电磁铸造冷却速度对铸锭质量的作用规律  

Effect of electromagnetic casting cooling rate on ingot quality

作　　者：王振哲 刘书涛 Wang Zhenzhe;Liu Shutao(China Nuclear Power Engineering Co.Ltd.,Beijing 100840,China)

机构地区：[1]中国核电工程有限公司,北京100840

出　　处：《现代盐化工》2021年第2期176-178,共3页Modern Salt and Chemical Industry

摘　　要：以铝合金作为实验材料,开展了不同冷却速度对电磁铸造组织的作用规律研究。结果表明:冷却速度会直接影响铸锭凝固组织的改善效果,在行波磁场水冷0.47 K/s条件下,晶粒尺寸主要介于150.00~400.00 μm,平均尺寸为251.67 μm,微观组织的晶粒尺寸变得更加细小,分布也更加均匀,晶粒也趋近于等轴化。在合金的电磁铸造过程中,只有在合适的冷却速度条件下,才能最大限度地发挥磁场的细晶效果。Taking aluminum alloy as experimental material,the effect of different cooling rates on electromagnetic casting structure was studied.The results show that the cooling rate will directly affect the improvement of ingot solidification structure.Under 0.47 K/s traveling wave magnetic field,the grain size is mainly between 150.00~400.00μm,and the average size is 251.67μm.The grain size of structure becomes smaller and more uniform and the grain size also approaches equiaxed.In the electromagnetic casting process of the alloy,the fine crystal effect of the magnetic field can be maximized only under the appropriate cooling rate.

关 键 词：铝合金 电磁铸造 冷却速度 

分 类 号：TG292[金属学及工艺—铸造]