发明名称 REVESTIMENTO DURO APERFEICOADO PARA FERRAMENTAS DE CORTE E FERRAMENTAS RESISTENTES A ABRASAO
摘要 The novel hardfacing compositions are sintered tungsten carbide granules in an alloy steel matrix, the granules consisting of grains of monotungsten carbide cemented together with a number of novel binders - iron, nickel, alloys of the three iron group metals and metallic alloys including at least one iron group metal and at least one metal outside such group. Also disclosed are granules comprising a mixture of monotungsten carbide and ditungsten carbide cemented together with a metallic binder, preferably iron.
申请公布号 BR6802722(D0) 申请公布日期 1973.01.02
申请号 BR19680202722 申请日期 1968.09.30
申请人 HUGHES TOOL CO 发明人 WHITE A;WISLER D
分类号 C22C29/08;E21B10/08;E21B10/50 主分类号 C22C29/08
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