铸造2018，Vol.67Issue(3)：208-212,5.
离心真空吸铸对铝合金凝固组织与性能的影响
Effect of Centrifugal Vacuum Suction Casting Process on Solidification Microstructure and Mechanical Properties of Aluminum Alloy
摘要
Abstract
Centrifugal vacuum suction casting has technical advantages in small complex thin-walled components.In this paper,the experimental search was carried out to study the effect of centrifugal vacuum suction casting process parameters on microstructure and properties. The results show that application of centrifugal rotation at the beginning of vacuum suction casting can increase the filling ability of molten metal, but also form casting defects in the casting to degrade the mechanical properties of the casting.After the mold cauity was filled with metal using vacuum suction casting,the application of centrifugal rotation not only can improve the solidification feeding capacity,but also play the role in mechanical shock and broken grains,so that the grain refines and has good uniformity,and the mechanical properties of the casting are improved.In addition, it is reasonable to determine that the application of centrifugal rotation and unloading vacuum time node,which not only can improve the mechanical properties of the casting,but also can improve the utilization of metals effectively.关键词
真空吸铸/离心旋转/凝固组织/力学性能Key words
vacuum suction casting/centrifugal revolve/solidification structure/mechanical properties分类
矿业与冶金引用本文复制引用
李新雷,刘亮波,郝启堂..离心真空吸铸对铝合金凝固组织与性能的影响[J].铸造,2018,67(3):208-212,5.基金项目
国家自然科学基金(51375391). （51375391）
