工艺参数对一炉双流连续定向凝固过程稳定性的影响  

Effect of Technological Parameters on Process Stability of Two-flow Continuous Unidirectional Solidification in Single Furnace

作　　者：李飞[1] 赵侠[1] 常国威[2] 

机构地区：[1]辽宁石油化工大学职业技术学院,辽宁抚顺113001 [2]辽宁工业大学材料与化学工程学院,辽宁锦州121001

出　　处：《热加工工艺》2008年第9期32-34,共3页Hot Working Technology

基　　金：教育部重点科研项目资助(03032)

摘　　要：利用自制的一炉双流连续定向凝固设备,以纯铝为原料,进行了工艺研究。考察了各工艺参数对一炉双流连续定向凝固过程稳定性的影响。结果表明,结晶器出口温度、结晶器形状与位置、拉坯速度、冷却能力、熔体温度等因素对凝固过程的稳定性有着显著影响,并通过影响固液界面位置及铸锭的表面质量来实现。Using pure AI as raw material, the technology was studied through the self-made equipment of two-fiow continuous unidirectional solidification in single furnace. And the effects of various technological parameters on process stability of two-fiow continuous unidirectional solidification was investigated. The results show that the technological parameters such as mold outlet temperature, shape and position of mold, drawing speed, cooling capacity, melt temperature have a remarkable effect on the solidification process stability, which is realized by affecting the solid-liquid interface and surface quality of ingot.

关 键 词：工艺参数 连续定向凝固 稳定性 固液界面 

分 类 号：TG249.7[金属学及工艺—铸造]