期刊文献+

小压下率冷轧过程中低碳钢氧化铁皮断裂行为研究 被引量:1

Study on fracture behavior of oxide scale of low carbon steel during small reduction cold rolling
原文传递
导出
摘要 针对免酸洗新工艺中采用小压下率冷轧或平整工艺,试验研究了不同压下率冷轧前后SPHC带钢操作侧(OS侧),中间部位,驱动侧(DS侧)3个位置表面和截面的氧化铁皮形貌和厚度,以及氧化铁皮在冷轧过程中的断裂行为。结果表明,试验钢热轧后冷却过程中的热应力使其表面氧化铁皮产生裂纹,且卷取后的冷却速率会对表面氧化铁皮结构产生较大影响;采用10%冷轧压下率时,带钢表面出现较多氧化铁皮块状脱落和粉化脱落现象,表面质量破环严重;采用5%冷轧压下率时,带钢表面仅出现少量氧化铁皮块状脱落,大部分氧化铁皮达到只开裂不剥落状态;氧化铁皮在常温下塑性较差,在冷轧后氧化铁皮厚度未发生随钢基体明显变薄的协同变形。 Aiming at the cold rolling or temper rolling with a small reduction in the new pickling-free process,the morphology and thickness of the scale on the surface and cross section of the operating side(OS side),middle part,and driving side(DS side)of SPHC strip before and after cold rolling with different reduction rates were tested studied as well as the fracture behavior of the scale during cold rolling.The results show that the thermal stress in the cooling process after hot rolling of the test steel caused cracks of the scale on the strip surface,and the cooling rate after coiling will have a large effect on the structure of the scale on the strip surface.When using a 10%cold rolling reduction,there are more lumps of scale and pulverization,and the surface quality is severely broken.When using a 5%cold rolling reduction,only a small amount of scale on the surface of the strip is shed,and most of the scale is only cracks and does not peel off.the scale is poor in plasticity at room temperature,it does not undergo a coordinated deformation with the steel substrate becoming significantly thinner after cold rolling.
作者 郝明欣 孙彬 王建明 尤宏广 HAO Ming-xin;SUN Bin;WANG Jian-ming;YOU Hong-guang(Mechanical Engineering Institute,Shenyang University,Shenyang 110044,China;Hansteel Company,HBIS Group,Handan 056000,China)
出处 《轧钢》 2020年第3期31-35,共5页 Steel Rolling
基金 国家自然科学基金青年基金资助项目(51301111) 辽宁省自然科学基金资助项目(201602523) 东北大学轧制技术及连轧自动化国家重点实验室开放课题基金资助项目(2017RALKFKT007)。
关键词 低碳钢 氧化铁皮 裂纹 协调变形 脱落 low carbon steel scale crack coordinated deformation shedding
  • 相关文献

参考文献8

二级参考文献53

  • 1李玉华,陈少慧,朱希圣,戚正儒.80钢盘条氧化皮形貌及其厚度的计算[J].物理测试,2006,24(5):42-43. 被引量:8
  • 2王银军,穆海玲,董汉君,李欣波,张国河,沈鹏杰,杜献智.SPHC热带氧化铁皮酸洗困难原因分析及对策[J].轧钢,2006,23(4):51-54. 被引量:45
  • 3张孟仪,邵光杰.热轧板的氧化皮结构对酸洗效果的影响[J].上海金属,2007,29(3):41-44. 被引量:25
  • 4吴祝民.热轧带钢氧化铁皮的成因及对策[J].轧钢,2007,24(3):56-58. 被引量:78
  • 5Birks N, Meier G H. Introduction to high-temperature oxidation of metals[J]. Edward Arnold, 1983, 1983:198.
  • 6Torres M, Colas R. A model for heat conduction through the oxide layer of steel during hot rolling[J].Journal of Materials Processing Technology, 2000, 105 (3) :258 - 263.
  • 7Matsuno F. Blistering and hydraulic removability of scale films of rimmed steel at high temperature[ J]. Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 1979, 65(6) : 599 - 607.
  • 8Samways N L. Hydrogen descaling of hot band : a competitor to acid pickling[ J ]. Iron & Steel Maker, 2001 ( 11 ) : 23 - 26.
  • 9Chen R Y, Yuen W Y D. Examination of oxide scales of hot rolled steel products[ J].ISIJ International, 2005, 45(1 ): 52- 59.
  • 10Chen R Y, Yuen W Y D. Oxide-scale structures formed on commercial hot-rolled steel strip and their formation mechanisms[J]. Oxidation of Metals, 2001, 56(1-2): 89-118.

共引文献66

同被引文献3

引证文献1

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部