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PRODUCTION OF HIGH TOUGHNESS AND HIGH STRENGTH STEEL PLATE HAVING =980N/MM2 CLASS TENSILE STRENGTH AND LOW IN RESIDUAL STRESS

机译：≥980N/ MM2级拉伸强度且残余应力低的高韧性高强度钢板的生产

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摘要

PURPOSE: To prevent the generation of a failure in the flattening degree after cutting of a steel sheet, the generation of cambers and the generation of a failure in the shape or the like at the time of working. ;CONSTITUTION: As for a steel sheet contg. 0.05 to 0.20% C, 0.05 to 0.50% Si, 0.30 to 1.50% Mn, ≤0.015% P, ≤0.005% S, 0.01 to 2.00% Ni, 0.01 to 1.20% Cr, 0.01 to 0.60% Mo, 0.01 to 0.10% V and 0.005 to 0.10% Al, and the balance Fe with inevitable impurities, the flattening degree of ≤2/1000mm is secured before hardening. Successively, it is heated to the temp. range of the Ac₃ transformation point to (the Ac₃ transformation point +50°C), is thereafter hardened and is tempered at the Ac₁ transformation point or below. If required, one or ≥two kinds selected from 0.01 to 0.50% Cu, 0.001 to 0.01% Ca, 0.0003 to 0.003% B, 0.005 to 0.025% Ti, 0.005 to 0.10% Nb and 0.005 to 0.050% rare earth metals may be incorporated therein.;COPYRIGHT: (C)1995,JPO

机译：目的：为了防止在切割钢板后产生平直度的故障，在加工时产生弧度和形状等的故障。 ;构成：至于钢板续。 0.05至0.20％C，0.05至0.50％Si，0.30至1.50％Mn，≤0.015％P，≤0.005％S，0.01至2.00％Ni，0.01至1.20％Cr，0.01至0.60％Mo，0.01至0.10％ V，0.005〜0.10％的Al，余量的Fe以及不可避免的杂质，在硬化前确保平坦度≤2/ 1000mm。依次将其加热到该温度。 Ac _{3 转变点到（Ac _{3 转变点+ 50°C）的范围，然后硬化并在Ac _{1 转换点或以下。如果需要，可以掺入选自0.01至0.50％Cu，0.001至0.01％Ca，0.0003至0.003％B，0.005至0.025％Ti，0.005至0.10％Nb和0.005至0.050％稀土金属中的一种或两种以上。版权：（C）1995，日本特许厅}}}

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公开/公告号JPH07126739A

专利类型
公开/公告日1995-05-16

原文格式PDF
申请/专利权人 KOBE STEEL LTD;
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申请/专利号JP19930279681
发明设计人 IWAI KIYOSHI;OKANO SHIGEO;TAKESHITA SATOSHI;
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申请日1993-11-09
分类号C21D6/00;C21D8/02;C22C38/00;C22C38/46;C22C38/54;
国家 JP
入库时间 2022-08-22 04:24:53

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