ULTRA-HIGH STRENGTH FUSION GALVANIZED STEEL SHEET HAVING EXCELLENT PLATING PROPERTIES AND PLATING ADHESION PROPERTIES AND METHOD FOR MANUFACTURING ULTRA-HIGH STRENGTH FUSION GALVANIZED STEEL SHEET

摘要

The present invention provides an ultra-high strength fusion galvanized steel sheet having excellent plating properties and plating adhesion properties and a method for manufacturing the ultra-high strength fusion galvanized steel sheet by improving problems of non-plating and the peeling of plating formed on the surface caused by using existing non-plating elements. According to the present invention, the spread of easily oxidized elements of steels on a steel plate surface during sintering can be suppressed by controlling a sintering process condition when the fusion galvanized steel sheet is manufactured by using a steel sheet containing elements forming oxide on the surface of the steel sheet at high temperatures.;COPYRIGHT KIPO 2014