【作者】 谷国刚； 王宏霞；

【Author】 Gu Guogang Wang Hongxia (Research Institute of Taishan Iron and Steel Co.Ltd.,Laiwu,Shandong 271100)

【机构】 山东泰山钢铁集团有限公司研究所；

【摘要】 针对连铸坯表面出现的裂纹缺陷,通过宏观检测、金相分析、扫描电镜检测等检测研究方法,得出连铸坯表面裂纹缺陷是液态金属结晶形成固体以后产生的,是连铸一冷水强度大,在热应力等的作用下产生开裂形成裂纹。更多还原

【Abstract】 In view of appearance of cracks on slab surface and through using detection and study methods such as macro-examine,metallographic phase analysis and SEM measurement,a conclusion has been reached that the cracks on slab surface occur after steel solidifies as they form under the effect of thermal stress due to high intensity of the primary cooling water.更多还原