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Method for smelting aluminium alloy doped with magnesium element

A magnesium and aluminum alloy technology, applied in the field of aluminum alloy smelting, can solve the problems of poor electrical conductivity, thermal conductivity and corrosion resistance of finished products, high proportion of oxidized impurities, affecting the performance of alloy castings, etc. The effect of oxide reduction and yield improvement

Active Publication Date: 2013-02-13
安徽昕悦铸造科技有限公司
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AI Technical Summary

Problems solved by technology

[0002]There are deficiencies in the traditional aluminum alloy manufacturing method: the electrical conductivity, thermal conductivity and corrosion resistance of the finished product are not strong, and the porosity in the produced alloy casting If the ratio is too high, there will be many pores on the surface of the casting, and the proportion of oxide impurities is also high, which affects the performance of the alloy casting

Method used

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Embodiment 1

[0021] A method for smelting an aluminum alloy doped with magnesium, comprising the following preparation steps:

[0022] 1. A method for smelting an aluminum alloy doped with magnesium, characterized in that it comprises the following preparation steps:

[0023] (1) Put the discarded aluminum product charge into the melting furnace, and when the temperature rises until the charge begins to soften and slump, sprinkle a layer of covering agent on the metal surface; when the charge is partially melted, add high-purity zinc ingots to the liquid For copper ingots, when the furnace charge is completely melted, the melt should be properly stirred to make the temperature in the molten pool uniform and uniform, and it is also conducive to accelerated melting;

[0024] (2) Slagging and stirring: After slagging off, add magnesium ingots into the melt, and at the same time sprinkle a layer of covering agent with a weight of 0.1-0.3% of magnesium. The covering agent is a ratio of 1:1 of n...

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Abstract

The invention discloses a method for smelting aluminium alloy doped with magnesium element, which is characterized by comprising the following preparation steps of: (1) adding lots of discarded aluminium-product furnace charge in a smelting furnace, heating up until the furnace charge starts to soften and fall down, and sprinkling a layer of covering agent on metallic surfaces to cover; (2) slagging off and stirring; (3) adjusting ingredients; (4) refining; (5) discharging; and (6) cleaning. Via the refining treatment aforementioned, high-quality aluminium alloy smelting solution is obtained. In the case that the aluminium alloy smelting solution is used for casting production, the rate of finished products is obviously increased; in particular, the rate of pores in castings is reduced by 1-2% and effectively controlled, so that pores cannot be generated on the surfaces of the castings; the oxide inclusions are obviously reduced and are about at two-level; and the mechanical property of the castings is obviously improved.

Description

technical field [0001] The invention mainly relates to an aluminum alloy smelting method, in particular to an aluminum alloy smelting method doped with magnesium. Background technique [0002] There are deficiencies in the traditional aluminum alloy manufacturing method: the electrical conductivity, thermal conductivity, and corrosion resistance of the finished product are not strong, and the porosity in the produced alloy casting is relatively high, and many pores will be generated on the surface of the casting, and the oxide debris The ratio is also high, which affects the performance of alloy castings. Contents of the invention [0003] The purpose of the present invention is to provide a method for smelting an aluminum alloy doped with magnesium in order to remedy the defects of the prior art. [0004] The present invention is achieved through the following technical solutions: [0005] A method for smelting an aluminum alloy doped with magnesium, comprising the foll...

Claims

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Application Information

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IPC IPC(8): C22C1/06C22C21/00C22C21/06
Inventor 吴文雅
Owner 安徽昕悦铸造科技有限公司
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