摘要
连铸坯内部中心缩松、缩孔是影响铸坯内部质量的主要缺陷之一。本文综合运用数值模拟、实验研究、数学推导等手段 ,提出了描述连铸坯中缩缺陷形成可能性大小的连铸坯中缩敏感系数。并以中缩敏感系数为桥梁 ,建立了工艺因素与中缩缺陷的关系 。
Centerline shrinkage is one of main defects of slab ingot. In this paper, a criterion for shrinkage formation in slab ingot, which is named “centerline shrinkage sensitivity coefficient”, is proposed, based on solidification principle, numerical simulation, experiment and statistic. Then the relationship between centerline shrinkage of slab ingot and technical parameters of continuous casting is determined. It is shown that the criterion can be used to optimize the technical parameter and control the continuous casting process for “good quality”.
出处
《铸造技术》
CAS
北大核心
2004年第9期673-675,共3页
Foundry Technology
基金
国家自然科学基金
编号 :50 1 740 0 9
关键词
连铸
中心缩松
中缩敏感系数
Continuous casting
Centerline shrinkage
Centerline shrinkage sensitivity coefficient
