The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2000
Filed:
May. 26, 1998
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.