发热保温冒口套在真空感应熔炼炉浇注中的应用研究  

Study of Fever Heat-preservation Riser Head in Vacuum Induction Melting Furnace

作　　者：冯兆龙[1] 

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471039

出　　处：《铸造设备与工艺》2011年第3期46-47,共2页Foundry Equipment & Technology

摘　　要：通过实验研究并在分析了真空感应熔炼炉浇注完成之后钢锭的冷却方式的基础上,总结出真空浇注钢锭缩孔形成原因并进行了采用发热保温冒口套进行补缩的试验研究工作。试验结果表明,当把发热保温冒口套的尺寸控制在H180 mm×φ200 mm的范围内,发热冒口套不仅减少了钢锭的内部铸造缺陷,使心部螺旋状缩孔基本消失,还提高了钢锭的致密度,细化了晶粒,从而提高了钢锭的成品率及综合性能,使最终轧制拉拔的成品焊丝性能有了不同程度的提高。Through a series of theoretical analysis and experimental study about the cooling mode of steel ingot melted by vacuum induction melting furnace,it is summed that the steel ingot＇s defect can be disappeared through the application of the heat preservation riser head.When the size of the riser head is in the range of H180mm×Φ200,the steel ingot＇s defect is less than any other size.Through using the heat preservation riser head,we can improve the quality of the steel ingot and the wire＇s mechanical property.

关 键 词：真空感应熔炼炉 冒口套 发热保温 钢锭 

分 类 号：TG244[金属学及工艺—铸造]