摘要
在连铸生产工艺中,取向硅钢作为一种传统意义上的“软钢”,展现出独特的物理特性,其导热性能相对较差,液态导热率更是比普通碳钢低了约27%,呈现出显著的弱导热性。这种特性使得取向硅钢在高温环境下极易发生形变。因此,在连铸生产过程中,经常出现结晶器液位波动,铸坯鼓肚和凹陷等表面缺陷,以及中心偏析、中心疏松和裂纹等内部质量问题。这些问题对连浇炉数产生了直接影响。为了解决这些问题,设计并实施合理的冷却制度和浇铸速度成为提升连浇炉数的关键策略。
In the production technology of continuous casting,oriented silicon steel,as a type of“soft steel”in the traditional sense,shows unique physical properties.Its thermal conductivity is relatively poorer,liquid thermal conductivity is approximately 27%lower than that of ordinary carbon steel so that it shows significant weak thermal conductivity.This property makes it easy to be deformed in high temperature environment.Consequently,there are often such surface defects as liquid level fluctuation of crystallizer,bulge and dimple of ingot blank as well as such internal quality issues as center segregation,center porosity and cracks during the continuous pouring production process.These issues directly impact the number of continuous pouring heats.In order to solve these problems,it becomes the key strategy for increasing the number of continuous pouring heats to design and implement reasonable cooling regime and casting speed.
作者
王清贤
段云波
张立通
孙梦晨
张建
Wang Qingxian;Duan Yunbo;Zhang Litong;Sun Mengchen;Zhang Jian(Rare Earth Steel Plate Plant of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)
出处
《包钢科技》
2025年第2期23-26,共4页
Science & Technology of Baotou Steel
关键词
连铸机
取向硅钢
连浇炉数
continuous casting machine
oriented silicon steel
number of continuous pouring heats
