Effects of process parameters on semi-solid squeeze casting performance of aluminum alloy scrolls for scroll compressors

作     者：Yong-fei Wang Sheng-dun Zhao Yi Guo Jun-ling Yang Yong-fei Wang;Sheng-dun Zhao;Yi Guo;Jun-ling Yang

作者机构：School of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710049China State Key Laboratory of Fluid Power and Mechatronic SystemsZhejiang UniversityHangzhou 310027China School of Energy and Power EngineeringXi’an Jiaotong UniversityXi’an 710049China CAS Key Laboratory of CryogenicsTechnical Institute of Physics and ChemistryBeijing 100190China 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2020年第17卷第5期

页      面：347-356页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：the China Postdoctoral Science Foundation(Grant No.2018M 643627) the Open Foundation from the CAS Key Laboratory of Cryogenics,TIPC(Grant No.CRYO201810) the Fundamental Research Funds for the Central Universities(Grant No.XZY012019003/XZD012019009) the Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems(Grant No.GZKF-201912) 

主　　题：semi-solid squeeze casting aluminum alloy scroll compressor numerical simulation experimental verification 

摘      要：The aluminum alloy scroll is one of the key parts of the scroll compressors widely used in the air-conditioning,refrigeration,and heat pump *** this work,the semi-solid squeeze casting(SSSC)process was used to fabricate the aluminum alloy *** effects of process parameters including the pouring temperature,mold temperature,and squeezing velocity on the filling and solidification behaviors of the alloys were investigated through simulations based on the power law cut-off(PLCO)material *** show that there is a significant increase in the flow velocity of the slurry,and the area of the high-speed region enlarges with the increase of the pouring *** homogeneity of the temperature and velocity fields in the slurry is improved with an increase in mold *** the filling time and its variation rate decrease with an increase in squeezing *** maximum solidification time exhibits a linear variation with the increase in pouring *** shrinkage area is decreased by increasing the mold *** optimal process parameters of the SSSC process were obtained from simulation analysis,which are the pouring temperature of 595°C,mold temperature of 350°C,and squeezing velocity of 0.3 m·***,the qualified scroll casting was fabricated using the SSSC process under the optimal process parameters.