An aluminum alloy die-casting mold that is easy to rapidly cool down

Abstract

The invention discloses an aluminum alloy die-casting mold that is easy to rapidly cool and cool, and belongs to the field of die-casting molds. An aluminum alloy die-casting mold that is easy to rapidly cool and cool comprises a die-casting plate. The die-casting plate is clamped with the die-casting mold. It includes a mold body, a membrane core is installed in the mold body, a plurality of uniformly distributed heat exchange plates are fixedly connected to one end of the mold body away from the die-casting plate, and a plurality of guide tubes are connected between the plurality of heat-exchange plates. The lower end of the die-casting mold There is a circulating water tank, a return pipe is connected between the circulating water tank and the main body of the mold, the bottom end of the main body of the mold is drilled with a plurality of drainage holes that communicate with the return pipe, and pipes are connected between the two ends of the circulating water tank and the guide cylinder. , It can realize the adjustment of multiple cooling pipes built in the mold to achieve a comprehensive and uniform cooling of the workpiece in the mold, and the cooling is carried out in multiple stages to prevent the workpiece from cooling too fast and causing the problem of quality degradation after molding.

Description

technical field [0001] The invention relates to the field of die-casting molds, and more particularly, to an aluminum alloy die-casting mold that is easy to rapidly cool and cool down. Background technique [0002] Die-casting die is a method of casting liquid die forging, a process completed on a dedicated die-casting die forging machine. Its basic process is: the molten metal is first cast at low speed or high speed and filled into the cavity of the mold, the mold has a movable cavity surface, and it is pressurized and forged with the cooling process of the molten metal, which not only eliminates the shrinkage of the blank. Loose defects also make the internal structure of the blank reach the broken grains in the forged state. The comprehensive mechanical properties of the blank have been significantly improved. The alloys used in die castings are mainly non-ferrous alloys. As for ferrous metals (steel, iron, etc.), they are rarely used due to problems such as mold materi...

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Problems solved by technology

[0003] In the die-casting process, the temperature is directly related to the quality of the casting. The temperature control in the die-casting process only depends on the heat exchange of the die-casting mold. However, in the initial injection stage of the die-casting process, if the temperature is too low, it will cause liquid molten alloy. Rapid solidification affects the fluidity of the molten alloy and cannot fill the entire cavity. During the pressure-holding stage of the die-casting process, if the temperature is too high, it will cause casting defects

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