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Low-temperature refining fluxing medium for aluminum alloy smelting and preparation method for low-temperature refining fluxing medium

A low-temperature refining and aluminum alloy technology, applied in the field of slag removal agent and its preparation, can solve the problems of low recovery rate of aluminum alloy smelting, high aluminum content in slag, failure to meet quality requirements, etc., and achieve low aluminum content and melting point Low, the effect of improving the total recovery rate

Active Publication Date: 2016-12-07
ZHUZHOU CHUANGLIN ALLOY
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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 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

example 1

[0028] Weigh 15 parts of sodium chloride (225 kg), 15 parts of potassium chloride (225 kg), 12 parts of sodium fluorosilicate (180 kg), 6 parts of sodium fluoroaluminate (90 kg), 6 parts of light sodium carbonate (90 kilograms), 12 parts of calcium fluoride (180 kilograms), join the above-mentioned each raw material in the heating mixer, the temperature is set at 105 ℃, heating and stirring for 60 minutes, stop heating, 30 parts of sodium nitrate (450 kilograms), charcoal Add 4 parts (60 kg) of powder into the blender, stir for 10 minutes, pass the dried and stirred aluminum alloy low-temperature refining slag removal agent (secondary mixture) through a 20-mesh sieve, put it into the holding pan, and cool it naturally to At room temperature, carry out hot-sealing packaging, each plastic bag is 2 kg, and then put it into a carton, pack the carton, 20 kg per carton.

example 2

[0030] Weigh 20 parts of sodium chloride (300 kg), 20 parts of potassium chloride (300 kg), 9 parts of sodium fluorosilicate (135 kg), 5 parts of sodium fluoroaluminate (75 kg), and 5 parts of light sodium carbonate (75 kilograms), 10 parts of calcium fluoride (150 kilograms), join aforementioned each component in the heating mixer, temperature is set at 110 ℃, heat and stir for 60 minutes, stop heating, add 27 parts of sodium nitrate (415 kilograms), Add 4 parts (60 kg) of charcoal powder into the blender, stir for 10 minutes, put the dried and stirred aluminum alloy low-temperature refining slag removal agent (secondary mixture) through a 20-mesh sieve, put it into the material tray, and let it cool naturally To room temperature, carry out hot-sealing packaging, each plastic bag is 2 kilograms, then put into cartons, pack cartons, 20 kilograms per case.

example 3

[0032] Weigh 25 parts of sodium chloride (375 kg), 25 parts of potassium chloride (3375 kg), 8 parts of potassium fluorosilicate (120 kg), 6 parts of sodium fluoroaluminate (90 kg), 2 parts of light sodium carbonate (30 kilograms), 8 parts (120 kilograms) of calcium fluoride, join aforementioned each component in the heating mixer, temperature is set at 115 ℃, heat and stir for 60 minutes, stop heating, 23 parts (345 kilograms) of sodium nitrate, Add 3 parts of charcoal powder (45 kg) into the blender, stir for 10 minutes, pass the dried and stirred evenly aluminum alloy low-temperature refining slag removal agent (secondary mixture) through a 20-mesh sieve, put it into the holding tray, and let it cool naturally To room temperature, carry out hot-sealing packaging, each plastic bag is 2 kilograms, then put into cartons, pack cartons, 20 kilograms per case.

[0033] The 20-mesh aperture=0.9mm, and the 80-mesh aperture=0.178mm.

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Abstract

The invention discloses a low-temperature refining fluxing medium for aluminum alloy smelting and a preparation method for the low-temperature refining fluxing medium. And the low-temperature refining fluxing medium is characterized in that the low-temperature refining fluxing medium comprises, by weight, (1) 15-25 parts of sodium chloride, (2) 15-25 parts of potassium chloride, (3) 8-12 parts of sodium fluosilicate, (4) 3-8 parts of sodium fluoroaluminate, (5) 2-8 parts of light sodium carbonate, (6) 8-13 parts of calcium fluoride, (7) 18-30 parts of sodium nitrate, and (8) 3-5 parts of charcoal powder. The preparation method for the low-temperature refining fluxing medium comprises the following steps of A, adding the first six raw materials into a heating blender according to the weight ratio, stirring for 60 min at the temperature of 105-115 DEG C and the normal pressure, stopping heating and stirring, and obtaining a first mixture; B, adding the sodium nitrate and the charcoal powder into the first mixture according to the weight ratio, stirring for 10 min without heating, and obtaining a second mixture; and C, discharging the second mixture into the material containing plate, cooling the second mixture down to the indoor temperature naturally, and packaging the cooled down second mixture into finished products with 2 kg of the cooled down second mixture in a bag and 20 kg of the cooled down second mixture in a case. The preparation method is mainly used for the low-temperature refining fluxing medium for aluminum alloy smelting.

Description

technical field [0001] The invention relates to a slagging agent and a preparation method thereof, in particular to a low-temperature refining slagging agent for aluminum alloy smelting and a preparation method thereof. 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 an...

Claims

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Application Information

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IPC IPC(8): C22C1/06C22C21/00
CPCC22C1/06C22C21/00
Inventor 周林周立华
Owner ZHUZHOU CHUANGLIN ALLOY
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