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1.发明授权Diamond and cubic boron nitride abrasive compacts using size selective abrasive particle layers and process for making same 失效使用尺寸选择性磨料颗粒层和其制造方法的钻石和CUBIC BORON NITRIDE磨料精炼
公开(公告)号：EP0054846B1
公开(公告)日：1985-02-20
申请号：EP81110302.7
申请日：1981-12-10
CPC分类号： C22B26/00 , B01J3/062 , B01J2203/062 , B01J2203/0645 , B01J2203/0655 , B01J2203/066 , B01J2203/0685 , B22F7/06 , B22F2998/00 , B22F2999/00 , B24D3/06 , C22C26/00 , B22F2207/13 , B22F1/0014
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2.发明公开Diamond and cubic boron nitride abrasive compacts using size selective abrasive particle layers and process for making same 失效通过使用所选择的粒度和它们的制备方法的耐磨颗粒的层耐磨金刚石和立方氮化硼的附聚物。
公开(公告)号：EP0054846A1
公开(公告)日：1982-06-30
申请号：EP81110302.7
申请日：1981-12-10
CPC分类号： C22B26/00 , B01J3/062 , B01J2203/062 , B01J2203/0645 , B01J2203/0655 , B01J2203/066 , B01J2203/0685 , B22F7/06 , B22F2998/00 , B22F2999/00 , B24D3/06 , C22C26/00 , B22F2207/13 , B22F1/0014
摘要： Disclosed is an improved process for preparing a composite compact wherein a mass of abrasive crystals, a mass of metal carbide, and a bonding medium are subjected to a high-temperature/high pressure process for providing a composite compact. The sintered carbide mass supports the mass of abrasive crystals and bonding or catalyst metal, and the abrasive crystal grains are directly bonded to adjacent crystal grains in the mass thereof. Such improved process comprises disposing the mass of abrasive crystals in layers wherein the coarsest layer is closest to the carbide mass and is composed of crystals having a largest dimension of between about 75 and 500 µm and the finest layer is disposed farthest away in the carbide mass and is composed of crystals having a largest dimension of less than 10 µm. The abrasive crystals are selected from the group consisting of diamond and cubic boron nitride and preferably are diamond; the metal carbide preferably is tungsten carbide; and the bonding metal preferably is cobalt. The resulting improved composite compact also is disclosed.
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