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Method for producing mixed powder for powder metallurgy and production equipment for mixed powder for powder metallurgy
Method for producing mixed powder for powder metallurgy and production equipment for mixed powder for powder metallurgy
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机译：粉末冶金用混合粉末的生产方法及粉末冶金用混合粉末的生产设备
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摘要
Provided are a method and equipment for producing a mixed powder for powder metallurgy, which ensure high safety and have excellent production efficiency. The method for producing a mixed powder for powder metallurgy comprises: a primary mixing/stirring step for mixing and stirring a raw material including an iron-based powder, a powder for an alloy, a binder, and an auxiliary raw material using a first mixing/stirring device provided with a heating means; a secondary mixing/stirring step for mixing and stirring the raw material after the primary mixing/stirring step using a second mixing/stirring device which is different from the first mixing/stirring device and which is provided with a cooling means; and a tertiary mixing/stirring step for mixing and stirring the raw material after the secondary mixing/stirring step using a third mixing/stirring device which is different from the first mixing/stirring device and the second mixing/stirring device, wherein the raw material is heated up to a temperature T1 higher than a melting point Tm of the binder in the primary mixing/stirring step, and the raw material is cooled down to a temperature T2 lower than Tm in the secondary mixing/stirring step.
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