METHOD OF MANUFACTURING HIGH STRENGTH STEEL SHEET HAVING EXCELLENT ARC SENSING CHARACTERISTICS AND STEEL SHEET HAVING EXCELLENT ARC SENSING CHARACTERISTICS MANUFACTURED THEREOF

摘要

The present invention relates to a method of manufacturing a high strength steel sheet having excellent arc sensing characteristics, and a steel sheet having excellent arc sensing characteristics manufactured by the method. The high strength steel sheet is calibrated using a hot-calibrator after finishing with a special component, wherein the gap between calibrating rolls on an inlet side is 0.9-0.95 times a thickness of the steel sheet after the finishing, and the calibrated steel sheet is hot-calibrated with a hot-calibrator with a gap between calibrating rolls on a final outlet side of 1.07-1.15 times the thickness of the steel sheet; thereby improving electric conductivity of the steel sheet to significantly reduce a rate of defect in an arc robot welding, and providing a steel sheet suitable for the arc robot welding at low manufacturing costs.;COPYRIGHT KIPO 2016