Surface net cracks of continuously cast slabs

ZHU Guosen; WANG Yongsheng; WANG Xinhua; WANG Wanjun

doi:10.13374/j.issn1001-053x.2005.04.013

Volume 27 Issue 4

Aug. 2021

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 2005 > 27(4): 441-443

ZHU Guosen, WANG Yongsheng, WANG Xinhua, WANG Wanjun. Surface net cracks of continuously cast slabs[J]. Chinese Journal of Engineering, 2005, 27(4): 441-443. doi: 10.13374/j.issn1001-053x.2005.04.013

Citation:

ZHU Guosen, WANG Yongsheng, WANG Xinhua, WANG Wanjun. Surface net cracks of continuously cast slabs[J]. Chinese Journal of Engineering, 2005, 27(4): 441-443. doi: 10.13374/j.issn1001-053x.2005.04.013

ZHU Guosen, WANG Yongsheng, WANG Xinhua, WANG Wanjun. Surface net cracks of continuously cast slabs[J]. Chinese Journal of Engineering, 2005, 27(4): 441-443. doi: 10.13374/j.issn1001-053x.2005.04.013

Citation:

PDF( 586 KB)

Surface net cracks of continuously cast slabs

doi: 10.13374/j.issn1001-053x.2005.04.013

1. Research Institute of Technology, Beijing 100041, China;
2. Metallurgical and Ecological Engineering School, University Science and Technology Beijing, Beijing 100083, China

Received Date: 2004-04-10
Rev Recd Date: 2004-06-10

Available Online: 2021-08-17

Abstract

Abstract

The chemical composition and microstructure near surface net cracks of continuously cast slabs and hot rolled plates were analyzed. The results showed that there exist Cu and Cr near the cracksand the cracks propagate along the vicinities of grain boundary. The reason of net cracks formation can be concluded that abrasion of the mold coating causes liquid copper to penetrate into the Fe matrix along the grain boundary ofaustenite and enriched copper will deteriorate the hot ductility of steel tremendously, on the basis of which, some measures to control surface net cracks were put forward.
- copper,
- ductility,
- net crack,
- continuously cast slab