A HARD BODY AS GRID ARMORING FOR A ROLLER PRESS, A METHOD FOR ITS PRODUCTION, AND A ROLLER FOR A ROLLER PRESS

摘要

The wear-resistant hard body consists of a high-strength, iron-based alloy, and comprises an external shell or sleeve made of another material. Roller press rollers usually have a bandage, often referred to as a roller body, in which the hard bodies are inserted as grid armoring. The hard body has a trilaterally closed, external shell. The hard body needs little processing to ensure that it fits into the hole in the bandage, as the shell already does. Thus, a defined fit between the bandage and the shelled hard body is possible. The wear-resistant hard bodies have a circular cylindrical shape. Here, the closed front end of the shell, which in the installed state faces the center of the roller, is shaped in a rounded fashion. Cracking of the bandage due to sharp edges may be prevented. The rounding may be a spherical shape.