Qingdao Magnet Magnetic Material Co., Ltd.
Qingdao Magnet Magnetic Material Co., Ltd.
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HCNTP-40L Hcj 11.00 NdFeB Compound
Introduction of NdFeB material
NdFeB is composed of neodymium metal, pure iron and boron iron, with the chemical symbol Nd2Fe14B, which is made by adding some metal elements in a certain proportion through multiple metallurgical processes.
NdFeB is subdivided into sintered NdFeB and bonded NdFeB, and the one commonly known as "King of permanent magnet" or "King of magnet" is sintered NdFeB, because the magnetic property of sintered NdFeB is much better than bonded NdFeB.
| No. | 20210604-2 | ||||
| Product Kind | Compound | Binder | PPS | ||
| Product Grade | HCNTP40L | L0T.N0 | NTP210604H | ||
| Delivery Date | 2021-06-04 | Weight(kg) | |||
| Test Item | Required Standard | Test Results | Determine | Remarks | |
| Physical Properties | Melt Flow Rate (g/10min)330℃ 10kg | 300-500 | 400 | OK | |
| Density(g/cm3) | 4.40-4.90 | 4.64 | OK | ||
| Magnetic Propeties |
Br(kGs) | 4.40-4.80 | 4.53 | OK | |
| Hcb(kOe) | 3.80-4.20 | 4.10 | OK | ||
| Hcj(kOe) | 9.50-11.00 | 11.00 | OK | ||
| (BH)max(MGOe) | 4.00-4.80 | 4.63 | OK | ||
Preparation process
Batching - melting - powder making - pressing - sintering (sintered NdFeB has) --Processing--magnetization to finished product, processing process includes: polishing, slicing, wire cutting, punching, hole sleeve, plating, etc.
Surface treatment of NdFeB
The common ones are zinc plating (including color zinc, blue and white zinc, etc.), nickel plating, nickel-copper-nickel plating, baking paint, and the uncommon ones are epoxy resin coating, electrophoresis, phosphating, gold plating, silver plating, chrome plating, etc.
Uses of NdFeB
Electric motors, VCM, electro-acoustic, MRI, magnetic separation equipment, etc.!