A method of forming an Al-Zn-Si-Mg alloy coating on a steel strip includes dipping steel strip into a bath of molten Al-Zn-Si-Mg alloy and forming a coating of the alloy on exposed surfaces of the steel strip. The method also includes controlling conditions in the molten coating bath and downstream of the coating bath so that there is a uniform Al/Zn ratio across the surface of the coating formed on the steel strip. An Al-Zn-Mg-Si coated steel strip includes a uniform Al/Zn ratio on the surface or the outermost 1-2μm of the Al-Zn-Si-Mg alloy coating.
申请公布号
WO2014134675(A1)
申请公布日期
2014.09.12
申请号
WO2014AU00213
申请日期
2014.03.06
申请人
BLUESCOPE STEEL LIMITED
发明人
RENSHAW, WAYNE ANDREW;TU, CAT;WILLIAMS, JOE;HODGES, JASON