“分段冷却”工艺对C-Mn钢中板带状组织的影响  

Effect of "Subsection Cooling"Process on Banded Structure of C-Mn Medium Plate

作　　者：方琪[1] 孙伟[2] 王丙兴[1] 赵德文[1] 吴迪[1] 王国栋[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004 [2]沈阳航空工业学院宇航学院,辽宁沈阳110034

出　　处：《轧钢》2008年第1期13-15,20,共4页Steel Rolling

基　　金：国家自然科学基金资助项目(50474015和50334010)

摘　　要：通过工业试验,研究了分段冷却工艺对C-Mn钢中板带状组织的影响,分析了带状组织的产生机理。研究结果表明:在相同的控制轧制工艺下,与空冷工艺相比,采用后段冷却为主的冷却工艺可使试验钢的带状组织由4级降至3级;采用前段冷却为主的冷却工艺可使试验钢的带状组织降至1.5级;随着前段冷却强度的增加,板材的带状组织减弱。Effect of subsection cooling process on banded structure of C-Mn plate has been studied by industrial tests. Mechanism of banded structure are analysed. The results show that in the same controlled rolling condition,the banded structure decreases to 3 grade by adopting aft-stage cooling dominated process comparing with that by adopting air cooling. Further more, the banded structure decreases to 1.5 grade by adopting fore-stage cooling dominated process. With the enhancement of fore-stage cooling, the banded structure further decreases

关 键 词：中板生产 冷却工艺 分段冷却 带状组织 

分 类 号：TG335.52[金属学及工艺—金属压力加工]