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Aluminum alloy vacuum lifting degassing device

A technology of aluminum alloy and gas device, applied in the fields of casting and experimental equipment

Inactive Publication Date: 2011-03-16
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to propose a non-polluting, economical and easy-to-operate lifting type stirring and degassing device to meet the needs of actual production.

Method used

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  • Aluminum alloy vacuum lifting degassing device
  • Aluminum alloy vacuum lifting degassing device
  • Aluminum alloy vacuum lifting degassing device

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] This embodiment is an aluminum alloy vacuum pulling degassing device.

[0018] Such as figure 1 , figure 2 As shown, the aluminum alloy vacuum degassing device includes a vacuum pump 1, a vacuum gauge 2, a vacuum buffer tank 3, 1# electromagnetic stop valve 4, 2# electromagnetic stop valve 5, a lifting vacuum degasser 6, a sealed septum Plate 7, crucible 8, "O" type high temperature resistant sealing ring 14, heat insulation guide sleeve 15. Wherein, the vacuum pump 1 is connected with the vacuum buffer tank 3 and the lower tank of the equipment by using a seamless steel pipe. The front end pipeline of the vacuum pump 1 is provided with a vacuum gauge 2, which can detect the pressure value in the pipeline in real time. Between the vacuum pump 1 and the vacuum buffer tank 3, and between the vacuum pump 1 and the lower tank where the melting and holding furnace is installed, 1# electromagnetic cut-off valve 4 and 2# electromagnetic cut-off valve 5 are respectively arr...

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Abstract

The invention relates to an aluminum alloy vacuum lifting degassing device, which comprises a vacuum pump, a lifting vacuum degassing machine, a vacuum buffer tank, a sealed middle partition plate and an equipment lower tank. When the alloy liquid is fully smelted, the middle partition plate is placed on the lower tank, and the lifting vacuum degassing machine is placed on the middle partition plate. The vacuum pump is started to evacuate the lower tank. The metal liquid in a crucible is stirred by vertical lifting of the lifting vacuum degassing machine, and the gas dissolved by the alloy liquid is automatically separated and diffused under the action of negative pressure so as to reduce the gas content of the alloy liquid, improve the quality of the alloy liquid and improve the quality of castings. The device is a furnace front alloy liquid degassing and purifying treatment device suitable for anti-gravity casting comprising low-pressure casting, differential pressure casting and pressure adjustable casting, has simple structure, is easy to operate, has no environmental pollution, and meets the requirement of actual production.

Description

technical field [0001] The invention relates to a vacuum degassing device for anti-gravity casting, in particular to a vacuum lifting and degassing device for aluminum alloy, which belongs to the field of casting and experimental equipment. Background technique [0002] The purification treatment of aluminum alloy melt is a very important link in the production process of aluminum alloy. It mainly removes hydrogen and various oxidized inclusions in the aluminum alloy melt, and avoids pores, shrinkage porosity, non Defects such as metal inclusions. Degassing refers to the removal of dissolved hydrogen in the aluminum alloy melt. [0003] At present, the more commonly used aluminum alloy degassing methods are as follows: (1). Using a degassing agent, the gas that is insoluble in the molten aluminum is generated by the reaction of the degassing agent with the molten aluminum, and these gases will melt the molten aluminum during the floating process The hydrogen in the molten ...

Claims

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Application Information

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IPC IPC(8): C22B9/04C22B21/06
Inventor 李强郝启堂介万奇李新雷
Owner NORTHWESTERN POLYTECHNICAL UNIV
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