摘要
通过生产试验,对Q235中板表面纵向裂纹进行检测和分析。确认了板坯原始裂纹是造成中板边部纵向裂纹的根源。经过对板坯连铸工艺调整和技术攻关,使裂纹缺陷得到有效控制,板坯裂纹缺陷比例由5.3%降到1.4%。
The longitudinal crack on the surface of Q235 jobbing sheet is examined and analyzed during production. It is concluded that the original crack of billet is the root of the side longitudinal crack of jobbing sheet. After carrying out the technological readjustment and technical improvement, the crack defect is controlled efficiently. Now the crack defect is reduced from 5.3% to 1.4%.
出处
《天津冶金》
CAS
2004年第3期14-16,共3页
Tianjin Metallurgy
