求教美國(guó)MIL-C-5541 CLASS 1A

qq41886956

美國(guó)客戶提供的鋁合金產(chǎn)品圖紙中做如下表面處理：CHEMICAL FILM IAW MIL-C-5541 CLASS 1A.DIMENSION APPLY BEFORE APPLICATION.
我要查到MIL-C-5541標(biāo)準(zhǔn),，但看不懂其具體是指什么處理,，請(qǐng)高手賜教,！

hzclife

美國(guó)MIL-C-5541 E 分為 class 1A and class 3, 顏色從無色到黃色,，當(dāng)然也有彩色的,， 藥水系列大多為鉻系,也有磷酸系的, 要求有耐腐蝕要求和增加涂層吸附性要求, 您的要求應(yīng)該是鉻系
黃色皮膜
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怪怪

所標(biāo)尺寸為處理前的

美國(guó)MIL-C-5541標(biāo)準(zhǔn) (Chemical conversion coating on Aluminium and their alloy)。
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MIL-C-81706標(biāo)準(zhǔn)(Chemical conversion material for coating Aluminium & Aluminium alloy) etc. Chem-film (Alodine.)

ASTM B-449 也有部份関係,。
1)化學(xué)導(dǎo)電氧化與alodyne是相同的處理辦法,。alodyne也有其導(dǎo)電性能。
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8 F& e8 ~0 A% ZChemical Films(化成皮膜)

2 u5 a+ @2 T2 t7 Q" e. OCoatings 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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: {1 K4 u1 y) p( ^! L7 L+ e% @MIL-C-5541E No dimensional change ,。Normally yellow. Specify CLEAR if needed.

Class 1 A
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
, G3 v0 D! G0 I/ NClass 3 is used as a corrosion preventive film for electrical and electronic applications, where low resistance contacts are required.(MAX CONDUCTIVITY),。

xcyi818

樓上的,請(qǐng)問你們公司可以做chen-film嗎,我需要幫助!

rlicn

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$ k4 L1 c0 t4 B1 E7 J我們現(xiàn)在有一種新的表面預(yù)處理替代方法，更環(huán)保,，用于波音等飛機(jī)上,，現(xiàn)在想在工業(yè)上推廣，不知道用在哪些地方,。