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New star shares with you the future development trend of cyanide free zinc plating
According to the current technical situation, the relevant conditions have been preliminarily met to completely replace cyanide zinc plating in zinc plating. This is because there are many kinds of zinc plating, and a variety of processes can be used to solve the problems previously only by cyanide zinc plating. For example, it is very common to use acid galvanizing for roll galvanizing. However, the zinc coating obtained by zincate zinc plating can basically compete with cyanide zinc plating. In addition to a small number of military products or products with special requirements, it is a general trend for the electroplating industry to achieve cyanide free galvanization.
需要指出的是，无氰电镀只是解决以氰化物为主的剧毒污染问题，并不是采用无氰电镀工艺的就可以不停 止污水处置。关于重金属离子或新引进的一些表面活性物质的影响都是要治理的。
另外，无氰镀锌中引进的一些化学物质，特别是一些新型的铬合剂，有些对环境会不会带来新的问题还并 没有完全的定论，因此，从清洁生产要求的角度来看，开发无氰镀锌的同时而又避免引起新的环境问题才 是至关重要的。
This article is from:http://www.newstar-china.com/
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