Slag removing agent used for smelting aluminum alloy

A slag cleaning agent and technology for aluminum alloy, applied in the field of aluminum alloy smelting, can solve problems such as failure to meet quality requirements, high aluminum content in slag, and reduction in aluminum alloy smelting recovery rate, and achieve easy removal, energy saving, and shortening of working hours. Effect

Inactive Publication Date: 2018-05-11
徐州轩辕铝业有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

It is very important to improve the metallurgical quality of aluminum alloys through refining. Generally, the smelting temperature of aluminum alloys is between 700°C and 760°C, but the existing refining agents below 700°C cannot meet the quality requirements of smelting, and the aluminum content of the slag produced is relatively high. High, reducing the recovery rate of aluminum alloy smelting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A slag remover for aluminum alloy smelting. The components of the slag remover are calculated by mass percentage: 6% sodium fluoride, 8% calcium fluoride, 6% sodium fluoroaluminate, 16% potassium chloride, Potassium nitrate 5%, potassium fluorosilicate 12%, sodium fluorosilicate 14%, carbon powder 4%, cryolite 5%, the rest add sodium chloride to 100%.

Embodiment 2

[0011] A slag remover for aluminum alloy smelting. The components of the slag remover are calculated by mass percentage: 12% sodium fluoride, 16% calcium fluoride, 16% sodium fluoroaluminate, 24% potassium chloride, Potassium nitrate 10%, potassium fluorosilicate 18%, sodium fluorosilicate 20%, carbon powder 10%, cryolite 10%, the rest add sodium chloride to 100%.

Embodiment 3

[0013] A slag remover for aluminum alloy smelting. The components of the slag remover are calculated by mass percentage: 9% sodium fluoride, 12% calcium fluoride, 11% sodium fluoroaluminate, 20% potassium chloride, Potassium nitrate 8%, potassium fluorosilicate 15%, sodium fluorosilicate 17%, carbon powder 6%, cryolite 8%, the rest add sodium chloride to 100%.

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PUM

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Abstract

The invention provides a slag removing agent used for smelting an aluminum alloy. The slag removing agent is characterized in that components of the slag removing agent comprise, by mass, 6-12% of sodium fluoride, 8-16% of calcium fluoride, 6-16% of sodium fluoroaluminate, 16-24% of potassium chloride, 5-10% of potassium nitrate, 12-18% of potassium fluorosilicate, 14-20% of sodium silicofluoride,4-10% of carbon powder, 5-10% of cryolite, and the rest sodium chloride added to 100%. The slag removing agent is adopted and has the beneficial effects that the heating effect is good, slag and aluminum separation is benefitted, the aluminum amount in slag is extremely low, the slag is dry slag, the slag removing effect is excellent, and moreover, the slag removing agent is easy to clear and convenient to use. Compared with the prior art, energy sources are saved, and labor hours are shortened.

Description

technical field [0001] The invention relates to a slag remover for aluminum alloy smelting and belongs to the field of aluminum alloy smelting. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. After aluminum and aluminum alloys are refined, there is a thick layer of scum on the surface of the molten aluminum. There is more metal aluminum in these slags. The function of the slag remover is to increase the surface tension on the interface between the slag and aluminum. Under normal circumstances, the liquid aluminum and slag are effectively separated after use, and the slag becomes dry powdery slag, which effectively reduces the aluminum content in the slag and reduces the loss of aluminum during slag removal. It is mainly suitable for aluminum slag in aluminum alloy furnaces separate. ...

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 魏道金
Owner 徐州轩辕铝业有限公司
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