26CrMo4V钢高抗挤套管内折叠的分析和改进工艺措施

孙开明; 李士琦; 张传友; 郁健

您当前的位置：

首页 >

文章列表页 >

26CrMo4V钢高抗挤套管内折叠的分析和改进工艺措施

工艺技术 | 更新时间：2026-01-21

- 26CrMo4V钢高抗挤套管内折叠的分析和改进工艺措施
- An Analysis on Inner Overlap of High Anti-Collapse Strength Seamless Casing Tube of Steel 26CrMo4V and Improved Technology Measure
- 特殊钢 2008年29卷第6期页码：31-33
- 作者机构：
  
  1. 北京科技大学冶金与生态工程学院,北京,100083
  2. 天津钢管集团股份有限公司技术中心,天津,300301
- 作者简介：
  
  [ "孙开明(1959-),男，总工程师，教授级高级工程师，1982年北京科技大学毕业，钢铁冶金和无缝钢管制造。" ]
- 基金信息：
- DOI：
  中图分类号：
- 收稿：2008-05-21，
  
  网络首发：2022-12-07，
  
  纸质出版：2008-12-07
- 稿件说明：
移动端阅览
孙开明, 李士琦, 张传友, 等. 26CrMo4V钢高抗挤套管内折叠的分析和改进工艺措施[J]. 特殊钢, 2008,29(6):31-33.

孙开明, 李士琦, 张传友, et al. An Analysis on Inner Overlap of High Anti-Collapse Strength Seamless Casing Tube of Steel 26CrMo4V and Improved Technology Measure[J]. Special Steel, 2008, 29(6): 31-33.
孙开明, 李士琦, 张传友, 等. 26CrMo4V钢高抗挤套管内折叠的分析和改进工艺措施[J]. 特殊钢, 2008,29(6):31-33. DOI：

孙开明, 李士琦, 张传友, et al. An Analysis on Inner Overlap of High Anti-Collapse Strength Seamless Casing Tube of Steel 26CrMo4V and Improved Technology Measure[J]. Special Steel, 2008, 29(6): 31-33. DOI：

摘要

26CrMo4V钢(%:0.26C、0.95Cr、0.16Mo、0.07V)Φ245 mm×12 mm套管内壁凸包折叠的分析表明

该缺陷有沿套管内壁同侧随机分布的规律性

凸包内存在Si、Mn、Fe复合氧化层。认为在穿孔时

连铸坯中的偏心缩孔内壁形成的稳定氧化层阻止缩孔内壁界面的"焊合"

在剪切-拉伸应变的作用下

形成内折叠缺陷。通过低过热度、弱二冷和控制拉坯速度等工艺措施

使内折报废率从15.43%降至5.95%。

Abstract

It was indicated by analysis on bulge-like inner overlap of Φ245 mm×12 mm casing tube of steel 26CrMo4V(0.26C

0.95Cr

0. 16Mo

0.07V)that the defects distributed random at the same side of inner wall and there was Si-Mn-Fe compound oxide layer in overlap.It was considered that the bonding of eccentric shrinkage cavity in cast bloom was prevented in piercing by the stable oxide layer which formed at inner wall of eccentric shrinkage cavity

and the inner overlap defects formed at action of combined shear and tensile strains during piercing.With the technology measures such as lower overheating of liquid steel

weak secondary water cooling and controlling casting speed

the reject ratio of tube with inner overlap decreased to 5.95% from original 15.43%.

关键词

Keywords

references

浏览量

下载量

CSCD

CNKI被引量

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据