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Method for producing high strength hot rolled steel sheet containing phosphorus for hydroforming applications

机译：用于液压成形的含磷高强度热轧钢板的生产方法

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摘要

The present invention relates to a method of manufacturing a high-strength hot-rolled steel sheet which hydroforming method applied, and its object is a method of manufacturing a tensile strength of 40kg / mm ² or more, yet elongation are high-strength hot-rolled steel sheet excellent in ductility above 35% hydroforming to provide.; The present invention for achieving the above object, in weight%, C: 0.025 ~ 0.06% , Mn: 0.15 ~ 0.45%, P: 0.06 ~ 0.12%, the steel slab comprising the balance of Fe and other unavoidable impurity elements Ar ₃ ~ hot rolling with finish rolling temperature of 900 ℃, and the following conditions, * 1087 for hydroforming comprises the winding in the (C + 1.1P) + 385 ≤ coiling temperature ≤ 3261 * (C + 1.1P) + 254 P was added to it relates to a process for the preparation of high-strength hot-rolled steel sheet in the technical gist.

机译：本发明涉及一种应用液压成形法的高强度热轧钢板的制造方法，其目的是制造拉伸强度为40kg / mm ^{2 以上的方法。伸长率是高强度的热轧钢板，在延展性高于35％的液压成形时能提供。为了实现上述目的，本发明以重量％计，C：0.025〜0.06％，Mn：0.15〜0.45％，P：0.06〜0.12％，由Fe和其他不可避免的杂质元素的余量构成的钢坯Ar ＜Sub > 3 〜热轧，终轧温度为900℃，并且在以下条件下，*液压成形的1087包括（C + 1.1P）+ 385≤卷取温度≤3261 *（C + 1.1P ）+ 254 P被添加到它的技术要点中涉及一种高强度热轧钢板的制备方法。}

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公开/公告号KR100507572B1

专利类型
公开/公告日2005-08-17

原文格式PDF
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申请/专利号KR20000066376
发明设计人 박성호;
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申请日2000-11-09
分类号C21D8/00;
国家 KR
入库时间 2022-08-21 22:03:30

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