Li Hongguang, Chen Tianming, Chen Liang, Guo Dianrong. Analyze and Control for Peeling Defects on the Internal Surface of JS25Mn Steel Tube[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(5): 153-156. doi: 10.7513/j.issn.1004-7638.2016.05.026
Citation:
Li Hongguang, Chen Tianming, Chen Liang, Guo Dianrong. Analyze and Control for Peeling Defects on the Internal Surface of JS25Mn Steel Tube[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(5): 153-156. doi: 10.7513/j.issn.1004-7638.2016.05.026
Li Hongguang, Chen Tianming, Chen Liang, Guo Dianrong. Analyze and Control for Peeling Defects on the Internal Surface of JS25Mn Steel Tube[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(5): 153-156. doi: 10.7513/j.issn.1004-7638.2016.05.026
Citation:
Li Hongguang, Chen Tianming, Chen Liang, Guo Dianrong. Analyze and Control for Peeling Defects on the Internal Surface of JS25Mn Steel Tube[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(5): 153-156. doi: 10.7513/j.issn.1004-7638.2016.05.026
1. Panggang Group Research Institute Co., Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China;
2. Vanadium Recovery & Steelmaking Plant, Panzhihua Vanadium and Steel Co., Ltd., Panzhihua 617062, Sichuan, China
Peeling defect on internal surface of JS25Mn steel tube have been analyzed in this paper.Highmelting non-metallic inclusions containing titanium have been found in steel,and low-melting non-metallic inclusion segregated in the center porosity defective area of billets',which are the major factors that lead to peeling defects.The purity degree have been improved after RH vacuum-treatment for melting steel,and after optimizing and modifying casting process,the internal quality of billets have been improved,and the peeling defects issue have been resolved effectively.
DownLoad: