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POWDERY MIXTURE FOR POWDER METALLURGY, AND SINTERED COMPACT MADE OF METAL POWDER HAVING EXCELLENT MACHINABILITY
POWDERY MIXTURE FOR POWDER METALLURGY, AND SINTERED COMPACT MADE OF METAL POWDER HAVING EXCELLENT MACHINABILITY
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机译：粉末冶金用粉末混合物，具有优异的可加工性的金属粉末烧结致密粉
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摘要
PROBLEM TO BE SOLVED: To provide a powdery mixture for powder metallurgy which can provide a sintered compact having excellent machinability and drill cuttability in combination.;SOLUTION: A metal powder is mixed with a powder for alloying, a powder for improving machinability and a lubricant powder. Preferably, the powder for improving machinability consists of a soft metal compound powder and a hard metal compound powder, and as for the blending quantity thereof, by mass% based on the total content of the metal powder, the powder for alloying and the powder for improving machinability, that of the hard metal compound powder is controlled to 0.1 to 0.5%, and that of the soft metal compound powder is controlled to 0.01 to 1.0%. As the hard metal compound powder, metal nitride powder is used. The metal nitride is preferably composed of one or more kinds selected from TiN, AlN and Si3N4. On the other hand, as the soft metal compound powder, the powder of talc, enstatite, kaolin, mica, fluorite, water-granulated slag or the like is exemplified. The sintered compact produced from the same powdery mixture is made into a sintered compact excellent in cuttability wherein the grains of the soft metal compound with a hardness lower than that of the average hardness of the base phase and the grains of the hard metallic compound with a high hardness are dispersed into the base phase, and excellent machinability and excellent cuttability are combined.;COPYRIGHT: (C)2011,JPO&INPIT
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机译：解决的问题：提供一种粉末冶金用粉末混合物，该粉末混合物可以提供具有优异的切削性和钻削切削性的烧结压块。;解决方案：将金属粉末与合金化粉末，改善切削性的粉末和润滑剂混合。粉末。优选地，用于改善切削性的粉末由软金属化合物粉末和硬金属化合物粉末组成，并且其混合量基于金属粉末，合金化粉末和用于加工的粉末的总含量为质量％。为了提高切削性，将硬质金属化合物粉末的切削性控制在0.1〜0.5％，将软金属化合物粉末的切削性控制在0.01〜1.0％。作为硬质金属化合物粉末，使用金属氮化物粉末。金属氮化物优选由选自TiN，AlN和Si 3 N 4 中的一种或多种组成。另一方面，作为软金属化合物粉末，示例为滑石粉，顽辉石，高岭土，云母，萤石，水粒化炉渣等的粉末。由相同粉末混合物制成的烧结体被制成切削性优异的烧结体，其中硬度低于基相平均硬度的软金属化合物颗粒和硬度低于基相平均硬度的硬金属化合物颗粒。高硬度被分散到基相中，并结合了优异的切削性和优异的可切削性。;版权所有：（C）2011，JPO＆INPIT
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