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 ›› 2023, Vol. 44 ›› Issue (3): 114-118.DOI: 10.20057/j.1003-8620.2022-00225

• 成型与相变 • 上一篇    

含Cr合金钢线材氧化铁皮分析与工艺优化

王宁涛1,2, 陈继林1,3, 王利军1,2, 张鹏1,2   

  1. 1 河北省线材工程技术创新中心,邢台 054027;
    2 邢台钢铁有限责任公司技术中心,邢台 054027;
    3 邢台钢铁有限责任公司线材厂,邢台 054027
  • 收稿日期:2023-01-30 出版日期:2023-06-01 发布日期:2023-05-17
  • 作者简介:王宁涛(1987-),男,硕士,高级工程师

Analysis and Process Optimization of Oxide Scale of Alloy Steel Wire Rod Containing Cr

Wang Ningtao1,2, Chen Jilin1,3, Wang Lijun1,2, Zhang Peng1,2   

  1. 1 Hebei Engineering Innovation Center For Wire Rod , Xingtai  054027;
    2 Technical Center of Xingtai Iron &Steel Co.,Ltd.,  Xingtai 054027;
    3 Wire Rod Plant of Xingtai Iron &Steel Co.,Ltd.,  Xingtai 054027
  • Received:2023-01-30 Published:2023-06-01 Online:2023-05-17

摘要: 研究了低碳钢、低合金钢、以及含Cr的合金钢不同温度时的氧化情况,测量铁皮厚度并对铁皮进行物相分析,发现含Cr的合金钢线材在850 ℃氧化时,容易生成Fe3O4,且缓冷时铁皮又以Fe2O3为主。正常轧制时,含Cr的合金钢线材在850 ℃吐丝以及缓慢冷却时容易生成以Fe3O4为主要成分的铁皮,对后续的酸洗除鳞不利。提高吐丝温度到900 ℃以上,并且吐丝后开启保温罩,可以提高FeO的含量,从而改善氧化铁皮的除鳞性能。

关键词: 氧化铁皮, Cr, EBSD, 合金钢

Abstract: The oxidation scale of low carbon steel, low alloy steel and alloy steel containing Cr at different temperatures, the thickness of scale and phase analysis of scale are studied, the results show that the alloy steel wire containing Cr is easy to produce Fe3O4 when oxidized at 850 ℃, and Fe2O3 is the main oxidation scale during slow cooling. It is easy to produce the oxidation scale structure with Fe3O4 as the main component when the alloy steel wire containing Cr is spun at about 850 ℃ during normal rolling and slowly cooling, which is disadvantageous to the subsequent pickling and descaling. The FeO content can be increased to improve the descaling performance of iron oxide scale by increasing the spinning temperature above 900 ℃ and opening the insulation cover after spinning.

Key words: Oxide Scale, Cr, EBSD, Alloy Steel