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Refining method of aluminum-magnesium-series cast aluminum alloy material

A technology for casting aluminum alloy and aluminum magnesium, which is applied in the field of metal materials, can solve the problems of not being able to meet the needs of large-scale alloy production, and has not found any published patent documents, etc., and achieves guaranteed yield, reduced oxidative combustion, and low magnesium burning loss rate Effect

Active Publication Date: 2015-05-20
天津新立中合金集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Although there are many protective methods for aluminum-magnesium alloy smelting, they all have many defects and cannot meet the needs of large-scale alloy production.
[0010] Through searching, no published patent documents related to this patent application have been found

Method used

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  • Refining method of aluminum-magnesium-series cast aluminum alloy material
  • Refining method of aluminum-magnesium-series cast aluminum alloy material

Examples

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Embodiment 1

[0043] A method for refining aluminum-magnesium cast aluminum alloy materials. The LZ.AlMg9 alloy is prepared in this example. The steps are as follows:

[0044] (1) The total ingredients are 80Kg, according to the requirements of the alloy composition (Si: 1.0-1.5; Mg: 8.0-10.5; Al is the balance), weigh the required amount of metal magnesium 7.76Kg, metal silicon 1Kg, remelted aluminum ingot 71.24Kg, And preheat all materials.

[0045] (2) Weigh 0.12Kg of high-magnesium aluminum alloy HGF-1 refining agent, weigh 0.14Kg of XH-2 covering agent for aluminum-magnesium alloys, and dry all the weighed fluxes.

[0046] (3) Sequentially add the remelted aluminum ingots and metal silicon preheated in step (1) into the industrial electric furnace, and heat up together with the furnace body.

[0047] (4) After heating and melting, stir the melt evenly, adjust the melt temperature to 755°C, and press the weighed metal magnesium into the bottom of the molten aluminum until it is complet...

Embodiment 2

[0053] A method for refining aluminum-magnesium cast aluminum alloy materials. In this embodiment, LHM.GIBBS alloy is prepared. The steps are as follows:

[0054]⑴The total batching is 80Kg, according to the requirements of the alloy composition (Si: 0.2~0.3; Mg: 2.6~3.7; Fe: 0.2~0.5; Mn: 0.6~0.75; Ti: 0.03~0.07; Al is the balance) to weigh the required The amount of magnesium metal is 2.8Kg, silicon metal is 0.2Kg, aluminum-iron master alloy is 3.2Kg, aluminum-manganese master alloy is 5.6Kg, aluminum-titanium master alloy is 0.4Kg, and remelted aluminum ingot is 67.8Kg. And preheat all materials.

[0055] (2) Weigh 0.10Kg of high-magnesium aluminum alloy HGF-1 refining agent, weigh 0.12Kg of XH-2 covering agent for aluminum-magnesium alloys, and dry all the weighed fluxes.

[0056] (3) Sequentially add the remelted aluminum ingots and metal silicon preheated in step (1) into the industrial electric furnace, and heat up together with the furnace body.

[0057] (4) After hea...

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Abstract

The invention relates to a refining method of an aluminum-magnesium-series cast aluminum alloy material. In the method, a novel covering agent is selected for performing surface protection on an aluminum-magnesium-series alloy in a smelting process, a refining agent special for a magnesium-aluminum alloy is prepared simultaneously for refining a melt, and the smelting temperature and the pouring temperature are controlled, so that an aluminum-magnesium-series cast aluminum alloy with higher performance and a low magnesium burnout rate is obtained. According to the method, the novel covering agent and the special refining agent are applied for smelting an Al-Mg-series alloy (the content of Mg is 3-10 percent) under the control of a specific production process, so that the burnout of magnesium is controlled effectively, the production cost is saved, the cleanliness of the alloy is enhanced, and the porosity of the alloy is lowered.

Description

technical field [0001] The invention belongs to the field of metal materials, in particular to a method for refining aluminum-magnesium cast aluminum alloy materials. Background technique [0002] Aluminum-magnesium alloy is a widely used alloy. It is the alloy with the smallest specific gravity and the strongest corrosion resistance among the existing aluminum alloys. It is an alloy that can have a certain strength and good toughness without heat treatment. During the smelting process of aluminum-magnesium alloys, due to the active chemical properties of magnesium, the oxidation and burning of the alloys are very serious, which not only reduces the actual yield of magnesium in the alloys, but also causes huge economic losses. Therefore, the solution to aluminum-magnesium alloys The oxidative combustion of Al-Mg alloys is one of the keys to the large-scale application of Al-Mg alloys in the future. [0003] The oxidation resistance of metals depends on the ability of the su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/06C22C21/06
Inventor 翟盼盼艾振海刘忠郭强杨少云
Owner 天津新立中合金集团有限公司
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