device for the removal of gas in the plunger of inie and continues for synthetic ammonia nia

摘要

Device for use in the movable element of a machine for injecting plastic or pasty materials requiring degassing, such as plastics prior to injection into a mould, comprising one or more parts of porous material, impervious to plastic, but permeable to gases, mounted in the same plane as the movable injection elements at the position where gas cavities form due to reduced pressure, the porous parts consisting of a filter connected with the interior of the movable element and with a channel therein opening internally to the atmosphere, outside the periphery of the movable element through the arm of the rod controlling this.