Refining apparatus and technology of pressure casting aluminium product

A refining device and product technology, applied in the field of casting and die-casting aluminum product refining devices, can solve the problems of poor refining effect, secondary absorption of hydrogen oxidation by aluminum liquid, etc., and achieve the effects of reducing crucible loss, high hydrogen removal rate, and improving product quality.

Active Publication Date: 2013-11-20
FUAN GUANGYUAN ELECTROMECHANICAL
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Problems solved by technology

[0008] The present invention solves the problem that the refining effect of the above-mentioned existing refining process is poor and the aluminum liquid is easily subjected to secondary hydrogen absorp

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  • Refining apparatus and technology of pressure casting aluminium product

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 As shown, a refining device for cast aluminum products includes a melting furnace 1 and a closed holding furnace 2. The melting furnace 1 is provided with a stirring shaft 11 that can be lifted and lowered and a stirring blade 111 that is sleeved on the stirring shaft 11. The stirring The rotating shaft 11 is provided with a central through hole for feeding inert gas. The melting furnace 1 is connected to the airtight holding furnace 2 through the feeding pipe 21. The holding furnace 2 is provided with a drain pipe 22. The refining device also A vacuum pump 3 is included, and the holding furnace communicates with the vacuum pump 3 through a vacuum pipeline 23 .

[0034] The melting furnace 1 can be located at the height of the closed holding furnace 2 to increase the potential energy of the molten aluminum. Th...

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Abstract

The invention provides a refining apparatus of a pressure casting aluminium product. The refining apparatus comprises a melting furnace and a closed holding furnace; a height adjustable stirring shaft and stirring blades arranged on the stirring shaft are arranged above the melting furnace; a through hole used for delivering inert gas is arranged in the stirring shaft; the melting furnace is connected to the closed holding furnace by a feed delivery pipe; the closed holding furnace is provided with bleeder pipe; the refining apparatus also comprises a vacuum pump; and the closed holding furnace is connected to the vacuum pump by a vacuum pipeline. The invention also provides a refining technology of the pressure casting aluminium product. The refining technology is capable of avoiding secondary hydrogen adsorption and oxidation of refined molten aluminum in delivery process, reducing pores and impurities of the pressure casting aluminium product, and improving the quality of the pressure casting aluminium product greatly in the whole delivery process comprising melting of aluminum ingots, hydrogen removing treatment and heat preservation process. Application prospect of the technology is promising.

Description

technical field [0001] The invention relates to a casting die-casting aluminum product refining device and its technology. Background technique [0002] Cast aluminum alloy is widely used in various fields such as aerospace, automobile, machinery and electronics due to its advantages of low density, high specific strength, good plasticity, good electrical and thermal conductivity and easy processing. However, the cast aluminum alloy may cause a series of defects in the casting during the smelting process, such as pinholes, pores, slag inclusions, etc. Therefore, how to improve the quality of smelting has always been a problem that needs to be considered in the actual production of castings. The inclusions of cast aluminum alloy in smelting are mainly hydrogen and aluminum oxide. If the refining process is improper, the continuity and compactness of aluminum castings will be damaged, which will inevitably reduce the performance of castings. [0003] There are many methods f...

Claims

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Application Information

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IPC IPC(8): C22B9/05C22B9/04B22D1/00
Inventor 郭自刚
Owner FUAN GUANGYUAN ELECTROMECHANICAL
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