首页> 外国专利> HIGH STRENGTH HOT DIP GALVANIZED STEEL SHEET AND HIGH STRENGTH HOT DIP ALLOYED GALVANIZED STEEL SHEET HAVING EXCELLENT FORMABILITY AND HOLE EXPANDABILITY, METHOD FOR PRODUCING HIGH STRENGTH HOT DIP GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING HIGH STRENGTH HOT DIP ALLOYED GALVANIZED STEEL SHEET

HIGH STRENGTH HOT DIP GALVANIZED STEEL SHEET AND HIGH STRENGTH HOT DIP ALLOYED GALVANIZED STEEL SHEET HAVING EXCELLENT FORMABILITY AND HOLE EXPANDABILITY, METHOD FOR PRODUCING HIGH STRENGTH HOT DIP GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING HIGH STRENGTH HOT DIP ALLOYED GALVANIZED STEEL SHEET

机译：高强度热浸镀锌钢板和高强度热浸镀锌钢板具有优异的成形性和孔扩展性，高强度热浸镀锌钢板的制备方法和加工方法

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摘要

PROBLEM TO BE SOLVED: To provide a high strength hot dip galvanized steel sheet having the maximum tensile strength (TS) of ≥590 MPa and having excellent workability.;SOLUTION: The high strength hot dip galvanized steel sheet is obtained by providing the surface of a steel sheet having a composition comprising, by mass, 0.05 to 0.25% C, 1.0 to 2.0% Si, 1.1 to 1.9% Mn, ≤0.006% O, ≤0.04% P, ≤0.01% S, ≤0.05% Al and ≤0.01% N, and the balance iron with inevitable impurities and having a structure comprising, by volume fraction, ≥50% ferrite and 3 to 50% austenite, and the balance bainite or martensite with a hot dip galvanizing layer, and, Si-containing oxide in 0.01 to 10 mass% by the average content is comprised to either or both of crystal grain boundaries in the steel sheet within 5 μm from the boundaries between the steel sheet and the hot dip galvanizing layer and the inside of the crystal grains, and the inside of the hot dip galvanizing layer.;COPYRIGHT: (C)2007,JPO&INPIT

机译：要解决的问题：提供一种高强度热浸镀锌钢板，其最大抗拉强度（TS）为590 MPa以上，并且具有优异的可加工性。;解决方案：该高强度热浸镀锌钢板通过提供表面来获得具有以下组成的钢板的质量百分比：0.05- <0.25％C，1.0-2.0％Si，1.1-1.9％Mn，0.006％O，0.04％P，0.01％S，＆le含0.05％的Al和0.01％的N，余量的铁具有不可避免的杂质，其结构按体积分数计包括≥50％的铁素体和3％至<50％的奥氏体，余量的贝氏体或马氏体带有热浸镀锌层的平均含量为0.01〜10质量％的含Si氧化物构成为在钢板与热浸镀层之间的边界5μm以内的钢板的任一或两个晶界。镀锌层和晶粒的内部，以及热浸镀锌层的内部。）2007，日本特许厅

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公开/公告号JP2007211280A

专利类型
公开/公告日2007-08-23

原文格式PDF
申请/专利权人 NIPPON STEEL CORP;
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申请/专利号JP20060031132
发明设计人 AZUMA MASASHI;HONDA KAZUHIKO;YOSHINAGA NAOKI;SAKUMA KOJI;NISHIYAMA TETSUO;
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申请日2006-02-08
分类号C22C38/00;C22C38/06;C22C38/58;C22C18/04;C21D9/46;C23C2/06;
国家 JP
入库时间 2022-08-21 21:15:08

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