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POWDER METALLURGICAL PRODUCT AND ITS PRODUCTION AND POWDER METALLURGY METHOD AS WELL AS POWDER MOLDING DEVICE FOR POWDER METALLURGY
POWDER METALLURGICAL PRODUCT AND ITS PRODUCTION AND POWDER METALLURGY METHOD AS WELL AS POWDER MOLDING DEVICE FOR POWDER METALLURGY
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机译：粉末冶金产品及其生产和粉末冶金方法以及粉末冶金的粉末成型装置
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摘要
PROBLEM TO BE SOLVED: To produce powder metallurgical products with which the occurrence of crack in high-temp. holding parts, etc., is prevented by loading the first powder material which is charged with a second powder material at a prescribed charging speed and is agitated into a powder mold at a prescribed speed and subjecting these materials to pressurizing and sintering. ;SOLUTION: The prescribed amt. of the first powder material 2 which is a base material is stored in a first storage means 3. The second powder material 4 which is a compounding material is continuously or intermittently transferred therein at a predetermined charging speed from a second storage means 5 and both materials are agitated and mixed by an agitating means 7. The powder material in the first storage means 3 is continuously or intermittently charged from above simultaneously therewith into the powder mold 8 at a prescribed charging speed via a powder charging means 9. The powder materials loaded into the powder mold 8 are thereafter pressurized in a vertical direction and are sintered, by which the powder metallurgical products reinforced by compounding the compounding material with the base material are obtd. As a result, the thermal stresses generated in the high-temp. holding parts are relieved, the occurrence of the trouble, such as crack, is prevented and the increase in the volumetric rate of the compounding material is made possible.;COPYRIGHT: (C)1997,JPO
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