所标尺寸为处理前的
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美国MIL-C-5541标准 (Chemical conversion coating on Aluminium and their alloy)。/ R4 e" x( q2 b( |4 ~; g1 P8 A) _5 h
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MIL-C-81706标准(Chemical conversion material for coating Aluminium & Aluminium alloy) etc. Chem-film (Alodine.)8 ?, ]' B/ }8 T8 G6 O" z- {
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ASTM B-449 也有部份関係。
( k. s8 g$ ]1 ^( [ z1)化学导电氧化与alodyne是相同的处理办法。alodyne也有其导电性能。
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Chemical Films(化成皮膜). \1 i9 j$ S' R5 u
2 @5 x- Y1 A% p6 JCoatings for aluminum. Color can vary from colorless to golden - iridescent - brown. Materials should conform to Mil - C - 81706. Coatings shall be continuous free from powdery areas, breaks, scratches, etc.
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MIL-C-5541E No dimensional change 。Normally yellow. Specify CLEAR if needed.
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Class 1 A
9 Z ~1 _+ {8 M$ ~! Y- I4 MClass 1A is used as a corrosion preventative film (unpainted) or to improve adhesion of paint finish systems.For maximum protection against corrosion for surfaces to be painted or left unpainted.
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5 `& F+ s1 M" LClass 3 7 l) i$ K3 G$ m! v0 w _( k# E
Class 3 is used as a corrosion preventive film for electrical and electronic applications, where low resistance contacts are required.(MAX CONDUCTIVITY)。 |
发表于 2008-10-9 10:13:12
