Stable Production of Large Blower Housing 在线阅读 下载PDF
Author of the article:TANG Yan;XU Lei;WEI Lai;MA Liqiang
Author's Workplace：Foundry Branch, Qinchuan Machine Tool & Tool Group Share Co., Ltd., Baoji 721009, China
Key Words：blower casing set of core size control production safety
Abstract：
The model composition, technical requirements and acceptance criteria of fan housing casting of AV63 series were introduced. The casting process of resin sand pit core molding was described as an example of lower casting. The molding, core-making, box closing and melting and pouring processes are discussed. It was pointed out that the key to the safe and smooth production is to make good prenatal preparation and strict operation process. The results show that by adopting a series of technological means, the main defects such as the surface quality of the casting, such as sand sticking,slabbing and so on, the size deviation, the running of the casting, the bottom leakage and the lifting of the box are solved.
