Analysis and Process Improvement on Bending Cracking of 430 Stainless Steel 1.8 mm Cold Rolling-Annealing Pickling Plate

周鹏; 崔珊

您当前的位置：

首页 >

文章列表页 >

Analysis and Process Improvement on Bending Cracking of 430 Stainless Steel 1.8 mm Cold Rolling-Annealing Pickling Plate

更新时间：2026-01-21

- Analysis and Process Improvement on Bending Cracking of 430 Stainless Steel 1.8 mm Cold Rolling-Annealing Pickling Plate
- Special Steel Vol. 40, Issue 6, Pages: 51-54(2019)
- 作者机构：
  
  西安航空职业技术学院航空材料工程学院,西安,710089
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：12 June 2019，
  
  Online First：11 May 2022，
  
  Published：11 May 2019
- 稿件说明：
移动端阅览
周鹏, 崔珊. Analysis and Process Improvement on Bending Cracking of 430 Stainless Steel 1.8 mm Cold Rolling-Annealing Pickling Plate[J]. Special Steel, 2019, 40(6): 51-54.
DOI：

周鹏, 崔珊. Analysis and Process Improvement on Bending Cracking of 430 Stainless Steel 1.8 mm Cold Rolling-Annealing Pickling Plate[J]. Special Steel, 2019, 40(6): 51-54. DOI：

摘要

430不锈钢冷轧酸洗板在折弯加工过程中出现了开裂现象

为了找出裂纹成因

对所使用的430不锈钢冷轧酸洗板进行了化学成分分析、力学性能测试和金相检验

并对样品折弯开裂处的裂纹进行了形貌观察。结果表明

430不锈钢酸洗板折弯开裂的主要原因为基体组织中晶粒大小不均匀

存在异常长大的情况

且晶界处存在大量碳化物析出聚集

促使开裂裂纹沿着晶界由外向内迅速地扩展

导致产品的折弯开裂。通过分析可知

430不锈钢冷轧板材在退火过程中的加热时间过长、材温偏高导致基体内部组织异常。通过控制430不锈钢冷轧板的退火工艺参数:1区加热段温度840～850℃

2区加热段温度870～900℃

在炉时间130～140 S

从而避免了折弯开裂的发牛。

Abstract

The cracking is appeared at bending 430 stainless steel pickling plate. In order to find out the cause o£ cracking

chemical composition analysis

mechanical properties test

metallographic analysis and crack analysis on the specimen have been carried out. The results show that the bending cracking of 430 stainless steel pickling plate is caused by the heterogeneity of grain size in matrix and the aggregation of precipitated corbide on grain boundary

which accelerated crack propagation along the grain boundary and led to bending cracking of products. It is proved that the abnormal microstructure is introduced by the longer annealing period of 430 stainless steel pickling plate at higher temperature. With control of annealing parameters of 430 stainless cold-rolling plate: annealing of 1

heating section at

840 〜850 ℃ and 2

heating section at 870 ~900 ℃. for 130 ~ 140 s in annealing process

the bending cracks of plate is avoided

关键词

Keywords

references

Views

下载量

CSCD

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

Cause Analysis on Surface Crack of Drill Steel 55SiMnMo Rolling Product and Process Improvement

Analysis on Pen-Tip Shaped Fracture of SWRH82B Wire Rod and Process Improvement

Analysis on Surface Crack Formation Mechanism for Crankshaft Forgings of Steel 42CrMo and Process Improvement

Analysis on Central Segregation of Casting Bloom of Heavy Rail Steel and Process Improvement

Mixed Crystal Surface Defect of Wire Rod of Stainless Steel 0Cr13C and Process Improvement

Related Author

朱叶

赵景存

秦凤婷

王红伟

刘宗辉

王长健

段永卿

王建锋

Related Institution

(石钢京诚装备技术有限公司，)

济源职业技术学院

济源钢铁集团公司

四川建筑职业技术学院机电工程系

邯郸钢铁集团有限责任公司一炼钢厂

⁰