发明名称 Composite ceramic materials for pulverization media and working parts of a pulverizer
摘要 A pulverizer for pulverizing a product has a container and at least one working part within the container, which may contain a pulverizing medium. At least one of (1) at least an inner liner of the container, (2) at least an outer shell of the working part and (3) at least an outer shell of the pulverizing medium is formed from a composite ceramic material containing aluminum oxide material as a main component, and zirconium oxide material in an amount of 15-40 wt. %. At least one of Y2O3 and CeO2 is present in the zirconium oxide material in an amount of 0.1-5 mol%. A pulverizer may comprise at least one of a working part of the pulverizer and a container having a Vickers hardness (Hv) of 1300 kgf/mm<2> or higher, and a pulverizing medium whose Vickers hardness (Hv) is 100-600 kgf/mm<2> lower than that of the Vickers hardness of said at least one of the working part and the container member. <IMAGE>
申请公布号 EP0811586(A3) 申请公布日期 1999.04.21
申请号 EP19970303969 申请日期 1997.06.09
申请人 TORAY INDUSTRIES, INC. 发明人 OGATA, TOMOHIKO;TAKUWA, MINORU;GOTO, SHOUICHIRO;ITOU, SHIN-ICHI;NAKANO, YASUHIRO;TSURUMI, TORU
分类号 B02C17/16;B02C17/20;C04B35/119 主分类号 B02C17/16
代理机构 代理人
主权项
地址