Numerical Simulation and Process Design of Large Complex Single Screw Compressor Housing
Author of the article:LI Jiading;WANG Hui;JIANG Miao;WANG Donghong
Author's Workplace：Jiashan Xinhai Precision Casting Co.,Ltd.,Jiashan 314101,China;College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014,China;Shanghai Key Lab of Advanced High-temperature Materials and Precision Forming,Shanghai 200240,China
Key Words：complex single screw compressor housing casing separately casting process numerical simulation bottom and side pouring system
Abstract：Single screw compressor housing casting structure is complex,water pressure test requires zero leakage,which requires reasonable casting process design,no shrinkage defects in the casting.The housing is cast separately:main body and window parts;then,the widow parts are welded on the main body late.According to the structure characteristics of the casting,bottom and side gating system is adopted.,and the temperature and shrinkage defect position during solidification are analyzed by ProCast simulation software,and the difficult problems of casting process are solved.The results show that the mechanical properties and metallographic structure of the castings are qualified and the surface roughness of the castings is less than Ra3.2.
