Plating pen for electro-brush plating inner bore parts

Abstract

The invention discloses a plating pen for the electrical brush plating of an inner hole type spare part, which comprises a pen holder and a pen body, wherein the pen holder comprises a pen holder main body with a hanging part at the upper part and a clamping part at the lower part, and the pen body comprises at least two plate bodies and brush bristles, and the brush bristles are respectively arranged on one side of either plate body which is connected with the pen holder main body; an anode is clamped by the clamping part, the two plate bodies are parallel to both sides of the anode, and the bottom ends of the two plate bodies and the anode are all arranged on an insulated beam and do not mutually contact. The plating pen has simple structure and low manufacture cost, prolongs the service life of the plating pen, saves the consumption of plating liquid, greatly improves the brush plating work efficiency and has favorable market prospects and application prospects.

Description

technical field [0001] The invention relates to a plating pen for electric brush plating, in particular to a plating pen for electric brush plating which can satisfy simultaneous brush plating of multiple inner hole parts. Background technique [0002] Brush plating is a surface processing technology that uses electrochemical methods to reduce metal ions to metal and deposit them on the surface of metal or non-metal products to form a smooth and dense metal coating that meets the requirements. With the development of science and technology and production, brush plating technology involves more and more fields, and people's requirements for coating are getting higher and higher. At present, the application of metal coating has spread all over the various production and research departments of economic activities, and has great significance in production practice. [0003] However, with the rapid growth of my country's economy, the problem of energy and resources has become m...

AI Technical Summary

Problems solved by technology

[0006] First, the package life is short

As the brush coating thickens and becomes rough, the sheath is easily scratched, which not only easily causes short-circuit burns between the anode and the surface of the workpiece, but also often causes the coating to be mixed with the scraped sheath and absorbent cotton.

[0007] Second, the waste of plating solution is serious

With the prolongation of the brush plating time, the concentration of metal ions in the plating solution decreases, but when the concentration of metal ions drops to about 40% of the original concentration, it is impossible to continue to obtain a qualified coating. In this case, the plating solution has to be scrapped. And at this moment, also have about 40% metal (generally nickel) in the plating bath to be unused, cause very big waste

[0008] The third is that the plating pen needs to be replaced many times

The brush plating process includes multi-step processes such as electric cleaning, strong activation, weak activation, bottom layer and plating working layer. Since the plating solutions cannot be confused with each other, and the residual liquid in the coating material of the plating pen is difficult to clean, so In the brush plating process, the plating pen needs to be replaced in each step, which is extremely inconvenient to realize automatic brush plating

[0009] Fourth, the precision of parts clamping is high

[0010] Fifth, the brush plating temperature is too high

At the same time, due to the small amount of plating solution contained in the parts during brush plating, the circulation of the plating solution is not smooth, so the heat generated by brush plating cannot be released and cooled in time, causing the temperature to rise rapidly and burn the coating

[0011] Sixth, the cost is higher

The plating pen is a consumable. The anode will gradually wear out during the brush plating process. After a period of use, it has to be replaced due to insufficient size. The high-purity graphite used in the anode is more expensive, so the replacement cost of the plating pen is very high.

[0012] To sum up, the design of plating pens in the traditional way can no longer meet the requirements of automatic brush plating of inner holes, and even cannot guarantee qualified products, so it needs to be improved and improved.

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