PRODUCTION OF TUNGSTEN CARBIDE-BASE SINTERED HARD ALLOY
申请公布号:JPS60247431(A)
申请号:JP19840103223
申请日期:1984.05.22
申请公布日期:1985.12.07
发明人:YOSHIMURA HIRONORI
分类号:B21J1/04;B21J5/00;C22F1/00;C22F1/18
主分类号:B21J1/04
摘要:PURPOSE:To obtain a tungsten carbide-base sintered hard alloy having excellent resistance to chipping and high strength by heating a WC-base sintered hard alloy material to a prescribed temp., pressing uniaxially the material and subjecting the same to plastic working at a specific reduction ratio. CONSTITUTION:The conventional WC-base sintered hard alloy material of which the main component as a component for forming a dispersion phase is constituted of tungsten carbide and the main component as a component for forming a bond phase is constituted of >=1 kind among ferrous metals is heated to 1,100- 1,450 deg.C. The material is subjected in this state to the plastic working under 10- 200% uniaxial pressurization at the reduction ratio in the pressurizing direction. The resistance to chipping and strength are remarkably improved by the above- mentioned method while the excellent wear resistance is maintained.
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