAN class=blk12>45</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 139pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=185>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">调</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt; mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">质</SPAN></FONT></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 198pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" width=264 colSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>中速、中载车床变速箱、钻床变速箱次要齿轮及高速、中载磨床砂轮齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 139pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=185>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>调质+高频淬火</FONT></SPAN></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 198pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" width=264 colSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>中速、中载较大截面机床齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 143.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=191 colSpan=2 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">40Cr</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">42SiMn</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">35SiMn</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">45MnB</SPAN></FONT></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 139pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=185>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">调</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt; mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">质</SPAN></FONT></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 198pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" width=264 colSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>中速、中载并带一定冲击的机床变速箱齿轮及高速、重载并要求齿面硬度高的机床齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 139pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=185>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>调质+高频淬火</FONT></SPAN></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 90pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-top-alt: solid windowtext .5pt" width=120 rowSpan=5>
<P class=xl25 style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 100%; mso-pagination: none"><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt"><SPAN class=blk12>&nbsp;&nbsp;&nbsp; 起重机械</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>运输机械</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>建筑机械</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>水泥机械</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>冶金机械</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>矿山机械</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>工程机械</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>石油机械</FONT></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>等设备中的低速重载大齿轮</FONT></SPAN></P></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 108pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=144 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>一般载荷不大、截面尺寸也不大，要求不太高的齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 26.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=35>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>Ⅰ</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=156>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">35</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">45</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">55</SPAN></FONT></P></SPAN></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 139pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=185 rowSpan=5>
<P class=MsoNormal style="LINE-HEIGHT: 150%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">1.</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">少数数直径大、载荷小、转速不高的末级传动大齿轮可采用</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">SiMn</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">钢正火</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 150%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">2</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">．根据齿轮截面尺寸大小及重要程度，分别选用各类钢材</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">(</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">从</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">I</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">到</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">v</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">，淬透性逐渐提高</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">)</SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 150%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">3</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">．根据设计，要求表面硬度大于</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">40HRC</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">者应采用调质十表面淬火</SPAN></FONT></P></SPAN></SPAN></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 26.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=35>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>Ⅱ</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=156>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">40Mn</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">50Mn2</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">40Cr</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">35SiMn</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">42SiMn</SPAN></FONT></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 108pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=144>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>截面尺寸较大，承受较大载荷，要求比较高的齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 26.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=35>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><SPAN class=blk12>Ⅲ</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=156>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">35CrMo</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">42CrMo40CrMnMo</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">35CrMnSi</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">40CrNi</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">40CrNiMo</SPAN><SPAN style="mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">、</SPAN><SPAN lang=EN-US style="mso-bidi-font-size: 12.0pt">45CrNiMoV</SPAN></FONT></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 108pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=144 rowSpan=2>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN class=blk12>截面尺寸很大、承受载荷大、并要求有足够韧性的重要齿轮</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 26.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=35>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN class=blk12>Ⅳ</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=156>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US>35CrNi2Mo</SPAN><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN lang=EN-US>40CrNi2Mo</SPAN></FONT></P></SPAN></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 26.6pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=35>
<P class=MsoNormal style="TEXT-INDENT: 0.05pt; LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN class=blk12>Ⅴ</FONT></SPAN></P></SPAN></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=156>
<P class=MsoNormal style="LINE-HEIGHT: 100%; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" align=center><SPAN class=blk12><SPAN lang=EN-US>30CrNi3</SPAN><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN lang=EN-US>34CrNi3Mo</SPAN><SPAN style="mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN lang=EN-US>37SiMn2MoV</SPAN></FONT></P></SPAN></TD></TR></TBODY></TABLE></SPAN><BR>&nbsp;&nbsp;&nbsp;</SPAN><SPAN class=blk12>注：低速、重载大齿轮用钢的I～Ⅴ类基本上按淬透性划分，可参看第3章的表l5．3-6。&nbsp;</SPAN><BR>&nbsp;&nbsp;&nbsp;</SPAN><SPAN class=blk12> </SPAN>

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