冶金标准化与质量2024，Vol.62Issue(2) ：24-28.

24000TEU集装箱船特厚规格高强船板保心部低温冲击性能研究

Research on low temperature centre impact performance of 24000TEU container ship's special thick and high strength ship plate

赵宇 李文刚 郑治龙 牟凯 王树国 宋赞
冶金标准化与质量2024，Vol.62Issue(2) ：24-28.
✕
  • 维普
  • 万方数据

24000TEU集装箱船特厚规格高强船板保心部低温冲击性能研究

Research on low temperature centre impact performance of 24000TEU container ship's special thick and high strength ship plate

赵宇 1李文刚 1郑治龙 1牟凯 1王树国 1宋赞2
扫码查看

作者信息

  • 1. 日钢营口中板有限公司 营口 115000
  • 2. 冶金工业信息标准研究院 北京 100730
  • 折叠

摘要

为保证 24000TEU集装箱船特厚规格高强船板保心部低温冲击性能,采用低碳+Ti+Nb+Ni的成分体系,即可保证强度,亦可保证较高要求的韧性.采用大变形量、低温控轧、DQ模式 5 kg水冷,获得以针状铁素体(AF)/贝氏体(B)为主,并有少量的多边形铁素体的多相组织,心部冲击均值达到200 J以上.通过除鳞速度和道次的优化,解决特厚高强船板表面水纹花斑问题.成功研发保心部低温冲击性能的特厚规格高强船板,具有良好的强韧性能、焊接性能和表面质量.

Abstract

To ensure the low-temperature centre impact performance of the 24000TEU container ship's special-thick and high-strength ship plate,a low-carbon+Ti+Nb+Ni composition system is adopted to ensure both strength and toughness requirements.By using large deformation,low-temperature controlled rolling,and DQ(5 kg-water cooling),a multiphase structure mainly composed of acicular ferrite(AF)/bainite(B)with a small amount of polygonal ferrite was obtained,and the average center impact performance reached over 200 J.By optimizing the descaling speed and pass number,the problem of watermarks on the surface of special-thick and high-strength ship plates is solved.Successfully developed special-thick and high-strength ship plates with low-temperature centre impact performance,which have good toughness,welding performance,and surface quality.

关键词

特厚规格/高强船板/心部低温冲击

Key words

special thick/high strength ship plate/low temperature centre impact performance

引用本文复制引用

出版年

2024
冶金标准化与质量
冶金工业信息标准研究院

冶金标准化与质量

ISSN：1003-0514
参考文献量3
段落导航相关论文