China Rare Earth Permanent Magnet Manufacturer

Sintered Neodymium Magnets Production Process
Receiving Orders:
We create a set of standards and make plans for producing and delivering according to product drawings.
Producing Blanks: We can produce blanks in certain shapes that meet requirements of customers.
Mechanical Process: We process blanks and form the shapes as per drawing.
Surface Treatment: Based on needs of customers, NdFeB magnets will be coated, which have corrosion resistant abilities.
Packaging and Delivering: Products will be packaged as per customers’ demand and we guarantee to deliver products to customers without any damages.

Blank Production Process of Neodymium Permanent Magnets:
Preparation of raw materials - Strip casting - Hydrogen decrepitating - Jet milling - Performance inspection – Sintering - Shape forming



Sintering Process of NdFeB Magnets
Theory:
Part of metals on surface of particles will melt into alloy solution which flows between gaps of particles and a big power will drag every particle together. A product with many gaps will become a compact product.
Classification: high-temperature sintering, one-off sintering and secondary sintering.
High temperature:
Product density and residual magnetism can be improved.
Timeliness:
Uneven distribution of rich neodymium can be optimized and coercive force and energy product can be enhanced. Sintering elements: vacuum degree, temperature, heating rate and heat preservation time