2Cr13钢无缝管内折叠的形成机理和消除措施

doi:10.13228/j.boyuan.issn0449-749x.20220640

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (4471 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to study the inner folding defect of 2Cr13 steel seamless tube in actual production of a steel pipe company,based on the determination mechanical properties of 2Cr13 steel at high temperature,a three-dimensional elastoplastic finite element simulation of the existing process of the typical specification 2Cr13 steel rotary tube piercing process with the help of finite element software Simufact was constructed. The critical reduction rate range of 2Cr13 steel was predicted by Oyane ductile fracture damage field simulation,and the stress/strain distribution,temperature field,force energy parameters and tendency of inner folding defects of pierced shell during the rotary piercing process were analyzed. Furthermore,the influence of different rotary piercing adjustment parameters on the inner folding and rolling block tendency was studied. The results show that the critical reduction rate range of 2Cr13 steel is between 6.0% and 6.5%,and the reduction rate range before plug is narrow which does not occur inner folding and the second bite is smoothly,so the process adjustment range is small. Increasing the friction coefficient of the roll inlet cone,is beneficial to the secondary bite of the perforation,and reduces roll wear and the occurrence of inner folding defect. In the current rotary piercing process,at about 80 mm away from the front end of the pierced shell,the three-direction normal stresses at the center point of the pierced shell are tensile stresses and reach the maximum value at the same time,and the maximum transverse,radial and axial tensile stresses are 87.30,12.39 and 53.38 MPa,respectively,and the internal tear occurs in the center of the pierced shell at above area and its vicinity,which results in the inner folding defect. The reduction rate before plug is adjusted from 6.39% of the original process to 5.75%,and the internal tear phenomenon does not occur in the center of pierced shell during the rotary piercing process,and the inner folding defect is not generated. The optimized adjustment parameters are as follows. The distance between two roll high points BCK=133.6 mm,the distance between two guide shoes LCK=145 mm,the distance of the front end of plug b=89 mm. The correctness of simulation results were verified by the inspection data from practical production.

Key words： 2Cr13 steel rotary piercing inner folding stress/strain numerical simulation

Received: 11 October 2022

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YIN Yuan-de
	ZHANG Si-yu
	WANG Chun-kai
	GUO Zhao-sheng
	LI Jun
	WANG Ting

Cite this article:

YIN Yuan-de,ZHANG Si-yu,WANG Chun-kai等. Formation mechanism and elimination measures of 2Cr13 seamless steel tube inner folding in rotary tube piercing process[J]. Iron and Steel, 2023, 58(4): 96-106.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20220640 OR http://www.chinamet.cn/Jweb_gt/EN/Y2023/V58/I4/96

[1] 周晓锋. 热轧无缝钢管内折缺陷分析[J]. 钢管,2009,38(5):48.(ZHOU Xiao-feng. Analysis of internal fold of hot-rolled seamless steel pipe[J]. Steel Pipe,2009,38(5):48.)
[2] Romanenko V P,Sizov D V. Evaluating the adequacy of a mathematical model of the piercing of a billet into an ultra-thick-walled shell on a two-high rotary rolling mill[J]. Metallurgist,2014,57(9):830.
[3] Skripalenko M M,Bazhenov V E,Romantsev B A,et al. Mannesmann piercing of ingots by plugs of different shapes[J]. Materials Science and Technology,2016,32(16):1712.
[4] Skripalenko M M,Galkin S P,Sung H J,et al. Prediction of potential fracturing during radial-shear rolling of continuously cast copper billets by means of computer simulation[J]. Metallurgist,2019,62(9):849.
[5] Bariani P F,Bruschi S,Ghiotti A. Advances in predicting damage evolution and fracture occurrence in metal forming operations[J]. Journal of Manufacturing Processes,2012,14(4):495.
[6] Pater Z,Bartnicki J,Kazanecki J. 3D finite elements method (FEM) Analysis of basic process parameters in rotary piercing mill[J]. Metallurgist,2012,51(4):501.
[7] 李洪中. 锥形辊穿孔机导板的优化设计[J]. 钢管,2017,46(1):68. (LI Hong-zhong. Optimized design of cone type piercer guide shoe[J]. Steel Pipe,2017,46(1):68.)
[8] Orlov D A,Gamin Y V,Goncharuk A V,et al. Development and investigation of piercing process using cooled guide shoes[J]. Metallurgist,2021,65(3):389.
[9] 彭春珍. 穿孔导板形状对毛管产量质量的影响[J]. 钢管,1996,25(2):35. (PENG Chun-zhen. Influence of piercer guide shoe profile on shell output and quality[J]. Steel Pipe,1996,25(2):35.)
[10] Goncharuk A V,Gamin Y V,Sharafanenko I K,et al. Piercing of a billet in a mill with guide disks[J]. Russian Metallurgy,2020,13:1637.
[11] Murillo-Marrodan A,Garcia E,Cortes F. A study of friction model performance in a skew rolling process numerical simulation[J]. International Journal of Simulation Modeling,2018,17(4):569.
[12] 张才安. 连铸坯皮下内裂在穿孔过程中的变化[J]. 重庆大学学报(自然科学版),1996,19(5):60. (ZHANG Cai-an. The changes of underskined internal crack of continuous casting billet during piercing process[J]. Journal of Chongqing University(Natural Science),1996,19(5):60.)
[13] 王潇,彭浩平,雷云,等. 34CrMo4无缝钢管内折缺陷的成因分析[J]. 金属热处理,2020,45(8):240. (WANG Xiao,PENG Hao-ping,LEI Yun,et al. Cause analysis of inner folding of 34CrMo4 seamless steel tube[J]. Heat Treatment of Metals,2020,45(8):240.)
[14] 冼爱平,张盾,王仪康. 钢中残余元素及其对钢性能的影响[J]. 钢铁,1999,34(10):64. (XIAN Ai-ping,ZHANG Dun,WANG Yi-kang. Impurities in steel and their influence on steel properties[J]. Iron and Steel,1999,34(10):64.)
[15] 宫志民,梁建山,田青超. 无缝钢管典型内折叠缺陷分析[J]. 轧钢,2014,31(6):31. (GONG Zhi-min,LIANG Jian-shan,TIAN Qing-chao. Causes analysis of typical interior folding defect of seamless steel tube[J]. Steel Rolling,2014,31(6):31.)
[16] Komori K,Suzuki M. Simulation of deformation and temperature in press roll piercing[J]. Journal of Materials Processing Technology,2005,169(2):249.
[17] 尹元德,李胜祗,康永林,等. 二辊斜轧延伸大口径P92厚壁管分层缺陷倾向性研究[J]. 钢铁,2012,47(10):52. (YIN Yuan-de,LI Sheng-zhi,KANG Yong-lin,et al. Tendency of lamination defect of thick-walled P92 pipe with large diameter elongated by 2-roll rotary rolling process[J]. Iron and Steel,2012,47(10):52.)
[18] Pater Z,Kazanecki J,Bartnicki J. Three dimensional thermo-mechanical simulation of the tube forming process in Diescher's mill[J]. Journal of Materials Processing Technology,2006,177(1-3):167.
[19] Komori K,Mizuno K. Study on plastic deformation in cone-type rotary piercing process using model piercing mill for modeling clay[J]. Journal of Materials Processing Technology,2009,209(11):4994.
[20] ZHANG Z,LIU D,YANG Y H,et al. Explorative study of rotary tube piercing process for producing titanium alloy thick-walled tubes with bi-modal microstructure[J]. Archives of Civil and Mechanical Engineering,2018,18(4):1451.
[21] 李连诗. 钢管塑性变形原理(上册)[M]. 北京:冶金工业出版社,1985.(LI Lian-shi. Principle of Plastic Deformation of Steel Tubes (Volume 1)[M]. Beijing:Metallurgical Industry Press,1985.)
[22] Mori K,Yoshimura H,Osakada K. Simplified three-dimensional simulation of rotary piercing of seamless pipe by rigid-plastic finite-element method[J]. Journal of Materials Processing Technology,1998,80/81:700.
[23] 王廷溥,齐克敏. 金属塑性加工学——轧制理论与工艺[M]. 北京:冶金工业出版社,2016. (WANG Ting-pu,QI Ke-min. Metal Plastic Working—Rolling Theory and Technology[M]. Beijing:Metallurgical Industry Press,2016.)