Research and Development of 600℃High Temperature Titanium Alloys
Author of the article:CHEN Yonglong
Author's Workplace：Nanchong Vocational and Technical College,Nanchong 637130, China
Key Words：large cylinder head of casting iron bottom gating middle gating top gating pouring technology
Abstract：
The casting process of complex thin-walled cast iron with wet clay sand mold for large six-cylinder head of automotive engine was studied. Serious defects such as blowhole, underpouring and cold isolation occurred in the castings by using the traditional bottom-pouring pouring system on the inlet side and the middle-pouring pouring system on the exhaust side. The results show that the top pouring system has high qualified rate, high production rate and good technical and economic effect, lower casting temperature and better surface quality.
