Flux used in aluminum and alloy melt processing, and preparation method thereof

A manufacturing method and flux technology, which are applied in the field of purification and refining treatment of aluminum and alloy melts, can solve the problems of adding fluoride salt and no refining agent, and achieve good removal of oxides, slag, and alkali metals and oxides. mixed effect

Inactive Publication Date: 2013-05-08
江西永特合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are no research papers on the addition of fluorine salts to magnesium chloride-potassium chloride refining agents, and there are no refining agents composed of magnesium chloride, potassium chloride and fluorine salts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Prepare 100 kg of refining agent. The composition is 40% potassium chloride, 55% magnesium chloride, 2.5% potassium fluoride and 2.5% magnesium fluoride: weigh 40 kg potassium chloride, 55 kg magnesium chloride, 2.5 kg potassium fluoride and 2.5 kg magnesium fluoride, pour Heat the crucible to 700-750 degrees to melt, stir evenly, pour out, cool and solidify, then break, and sieve out particles below 3 mm, and finally pack them in packaging bags.

Embodiment 2

[0022] Prepare 100 kg of refining agent. The composition is 40% potassium chloride, 50% magnesium chloride and 10% sodium fluorosilicate: Weigh 40 kg of potassium chloride, 50 kg of magnesium chloride and 10 kg of sodium fluorosilicate, pour it into a crucible and heat it to 700-750 degrees to melt, After stirring evenly, pour out, cool and solidify, then crush, and sieve out particles below 3 mm, and finally pack them in packaging bags.

Embodiment 3

[0024] Prepare 100 kg of refining agent. The composition is 35% potassium chloride, 45% magnesium chloride and 20% sodium fluoroaluminate: weigh 35 kg of potassium chloride, 45 kg of magnesium chloride and 20 kg of sodium fluoroaluminate, pour them into a crucible and heat to 700-750 degrees to melt, After stirring evenly, pour out, cool and solidify, then crush, and sieve out particles below 3 mm, and finally pack them in packaging bags.

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PUM

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Abstract

The invention provides a flux used in aluminum and alloy melt processing, and a preparation method thereof. The flux is mainly composed of potassium chloride, magnesium chloride and fluoride salt, wherein potassium chloride accounts for 25-65%, magnesium chloride accounts for 30-70%, fluoride salt accounts for 2.5-25%, and the total amount of the components is 100%. The preparation method comprises the steps that: the components are placed in a crucible, and are molten under high temperature; the materials are uniformly mixed; the obtained mixture is poured out, cooled, and solidified; the obtained material is crushed and sieved, and is sealed by using packages. The flux is a refining agent needed in an aluminum alloy smelting process, and has a good refining effect. With the flux, impurities such as alkali metal elements of sodium, calcium, and lithium, and oxides can be effectively removed, and a good slag removing effect is provided.

Description

technical field [0001] The invention relates to a flux used for processing aluminum and alloy melts and a manufacturing method thereof. Specifically, it is used for the purification and refining treatment of aluminum and alloy melts to remove alkali metals, oxide inclusions and hydrogen in the melts. Background technique [0002] During the smelting process of aluminum and its alloys, melt quality and environmental issues are important issues for the aluminum industry. These are closely related to the processing technology of the melt and the flux used. [0003] Aluminum ingots often inevitably contain high alkali metal impurities such as sodium, calcium and lithium. The return material and aluminum scrap inside the factory are usually mixed with non-metallic impurities, organic materials and moisture. These alkali metals, non-metallic slag inclusions and water vapor will cause serious quality problems to the casting and subsequent processing of aluminum and its allo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/10C22C21/06C22C1/06C22C21/00
Inventor 刘玉林颜晓明
Owner 江西永特合金有限公司
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