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Slag removal flux with heating effect for secondary aluminum smelting and preparation method thereof

A secondary aluminum and flux technology, applied in the field of secondary aluminum smelting, can solve the problems of difficult removal, harmful gas, slag inclusion, and many inclusions, and achieve the effect of improving fluidity and recovery rate

Inactive Publication Date: 2021-10-08
四川实美科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned technical method solves the problem of harmful gas and smoke generated during the smelting process of recycled aluminum, but avoids the problem that the slag and inclusions are too much to remove on the surface during the smelting of recycled aluminum.

Method used

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  • Slag removal flux with heating effect for secondary aluminum smelting and preparation method thereof
  • Slag removal flux with heating effect for secondary aluminum smelting and preparation method thereof
  • Slag removal flux with heating effect for secondary aluminum smelting and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Step 1: Convert KBF 4 50 parts, NaCl 33 parts, KCl 33 parts, NaCl 3 AlF 6 14 parts and Na 2 SiF 6 21 parts were mixed and stirred at 130°C and normal pressure for 60 minutes to form a uniform dry powder mixture;

[0043] Step 2: Add a certain amount of NaNO to the mixture 3 16 parts, Na 2 CO 3 16 parts, 4 parts of NaF and 2.5 parts of rare earth oxides were mixed and stirred for 35 minutes at a temperature of 110°C and normal pressure;

[0044] Step 3: cooling and stirring for 25 minutes;

[0045] Step 4: After the stirring is completed, put it into a collection container and collect it for slag removal in secondary aluminum smelting.

[0046] Put the slag removal flux prepared above into the aluminum alloy smelting.

Embodiment 2

[0048] Step 1: Convert KBF 4 30 parts, NaCl 20 parts, KCl 20 parts, NaCl 3 AlF 6 12 parts, Na 2 SiF 6 14 parts were mixed and stirred at 130°C and normal pressure for 60 minutes to form a uniform dry powder mixture;

[0049] Step 2: Add a certain amount of NaNO to the mixture 3 8 parts, Na 2 CO 3 7 parts, 0.5 parts of NaF and 0.2 parts of rare earth oxides were mixed and stirred for 35 minutes at a temperature of 110°C and normal pressure;

[0050] Step 3: cooling and stirring for 25 minutes;

[0051] Step 4: After the stirring is completed, put it into a collection container and collect it for slag removal in secondary aluminum smelting.

[0052] Put the slag removal flux prepared above into the aluminum alloy smelting.

Embodiment 3

[0054] Step 1: Convert KBF 4 40 parts, NaCl 26.67 parts, KCl 26.67 parts, NaCl 3 AlF 6 13 parts, Na 2 SiF 6 18 parts were mixed according to a certain proportion at 130°C and normal pressure for 60 minutes to form a uniform dry powder mixture;

[0055] Step 2: Add NaNO to the mixture 3 12 parts, Na 2 CO 3 10 parts, 2.5 parts of NaF and 0.8 parts of rare earth oxide, mixed and stirred for 35 minutes at a temperature of 110 ° C and normal pressure;

[0056] Step 3: cooling and stirring for 25 minutes;

[0057] Step 4: After the stirring is completed, put it into a collection container and collect it for slag removal in secondary aluminum smelting.

[0058] Put the slag removal flux prepared above into the aluminum alloy smelting.

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Abstract

The invention discloses a slag removal flux with a heating effect for secondary aluminum smelting and a preparation method thereof. The preparation method comprises the following steps of: mixing and stirring KBF4, NaCl, KCl, Na3AlF6 and Na2SiF6 in a certain proportion at X temperature and normal pressure for Y minutes to form a uniform dry powder mixture; adding a certain amount of NaNO3, Na2CO3, NaF and rare earth oxide into the mixture, and mixing and stirring at Z temperature and normal pressure for M minutes; cooling and stirring for N minutes; and after stirring, putting the mixture into a collection container for secondary aluminum smelting and slag removal. According to the invention, KBF4, NaCl, KCl, Na3AlF6, Na2SiF6, NaNO3, Na2CO3, NaF and rare earth oxide all have a fluxing effect; and when the KBF4, NaCl, KCl, Na3AlF6, Na2SiF6, NaNO3, Na2CO3, NaF and rare earth oxide are added into slag inclusion on the surface of molten aluminum, a great deal of heat is released, the flowability of slag can be improved, the slag can be favorably separated from the molten aluminum, the slag can be smoothly removed, the recovery rate of aluminum can be improved, and the slag removal flux has a small amount of grain refining effect.

Description

technical field [0001] The invention relates to the technical field of secondary aluminum smelting, in particular to a method for preparing a slag-removing flux for secondary aluminum smelting with a heating effect. Background technique [0002] Aluminum alloy has low density, high specific strength, corrosion resistance, oxidation resistance, electrical conductivity and thermal properties second only to silver and copper, and has good processability, non-toxicity, good low-temperature reflection performance, non-magnetic, and no sparks , The surface is glossy and beautiful, and it can be used for surface coating and other special properties. It is widely used in construction, transportation, national defense, packaging and other industries and fields of daily life. my country is a big producer and consumer of aluminum products, however, bauxite resources are scarce. Therefore, the ever-expanding market demand and the relatively poor aluminum ore resources have become the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C21/00
CPCC22C1/06C22C21/00
Inventor 叶天佑叶光华
Owner 四川实美科技有限公司