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 ›› 2005, Vol. 26 ›› Issue (5): 14-15.

• 试验研究 • 上一篇    下一篇

形变对无取向硅钢50W470组织和力学性能的影响

孙述利1,郭东城1,刘 江2,宋文军2,杨宗翰2,罗玉田2   

  1. 1. 太原科技大学材料学院,太原 030024;
    2. 太原钢铁有限公司,太原 030003;
  • 收稿日期:2005-03-07 出版日期:2005-10-01 发布日期:2023-03-30
  • 作者简介:孙述利(1975-),女,讲师,2000年太原重型机械学院毕业。从事软磁材料研究。
  • 基金资助:
    太原科技大学青年基金项目资助

Effect of Deformation on Structure and Mechanical Properties of Non-Orientation Silicon Steel 50W470

Sun Shuli1 , Guo Dongcheng1 , Liu Jiang2 , Song Wenjun2 , Yang Zonghan2 , Luo Yutian2   

  1. 1. Taiyuan Science and Technology University,Taiyuan 030024;
    2. Taiyuan Iron and Steel Co Lid,Taiyuan 030003;
  • Received:2005-03-07 Published:2005-10-01 Online:2023-03-30

摘要: 2.0~2.8mm的50W470无取向硅钢(%:≤0.005C,1.45~1.65Si,0.2~0.4Al)经20辊森吉米尔可逆式轧机5道次轧制成0.5mm的轧卷,各道次压下率15%~35%,总压下率为75%~80%。试验结果表明,经5道次轧制后钢中晶粒全部细纤维化,抗拉强度由坯料的480~560MPa增加至885~905MPa,伸长率δ5由25%~28%降至0.7%~0.8%。经X射线衍射谱线型分析表明,经5道次轧制后的无取向硅钢50W470中存在残余内应力(第2类内应力)是形成冲片椭圆度的重要原因。

关键词: 无取向硅钢50W470, 形变, 组织, 力学性能

Abstract: The 0.5 mm non-orientation silicon steel 50W470 (≤0.005C,1.45~1.65Si,0.2~0.4Al)coil was rolled by twenty- high Sendzimir mill from 2.0~2.8 mm plate with pass reduction 15%~35% and total reduction 75%~80%.The test results showed that with 5 pass rolling the grains in steel were all fibration,the tensile strength increased to 885~905 MPa from 480~560 MPa rolling billet, clongation s decreased to 0.79%~0.8% from 25%~28%.And the X-ray diffraction spectrum analysis showed that with 5 pass rolling the residual stress(secondary stress)existed in non-orientation silicon steel 50W470 which was main cause to form elliptical type stamping.

Key words: Non-Orientation Silicon Steel 50W470, Deformation, Structure, Mechanical Properties