|
|
|
| Study of Surface Blow hole Defects of Continuous Casting Slab |
| GENG Ming－Shan Jiong－ming Zhang LIU Zhi-ming |
| |
|
|
|
|
Abstract In this paper, the influencing factor of the blow hole defect in continuous casting slab and hot rolled plate was analyzed. The main reason of surface blow hole defect in continuous casting slab is that the argon gas insufflate the mold from the upper nozzle, argon sealing and submerged entry nozzle cannot float effectively. The argon blow hole was captured by solidified continuous casting slab shell and induced the surface blow hole defect in continuous casting slab. The blow hole mostly distributed to the wide-face shell edge near the narrow side position. The blow hole quantity in the center of wide-face and the 1/4 of wide-face shell is few. The surface blow hole defect in continuous casting slab and hot rolled plate can be eliminated by utilizing no argon blowing.
|
|
Received: 20 February 2009
|
|
|
|
| [1] |
LAN Peng, TIE Zhan-peng, ZHANG Wei, MIAO Hong-sheng, YAN Qing-zhong, ZHANG Jia-quan. Research progress on spot segregation defects in continuously cast semi-products[J]. Iron and Steel, 2020, 55(2): 11-22. |
| [2] |
. Analysis and control of slag inclusion defect of low carbon steel slab[J]. , 2020, 45(2): 0-0. |
| [3] |
XIE shizheng. Effect of roller EMS on macrostructure and properties of high strength steel[J]. , 2020, 45(1): 0-0. |
| [4] |
AI Songyuan, LONG Mujun, ZHANG Mengyuan, CHEN Dengfu,. Hightemperature strength of L245MB slab and elastic #br# properties of iron matrix[J]. Iron and Steel, 2019, 54(8): 194-201. |
| [5] |
DU Chen- wei,,WANG Chun- lei,LI Bo,LI Bin,MA Bing- chuan,ZHANG Jia- quan. Effect of temperature field and cooling rate along casting direction on surface transverse cracks of microalloyed steel[J]. , 2018, 30(7): 523-528. |
| [6] |
SU Lan，SONG Yong，ZHENG Yong-gang，GAO Zhi-gang. Influence of slab chamfer on spread and improvement of width control model in rough rolling[J]. Iron and Steel, 2018, 53(6): 70-75. |
|
|
|
|
2010, Vol. 45 
