What are the problems with pogo pin thimble connector plating?

A. pogo pin thimble connector plating problems? The color of the gold layer is not normal pogo pin thimble connector gold plating layer color and the normal color of the gold layer is not consistent, or the same supporting products in different parts of the gold layer color differences, the reason for this problem is: 1, plating the impact of impurities in the raw materials when added to the plating solution of the chemical materials into the impurities more than the degree of tolerance of the gold-plating solution will soon affect the color of the layer and the brightness of the gold layer. If it is organic impurities will appear in the gold layer darkening and blooming phenomenon, check the darkening and blooming position is not fixed. If it is metal impurities interfere with the current density will cause the effective range of narrow, Haoer tank test shows that the current density of the specimen is the low end of the current density is not bright or the high end of the low end of the plating can not be bright plating. Reflected in the plated parts is plated red or even black, the color change in the hole is more obvious. 2, the plating current density is too large due to the total area of the plating tank parts calculated wrongly, its value is greater than the actual surface area, so that the amount of plating current is too large, or vibration electroplating amplitude is too small, so that all or part of the plated parts of the groove of the gold plating layer crystallization is rough, the visual gold layer red.

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