Patent ID: 9149888
Filing Date: 2015-10-06
Classification: B21B,B23K,C21D,Y02P

Abstract:
1. A clamping jaw of a machine for joining thin strips by welding, the clamping jaw comprising: at least two parts including a first part reducing an intensity of eddy currents created in the clamping jaw by electromagnetic induction generated by a heat treatment device of the machine for joining the thin strips, and a second part that might be affected by induction heating; said first part configured to contact a strip end to be welded to another strip end; said first part having a geometry and a constituent material each configured to reduce a strength of eddy currents capable of being created in said second part of the clamping jaw by electromagnetic induction from the heat treatment device of the machine for joining thin strips, said first part defining a projection going outside of the clamping jaw and configured for extending in a direction of a strip end and being a closest of said at least two said parts to the heat treatment device.