中国资源综合利用2025，Vol.43Issue(4)：78-80,3.DOI:10.3969/j.issn.1008-9500.2025.04.022
60Si2Mn弹簧钢加工开裂原因分析
Analysis of Cracking Causes in 60Si2Mn Spring Steel Processing
闫若璞 1陈志月1
作者信息
- 1. 河钢集团唐钢公司,河北 唐山 063000
- 折叠
摘要
Abstract
The 60Si2Mn hot-rolled coil purchased by a domestic automotive parts manufacturing plant has serious cracking problems during acid pickling,cold rolling,and cross cutting processes and cannot be used.A comprehensive analysis of the heating process,rolling process,factory decarburization layer data,annealing process,and post annealing decarburization layer data of 60Si2Mn spring steel shows that using full hydrogen annealing on hot-rolled raw coils(without acid washing)leads to severe decarburization and abnormal growth of surface ferrite grains on the surface of the strip steel.The surface decarburization layer and abnormally grown ferrite grains weaken the intergranular bonding force,and when the material bends and deforms,cracks occur along the surface grain boundaries,ultimately resulting in quenching failure and processing cracking of the steel plate.关键词
弹簧钢/加工开裂/脱碳层Key words
spring steel/processing cracking/decarburized layer分类
冶金工业引用本文复制引用
闫若璞,陈志月..60Si2Mn弹簧钢加工开裂原因分析[J].中国资源综合利用,2025,43(4):78-80,3.
