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采用Bi Pb Sn低熔点合金和硅油分别模拟钢液和保护渣 ,在实验连铸机上 ,对全幅双条恒稳磁场作用下的连铸结晶器水口区域的流场进行了热模拟实验研究·结果表明 :电磁场对结晶器水口区域流场和水口出流流股的控制能力取决于磁感应强度和拉坯速度·磁感应强度大 ,拉坯速度高 ,控制效果好 ;反之 ,控制效果差·因此 ,结晶器流动控制技术更适合于高拉速的场合 ,而且磁感应强度不应低于某一定值
Bi Pb Sn low melting point alloy and silicone oil were used to simulate the molten steel and mold flux respectively. The thermal simulations of the flow field in the continuous casting mold nozzle area were carried out on an experimental continuous casting machine under the condition of two constant magnetic fields. Results The results show that the controllable ability of electromagnetic field to control the flow field in the outlet area of the mold and the outlet flow of the nozzle depends on the magnetic induction intensity and the casting speed. The magnetic induction intensity is high, the casting speed is high, and the control effect is good. On the contrary, the control effect is poor. Flow control technology is more suitable for high-speed applications, and the magnetic induction should not be lower than a certain value