高镍奥氏体球墨铸铁涡轮增压器壳体材质及工艺研究

Investigation About Material and Technology for Turbine Housing of High-Ni Austenitic Ductile Iron

对高镍球铁涡轮增压器壳铸件的开发和研究进行了系统总结,包括高镍奥氏体球铁材质成分和铸件工艺设计,球化剂、孕育剂的选择和制备,高镍球铁涡壳铸件表面气孔缺陷和缩孔缩松缺陷的消除,高镍奥氏体球铁铸造性能的测试以及高镍球铁涡轮增压器壳铸件理化检测问题。

Manufacture and investigate about turbine housing of high-Ni austenitic ductile iron were summarized systematically. It include material component and technological design of high-Ni austenitic S.G.I, selection and manufacture of spheroiditic agent and inoculant, elimination of surface porosity and shrinkage defects for turbine housing castings, determination of foundry properties and physiochemical properties for high-Ni austenitic S.G.I.