公开(公告)号：EP1803532A1

公开(公告)日：2007-07-04

申请号：EP06026434.8

申请日：2006-12-20

申请人： SEIKO EPSON CORPORATION

发明人： Watanabe, Atsushi ,  Izaki, Hiroshi

IPC分类号： B24C1/00 ,  B24C1/06 ,  B24C1/10 ,  B24C11/00

CPC分类号： B24C11/00 ,  B24C1/06 ,  B24C1/083 ,  B24C1/10

摘要： Powder for grinding according to the present invention is powder for grinding that is manufactured according to the atomize method and serves as a medium for grinding a surface of a base substrate to form concave portions. The powder for grinding contains as its components at least one of Fe and Ni and W (tungsten) and a content of W is 30 to 55 wt% and a specific gravity thereof is equal to or higher than 8.5. Preferably, the powder for grinding further contains Cr at a content of 1 to 25 wt%. Preferably, the powder for grinding further contains B at a content of 0.5 to 4 wt%. It is possible to surely collect the powder for grinding making use of a difference between a specific gravity of the powder for grinding and a specific gravity of grinding wastes. The powder for grinding collected is suitable for being served for reuse at least once.

摘要翻译： 根据本发明的研磨用粉末是根据雾化法制造的粉碎用作研磨基材的表面的介质，以形成凹部。 用于研磨的粉末包含Fe和Ni中的至少一种和W（钨）中的至少一种，W的含量为30〜55重量％，比重为8.5以上。 优选地，研磨用粉末还含有含量为1〜25重量％的Cr。 优选用于研磨的粉末还含有含量为0.5〜4重量％的B。 使用研磨用粉末的比重和研磨废弃物的比重可以确定地收集用于研磨的粉末。 收集用于研磨的粉末适用于至少再次使用一次。