Effects of several casting parameters on slag entrapment in mould( part A: water modeling)

作     者：ZHANG Feng MA Changsong LI Guangqiang 

作者机构：Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of EducationWuhan University of Science and TechnologyWuhan 430081China Silicon Steel DepartmentBaoshan Iron&Steel Co.Ltd.Shanghai 201900China 

出 版 物：《Baosteel Technical Research》 (宝钢技术研究（英文版）)

年 卷 期：2012年第6卷第2期

页      面：32-38页

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

主　　题：casting parameter mould slag entrapment water modeling 

摘      要：The mechanism of slag entrapment in the mould was analyzed and the water modeling experiment was done according to the industrial manufacturing. The results show that the flow of the liquid steel becomes more active and the level fluctuation in the mould becomes bigger when the casting speed increases from 1.0 m/min to 1.2 m/min. So the control of slag entrapment in the mould becomes more difficult. When the depth of the nozzle increases from 30mm to 42. 5mm and the angle increases from 15~ downward to 30° downward, the level fluctuation in the mould becomes smaller and the slag entrapment in the mould also decreases. But the impact depth increases and the circumfluence vortex center moves downward, which is unfavorable for the flotation of gas bubbles and inclusions. Furthermore, the impact depth with side holes a （ 16.3 × 20mm2 ） and b （ 10 × 10 mm2 ） is almost equal, but a smaller level fluctuation can be obtained with side hole a.