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Aluminium alloy casting device

An aluminum alloy, high-temperature technology, applied in the field of metal casting equipment, can solve the problems of high casting cost, long casting cycle, increased casting cost, etc., and achieve the effect of simple operation process, fast casting and smooth casting

Inactive Publication Date: 2012-12-26
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has the following disadvantages: the pressure regulation method is complicated and the casting cost is high
This process requires comprehensive and strict management of temperature and pressure. The casting process control is realized by continuously adjusting the pressure control device in the furnace. The pressure regulation method in the operation process is complicated, and the casting cycle is long and the productivity is poor, resulting in a corresponding increase in casting costs.

Method used

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  • Aluminium alloy casting device

Examples

Experimental program
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Effect test

Embodiment 1

[0012] The present invention selects the metal shell and the insulating asbestos material as the high-temperature atmospheric furnace body 1, and the crucible 3 made of corundum is placed in the high-temperature atmospheric furnace body 1. Add the 6063 aluminum alloy ingredients into the crucible 3, and heat up to 660°C. The riser pipe 5 adopts a corundum ceramic tube with a pipe diameter of 1 cm. The end of the riser pipe 5 facing the mouth of the crucible 3 is immersed in the aluminum alloy melt above the bottom of the crucible 3, and the horizontal part of the riser pipe 5 is kept away from the aluminum alloy. The distance between the liquid surface of the alloy melt 4 is less than 3 cm, and the other end of the riser pipe 5 is airtight and seamlessly communicated with the upper end of the cavity 8 through a ceramic valve 7 . The lower end of the cavity 8 is airtightly and seamlessly connected with the vacuum pump 10 through the ceramic valve 29, and the vacuum pump 10 is u...

Embodiment 2

[0014] The present invention selects the metal shell and the insulating asbestos material as the high-temperature atmospheric furnace body 1, and the crucible 3 made of corundum is placed in the high-temperature atmospheric furnace body 1. Add the 7075 aluminum alloy ingredients into the crucible 3, and heat up to 670°C. The riser pipe 5 adopts a corundum ceramic tube with a pipe diameter of 1.5 cm. The end of the riser pipe 5 facing the mouth of the crucible 3 is immersed in the aluminum alloy melt at the position above the bottom of the crucible 3. At the same time, the distance between the horizontal part of the riser pipe 5 The distance between the liquid surfaces of the aluminum alloy melt 4 is less than 2 cm, and the other end of the riser pipe 5 is airtight and seamlessly communicated with the upper end of the cavity 8 through a ceramic valve 7 . The lower end of the cavity 8 is airtightly and seamlessly connected with the vacuum pump 10 through the ceramic valve 29, an...

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Abstract

The invention provides an aluminium alloy casting device. High-temperature atmospheric furnace heating electric resistance wires surround a high-temperature atmospheric furnace body; a crucible is arranged in the high-temperature atmospheric furnace body with the opening upward; aluminum or aluminium alloy is arranged in the crucible; one end of a stalk is introduced into the bottom of the crucible from the opening of the high-temperature atmospheric furnace body; the other end of the stalk is in air-tight seamless connection with the upper end of a cavity via a valve; stalk heating resistance wires surround the part of the stalk, which is out of the high-temperature atmospheric furnace body; the lower end of the cavity is in air-tight seamless connection with a vacuum pump via a second valve; and a first valve and the second valve are both lower than the bottom of the crucible. According to the aluminium alloy casting device disclosed by the invention, the stable casting of aluminium alloy melting liquid is realized, and temperature and pressure do not need to be strictly controlled. In addition, the casting device has the advantages of simple structure and convenient working process and operation technology. Due to the fact that the aluminium alloy casting device is free from a furnace pressure control and regulation device, the low cost and quick casting of the aluminium alloy can be realized without carrying out complex pressure regulation.

Description

technical field [0001] The invention relates to the technical field of metal casting equipment, in particular to a device for realizing convenient and low-cost casting of aluminum and aluminum alloys by utilizing the pressure difference generated by the siphon principle. Background technique [0002] The patent [ZL 201010154633.X sand mold low-pressure casting process for cast aluminum parts] discloses a casting process for aluminum alloys, which is currently a commonly used low-pressure casting process for aluminum alloys. This process has the following disadvantages: the pressure regulation method is complicated and the casting cost is high. This process requires comprehensive and strict management of temperature and pressure. The casting process control is realized by continuously adjusting the pressure control device in the furnace. The pressure regulation method in the operation process is complicated, and the casting cycle is long and the productivity is poor, resultin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/00B22D21/04
Inventor 唐波
Owner NORTHWESTERN POLYTECHNICAL UNIV
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