Electroplating technology

An electroplating process and electroplating solution technology, which is applied in the direction of electrolysis, electrolysis components, cells, etc., can solve the problems of the gap in the protective ability of the protective layer, the plating layer foaming and falling off, and the loss of protective effect, so as to improve the speed of electroplating film formation, The effect of uniform pH value and reducing the foaming phenomenon of the coating
CN111411380AInactive Publication Date: 2020-07-14EARTH PANDA ADVANCE MAGNETIC MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EARTH PANDA ADVANCE MAGNETIC MATERIAL
Publication Date
2020-07-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an electroplating technology. The electroplating technology includes a pretreatment process, a vacuum sucking process and an electroplating process. In the pretreatment process, pretreatment is conducted on the surface of a magnet. In the vacuum sucking process, vacuum sucking is conducted on the pretreated magnet, and the vacuum sucking state is maintained. In the electroplating process, the magnet obtained after vacuum sucking is immersed into electroplating liquid, under the condition of negative pressure, ultrasonic waves and water flow impacts, a metal protection layer is electroplated on the surface of the magnet. By means of the electroplating technology, the bonding strength of the manufactured metal protection layer and the magnet is high, in addition, corrosion resistance is good, disengagement is not likely to happen, and in addition, the electroplating efficiency is high.
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Description

technical field

[0001] The invention belongs to the technical field of magnet surface protection, and in particular relates to an electroplating process. Background technique

[0002] Sintered NdFeB magnets are the most magnetic permanent magnet materials so far. They are widely used in the automotive industry, electronic appliances, medical equipment, industrial motors and other fields. They are the fastest growing permanent magnets with the best market prospects in the world today. Material. Sintered NdFeB magnets have outstanding advantages such as high magnetic energy product, high coercive force, high energy density, high cost performance, and good mechanical properties, and have played an important role in the high-tech field. After more than 30 years of research and development, the production process of sintered NdFeB magnets has basically formed alloy smelting→hydrogen crushing→jet milling→forming→sintering→heat treatment, realizing the production of more than 100 ...

Claims

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