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HIGH-STRENGTH COLD-ROLLED STEEL SHEET WITH SUPERIOR PHOSPHATE TREATMENT PROPERTY AND A MANUFACTURING METHOD THEREOF, CAPABLE OF IMPROVING THE PHOSPHATE TREATMENT PROPERTY OF A STEEL SHEET SURFACE
HIGH-STRENGTH COLD-ROLLED STEEL SHEET WITH SUPERIOR PHOSPHATE TREATMENT PROPERTY AND A MANUFACTURING METHOD THEREOF, CAPABLE OF IMPROVING THE PHOSPHATE TREATMENT PROPERTY OF A STEEL SHEET SURFACE
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机译：具有优质磷酸盐处理性能的高强度冷轧钢板及其制造方法，能够提高钢板表面的磷酸盐处理性能
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摘要
PURPOSE: A high-strength cold-rolled steel sheet with superior phosphate treatment property and a manufacturing method thereof are provided to induce selective oxidation due to the surface thickening of the manganese and silicon for processing phosphate in consideration of the proper ratio of silicon and manganese.;CONSTITUTION: A manufacturing method of a high-strength cold-rolled steel sheet with superior phosphate treatment property comprises following steps. A high-strength cold-rolled steel sheet is manufactured. The high-strength cold-rolled steel sheet comprises carbon(C) 0.06~1.5 wt%, silicon(Si) 0.03~1.5 wt%, manganese(Mn) 1.0~2.5 wt%, phosphorus(P) 0.08 wt% or less, and the alloy component of the remnant iron(Fe).;COPYRIGHT KIPO 2010
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