| 摘要 |
The invention relates to a grinding roller (1) that can bе integrated into a roller mill, especially a particle bed roller mill, comprising two grinding rollers (1) which are driven in counter rotation and form a gap therein between for the material to be ground. Said grinding roller comprises a steel roller base body (2) and a hard material shell (3) which is applied thereto by means of plasma powder build-up welding. The aim of the invention is to improve the wearing and operating behavior of such grinding rollers. To this end, the roller base body (2) consists of a low-carbon, low-alloy case-hardened steel, and the hard material shell (3) consists of a low-carbon, high-alloy steel material. |
