Patent ID: 9719162
Date: 2017-08-01
CPC Classifications: C23C

Claim:
1. A method for hot-dip coating of a steel strip running in a bath of liquid metal or of a metal alloy contained in a pan, during which dross are formed during the coating and float at a surface of the bath comprising the steps of: moving the dross away from a surface of the strip by at least one inductor and accumulating the dross in at least one area of the pan; producing a sliding electromagnetic field oriented along a given direction and generating a magnetomotive force by each inductor; displacing the accumulated dross via the magnetomotive forces towards at least one container or towards at least one area of the surface of the bath from which the dross are discharged; reversing intermittently the given direction of the sliding electromagnetic field for at least one of the inductors so as to modify flows of the dross inside the pan.