PRESSURE FOUNDRY PROCEDURE UNDER EMPTY AND PRESSURE FOUNDRY MOLD.

摘要

Procedure for die casting under vacuum in order to manufacture high quality castings of metal or its alloys, where a cavity (5) of the cavity (5) is evacuated in a controlled manner by means of a device for generating depression and a shut-off valve (16). mold and a casting chamber (6, 6`), as well as a casting channel of a die casting mold (1), where the cavity (5) of the mold to be filled is released when it is vented and the chamber (6 , 6`) of foundry remains closed until that moment and the first injection is made 100% with the mass of molten metal, characterized in that the casting chamber (6`) is vented through a front hole with respect to the cavity ( 5) of the mold, while the molten metal mass is already moving by means of the casting plunger (7) in the direction of that hole.