The ASTM D1732-03 (2023) standard covers chemical treatment and anode treatment procedures for magnesium alloy surfaces in order to prepare them for painting. The standard describes different types of chemical treatment and anode treatment methods, including alkaline cleaners, acid cleaners, chromium picking, and sealing chromium picking, among others. These treatment procedures apply to different kinds and forms of magnesium alloys, and provide detailed requirements for magnesium alloy surface preparation. The standard emphasizes the use of non-carcinogenic treatment methods to ensure safety, while also recommending coating mass control tests to evaluate the effectiveness and durability of coatings in practical applications.
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