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AL2O3 AND ZRO2 BASED ABRASIVE GRAIN, METHOD FOR THE PRODUCTION AND USE THEREOF 发明授权

2023-06-19 1540 275K 0

专利信息

申请日期 2025-07-11 申请号 EP01989539
公开(公告)号 EP1341866B1 公开(公告)日 2006-02-01
公开国别 EP 申请人省市代码 全国
申请人 TREIBACHER SCHLEIFMITTEL GMBH
简介 An Al2O3 and ZrO2 based abrasive grain containing titanium compounds in a reduced form, especially in the form of oxides and/or suboxides and/or carbides and/or oxycarbides and/or oxycarbonitrides and/or suicides, corresponding to a proportion of 0.510 wt. %, expressed as TiO2, containing 20-50 wt. % ZrO2, wherein more than 75 wt. % of the ZrO2 is present in a tetragonal crystal form, having an overall carbon content of 0.03-0.5 wt. %, a proportion of impurities caused by raw materials of less than 3.0 wt. %, wherein the rare earth content calculated in the form of oxides is less than 0.1 wt. %, having an Si-compound content of 0.05-1.0 wt. %, expressed as SiO2, and an Al2O3 content of 50-80 wt. %, obtained by melting a mixture required for a corresponding abrasive grain composition, said mixture corresponding to Al2O3, ZrO2, TiO2 and TiO2, and/or raw materials containing the latter in the presence of a surplus of a reducing agent and quenched in such a way that the melt is fully solidified in less than 10 seconds. The invention also relates to a method for the production thereof and the use thereof in abrasives.


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