10.3969/j.issn.1003-8620.2017.02.005
30 t EAF-LF-VD-13 t铸锭流程生产14Cr1Mo钢的工艺实践
试验14Cr1Mo钢(/%:0.12C,0.57Si,0.48Mn,0.003P,0.001S,1.20Cr,0.42Mo,0.01V,0.001Nb,0.017Al,0.003As,0.001Sb,0.002Sn)64 mm× 160 mm锻坯的冶金工艺流程为30 t EBT EAF-LF-VD-13 t铸锭-锻造.通过采用优质废钢,控制EAF终点[P]≤0.002%,终点[C]0.07%~0.10%,出钢加Al预脱氧,LF白渣时间≥30min,VD 67 Pa≥25 min,VD后喂0.35 kg/t Ca-Si线等工艺措施,钢中[H]为1.5×10-6,[O] 17×10-6,[N]70 ×10-6,各类非金属夹杂物为0.5级.经930℃空冷预备热处理,910℃水冷+700℃空冷回火,690℃4~20 h炉冷模拟焊后消除应力处理后的该钢力学性能满足参考标准NB/T47008-2010的要求.
14Cr1 Mo钢、30t EAF-LF-VD、工艺实践、夹杂物、力学性能
38
TH1;TF1
甘肃省科技计划资助项目2015GS05896
2017-04-10(万方平台首次上网日期,不代表论文的发表时间)
共4页
19-22