金属热处理 ›› 2023, Vol. 48 ›› Issue (1): 266-269.DOI: 10.13251/j.issn.0254-6051.2023.01.047

• 失效分析 • 上一篇    下一篇

薄规格耐磨钢淬火条纹分析与工艺改进

黄朋, 镇凡, 杜平, 曲锦波   

  1. 江苏省(沙钢)钢铁研究院, 江苏 张家港 215625
  • 收稿日期:2022-08-22 修回日期:2022-11-17 出版日期:2023-01-25 发布日期:2023-02-03
  • 作者简介:黄 朋(1982—),男,工程师,主要研究方向为金属材料的热处理,E-mail:huangpeng568@163.com。

Analysis and improvement on quenching stripe of thin gauge wear resistant steel

Huang Peng, Zhen Fan, Du Ping, Qu Jinbo   

  1. Institute of Research of Iron and Steel, Shasteel, Zhangjiagang Jiangsu 215625, China
  • Received:2022-08-22 Revised:2022-11-17 Online:2023-01-25 Published:2023-02-03

摘要: 针对薄规格耐磨钢淬火后出现的表面条纹和硬度不均匀问题,通过显微组织观察和硬度检测,结合淬火设备和淬火工艺进行了分析。结果表明,钢板淬火过程中淬火机螺旋辊辊槽和辊环处的水量和冷速不均匀是该问题的主要原因。通过调整淬火温度和淬火机水流量、辊速、辊缝等参数,解决了淬火条纹问题,同时获得了良好的板形。

关键词: 耐磨钢, 淬火条纹, 硬度异常, 冷却速率

Abstract: Quenching stripe with hardness difference problem of thin gauge wear resistant steel plates was studied by means of microstructure and hardness examination combined with equipment and process analysis. The results show that the main reasons for the problem are the different water flows and cooling rates between the groove and collar regions of spiral rollers of the quenching machine. By optimization of the quenching temperature, water flow, roller speed and roll gap, the quenching stripe problem is solved and good plate flatness is obtained.

Key words: wear resistant steel, quenching stripe, abnormal hardness, cooling rate

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