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Refining agent for aluminum alloy as well as preparation method and refining process

An aluminum alloy and refining agent technology, applied in the field of purification and refining of aluminum and its alloys, can solve the problems of long time consumption, low impurity removal efficiency, and influence on the quality of aluminum ingots, so as to improve the ability of absorbing impurities, improve refining efficiency, The effect of shortening the refining time

Inactive Publication Date: 2018-07-31
湖北新金洋资源股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the implementation of the technical solution disclosed above, the impurity removal effect of the refining agent is not particularly ideal, the impurity removal efficiency is low, it takes a long time, and the impurity removal is not thorough, resulting in the quality of the final product aluminum ingot being affected

Method used

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  • Refining agent for aluminum alloy as well as preparation method and refining process
  • Refining agent for aluminum alloy as well as preparation method and refining process
  • Refining agent for aluminum alloy as well as preparation method and refining process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. The content of each component of the smokeless refining agent is as follows:

[0040]

[0041] The accelerator in this embodiment is magnesium laureth sulfate.

[0042] Two, the preparation method of this smokeless refining agent is:

[0043] S1: Pretreatment, mix potassium chloride, sodium fluorosilicate, sodium chloride, sodium tetrachloroaluminate and sodium sulfate of the above components, stir and heat to 250°C;

[0044] S2: Perform microwave treatment on the accelerator, and the temperature of microwave treatment is controlled at 170°C;

[0045] S3: After fully stirring and mixing the mixture obtained in S1 and the material obtained in S2, put it into a sintering furnace and sinter at 300-305°C;

[0046] S4: Pulverize the mixture obtained in S3 with a pulverizer, and granulate with a granulator to obtain a smokeless refining agent.

[0047] 3. The refining process of using the smokeless refining agent to refine aluminum materials is as follows:

[0048] ...

Embodiment 2

[0056] 1. The content of each component of the smokeless refining agent is as follows:

[0057]

[0058] The accelerator in this embodiment is magnesium laureth sulfate.

[0059] Two, the preparation method of this smokeless refining agent is:

[0060] S1: Pretreatment, mix potassium chloride, sodium fluorosilicate, sodium chloride, sodium tetrachloroaluminate and sodium sulfate of the above components, stir and heat to 260°C;

[0061] S2: Perform microwave treatment on the accelerator, and the temperature of microwave treatment is controlled at 150°C;

[0062] S3: After fully stirring and mixing the mixture obtained in S1 and the material obtained in S2, put it into a sintering furnace and sinter at 305-310°C;

[0063] S4: Pulverize the mixture obtained in S3 with a pulverizer, and granulate with a granulator to obtain a smokeless refining agent.

[0064] 3. The refining process of using the smokeless refining agent to refine aluminum materials is as follows:

[0065] Sa...

Embodiment 3

[0073] 1. The content of each component of the smokeless refining agent is as follows:

[0074]

[0075] The accelerator in this embodiment is sodium lauryl ether sulfate.

[0076] Two, the preparation method of this smokeless refining agent is:

[0077] S1: Pretreatment, mix potassium chloride, sodium fluorosilicate, sodium chloride, sodium tetrachloroaluminate and sodium sulfate of the above components, stir and heat to 270°C;

[0078] S2: Perform microwave treatment on the accelerator, and the temperature of microwave treatment is controlled at 180°C;

[0079] S3: After fully stirring and mixing the mixture obtained in S1 and the material obtained in S2, put it into a sintering furnace and sinter at 300-310°C;

[0080] S4: Pulverize the mixture obtained in S3 with a pulverizer, and granulate with a granulator to obtain a smokeless refining agent.

[0081] 3. The refining process of using the smokeless refining agent to refine aluminum materials is as follows:

[0082...

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Abstract

The invention relates to the technical field of aluminum and aluminum alloy purification and refining treatment, in particular to a refining agent for aluminum alloy as well as a preparation method and a refining process, and aims at removing impurities in molten aluminum in the aluminum alloy refining process so as to improve the product quality. The refining agent for the aluminum alloy comprises, by weight, 30-40 parts of potassium chloride, 15-30 parts of sodium chloride, 10-20 parts of sodium tetrachloroaluminate, 8-20 parts of sodium sulfate, 15-30 parts of sodium fluosilicate and 1-3 parts of accelerants. According to the refining process, the accelerants are added into the refining agent, and can promote decomposition of the sodium tetrachloroaluminate in the refining agent, and meanwhile, the interface tension between the refining agent and oxide inclusions is reduced, and therefore, the oxide inclusions can smoothly float on the liquid surface and then are removed, and the product quality is improved.

Description

technical field [0001] The invention relates to the technical field of purification and refining treatment of aluminum and its alloys, in particular to a refining agent for aluminum alloys, a preparation method and a refining process. Background technique [0002] In order to realize the full utilization of aluminum resources, there is an aluminum material production process that recovers aluminum waste products and reprocesses them to realize repeated reuse. However, recycled aluminum scrap is usually mixed with high alkali metal impurities such as sodium, calcium and lithium, non-metallic impurities, organic materials and moisture. These alkali metals, non-metallic slag inclusions and water vapor will have a serious impact on the casting and subsequent processing of aluminum and its alloys, which will eventually lead to damage to the quality of the produced aluminum ingots. Therefore, before pouring the aluminum waste, it is necessary to use a refining agent to purify and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C1/02C22C21/00
CPCC22C1/06C22C1/026C22C21/00
Inventor 龙在华陈精智周毅周强苏木阳
Owner 湖北新金洋资源股份公司
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