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Aluminum liquid online degassing device

A technology of gas device and molten aluminum, applied in the field of on-line degassing device of molten aluminum, can solve the problems of high price and easy damage of graphite rotor, and achieve the effects of no maintenance, cost saving and long service life.

Pending Publication Date: 2020-06-26
苏州中联众信热能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This graphite rotor is often easily damaged and expensive, so it is imperative to develop a new online degassing device

Method used

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  • Aluminum liquid online degassing device
  • Aluminum liquid online degassing device

Examples

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Embodiment 1

[0021] see figure 1 and figure 2 , as shown in the legend therein, an aluminum liquid online degassing device includes a degassing unit 100 and a gas distribution unit 200, the degassing unit 100 includes a degassing box, and the degassing box is an incubator, which includes a box body 110 and The box cover 120, the box body 110 is provided with the aluminum inlet 111 and the aluminum outlet 112 higher than its internal aluminum liquid level, and the box body 110 is also provided with the air inlet lower than its internal aluminum liquid level, the inlet The gas inlet is provided with a ventilation brick 113, and the gas distribution unit 200 communicates with the gas inlet.

[0022] In a preferred implementation of this embodiment, the aluminum inlet 111 and the aluminum outlet 112 are arranged on the side wall of the box body 110 , and the air inlet is arranged on the bottom wall of the box body 110 .

[0023] In a preferred implementation of this embodiment, the gas dist...

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Abstract

The invention discloses an aluminum liquid online degassing device. The degassing device comprises a degassing unit and a gas distribution unit. The degassing unit comprises a degassing box which is aheat preservation box and comprises a box body and a box cover. The box body is provided with an aluminum inlet and an aluminum outlet which are higher than the liquid level of aluminum liquid in thebox body. The box body is further provided with a gas inlet lower than the liquid level of the aluminum liquid in the box body, the gas inlet is provided with air bricks, and the gas distribution unit communicates with the gas inlet. According to the aluminum liquid online degassing device, the degassing box is provided with the gas inlet lower than the liquid level of the aluminum liquid in thebox body, the gas inlet is provided with the air bricks, under the condition that gas is introduced, the aluminum liquid cannot leak, and meanwhile, the aluminum liquid can make full contact with thegas in the aluminum liquid. The device is simple in structure, unique in design, good in degassing effect and long in service life. A mechanical transmission device is not arranged, maintenance is notneeded, spare parts are not needed, and the use cost can be reduced. Meanwhile, the flow of the introduced gas can be controlled.

Description

technical field [0001] The invention relates to the field of degassing, in particular to an online degassing device for molten aluminum. Background technique [0002] The solubility of hydrogen in aluminum increases with temperature. When liquid aluminum and solid aluminum coexist, the solubility of hydrogen in solid aluminum is only 1 / 20 of that in liquid aluminum at the same temperature. Therefore, when the liquid aluminum solidifies, if the hydrogen has no time to escape, a large amount of hydrogen will be generated in the casting. Defects such as air holes and pores will form line bands during the rolling process of castings, making the finished product and plate loose, reducing air tightness and reducing strength and toughness, causing serious consequences and hidden dangers. [0003] The degassing device currently used is a graphite rotor degassing device. The graphite rotor is placed in the aluminum liquid, and N2, Ar2 or Cl2 is passed through the hole in the middle ...

Claims

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Application Information

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IPC IPC(8): C22B9/05C22B21/06
CPCC22B9/05C22B21/064
Inventor 刘敏刘瑞国
Owner 苏州中联众信热能科技有限公司
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