Title:
MOTOR MAGNETIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/118467
Kind Code:
A1
Abstract:
A motor magnetic material, prepared by the following components in parts by weight: 15-20 parts of iron oxide, 43-45 parts of manganese, 0.5-1.2 parts of neodymium oxide, 4-5 parts of zinc, 25-35 parts of polyamide, 1-3 parts of titanium, 10-15 parts of calcium carbonate, 12-21 parts of molybdenum, 10-15 parts of barium carbonate, 11-14 parts of vanadium, 3-5 parts of calcium, 0.2-0.8 part of strontium carbonate, 15-20 parts of silicon dioxide, 13-32 parts of copper, 21-24 parts of niobium, 0.5-1.2 parts of molybdenum dioxide, 2-6 parts of phenolic resin, 1-3 parts of samarium, 12-21 parts of cobalt, 2-6 parts of a dispersant, and 4-9 parts of a binding agent. The advantages of said material are: by means of rapid cooling and secondary temperature-raising of a blank body, a crystal structure in the blank body is obviously changed compared with primary firing, and the crystal arrangement is more smooth. A Curie temperature of a prepared magnet exceeds 280°C, and power consumption of the magnet is much lower than the prior art.
Inventors:
ZHANG WEIWEI (CN)
Application Number:
PCT/CN2018/119956
Publication Date:
June 18, 2020
Filing Date:
December 09, 2018
Export Citation:
Assignee:
ZHANG WEIWEI (CN)
International Classes:
C04B35/40
Foreign References:
| CN104844188A | 2015-08-19 | |||
| CN104308159A | 2015-01-28 | |||
| CN104308158A | 2015-01-28 | |||
| CN104319048A | 2015-01-28 | |||
| CN107935534A | 2018-04-20 | |||
| JPH0786013A | 1995-03-31 |
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