所标尺寸为处理前的
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. ~: E& T3 Q& M+ v美国MIL-C-5541标准 (Chemical conversion coating on Aluminium and their alloy)。
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9 e" e5 W. m1 h! x3 q9 EMIL-C-81706标准(Chemical conversion material for coating Aluminium & Aluminium alloy) etc. Chem-film (Alodine.)- ?: |3 t9 G& V; ]+ \
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ASTM B-449 也有部份関係。3 {/ i0 g. B( X; T
1)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)2 U0 Q3 K/ j! M4 O9 a( c
& G1 l& m- c, P9 H& hCoatings 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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7 L% B( Q2 t& f2 ]( K3 X% _- S8 uMIL-C-5541E No dimensional change 。Normally yellow. Specify CLEAR if needed.
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# ]" C4 M2 C0 Q9 G1 k: v! r0 GClass 1 A
" b, D( A6 o' m2 b; ?3 xClass 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.' d3 N% `: a% e1 d) L* y/ t- P5 D
, ~7 p, P* B% X7 \$ xClass 3
. X& B+ I9 [' u! O* gClass 3 is used as a corrosion preventive film for electrical and electronic applications, where low resistance contacts are required.(MAX CONDUCTIVITY)。 |