Non-riser Casting Process of Ductile Iron Cylinder of Large Reciprocating Compressor
Author of the article:GU Yu;WAN Hengzhi;YU Chunpeng;WANG Wei;ZHANG Sen
Author's Workplace：Shenyang Yuanda Compressor Co.,Ltd.,Shenyang 110020,China
Key Words：non-riser pouring temperature chemical composition
Abstract：
The cylinder casting of reciprocating compressor had complicated water cavity and crisscrossing air cavity,and the part structure was quite complex.The traditional riser was usually annular riser,and riser-free processes were rarely used.The reciprocating compressor cylinder is made of QT450-10 A with a weight of 4 600 Kg.Adopting suitable pouring temperature and chemical composition,the chillers are used at local hot spots to realize the non-riser process.
