Method of making a crushing roll
US5755033A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1995 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | May 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49563
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a roll press, in particular for processing very abrasive materials, comprising at least two press rolls of which each includes a wear layer arranged on a basic body. The wear layer comprises substantially plane zones of a highly wear-resistant material while the spaces between the highly wear-resistant zones are filled with a material of different wear resistance. Furthermore, the material for the spaces is a composite material which is adapted to be sintered, and the highly wear-resistant zones are formed from hard bodies produced by hot-isostatic pressing. The material for the spaces and the material for the wear-resistant zones are bonded to the basic body in a hot-isostatic pressing process. The wear resistance of the composite material is substantially slightly greater or smaller than the wear resistance of the hard bodies in accordance with a desired profile which will obtained through wear. Furthermore, the invention relates to a production method for providing a corresponding wear layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.