ArcelorMittal S.A.
Method for manufacturing a metal sheet with a ZnAl coating and with optimized wiping, corresponding metal sheet, part and vehicle

Abstract:

The present invention provides a method for manufacturing a metal sheet. In this method, at least one of the following equations is satisfied: .times..times..function.<.times..times..function..times..times.<.ti- mes..times..function..times. ##EQU00001## wherein: Z is the distance between the metal sheet and the nozzle along the main ejection direction (E), Z being expressed in mm, d is the average height of the outlet of the nozzle along with the running direction of the metal sheet in front of the nozzle, d being expressed in mm, V is the running speed of the metal sheet in front of the nozzle, V being expressed in ms.sup.-1, P is the pressure of the wiping gas in the nozzle, P being expressed in Nm.sup.-2, and fO.sub.2 is the volume fraction of oxygen in the wiping gas. A metal sheet, part and land motor vehicle are also provided.