所標尺寸為處理前的
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1 j- V' [* u Z" `1 F美國MIL-C-5541標準 (Chemical conversion coating on Aluminium and their alloy)。; `% h$ E( o2 T2 L$ @1 L
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' x# ?5 I1 E! K3 ?, GMIL-C-81706標準(Chemical conversion material for coating Aluminium & Aluminium alloy) etc. Chem-film (Alodine.)
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ASTM B-449 也有部份関係。# M. D9 `+ q8 {5 o
1)化學導電氧化與alodyne是相同的處理辦法。alodyne也有其導電性能。
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Chemical Films(化成皮膜)! F( @! ^: V+ t
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Coatings 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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3 L2 }- i# t8 lMIL-C-5541E No dimensional change 。Normally yellow. Specify CLEAR if needed.( ~/ \* v) r( ]3 U1 P/ b) q
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Class 1 A
7 n; R/ O4 K" r& [ JClass 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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7 A T7 m) e% Z2 D3 ?( H: n9 g5 S3 IClass 3 6 B0 i+ f/ }; `4 S3 K9 [2 H
Class 3 is used as a corrosion preventive film for electrical and electronic applications, where low resistance contacts are required.(MAX CONDUCTIVITY)。 |