PROCESS CONTROL
Production process
Nd-Fe-B is manufactured by powder metallurgy process. Raw materials with certain ratio, such as neodymium, dysprosium, iron, cobalt, niobium, praseodymium, aluminum and ferroboron, are smelted in medium frequency induction smelting furnace to form alloy steel ingots, and then crushed into 3-5 μ M The results show that the permanent magnet blank with certain magnetic properties can be obtained by sintering compactly in vacuum sintering furnace and tempering aging. After grinding, drilling, slicing and other processes, the finished product of NdFeB required by users can be obtained after surface treatment.
Sintered NdFeB permanent magnet is a kind of powder metallurgy material with strong chemical activity. It is hard and brittle and easy to be oxidized and corroded. Based on this characteristic, the most effective method is surface protection layer. However, the surface of NdFeB sintered permanent magnet must be treated by necessary pretreatment and proper electroplating process because of the existence of deterioration layer during grinding and the void and oxidation caused by incomplete densification
Chamfer→ Degreasing→ Pickling→ Ultrasonic cleaning→ Plating→ Ageing→ Coating detection
Contact Information
Company Address:
No. 37, Gangyuan North Road, Stainless Steel Industrial Park, Taiyuan City, Shanxi Province
Contact Number:
+86-351-6126064、+86-13934605697 Mr. Cao
Corporate Email:
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