Preparation method of large-size directional aluminum-nickel-cobalt magnetic steel
The invention relates to the field of permanent magnet materials, and discloses a preparation method of large-size directional aluminum-nickel-cobalt magnetic steel, which comprises the following steps: (1) preheating a sand mold; (2) smelting to obtain molten steel; (3) bidirectional directional co...
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| creator | LOU YONGHUA ZHANG QIXUE SHU ZENGCHANG FENG JIANTAO JIANG HONGJIONG YU JINGJING ZHAO YU |
| description | The invention relates to the field of permanent magnet materials, and discloses a preparation method of large-size directional aluminum-nickel-cobalt magnetic steel, which comprises the following steps: (1) preheating a sand mold; (2) smelting to obtain molten steel; (3) bidirectional directional cooling is conducted, specifically, the two sides of the sand mold are clamped through water cooling plates for cooling, and molten steel is poured into the sand mold; after casting is completed, the surface of the sand mold is subjected to heat preservation; (4) carrying out sand cleaning and rough machining to obtain a blank; (5) carrying out heat treatment-magnetization-tempering treatment to obtain a semi-finished blank; and (6) finish machining is conducted, and the large-size directional aluminum-nickel-cobalt magnetic steel is manufactured. According to the method, a bidirectional directional cooling process is adopted, completely-oriented isometric crystals can be obtained, the success rate of manufacturing d |
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According to the method, a bidirectional directional cooling process is adopted, completely-oriented isometric crystals can be obtained, the success rate of manufacturing d</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS BASIC ELECTRIC ELEMENTS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS FOUNDRY MOULDING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INDUCTANCES MAGNETS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Preparation method of large-size directional aluminum-nickel-cobalt magnetic steel |
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