METHOD FOR THE MANUFACTURE OF AN EXHAUST GAS CONVERTER, TOOL FOR A RING PRESS FOR THE MANUFACTURE OF AN EXHAUST GAS CONVERTER, RING PRESS COMPRISING A TOOL, AND EXHAUST GAS CONVERTER MANUFACTURED WITH A RING PRESS

摘要

A method for manufacturing an exhaust gas converter and a tool for the method are provided. The method includes providing a cylindrical metal pipe and a cylindrical substrate surrounded in a circumferential direction by a mat mount. The substrate is deposited with the mat mount surrounding it inside the metal pipe. A compression force is exerted on the metal pipe, directed in a radial direction, for reducing the cross-section of the metal pipe to a desired size. Regions to which a compression force is applied alternate along the circumferential direction of the metal pipe with regions to which no compression force is applied. A number of regions where no compression force is applied to the metal pipe exceeds the number of tools used for applying the compression force. The tool (4), for a ring press, includes a tool body including a mounting section and a work section with recesses (45).

主权项

1. A method for the manufacture of an exhaust gas converter, the method comprising the steps of:
providing a cylindrical metal pipe; providing a cylindrical substrate surrounded in a substrate circumferential direction by a mat mount, the cross-section of the substrate including the mat mount being smaller or equal to a cross-section of the metal pipe; disposing the substrate with the mat mount surrounding the substrate inside the metal pipe; and exerting a compression force on the metal pipe with tools, the compression force being directed in a radial direction of the metal pipe for reducing the cross-section of the metal pipe to a desired size, wherein regions to which a compression force is applied alternate along a metal pipe circumferential direction with regions to which no compression force is applied; and wherein a number of the regions to which no compression force is applied exceeds a number of the tools used for applying the compression force.