Apparatus and process for manufacturing molded parts with gas-assisted injection

Pressurized gas passes through a control valve (2) to the molding tool (3) and is introduced through a nozzle (6) into the molded component (4). Before reaching the tool (3), a cooling medium (8) is injected through a transfer valve (7). The cooling medium can be water, liquid or gaseous nitrogen, o...

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1. Verfasser: ECKARDT, HELMUT
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Pressurized gas passes through a control valve (2) to the molding tool (3) and is introduced through a nozzle (6) into the molded component (4). Before reaching the tool (3), a cooling medium (8) is injected through a transfer valve (7). The cooling medium can be water, liquid or gaseous nitrogen, or liquid or gaseous carbon dioxide. An independent claim is also included for the corresponding equipment, incorporating controls to obtain optimum cooling of the component.