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Aluminium alloy material containing iron complex purification and preparation method thereof

A technology for aluminum alloy materials and complexes, applied in the field of aluminum alloy materials and their preparation, can solve the problem of high gas content in molten aluminum, and achieve the effect of sufficient refinement and purification

Inactive Publication Date: 2013-06-05
贵州铝厂有限责任公司
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Problems solved by technology

[0004] Provide an aluminum alloy material purified by an iron-containing complex and a preparation method thereof, in order to solve the porosity problem caused by the high gas content of molten aluminum and the degassing and intermediate alloy used as a purifying agent in the conventional situation during the casting process of the aluminum alloy. bring about problems

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  • Aluminium alloy material containing iron complex purification and preparation method thereof

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Embodiment Construction

[0022] Step 1: Select the formula of each element and substance according to the table below, and calculate the weight of each substance required based on the total amount of alloy prepared is 1000kg.

[0023]

[0024] And select sufficient materials according to the ingredient list;

[0025] Step 2: Add aluminum ingots or molten aluminum into the melting furnace, heat it to melt it completely and keep it warm at 700-800°C; the melting process is completed in a closed environment;

[0026] Step 3: Add the alloy elements selected in Step 1 according to the proportion of the formula to completely dissolve and melt them, and stir the mixed melt evenly;

[0027] Step 4: Refining the above alloy melt in a furnace; adding a refining agent to the alloy melt and stirring evenly, and the melt refining is operated in a closed environment;

[0028] Step 5: After refining and removing slag, degas the melt with a protective gas, and at the same time add the iron complex purifier to the...

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Abstract

The invention discloses an aluminium alloy material containing iron complex purification. By mass percent, the component of the alloy is that Cu is less than or equals to 0.001%, Si is smaller than or equals to0.03% and Fe is smaller than or equals to 0.03%. The remaining are Al and unavoidable microscale impurities. The content of the impurities is smaller than or equals to 0.005%. A refining agent containing the manganese complex is 1ppm-0.05% of furnace material gross quantity. The air hole problem caused by caused by the fact that gas content is high in the aluminium alloy casting process is solved. The problem that a cleaning agent is added by a middle alloy under the normal condition is solved.

Description

technical field [0001] The invention relates to an aluminum alloy material and its preparation, in particular to an aluminum alloy material using an iron-containing complex as a purifying agent and its preparation. Background technique [0002] In the process of aluminum alloy melting and casting, aluminum castings and aluminum alloys are easy to absorb gas, which is the main characteristic of cast aluminum alloys. The hydrogen gas produced by the reaction between the components of liquid aluminum and aluminum alloys and the moisture contained in the charge, organic combustion products, and molds is absorbed by the aluminum liquid. The higher the temperature of the aluminum alloy melt, the more hydrogen it absorbs; at 700°C, the solubility of hydrogen per 100g of aluminum is 0.5-0.9, and when the temperature rises to 850°C, the solubility of hydrogen increases by 2-3 times. When containing alkali metal impurities, the solubility of hydrogen in molten aluminum increases sign...

Claims

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Application Information

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IPC IPC(8): C22C1/06C22C21/00
Inventor 车云门三泉陈凯
Owner 贵州铝厂有限责任公司
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