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Aluminum-silicon alloy refining agent produced by electrothermal method and preparation method thereof

An aluminum-silicon alloy and refining agent technology, which is applied in the field of aluminum-silicon alloy casting, can solve problems such as product scrapping, pores and oxide inclusions, and the quality of aluminum-silicon alloy products cannot be guaranteed, so as to improve quality and reduce the content of impurities , easy to promote and implement

Active Publication Date: 2016-04-06
登封电厂集团铝合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aluminum-silicon alloy produced by the electrothermal method contains many impurities. If the impurities are not removed in time, pores and oxide inclusions will appear on the surface of the aluminum-silicon alloy, so that the quality of the aluminum-silicon alloy product cannot be guaranteed, and sometimes even will result in the scrapping of the product

Method used

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  • Aluminum-silicon alloy refining agent produced by electrothermal method and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The aluminum-silicon alloy refining agent produced by the electrothermal method provided in this example is made of the following raw materials in percentage by weight: NaCl55%, NaAlF 6 35%, KCl5%, MgCl 2 5%.

[0020] The preparation method of the aluminum-silicon alloy refining agent produced by the electrothermal method provided in this embodiment comprises the following steps:

[0021] (1) Heat and dry NaCl to reduce the moisture content of NaCl to 1%;

[0022] (2) Weigh the following raw materials by weight percentage: NaCl55%, NaAlF 6 35%, KCl5%, MgCl 2 5%, mix all ingredients and stir well;

[0023] (3) Pack the evenly stirred raw materials in one bag per 5kg, and store them in a dry environment.

Embodiment 2

[0025] The aluminum-silicon alloy refining agent produced by the electrothermal method provided in this example is made of the following raw materials in percentage by weight: NaCl70%, NaAlF 6 20%, KCl5%, MgCl 2 5%.

[0026] The preparation method of the aluminum-silicon alloy refining agent produced by the electrothermal method provided in this embodiment comprises the following steps:

[0027] (1) Heat and dry NaCl to reduce the moisture content of NaCl to 1%;

[0028] (2) Weigh the following raw materials by weight percentage: NaCl70%, NaAlF 6 20%, KCl5%, MgCl 2 5%, mix all ingredients and stir well;

[0029] (3) Pack the evenly stirred raw materials in one bag per 5kg, and store them in a dry environment.

Embodiment 3

[0031] The aluminum-silicon alloy refining agent produced by the electrothermal method provided in this example is made of the following raw materials in percentage by weight: NaCl65%, NaAlF 6 27%, KCl3%, MgCl 2 5%.

[0032] The preparation method of the aluminum-silicon alloy refining agent produced by the electrothermal method provided in this embodiment comprises the following steps:

[0033] (1) Heat and dry NaCl to reduce the moisture content of NaCl to 1%;

[0034] (2) Weigh the following raw materials by weight percentage: NaCl65%, NaAlF 6 27%, KCl3%, MgCl 2 5%, mix all ingredients and stir well;

[0035] (3) Pack the evenly stirred raw materials in a bag of 5kg each, and store them in a dry environment.

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Abstract

The invention discloses an aluminium-silicon alloy refining agent produced by virtue of an electrothermal process. The aluminium-silicon alloy refining agent is prepared from the following raw materials in percentage by weight: 55-70% of NaCl, 20-35% of NaAlF6, 3-10% of KCl and 3-10% of MgCl2. By adding NaCl, NaAlF6, KCl and MgCl2 at a certain ratio into the aluminium-silicon alloy refining agent, the primary aluminium-silicon alloy produced by virtue of the electrothermal process is refined, so that the content of impurities in the aluminium-silicon alloy product can be greatly reduced; more than 90% of the impurities comprising CaSiO3 and Al2O3 in the alloy can be removed, so that the quality of the product can be greatly improved; the aluminium-silicon alloy refining agent is significant in impurity-removing effect. In addition, the preparation method of the product is simple, convenient to use and easy to popularize and apply; greater social and economic benefits can be generated.

Description

technical field [0001] The invention relates to the field of aluminum-silicon alloy casting, in particular to an aluminum-silicon alloy refining agent; the invention also relates to a preparation method of an aluminum-silicon alloy refining agent. Background technique [0002] The aluminum-silicon alloy produced by electrothermal method has the characteristics of low density, high strength, good wear resistance and heat resistance. In addition, aluminum-silicon alloy has a small expansion coefficient and high thermal stability. It is also a good structural material and is widely used in industries such as automobiles, motorcycles, tractors, ships, construction machinery, electric power, metallurgy, and household appliances. [0003] At present, there are mainly two methods for producing aluminum-silicon alloys, namely, blending method and electrothermal method. The blending method is made by refining, mixing and blending metal aluminum produced by electrolysis and industria...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B4/06
Inventor 刘炎森王建军康朝阳孙怀德张广浩
Owner 登封电厂集团铝合金有限公司