Refining composition and smelting method of aluminum or aluminum alloy

A technology of composition and aluminum alloy, which is applied in the field of refining agent and smelting process, can solve problems such as failure to suppress or eliminate, and achieve the effects of reducing smelting costs, reducing black smoke, and reducing additional dosage

Inactive Publication Date: 2014-10-29
SMC CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, there is currently no refining agent that can suppress

Method used

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  • Refining composition and smelting method of aluminum or aluminum alloy

Examples

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Comparison scheme
Effect test

Embodiment 1

[0038] KCl, MgCl 2 , CaF 2 The weight percentages are respectively 32.5%, 32.5% and 35% and mixed thoroughly, heated and dehydrated in an electric furnace, then cooled and crystallized, and the obtained crystal is composition 1.

Embodiment 2

[0040] KCl, MgCl 2 , CaF 2 Mix well in amounts of 30%, 30% and 40% by weight, heat and dehydrate in an electric furnace, then cool and crystallize, and the obtained crystal is composition 2.

Embodiment 3

[0042] KCl, MgCl 2 , CaF 2 Mix well in amounts of 25%, 25% and 50% by weight, heat and dehydrate in an electric furnace, then cool and crystallize, and the obtained crystal is composition 3.

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Abstract

The invention discloses a refining composition for smelting aluminum or an aluminum alloy, and a method for smelting aluminum or the aluminum alloy by utilizing the refining composition. The refining composition comprises a low-smoke composition formed by KCl, MgCl2 and CaF2, wherein the weight ratio of KCl to MgCl2 is 1:1; the total weight of KCl and MgCl2 accounts for 65wt% to 50wt% of the total weight of the low-smoke composition; the weight of CaF2 accounts for 35wt% to 50wt% of the total weight of the low-smoke composition. The refining composition can be used for eliminating or obviously reducing black smoke generated during the smelting of aluminum or the aluminum alloy.

Description

technical field [0001] The invention relates to a refining agent and a smelting process in the smelting process of aluminum and aluminum alloy. Background technique [0002] Due to the strong chemical activity of aluminum, it is easy to generate inclusions, gases, etc. during the smelting process. After the melt solidifies, they will be distributed inside the aluminum or aluminum alloy and become defects, which have a great impact on the properties of the material. Therefore, in order to improve the performance of cast aluminum and its alloys, the inclusions and gases in the melt must be fully removed to avoid defects in castings. [0003] A common method at present is to add refining agent during the smelting process, and remove the slag through its adsorption, dissolution and chemical action with the inclusions in the melt, and at the same time use the volatile gaseous salt produced by the chemical action, such as aluminum chloride , take out the gas in the aluminum liqui...

Claims

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Application Information

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IPC IPC(8): C22C1/06C22C1/02C22C21/00
Inventor 赵彤皮林
Owner SMC CHINA
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