一种用于通过压缩气体的装置压实铸模材料的装置包括一个预压空间形成的压力容器（5），用于将加压气体，设置在其下方，从型箱（3）和填充框架（4）形成的模具空间和模制箱倒闭图案板（1）的 与模型（2），其模制材料松散地压缩之前堆积，以及布置在所述压力容器和所述成型空间阀，在压力容器内引导的封闭构件（11）和其开口运动之间，至少在所述压力容器中的压力的​​影响，进入模制空间下很大程度上 被引导到它。 封闭构件可被设计为刚性阀板（11）具有多个槽（12），其与非一致的槽（8）在所述阀合作ITZ形成固定板（7），或（作为柔性，薄阀板30 ），这是外周夹紧并在该开口的释放松开加压气体的作用下外周约束（32）后（29）被折叠到模具空间中。

An apparatus for compressing foundry molding material by means of compressed gas consists of a one form space forming pressure vessel (5) for the compressed gas, an arranged underneath, from the molding box (3) and filling frame (4) formed mold cavity and the mold box closing down model plate (1) with the model (2) on which the molding material is loosely piled before compression, and arranged between the pressure vessel and the molding space valve whose closure member (11) guided within the pressure vessel and its opening movement under action of the pressure in the pressure vessel is at least largely in the mold cavity is directed into it. The closure device may be designed as a rigid valve plate (11) having a plurality of slots (12), which cooperate with non-congruent slots (8) in a the valve itz forming stationary plate (7), or as a flexible, thin valve plate (30 ), which is clamped on the edge side and, after dissolving of the edge restraint (32) under the action of the pressurized gas upon release of the opening (29) is folded into the mold space.