Patent ID: 9650931
Date: 2017-05-16
CPC Classifications: B23K,F01N

Claim:
1. A method for manufacturing an exhaust gas treatment device, which has at least one ceramic substrate body for exhaust gas treatment in a tubular housing, the method comprising the steps of: inserting a substrate body axially into the housing; mounting the inserted substrate body in the housing by means of a mounting mat, wherein the mounting mat envelopes the substrate body in a circumferential direction and is radially prestressed between the substrate body and the housing; providing an axial support, which has a supporting ring and a ring-shaped support element held by the supporting ring; inserting the axial support axially into the housing and positioning the axial support in the housing at an axially prestressed position such that the axial support transmits a predetermined axial force to the first substrate body via the support element in the axially prestressed position; and fixing the axial support to the housing in the axially prestressed position by welding the supporting ring to the housing.