Auxiliary vacuum die-casting forming system

Abstract

The invention relates to an auxiliary vacuum die-casting forming system. The auxiliary vacuum die-casting forming system comprises a pressure chamber, a cavity, a vacuum valve, a gas path vacuum system and an electrical vacuum system, wherein the vacuum valve and the gas path vacuum system are connected between the pressure chamber and the cavity, and the electrical vacuum system is used for controlling the gas path vacuum system. The electrical vacuum system is provided with a first pressure transmitter, a second pressure transmitter, a vacuum pump, a vacuum tank, a flow distribution chip and a pneumatic triple piece, wherein the vacuum pump, the vacuum tank, the flow distribution chip and the pneumatic triple piece are sequentially connected in series. The first pressure transmitter, the second pressure transmitter and the vacuum pump, the vacuum tank, the flow distribution chip and the pneumatic triple piece which are sequentially connected in series are connected and disconnected with one another through different switches, so that the auxiliary vacuum die-casting forming system has two different working modes, namely ordinary die-casting and vacuum die-casting, in this way, the vacuum valve is prevented from being blocked by molten metal, the quality of products can be improved easily, and production efficiency is improved.

Description

technical field [0001] The invention relates to a vacuum die-casting auxiliary forming system, in particular to a forming system utilizing vacuum die-casting technology. Background technique [0002] With the world's energy supply becoming more and more tense, and the global greenhouse gas emissions are becoming more and more serious, coupled with the increasingly fierce competition in the automobile manufacturing industry, the advanced automobile manufacturing technology of "low energy, low emission and low cost" is becoming more and more important. It has become a sustainable development trend in the automobile manufacturing industry. And reducing the weight of cars is a very effective way to save energy and reduce emissions. In this development process, the measures at this stage mainly use aluminum alloy to replace the previous materials such as iron or steel, such as the all-aluminum alloy body of the German car model AUDI-A8. [0003] With the increasing technical le...

AI Technical Summary

Problems solved by technology

However, the die castings produced by traditional die casting methods have many internal pores and cannot be welded or heat treated. At present, the most advanced technology is to use vacuum die casting. The principle of vacuum die casting is to remove or remove part of the gas in the mold cavity , so that the air pressure in the cavity is reduced, so that the gas in the stamping and alloy melt can be discharged more easily, so the molten aluminum liquid fills the cavity under the action of pressure, and solidifies under the action of pressure to obtain a die-casting with a dense structure. molding process

However, the current vacuum die-casting generally has the following problems. During mold debugging, slow injection and abnormal production, because the existing vacuum die-casting auxiliary molding system uses vacuum die-casting, it leads to the problem that the metal liquid blocks the vacuum valve.

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