MANUFACTURE OF HIGH-TENSION COLD-ROLLED STEEL SHEET FOR EXTREMELY DEEP DRAWING WITH HIGH RESISTANCE TO CRACKING DUE TO SECONDARY WORKING,申请号JP19840033303-传众专利搜索

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发明名称	MANUFACTURE OF HIGH-TENSION COLD-ROLLED STEEL SHEET FOR EXTREMELY DEEP DRAWING WITH HIGH RESISTANCE TO CRACKING DUE TO SECONDARY WORKING
摘要	PURPOSE:To obtain the titled steel sheet when a steel sheet of an Nb added dead soft having a specified composition for extremely deep drawing is manufactured by a continuous annealing method, by adding a very small amount of Mo, Zr, As, Ge or Se and regulating annealing conditions. CONSTITUTION:A steel slab contg., by weight, <=0.0050% C, <=1.0% Si, <=1.0% Mn, 0.03-0.15% P, 0.02-0.1% Al, <=0.0070% N, Nb satisfying the equation and 0.005-0.025% in total of one or more among Mo, Zr, As, Ge and Se is prepd. The slab is hot rolled, pickled, and cold rolled as usual to form a cold rolled steel sheet. This steel sheet is continuously annealed by soaking at 750-the A3 point and cooling at >=1 deg.C/sec cooling rate from the soaking temp. to <=550 deg.C.
申请公布号	JPS60177136(A)	申请公布日期	1985.09.11
申请号	JP19840033303	申请日期	1984.02.23
申请人	KAWASAKI SEITETSU KK	发明人	SAKATA TAKASHI;HASHIMOTO OSAMU
分类号	C21D9/48;C22C38/00	主分类号	C21D9/48
代理机构		代理人
主权项
地址

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