Nickel plating protection clamp and nickel plating protection method

Abstract

The invention relates to the technical field of electroplating, in particular to a nickel plating protection clamp and a nickel plating protection method. The nickel plating protection clamp comprises an upper supporting plate, wherein the upper end face is fixedly connected with a first lifting rod; an upper opening mechanism connected with the lower end face of the upper supporting plate; an upper clamp located below the upper opening mechanism and connected with the upper opening mechanism, wherein a wrapping groove is formed in the lower end face of the upper clamp, and the wrapping groove is attached to the upper half portion of the electroplated workpiece and used for clamping the upper half portion of the electroplated workpiece; and a lower clamp located below the upper clamp, wherein a wrapping groove is formed in the upper end face of the lower clamp. According to the nickel plating protection clamp, the upper clamp and the lower clamp are used for clamping the upper half portion and the lower half portion of the workpiece respectively, then the workpiece is placed in electroplating liquid for electroplating, half of the workpiece is electroplated in two times of electroplating, and therefore the electroplated area is not clamped by the clamp in the electroplating process, and the originally clamped area is electroplated as well; and therefore, the electroplating quality of the electroplated area of the workpiece is improved, and the using effect of the electroplating clamp is improved.

Description

technical field [0001] The invention relates to the technical field of electroplating, in particular to a nickel plating protection fixture and a nickel plating protection method. Background technique [0002] Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent metal oxidation ( Such as rust), improve wear resistance, conductivity, reflectiveness, corrosion resistance and enhance the appearance, etc. During electroplating, clamps are generally used to hold the workpiece and then the workpiece is immersed in the electroplating solution for electroplating; [0003] In the prior art, hangers or fixtures are generally used to fix square, frame-shaped and other large and irregularly shaped workpieces, such as molds or crankshafts; after the hangers or fixtu...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, hangers or fixtures are generally used to fix square, frame-shaped and other large and irregularly shaped workpieces, such as molds or crankshafts; after the hangers or fixtures fix the workpieces, the plating solution in the area where the hangers or fixtures contact the workpieces The immersion ability is poor, so the coating in this area is shallow or even has no coating. After the workpiece is fully plated, it is necessary to repair the unplated area of ​​the workpiece;

[0004] In the prior art, the post-repair method is generally used to repair and electroplate the clamped area of ​​the workpiece; that is, to manually use the electroplating repair re-plating machine and electroplating solution to re-plate the unplated area of ​​the workpiece; only after repair can it meet the requirements of GB / T13913- 92 standard; but the thickness of the repaired electroplating layer is different from the thickness of the previous electroplating, which makes the surface of the workpiece electroplated unevenly, which affects the quality of the workpiece, and then affects the wear resistance and corrosion resistance of the workpiece, thus affecting the performance of the workpiece , such as the polarization generated when the crankshaft rotates;

Images