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Beryllium copper shrapnel silver plating process - precision

by:Fortuna     2021-02-06
Precision electronic technology co. , LTD. , founded in 2008, is a professional design and manufacture of stamping mould and precision parts stamping ODM/OEM professional manufacturers. Professional stamping production and processing precision terminal, shell parts, precision stamping parts, such as beryllium copper strip, stainless steel shrapnel. In order to improve the conductive properties of beryllium copper strip, generally in the workpiece surface a layer of silver plating, plating thickness is usually 5 ~ 8 microns. The traditional silver plating with cyanide plating process, serious environmental pollution, and harmful to human body. In addition, the workpiece surface silver layer is often combined with the bad, and the silver coating is easy to change color and so on. So, beryllium copper plating workpiece must be comprehensive consideration of silver. In order to ensure good adhesion, coating and the magnesium substrate artifacts silver before choose without cyanide plating silver, should be done in the following solution immersion silver processing: choose without cyanide or low cyanide complexing agent to replace highly toxic cyanide, with thiosulfate silver plating solution to add suitable brightener and surfactant as plating silver plating solution. Light additives to glucosinolates semicarbazide, sulfur compounds, nitrogen heterocyclic compounds and nonionic surfactant polyethylene glycol (peg) according to certain proportion distribution of join can, also can choose the sold without cyanide silver plating bright additive. Cathode can be used to ensure the quality of silver coating has good effect. In the process of silver plating, to adjust good interpolar distance and location of Yin and Yang, pay attention to the control of Yin and anode area than in the range of 1 to 1 ~ 2, pay attention to control and regularly adjust the pH of the electrolyte, silver plated electrolyte analysis test the main ingredient content regularly and timely adjust, maintain the electrolyte stability. Bright additive added through hole groove test to determine advisable, can adopt the method of add less frequently, to ensure the quality of beryllium bronze reed silver. Precision contact: wish you a prosperous business, everything goes well, if you want to learn more dynamic, can scan the qr code, pay attention to the public. , is committed to precision stamping processing factory of the world's most professional electronic components
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