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利用电解池原理在机械制品上沉积出附着良好的

网址:www.ljhdjs.com时间:2024-03-27 15:02:36(部分内容来源于网络,不代表本站观点)

利用电解池原理在机械制品上沉积出附着良好的、但性能和基体材料不同的金属覆层的技术。电镀层比热浸层均匀,一般都较薄,从几个微米到几十微米不等。通过电镀,可以在机械制品上获得装饰保护性和各种功能性的表面层,还可以修复磨损和加工失误的工件。
The technology of depositing metal coatings with good adhesion but different properties and substrate materials on mechanical products using the principle of electrolytic cell. Electroplated coatings are more uniform than hot-dip coatings and are generally thinner, ranging from a few micrometers to tens of micrometers. Through electroplating, decorative protective and various functional surface layers can be obtained on mechanical products, and workpieces with wear and processing errors can also be repaired.
电镀产品
Electroplated products
电镀产品此外,依各种电镀需求还有不同的作用。举例如下:
Electroplated products also have different functions depending on various electroplating requirements. For example:
1.镀铜:打底用,增进电镀层附着能力,及抗蚀能力。(铜容易氧化,氧化后,铜绿不再导电,所以镀铜产品一定要做铜保护)
1. Copper plating: used as a base to enhance the adhesion and corrosion resistance of the electroplating layer. (Copper is prone to oxidation, and after oxidation, copper green no longer conducts electricity, so copper plated products must be protected with copper.)
2.镀镍:打底用或做外观,增进抗蚀能力及耐磨能力,(其中化学镍为现代工艺中耐磨能力超过镀铬)。(注意,许多电子产品,比如DIN头,N头,已经不再使用镍打底,主要是由于镍有磁性,会影响到电性能里面的无源互调)
2. Nickel plating: used as a base or for appearance, to enhance corrosion resistance and wear resistance (among which chemical nickel has a higher wear resistance than chrome plating in modern technology). (Note that many electronic products, such as DIN heads and N-heads, no longer use nickel as a base, mainly because nickel has magnetism that affects passive intermodulation in electrical performance.)
3.镀金:改善导电接触阻抗,增进信号传输。(金最稳定,也最贵。)
3. Gold plating: improves conductive contact impedance and enhances signal transmission. (Gold is the most stable and expensive.)

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