轧后冷却工艺对模拟CSP含铜Hi-B钢热轧组织和结构的影响  

Effect of Cooling Process after Rolling on Structure and Texture of Simulated CSP Hot-Rolled Hi-B Steel Bearing Copper

作　　者：余冲 肖欢[2] 

机构地区：[1]武汉工程大学邮电与信息工程学院,武汉430073 [2]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉430081

出　　处：《特殊钢》2018年第2期56-59,共4页Special Steel

基　　金：2012年国家自然科学基金项目资助(51274155)

摘　　要：以模拟CSP工艺-真空感应炉熔炼含铜Hi-B钢(/%:0.06C,3.38Si,0.14Mn,0.013P,0.003S,0.019Als,0.37Cu,0.001 50,0.008 7N)模铸成210 mm×120 mm×60 mm板,Φ350 mm二辊热轧机1 065℃开轧经5道次从60 mm轧成3.5 mm板(终轧865℃)为试验基板,研究了轧后水冷和轧后水冷至580℃再空冷两种冷却工艺对实验钢组织和织构的影响。结果表明,热轧后水冷到580℃再空冷到室温的冷却方式有助于获得更高取向精准度的高斯织构、更低比例的黄铜织构以及其他合理的织构组成,较轧后水冷工艺更加适合实验钢。The simulated CSP process of tested plate of Hi-B steel bearing copper （/% ： 0. 06C, 3.38Si, 0. 14Mn, 0. 013P, 0. 003S, 0. 019Als, 0. 37Cu, 0.001 50, 0. 008 7N） is melting by vacuum induction furnace and mold casting to 210 mm×120 mm×60 mm plate, rolling at 1 065 ℃ from 60 mm to 3.5 mm plate with finishing rolling at 865 ℃ by 0350 mm two-high hot rolling mill and 5 passes. The effect of both processes- water cooling after rolling and water cooling to 580 ℃, air cooling after rolling on structure and texture of tested steel has been studied. Results show that the cooling process of water cooling to 580 ℃, air cooling to room temperature after hot-rolling is available to get Goss texture with higher orientation accuracy and lower content of Brass texture, and other reasonable texture component, as compared with water cooling process after rolling it is more suitable for tested steel.

关 键 词：含铜Hi—B钢 热轧 冷却工艺 组织 织构 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG335[金属学及工艺—金属材料]