MANUFACTURING METHOD OF SINTERED MAGNET
PROBLEM TO BE SOLVED: To provide a method for manufacturing a thin sintered magnet of high orientation by raising the fluidity of a compound and reducing the disturbance of surface orientation caused by friction, while restraining oxidation due to the rise of a formation temperature and an increase...
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| creator | TANIGAWA SHIGEO OGAWA YUICHI |
| description | PROBLEM TO BE SOLVED: To provide a method for manufacturing a thin sintered magnet of high orientation by raising the fluidity of a compound and reducing the disturbance of surface orientation caused by friction, while restraining oxidation due to the rise of a formation temperature and an increase in remaining carbon amount due to an increase in resin amount. SOLUTION: In the manufacturing method of the sintered magnet, the compound is formed by mixing a thermoplastic resin and magnetic material powder, the compound is formed to a molded item by an extrusion or injection molding machine, and the thermoplastic resin is degreased from the molded item and sintered. A supercritical fluid is dissolved inside the extrusion or injection molding machine and mixed with the compound, and the molded item is formed by extrusion or injection molding in a magnetic field. COPYRIGHT: (C)2005,JPO&NCIPI |
| format | Patent |
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SOLUTION: In the manufacturing method of the sintered magnet, the compound is formed by mixing a thermoplastic resin and magnetic material powder, the compound is formed to a molded item by an extrusion or injection molding machine, and the thermoplastic resin is degreased from the molded item and sintered. A supercritical fluid is dissolved inside the extrusion or injection molding machine and mixed with the compound, and the molded item is formed by extrusion or injection molding in a magnetic field. 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SOLUTION: In the manufacturing method of the sintered magnet, the compound is formed by mixing a thermoplastic resin and magnetic material powder, the compound is formed to a molded item by an extrusion or injection molding machine, and the thermoplastic resin is degreased from the molded item and sintered. A supercritical fluid is dissolved inside the extrusion or injection molding machine and mixed with the compound, and the molded item is formed by extrusion or injection molding in a magnetic field. 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SOLUTION: In the manufacturing method of the sintered magnet, the compound is formed by mixing a thermoplastic resin and magnetic material powder, the compound is formed to a molded item by an extrusion or injection molding machine, and the thermoplastic resin is degreased from the molded item and sintered. A supercritical fluid is dissolved inside the extrusion or injection molding machine and mixed with the compound, and the molded item is formed by extrusion or injection molding in a magnetic field. COPYRIGHT: (C)2005,JPO&NCIPI</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BASIC ELECTRIC ELEMENTS CASTING ELECTRICITY INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING WORKING METALLIC POWDER |
| title | MANUFACTURING METHOD OF SINTERED MAGNET |
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