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近年来,由于汽车制造业采取增加铝质零件来减轻汽车自重的做法,因而导致了铝质汽车保险杆和其它一些装饰件着上大众化黑颜色的工艺研究,轻金属上的黑颜色装饰层可以用在常规的光亮阳极处理后的涂色法获得,也可以在零件未焊接前,通过用特种电解液进行整体阳极着色法获得。但在八三年一个由美国机动车工程师学会(SAZ)召开的国际性讨论与展览会上,一些研究人员指出,这些工艺方法并不理想。
In recent years, due to the automobile manufacturing industry to increase the aluminum parts to reduce the weight of the car, which led to the aluminum car bumper and some other decorative parts on the popular black color technology research, light metal black color decorative layer can be used It is obtained by the conventional painting method after bright anodic treatment and also by the monolithic anodic coloring method with special electrolytes before the parts are not welded. However, at an international discussion and exhibition held by the American Society of Automotive Engineers (SAZ) in 1983, some researchers pointed out that these processes were not ideal.