When the concentration electrolysis test pvd coating machine remains unchanged, the coating machine changes the current density, electrolyte temperature, and smooth (hard) chromium can obtain three different lattice layers, namely, gray face, bright and milky white chromium layer

1) The gray chromium layer is obtained at low temperature, and the chromium layer of the coating machine is obtained at high current density. From a high degree (HV=uoo), the method of toughness, a mesh pattern, strong color, dark crystal. Chrome plated with measuring tools.

2) The bright chromium layer is the chromium layer obtained at the medium temperature, and the coater has low current density. High hardness (HV=800), good toughness, wear resistance, small internal stress, dense grid lines, fine grains, and bright surface. Applicable to repair of worn parts.

3) The milky white chromium layer is a chromium layer obtained at a higher temperature. The plastic coating machine (HV=400 - 500) with low current density and low hardness has good plasticity, no reticular wrinkles, fine crystals, and looks like white. It is suitable for increasing the size of parts under impact load and plating decorative chromium.

Porous (loose hole chromium plating, chromium plating layer) pvd coating machine, dot chromium layer and groove chromium layer can be used by electrochemical and mechanical methods. Porous chromium plating adsorbs lubricating oil. Therefore, it has better wear resistance.

When the chromium plated parts on the chromium plated cathode of the predetermined line will lead to anodes, the chromium plated pvd coating machine will electrolyze the acid solution of the personality (electrolytic discharge), and through DC, the surface of the chromium layer is coated with a thin and uniform layer!