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US 6,086,003 AGranted
Roll press for crushing abrasive materials
AssigneeMaschinenfabrik Koppern GmbH & Co. KG
InventorsHarald Gunter, Werner Plagemann, Wolfgang Schutze
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AssigneeMaschinenfabrik Koppern GmbH & Co. KG
InventorsHarald Gunter, Werner Plagemann, Wolfgang Schutze
Estimating the term…
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.
A roll press for processing abrasive materials comprising at least two press rolls, each of said rolls including a cylindrical roll body and a wear layer on the roll body, said wear layer comprising substantially plane zones of a pressed wear-resistant material and spaces between said wear-resistant zones, the spaces being filled prior to operation of the roll press with a sintered composite material of a wear resistance different from said wear-resistant zones, the material in said spaces and the wear-resistant zones being press bonded to said roll body, and the wear resistance of the composite material in said spaces differing from the wear resistance of said wear-resistant zones in accordance with a desired profile which will be obtained through wear.
A roll press for processing abrasive materials comprising at least two press rolls, each of said rolls including a cylindrical roll body and a wear layer on the roll body, said wear layer comprising a first section of a first wear resistance and a second section of a second wear resistance, said first section comprising a wear-resistant material, said second section comprising a sintered composite material, said first and said second sections of said wear layer being hot-isostatic press bonded to said roll body, and said first wear resistance differing slightly from said second wear resistance in accordance with a desired profile to be obtained through wear.
Dependencies are inferred from the claim text.