【作者】 钟婧； 王谦； 张少达； 李玉刚；

【Author】 Zhong Jing;Wang Qian;Zhang Shaoda;Li Yugang;College of Materials Science and Engineering,Chongqing University;

【机构】 重庆大学材料科学与工程学院；

【摘要】 热送热装技术因其具有节能降耗等多项优势而被世界各国广泛采用,然而对于高强度低合金钢,在采用热送热装工艺时常常出现表面裂纹。针对国内外热送裂纹的多种预防措施,本文对其优缺点进行了简单的介绍,并且提出了一种简单有效的铸坯表面在线快冷技术。分析了在线快冷工艺的原理,目的以及在现场生产过程中的应用效果。实践表明,表面快速冷却技术在预防连铸坯热送裂纹方面具有很大的应用潜力。更多还原

【Abstract】 Hot charge technology has been widely used in the steel industry since its great significance of saving energy.However,the high strength low alloyed(HSLA) steel trends to form more surface defect through hot charging rolling process.In this paper,the advantages and disadvantages of the preventive measures were introduced,and a simple and effective surface fast cooling technology was proposed.Then the theory,purpose and the application effect of the surface fast cooling process were analyzed.The practice indicates that the surface fast cooling technology has great application potential in the prevention of hot cracks.更多还原