Abstract:
The invention relates to an abrasive particle (10) with at most three surfaces (11, 12, 13), wherein the abrasive particle (10) contains at least one edge (5, 6, 7, 8) which has a corner (1, 2, 3, 4) at at least one end. The abrasive particle (10) can contain a ceramic material, particularly polycrystalline alpha-Al2O3. Abrasive particles (10) as a whole, methods for producing abrasive particles (10), moulds, abrasive articles, methods for producing abrasive articles and methods for abrading a surface are also disclosed.
Abstract:
The invention relates firstly to an abrasive grain (110) with a surface having at least a first face (120) with a first outline (121), and at least one second face (125) with a second outline (126). The first outline (121) does not contain any vertex, but the second outline (126) contains at least one vertex (127). The abrasive grain (110) may comprise a ceramic material, especially polycrystalline alpha-Al2O3. Additionally disclosed are collectives of abrasive grains (110), methods for producing abrasive grains (110), casting moulds, abrasive articles, methods for producing abrasive articles and methods for grinding a surface.
Abstract translation:本发明涉及在一方面,磨粒(110)具有一表面,至少一个第一表面(120)和具有第二外轮廓(126)的第一外轮廓(121)和至少一个第二表面(125)。 第一外轮廓(121)不包含角,但所述第二外轮廓(126)包括至少一个角部(127)。 磨粒(110)可以包括陶瓷材料,特别是多晶α-Al 2 O 3。 此外,磨料颗粒(110)的聚集体中,公开了用于研磨表面的制造磨粒(110),压铸模具,磨料制品,使得磨料制品和方法的方法的方法。