crocodile168 发表于 2006-7-5 22:46:52

言简意赅话加工

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN lang=EN-US><FONT face="Times New Roman">1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">:铆工常用的锤有哪几类?</SPAN></FONT><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有手锤,大锤,型锤。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆工常用的凿子有哪几类?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有扁凿和狭凿两大类。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>3</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫钢?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">答:含碳量低于</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">2.11%</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的铁碳合金叫钢。</SPAN></FONT><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>4</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫高碳钢?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">答:含碳量大于</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">0.6%</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的钢叫高碳钢。</SPAN></FONT><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>5</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:钢根据用途可分几类?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:可分为结构钢,工具钢和特殊用途钢。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>6</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:钢按其端面形状可分几类?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:可分为板材,管材,型材,线材。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>7</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:钢材变形矫正的基本方法有哪两种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有冷作矫正和加热矫正。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>8</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什麽叫装配夹具?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:指在装配过程中用来对零件施加外力,使其获得可靠定位的工艺装备。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>9</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:冷作矫正的基本方法有几类?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有手工矫正和机械矫正。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>10</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:加热矫正分哪几类?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:分全加热矫正和局部加热矫正。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>11</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:局部加热矫正加热区的形状有几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有点状,线状,三角形三种。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>12</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:角钢变形有哪几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有扭曲,弯曲,角变形三种。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>13</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:槽钢的变形有哪几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有扭曲,弯曲,翼板局部变形。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>14</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫冷作矫正?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:再常温下进行的矫正叫冷作矫正。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>15</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:分离包括哪几道工序?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:包括落料,冲孔,切口三个工序。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>16</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫冲压?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:使板料经分离或成形得到制件的过程。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>17</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:冲压有哪些优点?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:产品质量好,生产率高,节约材料,降低成本,易实现自动化。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>18</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫弯曲成型?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:将坯料弯成所需形状的加工方法。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>19</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆接的基本形式有那三种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:对接,搭接,角接。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>20</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫铆接?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:利用铆钉将两个或两个以上构件连接为一个整体。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>21</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:常用的铆钉有几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有半圆头,沉头,半沉头,平头,平锥头,扁圆,扁平。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>22</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆接的种类有哪几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有强固铆接密固铆接紧密铆接。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>23</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什麽叫装配?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:将各个零件按照一定技术条件联合成构件的过称。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>24</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:装配的三要素是什么?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:定位,支撑,夹紧。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>25</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:金属结构的连接方法有哪几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有焊接,铆接,螺栓连接,铆焊混合连接。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>26</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:防样常用的工具有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:粉线,石笔,画针,尺子,样冲,手锤。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>27</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:求相贯线的主要方法有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有素线法,辅助平面法,球面法。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>28</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:求直线段实长的方法有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:旋转法,直角三角形法,换面法,支线法。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>29</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:作展开图的方法有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有作图法,计算法。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>30</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:常用的展开方法有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有平行线法,放射线法,三角形法。</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p><FONT face="Times New Roman" size=3>&nbsp;</FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN lang=EN-US><FONT face="Times New Roman">31</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">:材料剪切断面可分为哪几部分?</SPAN></FONT><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:塌角,光亮带,剪裂带,毛刺。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>32</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:矫正分哪几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:分手工矫正,机械矫正,火焰矫正。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>33</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什麽叫基准?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:零件图上用来确定其他点,线,棉位置的点线面。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>34</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫塑性?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:金属材料在外力作用下,永久变形而不破坏的能力。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>35</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>;什麽叫韧性?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:金属材料在冲击载荷作用下不被破坏的能力。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>36</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:防止焊接变形有哪些措施?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:反变形法,刚性固定法,合理的焊接顺序。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>37</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:空间直线投影有哪些特性?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:真实性,积聚性,收缩性。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>38</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什麽叫截交线?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:由平面截割形体而产生的交线。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>39</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什麽叫相贯线?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:由两个平面相交而产生的表面交线。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>40</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:视图分几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:分基本视图,局部视图,斜视图,旋转视图。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>41</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什麽叫基本视图?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:机件向基本投影面投影所得的视图。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>42</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:基本视图有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:主视,俯视,左视,右视,仰视,后视。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>43</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:剖视图分哪几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:分全剖,半剖,局部剖。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>44</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:切削用量对钻削有何影响?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:合理的选择切削用量,可防止钻头过早磨损,或损坏。防止机床过载,提高工件的切削精度和表面粗糙度。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>45</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫攻丝?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:用丝锥在孔壁上切削出内螺纹。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>46</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:底孔直径的大小对功丝有何影响?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:若底孔直径与内螺纹直径一致材料扩张时就会卡住丝锥,这时丝锥容易折断;若过大,就会使攻出的螺纹牙型高度不够而形成废品。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>47</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫套丝?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:用板牙在圆杆管子外径切削出螺纹。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>48</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:选择坡口应注意哪些原则?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">答:(</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">)尽量减少焊缝金属填充量,(</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">)保证焊透和避免产生裂纹,(</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">3</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">)考虑最小焊接变形,(</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">4</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">)便于加工。</SPAN></FONT><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>49</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:开坡口时留钝边有何作用?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:防止接头烧穿。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>50</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:开坡口的方法有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:用风铲加工,机械加工,气割坡口,碳弧气刨坡口。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>51</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫碳弧气刨?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:利用碳极电弧的高温把金属的局部熔化,同时再用压缩空气的气流把这些熔化金属吹掉,达到刨削或切削金属的目的,</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>52</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:磨削有何用途?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:可消除板面焊疤边缘的毛刺,修磨焊缝以及对受压容器的焊缝再探伤检查前进行打磨处理。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>53</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫弯曲成型?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:把平板毛坯,型材或管材,弯成一定角度,曲率,从而形成一定形状的零件。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>54</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:答:什么叫弹复现象?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:弯曲时材料发生弹性变形,当外力去除后,部分弹性变形恢复原态,使弯曲件的形状和角度发生变化。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>55</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆工常用的弯曲成型的方法有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有压弯,滚弯,压延及水火弯板。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>56</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>;影响弯曲成型的因素有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:弯曲力,弹复现象,最小弯曲半径,断面形状。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>57</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:如何确定弯曲力的大小?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:根据被弯材料的机械性能,弯曲方式和性质,弯曲件的形状。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>58</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:影响弯曲弹复的因素有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:被弯材料的机械性能,材料的相对弯曲半径,弯曲角和一些其他因素。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>59</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:影响最小弯曲半径的因素有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:被弯材料的机械性能,弯曲角,材料的弯曲方向,材料的表面质量和剪断面质量,其他因素。</FONT></SPAN></P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN lang=EN-US><FONT face="Times New Roman">60</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">:影响弯曲过程中截面形状变化的因素有哪些?</SPAN></FONT><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:主要有相对弯曲半径,截面几何特点及弯曲方式</FONT></SPAN></P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN lang=EN-US><FONT face="Times New Roman">61</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">钢材加热对钢材弯曲加工的影响如何?</SPAN></FONT><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:钢材加热后所需弯曲力减少,弹复现象消失,最小弯曲半径减小,有利于按加工要求控制变形。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>62</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:通常在何种情况下采用加热弯曲?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:再常温下采用。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>63</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:钢材加热温度为何要限制在一定温度?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:温度过高易造成钢材过烧,温度过低会使成型困难,并引起冷作硬化。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>64</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:采用接触弯曲时,常采用哪些措施解决弹复问题?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:修正模具形状,采用加压校正法,增加压边装置,减小模具间隙。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>65</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫压弯?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:在压力机上使用弯曲模进行弯曲成型的加工法。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>66</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:材料的弯曲变形有几种形式?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有自由弯曲,接触弯曲,矫正弯曲。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>67</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:为什么铆工使用的压模通常采用焊接结构?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:因为这样不仅制造方便,可缩短制模周期,还可提高材料利用率,降低成本。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>68</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫滚弯?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:在滚床上进行弯曲成型的加工方法。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>69</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:用对称式三辊卷板机时常采用哪些措施消除工件直边?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:两头予弯和留加工余量。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>70</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:压延可分为哪两种?铆工常用那种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:分不变薄压延和变薄压延。铆工常用不变薄压延。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>71</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:滚制锥面时应采用哪些措施?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:调节上辊位置,使其与下辊成一定角度倾斜;使小口的进给速度大于大口。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>72</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:较大工件如何滚制?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:为避免其自重引起附加变形,应将板料分为三个区域,先滚压两侧,再滚压中间,必要时由吊车配合。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>73</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:非圆柱面工件任何滚制?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:应依其不同的曲率半径在板料上划分区域,调节轴辊间距进行滚压。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>74</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:工件滚压前有哪些准备工作?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:应将轴辊和板料平面清理干净,清除毛刺以免碰伤工件及轴辊。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>75</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫压延?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:将一定形状的平板毛坯在凸模的压力作用下,通过凹模形成一个开口空心零件的压制过程。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>76</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫水火弯板?</FONT></SPAN><SPAN lang=EN-US><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:通过氧乙炔焰将钢板局部加热收缩而成型。</FONT></SPAN><SPAN lang=EN-US><BR><FONT face="Times New Roman" size=3>77</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:水火弯板有哪些用途?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:水火弯板只适用于曲率较小的零件成型,更多的是与滚压相结合用来加工具有双重弯曲的复杂形状的零件。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>78</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:水火弯板的方法有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有带形加热和点状加热。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>79</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:水火弯板的工艺有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>大:有烤嘴的选择,加热温度和加热速度,冷却方式。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>80</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:水火弯板的冷却方式有几种?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有空冷和水冷两种,水冷又有正背面水冷之分。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>82</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫空冷?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:火焰局部加热后,工件在空气中自然冷却。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>83</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫水冷?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:用水强迫冷却已加热部分的金属,使其迅速冷却,减少热量向背面传递,扩大了正反面的温度差,而提高成型效果。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>84</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:爆炸成型有哪些特点?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:可使模具结构简化;可加工形状复杂,刚性模难以加工的空心零件;回弹小,精度高,质量好;加工成型速度快;不需要冲压设备。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>85</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫角接?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:两板件相互垂直成一点角度连接时,在连接处用角钢作为连接件,把工件铆接在一起。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>86</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆钉排列的主要参数有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:有铆钉距,排距,边距。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>87</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫铆钉距?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:一排铆钉中相邻两铆钉,中心间的距离。</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><BR><FONT face="Times New Roman" size=3>88</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫排距?</FONT></SPAN><SPAN lang=EN-US><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:指相邻两排铆钉孔中心的距离。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>89</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫边距?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:指外排铆钉中心至工件板边的距离。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>90</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:构件板厚与铆钉直径有哪些关系?</FONT></SPAN><SPAN lang=EN-US><BR></SPAN><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">答:单排与双排搭接连接时,铆钉直径取两倍与厚度;单排与双排双盖板连接时,铆钉直径取</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">1.5~1.75</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的板厚。</SPAN></FONT><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>91</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:确定板厚的原则有哪些?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">答:搭接时,按较厚板料厚度确定;厚度相差较大的材料铆接时,以较薄的板料确定;钢板与型材铆接时,取两者的平均厚度;被连接总厚度不应超过铆钉直径的</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">5</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">倍。</SPAN></FONT><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>92</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆钉长度与铆接质量有何关系?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>大:铆钉过长,铆钉墩头就过大,钉杆易弯曲;铆钉过短,则墩粗量不足,钉头成型不完整,影响铆接强度和紧密性。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>93</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆钉孔径在冷铆时如何确定?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:冷铆时,钉杆不易墩粗,为保证连接强度,钉孔直径应与钉杆直径接近。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>94</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:热铆时,铆钉孔径任何确定?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:热铆时,由于受热膨胀变粗,为便于穿孔,钉孔直径应比钉杆直径略大。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>95</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆钉由哪几部分组成?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:由手把,枪体,开关及管接头。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>96</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆钉枪有什么特点?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:具体积小,操作方便,可以进行各种位置的铆接。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>97</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆接可分为哪两种方式?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:可分为冷铆和热铆。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>98</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:什么叫冷铆?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:就是在常温下的铆接。</FONT></SPAN><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>99</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:铆接的终铆温度是多少?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">答:在</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">450~600</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">摄氏度之间。</SPAN></FONT><SPAN lang=EN-US><BR><BR><FONT face="Times New Roman" size=3>100</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>:终铆温度对铆接有何影响?</FONT></SPAN><SPAN lang=EN-US><BR><BR></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>答:过高,会降低钉杆的初应力;过低,铆钉会发生蓝脆现象。</FONT></SPAN></P>

不会打铁的鱼 发表于 2007-10-10 11:04:45

剖视图还有移出断面剖和重合断面剖:loveliness:
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