US 12,172,172 B2
Wear-resistant element for a comminuting apparatus
Marc Tigges, Ahlen (DE); and Baris Irmak, Beckum (DE)
Assigned to FLSmidth A/S, (DK)
Appl. No. 17/780,152
Filed by FLSmidth A/S, Valby (DK)
PCT Filed Nov. 25, 2020, PCT No. PCT/EP2020/083409
§ 371(c)(1), (2) Date May 26, 2022,
PCT Pub. No. WO2021/105237, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 2019/5840 (BE), filed on Nov. 26, 2019; and application No. 10 2019 218 219.4 (DE), filed on Nov. 26, 2019.
Prior Publication US 2022/0410168 A1, Dec. 29, 2022
Int. Cl. B02C 4/30 (2006.01)
CPC B02C 4/305 (2013.01) [B02C 2210/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wear-resistant element configured for partial insertion into a recess in a surface of a wear area of a comminuting device, wherein the wear-resistant element comprises:
a fastening region that is comprised of metal and is configured to be connected to the recess in the surface of the wear area; and
a wear region that protrudes at least partially from the surface of the wear area, with the wear region including a shell and a core disposed inside the shell, wherein the core is comprised of metal and the shell is comprised of a ceramic that contains yttrium-stabilized, tetragonal polycrystalline zirconium oxide (TPZ), wherein the TPZ makes up at least 60% by volume of the ceramic in the shell.