Aluminum alloy refining alterant and preparation method and application thereof

A modification agent and aluminum alloy technology, which is applied in the field of aluminum alloy refining modification agent and its preparation, can solve problems affecting product quality, coarse aluminum alloy grains, and limited applications, and achieve good impurity removal effect and grain refinement ability Strong, improve the effect of microstructure

Inactive Publication Date: 2017-10-24
INST OF METAL RESEARCH - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, during the solidification process, aluminum alloys tend to form coarse-grained structures, which will directly affect product quality and limit its application.

Method used

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  • Aluminum alloy refining alterant and preparation method and application thereof
  • Aluminum alloy refining alterant and preparation method and application thereof
  • Aluminum alloy refining alterant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Potassium chloride: 60%, sodium chloride: 20%, cerium fluoride: 10%, and potassium fluoroaluminate: 10% are weighed by mass percentage. Mix the salts of each component in the formula amount evenly, put them into a crucible to overheat and melt to remove the crystal water, and raise the temperature to 700-900°C, and finally, after stirring the mixed molten salt, pour it into a metal mold to obtain this product Refining Modifier.

Embodiment 2

[0024] Potassium chloride: 50%, sodium chloride: 23%, cerium fluoride: 13%, and potassium fluoroaluminate: 14% are weighed by mass percentage. Mix the salts of each component in the formula amount evenly, put them into a crucible to overheat and melt to remove the crystal water, and raise the temperature to 700-900°C, and finally, after stirring the mixed molten salt, pour it into a metal mold to obtain this product Refining Modifier.

Embodiment 3

[0026] Potassium chloride: 40%, sodium chloride: 27%, cerium fluoride: 16%, and potassium fluoroaluminate: 17% were weighed by mass percentage. Mix the salts of each component in the formula amount evenly, put them into a crucible to overheat and melt to remove the crystal water, and raise the temperature to 700-900°C, and finally, after stirring the mixed molten salt, pour it into a metal mold to obtain this product Refining Modifier.

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PUM

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Abstract

The invention discloses an aluminum alloy refining alterant and a preparation method and application thereof and belongs to the technical field of aluminum alloy smelting processing. The refining agent is composed of the components of, in percentage by mass, 30-60% of potassium chloride, 20-30% of sodium chloride, 10-25% of cerium fluoride and 10-25% of potassium fluoroaluminate. The invention furthermore provides the preparation method of the aluminum alloy refining alterant. The aluminum alloy refining alterant prepared through the method has the characteristics of being good in degassing and impurity removal effect, high in grain refining capacity, capable of improving microstructures of aluminum alloy ingot castings and the like and is good in industrial application prospect.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy smelting and processing, in particular to an aluminum alloy refining modifier and a preparation method and application thereof. Background technique [0002] Aluminum alloy inevitably absorbs gas and produces inclusions during the smelting process, which causes a series of defects such as pores, shrinkage cavities, shrinkage porosity and cracks in castings. In addition, aluminum alloys are prone to form coarse-grained structures during the solidification process, which will directly affect product quality and limit its application. Therefore, it is necessary to refine, purify, and modify the process of aluminum alloy smelting and solidification to remove these gases, inclusions, reduce grain size, and improve the quality of aluminum alloys. It is a commonly used measure to add refining modifier to aluminum alloy for refining, purification and modification. Therefore, modifier treatment pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C1/02
CPCC22C1/06C22C1/026
Inventor 江鸿翔赵九洲郑秋菊徐文龙
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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