Effect of thickness of iron mould and coated sand on solidification

HUANG Lie-qun1，2， DONG Ling-yun1， PAN Dong-jie1，2， XIA Xiao-jiang2
（1. College of Mechanical Engineering， Zhejiang University of Technology， Hangzhou 310014，China；
2. Zhejiang Institute of Mechanical & Electrical Engineering Co.，Ltd.， Hangzhou 310009，China）

Abstract： In order to solve the problems of the solidification of ductile iron in iron mould coated sand，computer simulation was investigated. The thickness of iron mould was 40 mm and 20 mm，and the thickness of coated sand was 6 mm，8 mm，10 mm and 13 mm. After the analysis of solidification，the relationship of iron mould，coated sand and casting was established. Also thermocouple was used to measure the solidification curve of practical casting， the reliability of the computer simulation was verified. The experimental results show that the process parameters of ductile iron in iron mould coated sand could provide a reference for practical application.
Key words： iron mould coated sand；ductile iron；computer simulation；solidification