Patent ID: 8967232
Filing Date: 2015-03-03
Classification: B22D

Abstract:
1. A vacuum die-casting system comprising a casting chamber having a filling opening and an inner wall, a casting piston able to be moved in the casting chamber and having an outer mantle, a piston rod connecting the casting piston with a casting drive, and an evacuator comprising a vacuum system and comprising at least one suction pipe having a first end and a second end, wherein a ring gap is configured between the outer mantle of the casting piston and the inner wall of the casting chamber, and wherein the casting piston has at least one depression or hollow standing in a flow connection with the ring gap and able to be evacuated, wherein the evacuator is able to evacuate the at least one depression or hollow, wherein the first end of the at least one suction pipe is connected with the at least one depression or hollow, in terms of flow technology, wherein the second end of the at least one suction pipe is connected with the vacuum system, in terms of flow technology, wherein the at least one suction pipe runs along the piston rod on the outside of the piston rod, wherein the first end of the at least one suction pipe makes a transition into the at least one depression or hollow via a piston region or a work piece region facing the piston rod, and wherein the at least one suction pipe is connected with the piston region or the work piece region, in terms of flow technology.