大型厚断面铸态铁素体球墨铸铁飞轮的生产技术  

Production Technology of the Large and Heavy Section As-Cast Ferrite Ductile Iron Flywheel

作　　者：徐培好 秦广业 毕海香 许景峰 徐继柱 

机构地区：[1]潍柴重机股份有限公司,山东潍坊261001

出　　处：《铸造》2013年第10期940-943,共4页Foundry

摘　　要：通过合理的成分设计、铁液高温熔炼与脱硫处理、重稀土镁复合球化剂球化处理、多重强化孕育处理及低温浇注等熔炼工艺设计,结合合理的铸造工艺与铸件箱内冷却控制,成功生产了大型厚断面铁素体球墨铸铁飞轮铸件。经检验,铸件在铸态条件下满足EN-GJS-400-15U材质要求,且本体磁粉探伤与超声波球化率检测均符合铸件技术条件。经批量生产验证,该工艺稳定可靠,产品全部合格。The large and heavy section ferrite ductile cast iron flywheel has been produced by designing chemical composition, smelting with high temperature and desulphurization treatment, complex nodular treatment with heavy rare earths magnesium, multiple-inoculating and pouring at low temperature etc., combining with the suitable foundry technologies and cooling in flask. The flywheel castings meet the EN-GJS-400-15 material quality requirements under as-cast condition. And the flywheel meets technical requirements of magnetic particle inspection and UT of spheroidization rate. The foundry technology is stable and reliable by production trial, and all flywheels have been up to standard.

关 键 词：厚断面 铸态铁素体 重稀土 多重孕育 

分 类 号：TG255[金属学及工艺—铸造]