所標尺寸為處理前的
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) a6 g( L. L- [美國MIL-C-5541標準 (Chemical conversion coating on Aluminium and their alloy)。/ j, q; n: D, f
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MIL-C-81706標準(Chemical conversion material for coating Aluminium & Aluminium alloy) etc. Chem-film (Alodine.), q# o, x0 I8 P U1 K, L
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ASTM B-449 也有部份関係。# l0 X; b. P/ g8 b
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。0 H8 a; ~ l b& {
5 Y: R$ x) m; U" o* j9 \. m8 _Chemical Films(化成皮膜)
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- _; K6 f( ?4 w6 GCoatings 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.0 v) u3 L9 r8 D# f: R6 w* w$ n# T
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MIL-C-5541E No dimensional change 。Normally yellow. Specify CLEAR if needed." X; ~3 Q4 B7 Q4 v; M. V
; D+ p0 ?1 ^7 p$ RClass 1 A * P) \' x- X# ^3 C. \
Class 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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Class 3
& O+ [% f, z f- `Class 3 is used as a corrosion preventive film for electrical and electronic applications, where low resistance contacts are required.(MAX CONDUCTIVITY)。 |