A high-performance die-casting forming method and product based on a two-plate die-casting machine

Abstract

The invention belongs to the technical field of metal parts manufacturing and processing, and specifically discloses a high-performance die-casting forming method and product based on a two-plate die-casting machine, which includes the following steps: S1: Clamp the molds of the two-plate die-casting machine to form a cavity , and lock the mold; S2 injects the alloy melt to be die-casted into the cavity by first slow injection and then rapid injection; S3 pressurizes and feeds the alloy melt after filling the cavity, and the alloy The melt is cooled and solidified under pressure, and then demolded to obtain die-castings; S4 performs solution heat treatment on the die-castings by first heat preservation in the low-temperature section and second-stage heat preservation, and then ultra-short-time solution heat preservation, and then quenches; S5 quenches The die-casting parts are subjected to aging heat treatment to obtain the required high-performance die-casting parts. The invention can prepare large-scale high-performance metal structural parts, and has the advantages of simple and easy operation, low preparation cost and the like.

Description

technical field [0001] The invention belongs to the technical field of metal parts manufacturing and processing, and more specifically relates to a high-performance die-casting forming method and product based on a two-plate die-casting machine. Background technique [0002] In the casting and forming process of aluminum alloy parts, die casting is a casting method with the fastest production speed and high quality of formed parts. Aluminum alloy die-casting is a method of rapidly filling the cavity of a metal mold with liquid aluminum alloy under high pressure, and rapidly solidifying under high pressure to obtain a casting, also known as high-pressure casting. The so-called large aluminum alloy structural parts usually refer to high-stress parts with the largest dimension greater than 800 mm, or parts with a weight greater than 10 kg, such as automotive structural parts. [0003] Most of the traditional die-casting methods can only produce non-stressed parts such as shell...

AI Technical Summary

Problems solved by technology

Since the two-plate die-casting machine is a new technology that has just appeared in recent years, there is currently a lack of research on the die-casting process based on the two-plate die-casting machine. The existing die-casting process is based on the three-plate die-casting machine, which is not suitable for the two-plate die-casting machine. Research is urgently needed in order to obtain a die-casting process that matches the two-plate die-casting machine, so as to give full play to the advantages of the two-plate die-casting machine to prepare large structural parts with high stress

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