气冲气推成形触头造型机的实砂机理及实砂效果的探讨  

The Study of Compacting Mehanism and Compacting Effects of Air Impact Molding Machine with Formed Squeeze Head

作　　者：谢祖锡[1] 夏鹏成[1] 孙乃坤[1] 王桂华[1] 

机构地区：[1]沈阳工业大学

出　　处：《中国铸造装备与技术》2002年第5期17-20,共4页China Foundry Machinery & Technology

基　　金：国家自然科学基金;项目编号:59975061

摘　　要：文章介绍了一种新发明的气冲气推成形触头造型机实砂机构。它于同一工位、同一工序、用同一动力,同时实现了气冲紧实与成形触头冲击紧实。实验表明,气冲气推成形触头造型机的实砂效果十分理想,砂型紧实度高而且均匀,完全克服了目前单纯气冲造型技术中存在的弊端,拓宽了气冲造型机的适用范围。这是一种结构简单、投资少、高速、高效、低能耗的造型实砂机构。In this paper,a kind of new experimental molding machine,air impact experimental molding machine with formed squeeze head pushed by air fluid was introduced.The new machine combined air impact molding with formed squeeze head press molding by making them conduct at the same working position, at the same time and driven by the same dynamic source. The compacting mechanism of the new molding machine is investigated by the dynamic testing the compacting process.The results indicate: Sand mold compactedness is high and homogeneous: It not only eliminates the 'arch effects' of sand mold with high pattern and large deep concave ratio,but also eliminates the loose sand layer on top of the sand mold.Thus it totally overcomes the shortcomings of pure air impact molding. Moreover, the new molding machine can be used in the molding of low sand mold, so it widens the application range of pure air impact molding. This is a kind of high speed, high efficiency, low investment and low energy consumption compacting machine.

关 键 词：实砂机理 实砂效果 气冲 气推 成形触头 造型机 铸造 

分 类 号：TG231.6[金属学及工艺—铸造]