Female die squeeze casting mold

Abstract

The invention discloses a concave extrusion casting mold, which comprises an upper mold and a lower mold, the upper mold includes an upper mold seat plate, a punch, and a punch fixing plate, and the lower mold includes a lower mold seat plate, a concave mold, a pressure plate, Locking template; the die is movably connected with the lower mold seat plate, the pressure plate is placed above the die, and a locking template is installed above the pressure plate, and the locking template is fixedly connected with the die by bolts; the punch Used in conjunction with the die, the punch is connected to the upper die base plate through the punch fixing plate; a guide post is installed on the lower die base plate, and a guide sleeve is movably connected to the guide post, and the guide sleeve is connected to the upper die base plate. The seat plate is fixedly connected; a die core is installed in the die and fixed on the base plate of the lower die by screws, and a push rod is installed above the die core. The mold of the invention is simple in structure and easy to use, realizes extrusion casting of castings with uneven wall thickness, and avoids shrinkage porosity and cracks at thick-walled parts due to difficulty in feeding due to uneven wall thickness of the casting during the molding process.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a concave extrusion casting mold. Background technique [0002] Aluminum alloy is widely used in aerospace, military industry, automobile, construction and other fields due to its low density, high strength, good formability and processing performance, and recyclability. Since machining reduces material utilization and increases production costs, more and more aluminum alloy products tend to be directly formed. Squeeze casting is an advanced near-net shape process. The molten metal is solidified and plastically deformed under high pressure. The structure of the casting is dense and the mechanical properties are close to the level of the forging. Therefore, many castings with high mechanical properties are selected for extrusion casting. However, due to the difficulty in controlling the pouring amount of molten metal in squeeze casting, there are often uneven casting sizes or ins...

AI Technical Summary

Problems solved by technology

However, due to the difficulty in controlling the pouring amount of molten metal in squeeze casting, there are often uneven casting sizes or insufficient pouring during the molding process; when the casting wall is uneven, shrinkage porosity and cracks will appear at the thick wall during the molding process due to the difficulty in feeding

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