公开(公告)号：US06830604B2

公开(公告)日：2004-12-14

申请号：US10278073

申请日：2002-10-23

申请人： Alistair Grearson ,  John Aucote

发明人： Alistair Grearson ,  John Aucote

IPC分类号： C22C110

CPC分类号： C22C29/08

摘要： A dense cemented carbide product is described. The product is manufactured from WC with a grain size between 0.1 and 0.4 &mgr;m, fine grain size cobalt and ruthenium powders. The product is used in PCB machining operations where the addition of 10-25% Ru to the binder phase offers up to 25% wear resistant increases and up to 100% increase in chipping resistance in PCB routing compared to conventional materials (6% cobalt and 0.4 &mgr;m grain size).

摘要翻译： 描述了一种致密的硬质合金产品。 该产品由粒径在0.1和0.4μm之间的WC制成，细粒度的钴和钌粉末制成。 该产品用于PCB加工操作，其中与常规材料相比，粘合剂相中添加10-25％Ru可提供高达25％的耐磨性增加和PCB布线抗折叠性能提高100％（6％的钴和 0.4粒子粒径）。

公开(公告)号：US06521172B2

公开(公告)日：2003-02-18

申请号：US09486586

申请日：2000-05-15

申请人： Alistair Grearson ,  John Aucote

发明人： Alistair Grearson ,  John Aucote

IPC分类号： C22C3200

CPC分类号： C22C29/08

摘要： A dense cemented carbide product is described. The product is manufactured from WC with a grain size between 0.1 and 0.4 ¼ m, fine grain size cobalt and ruthenium powders. The product is used in PCB machining operations where the addition of 10-25% Ru to the binder phase offers up to 25% wear resistant incrases and up to 100% increase in chipping resistance in PCB routing compared to conventional materials (6% cobalt and 0.4 ¼ m grain size).

摘要翻译： 描述了一种致密的硬质合金产品。 该产品由粒径为0.1至0.4微米的WC制成，细粒度的钴和钌粉末制成。 该产品用于PCB加工操作，其中与常规材料相比，粘合剂相中添加10-25％Ru可提供高达25％的耐磨性和PCB布线抗折叠性能提高100％（6％的钴和 0.4μm粒度）。

公开(公告)号：US06413293B1

公开(公告)日：2002-07-02

申请号：US09486603

申请日：2000-08-16

申请人： Alistair Grearson ,  John Aucote ,  Michael John Carpenter

发明人： Alistair Grearson ,  John Aucote ,  Michael John Carpenter

IPC分类号： C22C2900

CPC分类号： C22C29/08

摘要： The present invention relates to a method of making ultrafine WC—Co alloys from a well dispersed mixture of fine and non-agglomerated WC and Co powders, wherein the Co powders have a narrow grain size distribution wherein at least 80% of the grains have sizes in the interval x+0.2x with the interval of variation of 0.4x is not smaller than 0.1 um, and a carbon content of approximately the amount necessary to provide eta phase formation.

摘要翻译： 本发明涉及从精细和非聚集的WC和Co粉末的良好分散的混合物制备超细WC-Co合金的方法，其中Co粉末具有窄的晶粒尺寸分布，其中至少80％的晶粒具有尺寸 间隔x + 0.2x，变化间隔为0.4x的间隔不小于0.1um，碳含量约为提供η相形成所需的量。