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A kind of preparation device and method of aluminum foam with good foam uniformity

A preparation device and uniformity technology, which is applied in the field of foamed aluminum preparation devices, can solve problems such as edge pore deformation, and achieve the effects of improving flow, reducing production costs, improving performance and product production efficiency

Active Publication Date: 2020-09-11
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a device and a preparation method that can solve the problem of severe deformation of the edge pores during the production of foamed aluminum. Through the interaction of the alternating magnetic field and the induced current in the foamed aluminum, the foamed aluminum pointing perpendicular to the mold wall is produced. The electromagnetic pressure in the center of the melt reduces the friction between the foamed aluminum and the mold wall, and the foamed aluminum flows smoothly, thereby obtaining foamed aluminum or foamed aluminum alloy products with good foam uniformity

Method used

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  • A kind of preparation device and method of aluminum foam with good foam uniformity

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Embodiment 1

[0028] Such as figure 1 As shown, the present invention provides a preparation device for aluminum foam with good foam uniformity, comprising a reactor shell 8, a coil device 6, and a mold 5, and the reactor shell 8 and the mold 5 are both top open structures , the inner wall of the reactor housing 8 is equipped with a mold 5, the coil device 6 is embedded in the side wall of the reactor housing 8, the coil device 6 is used to generate an alternating electric field, and the bottom of the inner wall of the reactor housing 8 is equipped with a mold for adjusting 5 inner cavity temperature temperature control device 7, the inner cavity of the mold 5 is provided with a mixing agitator 2 which can be raised and lowered, and the mixing agitator 2 is provided with a supply channel for injecting the gas-solid mixture into the inner cavity of the mold 5.

[0029] Specifically, the rotating shaft of the mixing agitator 2 is hollow, and as a part of the supply channel, the upper part of ...

Embodiment 2

[0046] The invention provides a preparation device for aluminum foam with good foam uniformity, comprising a reactor shell 8, a coil device 6, and a mold 5, both of the reactor shell 8 and the mold 5 are top open structures, and the reactor The inner wall of the housing 8 is equipped with a mold 5, and the coil device 6 is embedded in the side wall of the reactor housing 8. The coil device 6 is used to generate an alternating electric field, and the bottom of the inner wall of the reactor housing 8 is equipped with a mold for adjusting the inner cavity of the mold 5. The temperature control device 7, the inner cavity of the mold 5 is provided with a liftable mixing agitator 2, and the mixing agitator 2 is provided with a supply channel for injecting the gas-solid mixture into the inner cavity of the mold 5.

[0047] Specifically, the rotating shaft of the mixing agitator 2 is hollow, and as a part of the supply channel, the upper part of the rotating shaft communicates with a f...

Embodiment 3

[0062] Such as figure 1 As shown, the present invention provides a preparation device for aluminum foam with good foam uniformity, comprising a reactor shell 8, a coil device 6, and a mold 5, and the reactor shell 8 and the mold 5 are both top open structures , the inner wall of the reactor housing 8 is equipped with a mold 5, the coil device 6 is embedded in the side wall of the reactor housing 8, the coil device 6 is used to generate an alternating electric field, and the bottom of the inner wall of the reactor housing 8 is equipped with a mold for adjusting 5 inner cavity temperature temperature control device 7, the inner cavity of the mold 5 is provided with a mixing agitator 2 which can be raised and lowered, and the mixing agitator 2 is provided with a supply channel for injecting the gas-solid mixture into the inner cavity of the mold 5.

[0063] Specifically, the rotating shaft of the mixing agitator 2 is hollow, and as a part of the supply channel, the upper part of ...

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Abstract

The invention belongs to the technical field of porous metal foam materials and discloses a device and method for preparing aluminum foam with good foam uniformity. The device includes a reactor shell, a coil device and a mold. The reactor shell and the mold are both It has a top opening structure. The mold is detachably assembled inside the reactor shell. The coil device is embedded in the side wall of the reactor shell. The bottom of the inner wall of the reactor shell is equipped with a temperature control for adjusting the temperature of the mold cavity. Device, the inner cavity of the mold is provided with a lifting mixing stirrer, and the mixing stirrer is provided with a supply channel for injecting the gas-solid mixture into the inner cavity of the mold. The present invention uses an alternating magnetic field to interact with the induced current in the aluminum foam, The electromagnetic pressure is generated perpendicular to the mold wall and directed toward the center of the aluminum foam melt, which reduces the friction between the foam aluminum and the mold wall, allowing the aluminum foam to flow smoothly, thereby obtaining aluminum foam or aluminum foam alloy products with good foam uniformity.

Description

technical field [0001] The invention belongs to the technical field of porous metal foam materials, and in particular relates to a preparation device and method of aluminum foam with good foam uniformity. Background technique [0002] Aluminum foam is a porous metal material based on pure aluminum or aluminum alloy. It has many excellent properties, such as sound absorption and sound insulation, high porosity, good energy absorption performance, good electromagnetic shielding performance, and good damping and shock absorption performance. It is widely used in aerospace, transportation, electronic communication, construction machinery and other fields, and its research has become one of the important research contents in the field of materials science and technology at home and abroad. The current relatively mature methods for preparing foamed aluminum are powder metallurgy, air blowing foaming and direct melt foaming. Among them, the powder metallurgy method is a method for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/08C22C21/00B22D27/02
Inventor 耿佃桥郝奇祖国胤
Owner NORTHEASTERN UNIV LIAONING