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A kind of magnesium alloy melt refining method

A magnesium alloy and melt technology, applied in the field of magnesium alloy melt refining, can solve the problems of large flux amount, large bubble size, uneven distribution, etc. The effect of efficiency

Active Publication Date: 2016-03-02
中天时代镁业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the industrial smelting of magnesium alloys mainly adopts flux refining method, filter filtration method and gas blowing method to achieve purification, but basically they are operated manually or with simple tools, so the amount of flux used in flux refining Relatively large, the pollution is also relatively large, and it is easy to produce flux inclusions; when the blowing method is used, the gas consumption is large and the cost is high
The bubbles generated by the blowing method are larger in size and faster in floating speed, which requires a longer degassing time, and the distribution in each area of ​​the melt is uneven and cannot fully contact with the entire melt, and the degassing efficiency is low; The French filter is easy to react with the chemically active magnesium melt, so it cannot be used for a long time

Method used

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  • A kind of magnesium alloy melt refining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Put 5kg of ordinary commercially purchased AZ91 magnesium alloy into the heat preservation container for melting, and after melting, keep it at 678°C for 8 minutes (conventional treatment method); Insert the hollow tool head of the inert gas into the magnesium alloy melt in the heat preservation container; start the flux quantitative supply system after adjusting the gas flow and pressure, and quickly adjust the flux quantitative setting control device; start the high-intensity sound cavitation system, set the sound Cavitation frequency and power, the system modulates the resonance state to process the alloy melt for a period of time; after the treatment of the magnesium alloy melt, first turn off the high-intensity acoustic cavitation system and then turn off the flux quantitative supply system, and then quickly insert the magnesium alloy into the melt The hollow tool head is removed and finally the inert gas supply system is turned off.

[0036]The relevant parameters...

Embodiment 2

[0039] Put 10kg of ordinary commercially purchased AZ91 magnesium alloy into the heat preservation container for melting, and after melting, keep it at 693°C for 15 minutes (conventional treatment method); Insert the hollow tool head of the inert gas into the magnesium alloy melt in the heat preservation container; start the flux quantitative supply system after adjusting the gas flow and pressure, and quickly adjust the flux quantitative setting control device; start the high-intensity sound cavitation system, set the sound Cavitation frequency and power, the system modulates the resonance state to process the alloy melt for a period of time; after the treatment of the magnesium alloy melt, first turn off the high-intensity acoustic cavitation system and then turn off the flux quantitative supply system, and then quickly insert the magnesium alloy into the melt The hollow tool head is removed and finally the inert gas supply system is turned off.

[0040] The relevant paramet...

Embodiment 3

[0043] Put 20kg of ordinary commercially purchased AZ80 magnesium alloy into the heat preservation container for melting, and after melting, keep it at 687°C for 15 minutes (conventional treatment method); Insert the hollow tool head of the inert gas into the magnesium alloy melt in the heat preservation container; start the flux quantitative supply system after adjusting the gas flow and pressure, and quickly adjust the flux quantitative setting control device; start the high-intensity sound cavitation system, set the sound Cavitation frequency and power, the system modulates the resonance state to process the alloy melt for a period of time; after the treatment of the magnesium alloy melt, first turn off the high-intensity acoustic cavitation system and then turn off the flux quantitative supply system, and then quickly insert the magnesium alloy into the melt The hollow tool head is removed and finally the inert gas supply system is turned off.

[0044] The relevant paramet...

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Abstract

The invention relates to a magnesium alloy melt refining method and belongs to the technical field of alloy melt processing. The method includes the following steps: melting a magnesium alloy billet; inserting a hollow tool head filled with inert gas into the magnesium alloy melt in a heat preservation container; starting a high-intensity acoustic cavitation system to process the alloy melt.

Description

technical field [0001] The invention belongs to the technical field of metal materials and metallurgy, and in particular relates to a magnesium alloy melt refining method. Background technique [0002] Magnesium alloys are widely used in automobiles, communication equipment and It has broad application prospects in the electronics industry. However, due to the chemical properties of magnesium alloys and their liveliness, the affinity between magnesium and oxygen is much higher than that between aluminum and oxygen. During the melting process of magnesium alloys, it is very easy to chemically react with oxygen, nitrogen, and water vapor, resulting in a large number of inclusions. Magnesium The content of inclusions during smelting is as high as about 20 times that of aluminum alloy. In addition, due to the great solubility of hydrogen in magnesium alloy melts, the solubility of hydrogen in magnesium melts is two orders of magnitude larger than that in aluminum melts, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22B9/05C22B9/02C22B9/00C22C23/00
CPCY02P10/20
Inventor 张志强刘轩乐启炽宝磊崔建忠
Owner 中天时代镁业有限公司
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