MOULD FOR PRESSURE CASTING Russian patent published in 2016 - IPC B29C45/08 B29C45/40 B29C45/80 B22D17/22 

FIELD: metal processing.

SUBSTANCE: invention relates to metallurgy for production of articles, mainly, from thermoplastic polymer by pressure casting, mainly, thick-walled articles, as well as obtaining articles from other materials. Mould for injection moulding comprises fixed split part 1 and moving split part 2 to its direct and reverse stroke. Mould is arranged in shape-generating cavity 3 of variable volume, in which there is a sign in form of piston 4 coupled with its surface and equipped with at least one rod 5. Mark is made with possibility of its forward stroke under action of melt injected through immobile part 7, and to eject cast formed in molding cavity 3 moving part 2. Mark is made to eject casting at forward stroke of movable detachable part 2. Versions: surface 4 and connected with it surface of moulding cavity are different from cylindrical shape; in end of sign on side of piston 4 and detachable fixed part there is at least one hole 6; at least one hole 6 at end of sign on side of piston 4 is made at end of rod 5 extending through piston 7.

EFFECT: technical result achieved when using mould according to invention consists in design simplification and improvement of quality of production of casts.

2 cl, 15 dwg