冷却工艺对HP295焊瓶钢板屈强比的影响  

Effect of Cooling Process on Yield Ratio of HP295 Steel Plate for Welded Gas Cylinder

作　　者：朱伏先[1] 佘广夫[2] 张中平[2] 李鑫[1] 刘相华[1] 

机构地区：[1]轧制技术及连轧自动化国家重点实验室(东北大学),辽宁沈阳110004 [2]攀枝花钢铁(集团)公司热轧厂,四川攀枝花617067

出　　处：《钢铁》2005年第8期38-42,共5页Iron and Steel

基　　金：国家高技术研究发展计划资助项目(2001AA332020-01)

摘　　要：为探讨工业生产条件下降低铁素体/珠光体钢屈强比的有效办法,研究了前段冷却、后段冷却和两段式冷却3种工艺对HP295焊瓶钢板屈强比的影响规律,通过采用两段冷却方式并控制带钢卷取温度使攀钢HP295焊瓶钢板的屈强比低于0.8,屈强比合格率由此前的不足90%提高到100%,各项力学性能满足国家标准GB6653-1994要求。The effect of cooling process including fore-stage cooling, aft-stage cooling and two-stage cooling on yield ratio of HP295 steel plate for welded gas cylinder was studied. The yield ratio of HP295 plate was reduced to lower than 0.8 by using two-stage cooling process and controlling the coiling temperature. The percentage of qualified plates in terms of yield ratio was enhanced from lower than 90% to 100%. The mechanical properties of plate were up to GB6653-1994.

关 键 词：HP295焊瓶钢 屈强比 两段式冷却 卷取温度 

分 类 号：TG335[金属学及工艺—金属压力加工]