ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2010, Vol. 31 ›› Issue (6): 42-43.

• 工艺技术 • 上一篇    下一篇

B级钢Φ180mm连铸坯中心缩孔对Accu-Roll轧制的168mm×7mm钢管质量的影响

王海兵,胡茂会   

  1. 攀钢集团成都钢钥有限公司,成都610303
  • 收稿日期:2010-06-02 出版日期:2010-12-01 发布日期:2022-10-28
  • 作者简介:王海兵(1965-),男,高级工程师,1987年重庆大学毕业,炼钢、连铸工艺技术研究。

Effect of Center Line Shrinkage of 0180 mm Casting Bloom of Steel Grade B on Quality of 168 mm x 7 mm Tube Rolled by Accu-Roll

Wang Haibing , Hu Maohui   

  1. Chengdu Steel and Vanadium Co Ltd, Pansteel Group, Chengdu 610303
  • Received:2010-06-02 Published:2010-12-01 Online:2022-10-28

摘要: 对192.39 t中心缩孔≤2级的B级钢(0.20%C)Φ180 mm铸坯进行了用Accu-Roll轧管机轧成693根168 mm×7 mm钢管的工业性试验。结果表明,钢管成材率为90%,内表面没有折叠、离层、裂纹等缺陷,15 MPa5 s水压试验后没有出现漏水,每根钢管通过GB/F5777-1996标准人工缺陷深度等级C12.5超声波探伤检验合格。

关键词: 圆铸坯, 中心缩孔, Aceu-Roll轧管机, 钢管, 表面质量

Abstract: The commercial pilot production for 693 pieces of 168 mm x 7 mm tube rolled by Accu-Roll mill from 192. 39 t Φ180 mm round casting bloom of steel B grade (0. 20% C) with center line shrinkage rating W2 has been carried out. Results show that the yield of rolled tube is 90% ; there are not defects in internal surface of tube such as internal overlap, abscess layer and cracks; the tube isn't leaking water by water pressure test with 15 MPa for 5 s and each tube is passed and qualified by ultrasonic examination according to standard GB/T5777-1996 with artificial defect depth rating C12. 5.

Key words: Round Casting Bloom, Center Line Shrinkage, Accu-Roll Tube Mill, Tube, Surface Quality