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- ndfeb magnet manufacturing process Molding _ ndfeb strong magnet manufacturers

by:Newland     2020-04-02
- ndfeb manufacturing process 1, equipment press forming, isostatic pressing, 2, the craft is A storage cylinder, said powder: said according to the technological requirements, magnetic field orientation molding powder B: the process in order to bring thousands of NdFeB powder lined up under the action of A magnetic field, and in medium voltage formed A set of mould shape, press in 40 mm are basic requirements of the air gap magnetic field must be greater than 18000 above, at the same time should have photoelectric protector to prevent press the attack. C, pressing the green density of about 3. 2 - - - - - - - - - - - - - - - - - - - 3. 8 g/cm3, and Nd - Fe- Density of 7 B after sintering theory. About 5 g/cm3, so in suppressing the larger cylindrical and square easily because of the large shrinkage cracking of Angle deformation and out-of-tolerance size, so by isostatic pressing was needed to improve the density of green, green density of 4 after by isostatic pressing. 5 g/cm3, the company is now in addition to the low performance of small pillars ( Ф below 10) Ranging from static pressure directly put outside the box last in sintering furnace by isostatic pressing, and the green to prevent oiled isostatic pressing and surface oxidation, must be vacuum encapsulation, before entering the furnace shell oil. 3. Level of production and design of abrasive, abrasive quality directly affects the appearance of the product quality, with the fierce competition in the industry, grinding tool is an important link in cost savings, reduce machining allowance, reduced product deformation, some special products directly to neutralize the production, will determine whether an enterprise competitive one of the important factors.
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