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Aluminum alloy low-pressure casting device and process

A low-pressure casting and aluminum alloy technology, applied in the field of aluminum alloy low-pressure casting devices, can solve the problems of material consumption, liquid lifting, long pressure relief time, inability to adapt to the fiercely competitive environment, and high production costs, saving pressure relief time, The effect of saving liquid liter time and consumption

Inactive Publication Date: 2018-07-24
CITIC DICASTAL
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The traditional low-pressure casting process equipment uses dry compressed air in the holding furnace, which consumes a lot of gas and consumes a lot of electricity to heat the low-temperature compressed air in the furnace to maintain the temperature of the molten aluminum in the furnace. There is usually a connection between the mold and the molten aluminum in the furnace. The riser pipe is longer than 1 meter, and the material consumption, liquid rise and pressure release time are longer. Generally speaking, in the aluminum alloy die-casting industry where the technical threshold is not high, the production cost of traditional low-pressure casting process equipment is high. , can no longer adapt to the fierce competition environment of the industry

Method used

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  • Aluminum alloy low-pressure casting device and process

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Embodiment Construction

[0015] An aluminum alloy low-pressure casting process, the check plug 8 is opened after the mold 2 is closed, the aluminum alloy liquid in the holding furnace 9 is injected through the diversion groove 3, and the check plug is closed after the aluminum liquid in the pressure kettle 5 reaches the upper limit of the limited liquid level 8. Open the central plunger 11 at the same time, and inject compressed air into the autoclave 5 to implement the filling and pressure maintaining process of low-pressure casting. After the casting in the mold cavity is completely solidified, remove the pressure in the autoclave and empty the compressed air , open the mold and pick up the parts, and complete the entire low-pressure casting process.

[0016] Aluminum alloy low-pressure casting process device, the non-return plug 8 placed on the diversion groove 3 separates the low-pressure casting host 1 and the holding furnace 9, and can continuously add aluminum liquid to the holding furnace 9. Wh...

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Abstract

The invention relates to an aluminum alloy low-pressure casting device and a process method of the aluminum alloy low-pressure casting device. According to the aluminum alloy low-pressure casting device and the process method of the aluminum alloy low-pressure casting device, a liquid lifting pipe is omitted, compressed air is injected into a pressure kettle instead of an original heat preservation furnace, the usage amount of the compressed air is saved, and the production efficiency of the low-pressure casting process is improved; a check plug is used to separate the low-pressure casting from the heat preservation furnace, so that aluminum alloy liquid can be added to the heat preservation furnace in real time without interrupting the low-pressure casting process, in this way, defectiveproducts influenced by the temperature field changes caused by continuous casting process interruption can be reduced, and the casting process yield is increased.

Description

technical field [0001] The invention relates to an aluminum alloy low-pressure casting device and a process thereof. Background technique [0002] Low-pressure casting is the mainstream forming process in the aluminum wheel manufacturing industry. The traditional low-pressure casting process equipment uses dry compressed air in the holding furnace, which consumes a lot of gas and consumes a lot of electricity to heat the low-temperature compressed air in the furnace to maintain the temperature of the molten aluminum in the furnace. There is usually a connection between the mold and the molten aluminum in the furnace. The riser pipe is longer than 1 meter, and the material consumption, liquid rise and pressure release time are longer. Generally speaking, in the aluminum alloy die-casting industry where the technical threshold is not high, the production cost of traditional low-pressure casting process equipment is high. , can no longer adapt to the fierce competition environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/04B22D18/08
CPCB22D18/04B22D18/08B22D17/04
Inventor 杜德喜李昌海
Owner CITIC DICASTAL
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