ISSN:1003-8620
CN:42-1243/TF
Governed by: CITIC Pacific Special Steel Group Co., LTD
Sponsored by: Daye Special Steel Co., LTD.
Special Steel ›› 2007, Vol. 28 ›› Issue (3): 25-27.
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Xu Yuanjun1,Zhao Gang1,Wen DunWei2,Gangcheng2
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徐远军1,赵刚1,温盾2,魏钢城2
作者简介:
Abstract: The continuous cooling transformation(CCT)curves of low carbon steel Q235(0. 15C,0.005B)with 1050℃30% deformation, holding 10,40,90s and cooling to 1000℃30% deformation then cooling with 5℃/s to 880℃ and cooling with1,5,15 and 25℃/s have been measured using dilatometry by Thermecmastor-Z thermal simulation machine. With prolonging holding time at intermediate roll table, the CCT phase transformation beginning and finishing curves moved down to right and grain size of steel at ambient gradually enlarged.
Key words: Steel Q235,Hot Continuous Rolling,Intermediate Roll Table,Holding,CCT Curves,Structure
摘要: 利用膨胀法在Thermecmastor-Z热模拟实验机上测定了低碳钢Q235(%:0.15C、0.005B)1 050℃30%变形后经10,40,90 s保温冷却至1 000℃30%变形,5℃/s冷却至880℃,然后以1,5,15,25℃/s速度冷却的连续冷却转变(CCT)曲线。随中间辊道保温时间的延长,连续冷却相变开始和结束曲线均向右下方移动,并且钢的室温晶粒逐渐变大。
关键词: Q235钢, 热连轧, 中间辊道, 保温, CCT曲线, 组织
Xu Yuanjun, Zhao Gang, Wen DunWei, Gangcheng. Effect of Holding Technology at Intermediate Roll Table in Hot Continuous Rolling on Phase Transformation and Structure of Low Carbon Steel[J]. Special Steel, 2007, 28(3): 25-27.
徐远军, 赵刚, 温盾, 魏钢城. 热连轧中间辊道保温工艺对低碳钢相变和组织的影响[J]. 特殊钢, 2007, 28(3): 25-27.
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https://www.specialsteeljournal.com/EN/Y2007/V28/I3/25