Production Process,Slag Defect Analysis and Countermeasures of Gear Base Casting
Author of the article:KE Zhimin;CHEN Penghui
Author's Workplace：Guangdong Zhongtian Chuangzhan Ductile Iron Co.,Ltd.,Yingde 513000,China
Key Words：slag inclusion defect pouring temperature mechanical properties metallographic structure
Abstract：
The technical requirements and production difficulties of gear housing castings were analyzed,and the selection and control of casting modeling,melting process and other technological parameters of gear housing castings were put forward,as well as the control methods of spheroidization and inoculation treatment.The causes of slag inclusion defects in castings were discussed,and some countermeasures were put forward,such as increasing casting temperature,increasing filter net and controlling iron chiller.The results show that by means of the metallographic,mechanical properties and ultrasonic inspection of the attached casting test block,all the indexes meet the technical quality requirements of customers,and the stable quality production is achieved.
