首页> 外国专利> PRODUCTION OF HOT ROLLED STARTING PLATE FOR CONTINUOUSLY ANNEALED COLD ROLLED STEEL SHEET OR CONTINUOUSLY HOT-DIP GALVANIZED COLD ROLLED STEEL SHEET EXCELLENT IN WORKABILITY

PRODUCTION OF HOT ROLLED STARTING PLATE FOR CONTINUOUSLY ANNEALED COLD ROLLED STEEL SHEET OR CONTINUOUSLY HOT-DIP GALVANIZED COLD ROLLED STEEL SHEET EXCELLENT IN WORKABILITY

机译：连续退火冷轧钢板或连续热浸镀锌冷轧钢板的热轧起始板的可加工性极佳

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摘要

PURPOSE: To produce a hot rolled starting plate for continuously annealed cold rolled steel sheet or continuously hot-dip galvanized cold rolled steel sheet used for automobile parts, etc., and excellent in workability in high yield. ;CONSTITUTION: A steel having a composition containing 0.01-0.020% C, 0.05-0.15% Mn, ≤0.015% P, 0.004-0.015% S, 0.05-0.15% Al, and ≤0.0025% N is hot-rolled at a temp. not lower than the transformation point. Coiling is done so that the occurrence of coil slackening is prevented at the time of coiling at 630-700°C, and the cooling velocity at the edge of the coil is regulated to ≤7°C/min from ≥550°C downward. Further, directly after the starting of coiling, the inside peripheral part can be tightened by extending a mandrel. By this method, the deterioration allowance of the average r-value at the coil edge after cold rolling and annealing can be regulated and production in high yield is made possible.;COPYRIGHT: (C)1993,JPO&Japio

机译：用途：生产用于汽车零件等的连续退火冷轧钢板或连续热浸镀锌冷轧钢板的热轧起始板，且加工性高，产量高。组成：一种钢，其温度为0.01-0.020％C，0.05-0.15％Mn，≤0.015％P，0.004-0.015％S，0.05-0.15％Al和N≤0.0025％N的成分。不低于转换点。进行卷取，以防止在630-700°C进行卷取时出现线圈松弛，并且将卷边的冷却速度从≥550°C向下调节至≤7°C / min。另外，在卷取刚开始后，就可以通过使芯轴伸长来紧固内周部。通过这种方法，可以调节冷轧和退火后卷材边缘的平均r值的变差余量，从而可以高产量生产。;版权所有：（C）1993，日本特许厅＆日本apio

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公开/公告号JPH0559442A

专利类型
公开/公告日1993-03-09

原文格式PDF
申请/专利权人 NIPPON STEEL CORP;
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申请/专利号JP19910244259
发明设计人 UEDA TOSHIZUMI;MATSUZU NOBUHIKO;KOYAMA KAZUO;
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申请日1991-08-30
分类号C21D9/46;C21D8/04;C22C38/00;C22C38/06;
国家 JP
入库时间 2022-08-22 05:12:53

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