东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2004, Vol. 25 ›› Issue (7): 678-681.DOI: -

• 论著 • 上一篇    下一篇

电磁离心耐热管坯的实验研究

邱以清;贾光霖;滕志远;刘相华   

  1. 东北大学轧制技术及连轧自动化国家重点实验室;东北大学材料与冶金学院;鞍山钢铁集团机械制造公司;东北大学轧制技术及连轧自动化国家重点实验室 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2004-07-15 发布日期:2013-06-24
  • 通讯作者: Qiu, Y.-Q.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(59995440)·

Experimental study on heat-resistant tube blank by electromagnetic centrifugal casting

Qiu, Yi-Qing (1); Jia, Guang-Lin (2); Teng, Zhi-Yuan (3); Liu, Xiang-Hua (1)   

  1. (1) Lab. of Rolling Technol., Northeastern Univ., Shenyang 110004, China; (2) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China; (3) Machinery Mfg. Co., Anshan Iron Steel Group Co., Anshan 114021, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2004-07-15 Published:2013-06-24
  • Contact: Qiu, Y.-Q.
  • About author:-
  • Supported by:
    -

RichHTML

0

PDF (PC)

480

摘要： 研究了电磁离心复合力场作用下获得的1Cr25Ni20Si2耐热管坯的凝固组织与力学性能·实验结果表明,在离心铸造过程中施加合适强度的稳恒磁场,1Cr25Ni20Si2耐热管坯的凝固组织得到明显改善,结果其冲击韧性和延伸率也相应地提高·但当磁感应强度B>0 04T后,再进一步加大磁感应强度,1Cr25Ni20Si2耐热管坯的力学性能又出现下降的趋势·通过分析得出,稳恒磁场与旋转熔体相互作用,产生电磁搅拌是耐热管凝固组织和力学性能改善的根本原因·

关键词: 离心铸造, 磁场, 1Cr25Ni20Si2, 凝固组织, 力学性能

Abstract: The solidification structure and mechanical properties of 1Cr25Ni20Si2 tube blank were investigated, which was acquired through the joint fields of electromagnetic and centrifugal force. The results show that if a steady magnetic field of appropriate magnetic induction is applied in centrifugal casting process, the solidification structure of the blank can be improved markedly with its impact toughness and elongation improved correspondingly. But the mechanical properties of the blank will drop if increasing the magnetic induction further after it reaches >0.04 T. By analysis, it was concluded that electromagnetic stirring, induced due to interaction between steady magnetic field and rotating metal melt, is radical reason that solidification structure and mechanical properties of heat-resistant tube blank are improved.

中图分类号: