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High-efficiency aluminum alloy refining agent, as well as preparation method and usage method thereof

A refining agent and aluminum alloy technology, applied in the field of metallurgy, can solve problems such as poor refining effect, achieve the effect of being suitable for large-scale industrial production, simple and convenient to use, and improving quality

Inactive Publication Date: 2014-10-29
SICHUAN LANDE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is very important to improve the metallurgical quality of aluminum alloy through refining, but the refining effect of the currently used refining agents is generally poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 15% of sodium chloride, 10% of potassium chloride, 23% of potassium fluorosilicate, 12% of sodium fluoroaluminate, 1% of light sodium carbonate, 2% of calcium fluoride, and 1% of hexachloroethane according to weight percentage. %, 14% sodium sulfate, 16% potassium fluoroaluminate, and 7% quartz sand; the aforementioned components are fully mixed to obtain an aluminum alloy high-efficiency refining agent, and then the aluminum alloy high-efficiency refining agent is added to the refining tank; When the aluminum alloy solution reaches 700°C, feed nitrogen into the refining tank, and under the action of nitrogen, send the high-efficiency aluminum alloy refining agent into the aluminum alloy solution.

Embodiment 2

[0025] Weigh 35% of sodium chloride, 20% of potassium chloride, 8% of potassium fluorosilicate, 2% of sodium fluoroaluminate, 9% of light sodium carbonate, 15% of calcium fluoride, and 5% of hexachloroethane according to weight percentage. %, 2% sodium sulfate, 1% potassium fluoroaluminate, and 3% quartz sand; the aforementioned components are fully mixed to obtain an aluminum alloy high-efficiency refining agent, and then the aluminum alloy high-efficiency refining agent is added to the refining tank; When the aluminum alloy solution reaches 705°C, nitrogen gas is introduced into the refining tank, and under the action of nitrogen gas, the high-efficiency aluminum alloy refining agent is sent into the aluminum alloy solution.

Embodiment 3

[0027] Weigh 20% of sodium chloride, 25% of potassium chloride, 10% of potassium fluorosilicate, 5% of sodium fluoroaluminate, 2% of light sodium carbonate, 5% of calcium fluoride, and 3% of hexachloroethane according to weight percentage. %, 7% sodium sulfate, 10% potassium fluoroaluminate, and 13% quartz sand; fully mix the aforementioned components uniformly to obtain an aluminum alloy high-efficiency refining agent, and then add the aluminum alloy high-efficiency refining agent to the refining tank; When the aluminum alloy solution reaches 740°C, argon gas is introduced into the refining tank, and under the action of argon gas, the high-efficiency aluminum alloy refining agent is sent into the aluminum alloy solution.

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Abstract

The invention provides a high-efficiency aluminum alloy refining agent, as well as a preparation method and a usage method thereof. The high-efficiency aluminum alloy refining agent comprises refining agent components including sodium chloride, potassium chloride, potassium fluosilicate, sodium fluoaluminate, light-weight sodium carbonate, calcium fluoride, hexachloroethane, sodium sulfate, potassium fluoaluminate and quartz sand. The preparation method of the high-efficiency aluminum alloy refining agent comprises the following steps: respectively weighing all the components according to the weight percentage of the refining agent components, and fully mixing to obtain the high-efficiency aluminum alloy refining agent. The usage method of the high-efficiency aluminum alloy refining agent comprises the following steps: placing the high-efficiency aluminum alloy refining agent into a refining tank, introducing nitrogen gas or argon gas into the refining tank when the temperature of aluminum alloy liquid achieves 700-740DEG C, and delivering the high-efficiency aluminum alloy refining agent into the aluminum alloy liquid. The high-efficiency aluminum alloy refining agent is strong in degassing and inclusion removal capabilities, high in reaction speed, high in deslagging efficiency and low in usage temperature. The preparation method and usage method of the high-efficiency aluminum alloy refining agent are simple and effective.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to an aluminum alloy high-efficiency refining agent and its preparation method and use method. Background technique [0002] Due to the characteristics of low density, high specific strength, good electrical conductivity, beautiful appearance and moderate price of aluminum alloy, aluminum and its alloys are not only used in aviation, aerospace, ships and other military industries, but also in building materials, home appliances, electric power and telecommunication cables. And other civil industries have also been widely used. [0003] During the production of aluminum alloy, the hydrogen atoms in the solution will spontaneously form hydrogen gas, and the hydrogen gas and inclusions will form bubbles during the solidification of the aluminum alloy solution, causing defects in the aluminum alloy components. [0004] Due to the presence of impurities and gases in the aluminum alloy solution...

Claims

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Application Information

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IPC IPC(8): C22C1/06C22C21/00
Inventor 袁名万
Owner SICHUAN LANDE IND
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