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    High-strength hot-dip galvanized steel sheet and method of manufacturing the same
    2.
    发明专利
    High-strength hot-dip galvanized steel sheet and method of manufacturing the same 有权
    高强度热镀锌钢板及其制造方法

    公开(公告)号：JP2013181225A

    公开(公告)日：2013-09-12

    申请号：JP2012046472

    申请日：2012-03-02

    申请人： Jfe Steel Corp ,  Jfeスチール株式会社

    发明人： HARAKO DAISUKE ,  SUZUKI YOSHITSUGU ,  NAGATAKI YASUNOBU

    IPC分类号： C23C2/06 ,  C21D9/46 ,  C22C38/00 ,  C22C38/14 ,  C23C2/02 ,  C23C2/28

    CPC分类号： C21D8/005 ,  B32B15/01 ,  B32B15/013 ,  C21D8/0205 ,  C21D8/0263 ,  C21D8/0278 ,  C21D9/46 ,  C21D9/561 ,  C21D2241/00 ,  C22C18/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C28/321 ,  C23C28/345 ,  C23F17/00 ,  Y10T428/12799

    摘要： PROBLEM TO BE SOLVED: To provide a high-strength hot-dip galvanized steel sheet which is superior in workability, plating adhesion in a bending part, corrosion resistance in a stretch flange processed part, and surface appearance.SOLUTION: A high-strength hot-dip galvanized steel sheet contains, by mass, ≥0.02% and ≤0.30% of C, ≥0.01% and ≤2.5% of Si, ≥0.1% and ≤3.0% of Mn, ≥0.003% and ≤0.08% of P, ≤0.01% of S, ≥0.001% and ≤0.20% of Al, and ≥0.03% and ≤0.40% of Ti, as well as Fe and inevitable impurities as a remainder, and its surface has a zinc plating layer with a plating adhesion amount of 20-120 g/mper one surface. The concentration ratio (C/Ti) of C to Ti at a region within 10 μm depth from the surface of the steel sheet immediately beneath the plating layer is ≥0.8 and ≤1.5 by atomic ratio, and an amount of one or more of oxides selected from Fe, Si, Mn, P, Al and Ti generated in the surficial region of the steel that is within 100 μm depth from the surface of the steel sheet immediately beneath the plating layer is 0.05 g/mor less per one surface in total as oxygen content.

    摘要翻译： 要解决的问题：提供一种加工性优异的弯曲部中的电镀附着力，拉伸凸缘加工部的耐腐蚀性以及表面外观优异的高强度热镀锌钢板。解决方案：高强度热 二次镀锌钢板按质量计含有：≥0.02％和≤0.30％的C，≥0.01％和≤2.5％的Si，≥0.1％和≤3.0％的Mn，≥0.003％和≤0.08％的P， ≤0.01％的S，≥0.001％和≤0.20％的Al，以及≥0.03％和≤0.40％的Ti，以及Fe和不可避免的杂质作为余量，其表面具有镀锌层 数量为20-120克/平方米。 在紧邻镀层的钢板表面10μm以下的区域，C与Ti的浓度比（C / Ti）为原子比为≥0.8，≤1.5，氧化物 选自在距离电镀层正下方的钢板表面100μm以下的钢的表面区域产生的Fe，Si，Mn，P，Al和Ti，总共为0.05g / mor 作为氧含量。

    Method for rolling and drawing processing of material made of nickel-free high nitrogen stainless steel, seamless capillary made of nickel-free high nitrogen stainless steel, and method for producing the same
    4.
    发明专利
    Method for rolling and drawing processing of material made of nickel-free high nitrogen stainless steel, seamless capillary made of nickel-free high nitrogen stainless steel, and method for producing the same 有权
    无镍高氮不锈钢材料的轧制和拉拔加工方法，无镍高氮不锈钢的无缝毛细管及其制造方法

    公开(公告)号：JP2013112874A

    公开(公告)日：2013-06-10

    申请号：JP2011261664

    申请日：2011-11-30

    申请人： National Institute For Materials Science ,  独立行政法人物質・材料研究機構

    发明人： TAGUCHI TETSUSHI ,  KATADA YASUYUKI

    IPC分类号： C21D8/10 ,  B21C1/00 ,  B21C1/22 ,  B21C1/24 ,  C22C38/00 ,  C22C38/22

    CPC分类号： C21D8/0221 ,  A61F2/94 ,  B21B23/00 ,  B21C1/00 ,  B21C1/003 ,  C21D1/26 ,  C21D6/002 ,  C21D8/0247 ,  C21D8/105 ,  C21D2241/00 ,  C22C38/00 ,  C22C38/001 ,  C22C38/22

    摘要： PROBLEM TO BE SOLVED: To provide a method for rolling and drawing processing of a material made of nickel-free high nitrogen stainless steel which does not increase a grain size of fine-grained structure even when the processing involves high crookedness in processing, a seamless capillary made of nickel-free high nitrogen stainless steel with a small grain size of the fine-grained structure, and a method for producing the same.SOLUTION: The method for rolling and drawing processing of a material made of nickel-free high nitrogen stainless steel is used, which includes: an intermediate annealing step S11 of annealing the material made of nickel-free high nitrogen stainless steel comprising fine-grained structure with a grain size of 30 μm or less at a temperature of 900-1,000°C and then air-cooling the same to room temperature; a rolling and drawing processing step S12 of elongating the material while making the same a thin plate or reducing the grain size; and a final solid solution treatment step S13 of heating the material to a temperature of 1,200-1,400°C and air-cooling the same to room temperature.

    摘要翻译： 解决问题的方法：提供一种不加大细粒结构粒径的无镍高氮不锈钢材料的轧制加工方法，即使在加工过程中加工过程中产生高弯曲性 ，由具有小颗粒尺寸的细晶粒结构的无镍高氮不锈钢制成的无缝毛细管及其制造方法。 解决方案：使用由无镍高氮不锈钢制成的材料进行轧制加工的方法，其包括：对由无镍高氮不锈钢制成的材料进行退火的中间退火步骤S11，其包括精细 颗粒尺寸为30μm或更小的颗粒结构，然后在900-1,000℃的温度下空气冷却至室温; 轧制和拉伸加工步骤S12，其使材料拉长而制成薄板或减小晶粒尺寸; 以及将材料加热至1200-1400℃的最终固溶处理步骤S13，并将其冷却至室温。 版权所有（C）2013，JPO＆INPIT