Patent · US Expired

Roll press for crushing abrasive materials

US6086003A · kind A · utility

40Cited by

16References

22Claims

0Family size

Assignee

MASCHINENFABRIK KOEPPERN GMBH & CO. KG · DE

Inventors

Harald Günter · Leutershausen, DE
Werner Plagemann · Bochum, DE
Wolfgang Schutze · Bochum, DE

Key dates

Filing date	May 26, 1998
Grant date	Jul 11, 2000
Priority date	—
Expiry date	May 26, 2018

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.