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Method of Manufacturing Ti-Containing Austenitic Stainless Steel Sheet by Twin Roll Strip Caster

机译:双辊薄带连铸机制造含钛奥氏体不锈钢板的方法

摘要

There is provided a method of manufacturing a titanium (Ti)-containing austenitic stainless steel sheet having a high degree of surface quality by using a twin roll strip caster. The method includes controlling a composition of molten steel such that a TiN precipitation temperature may be higher than a temperature of the molten steel in a tundish (T/D) by at least 50° C. (ΔT≧50° C.), the TiN precipitation temperature being defined by the following formula 2:; Log(N%)=−19,755/(T+273)+7.78+0.07[% Ti]−log [% Ti]+; 0.045[% Cr]; T(° C.)=−19,755/log(N%)−7.78−0.07(%Ti)+log(%ti)−0.045(%Cr)−273  [Formula 2]
机译:提供了一种使用双辊薄带连铸机制造表面质量高的含钛(Ti)的奥氏体系不锈钢板的方法。该方法包括控制钢水的成分,使得TiN沉淀温度可以比中间包(T / D)中的钢水温度高至少50℃(ΔT≥50℃), TiN的析出温度由下式2定义: <?in-line-formulae description =“在线公式” end =“ lead”?> Log(N%)= − 19,755 /(T + 273)+ 7.78 + 0.07 [%Ti] -log [%Ti] + <?in-line-formulae description =“在线公式” end =“ tail”?>; <?in-line-formulae description =“在线表达式” end =“ lead”?> 0.045 [%Cr] <?in-line-formulae description =“在线表达式” end =“ tail”?>; <?in-line-formulae description =“在线公式” end =“ lead”?> T(°C)= − 19,755 / log(N%)− 7.78−0.07(%Ti)+ log(%ti )−0.045(%Cr)−273 [式2] <?in-line-formulae description =“ In-line Formulae” end =“ tail”?>

著录项

  • 公开/公告号US2015174647A1

    专利类型

  • 公开/公告日2015-06-25

    原文格式PDF

  • 申请/专利权人 POSCO;

    申请/专利号US201414570260

  • 申请日2014-12-15

  • 分类号B22D11/00;B22D11/06;

  • 国家 US

  • 入库时间 2022-08-21 15:25:45

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