论文部分内容阅读
报导了采用刺激──响应法实验技术研究小方坯连铸中间罐内液体的混合与流动状态同中间维形状与结构的关系；用聚乙烯塑料粒子模拟钢中夹杂物上浮率同中间罐形状与结构的关系。实验结果表明：小方坯连铸中间罐内液体的流动为活塞流，混返流及死区组成的混合模式；对于三流以上的小方坯连铸中间罐，宜选用三角形结构，其内设置适当的流股控制系统后，液体的混合与流动得到改善，各水口区流股特性趋于一致；停留时间长，罐内温度分布均匀；夹杂上浮率＞９９．９８％。
It is reported that the mixing and flowing state of liquid in intermediate billets of billet and the relationship between the shape and structure of intermediate dimension are studied by using stimulus-response experiment technique. The plastic particles in PE are used to simulate the floating rate of inclusions in steel, Relationship with structure. The experimental results show that the flow of liquid in the billet continuous billet is a mixed mode consisting of plug flow, mixed reflux and dead zone. For the continuous casting of billet continuous flow of more than three streams, the triangular structure should be selected, After the appropriate flow control system, the mixing and flow of liquid are improved, and the flow characteristics in each nozzle area tend to be consistent; the residence time is long and the temperature in the tank is evenly distributed; the inclusion floating rate is> 99.98%.