铸型失压紧实工艺及机理研究  

Research of Technology and Principle of Mould Compact by

作　　者：章道增[1] 樊自田[1] 京玉海[1] 黄益诚 

机构地区：[1]江西工业大学 [2]南昌八一电讯铁件厂

出　　处：《铸造设备研究》1993年第3期10-13,20,共5页Research Studies On Foundry Equipment

摘　　要：笔者在实验中发现,若将填满型砂的砂箱内,充以0.2—0.5MPa的压缩空气,当压缩空气迅速定向排出,定向排出的气流对型砂具有良好的紧实作用,笔者称之为“失压紧实”。本文概略地介绍了失压紧实工艺过程,实验装置;本文研究了失压紧实的工艺参数对铸型紧实度的影响,及其实砂机理,并对“失压紧实”的前景作了初步的探讨。In a method introduced by anthor, first step is charging compressed air with 0.2～0.5MPa into sand mould, then this compressed air will go out rapidly from mould in depinite direction, Author fund out that this air flow in definite direction can play a well rele of sand mould compact, and be call the method < Exhaust pressure compact >. This paper indicates technology process, experiment device, influence of technology parameter upon density of sand mould, compact principle and primary discussion the future of < Exhaust pressure compact >.

关 键 词：铸造 失压紧实 气冲 

分 类 号：TG242[金属学及工艺—铸造]