Refining agent for aluminium and aluminium alloy melting

An aluminum alloy and refining agent technology, which is applied in the field of aluminum and aluminum alloy processing, can solve the problems of poor separation of aluminum slag, inability to process hot slag, and low technical content, and achieve convenient hot slag recovery, good impurity removal effect, and manufacturing convenient effect

Inactive Publication Date: 2012-01-11
ALNAN ALUMINIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many domestic manufacturers of refining agents with uneven quality. In order to compete for the market, there is a phenomenon of disorderly bidding among the manufacturers. Although the prices of the refining agents produced are low, the technical content is not high. There are some problems, such as: poor separation of aluminum slag, poor degassing effect, excessive heating effect, increased burning loss of aluminum, or no heating effect, resulting in failure to recover hot slag, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh 40 kg of KCl, 39 kg of NaCl, CaF 2 4 kg, Na 2 SiF 6 7 kg, Na 3 AlF 6 7.5 kg, C 2 Cl 6 Set 2.5 kg and mix evenly, spread it evenly on the tray, put the tray into the electric furnace for baking, set the temperature at 85±5°C, bake it for about 2 hours, take it out of the oven, cool it in the air, and finally obtain the product of the present invention through sieving Refining agent for aluminum and aluminum alloy smelting.

Embodiment 2

[0033] Weigh KCl41 kg, NaCl38 kg, CaF 2 5 kg, Na 2 SiF 6 6 kg, Na 3 AlF 6 8.0 kg, C 2 Cl 6 Set 2.0kg and mix evenly, you can also add other additives, spread out on the tray after mixing evenly, put the tray into the electric furnace for baking, set the temperature at 85±5°C, bake for about 2 hours, take out the oven and cool in the air, Finally, the aluminum and aluminum alloy smelting and refining agent of the present invention can be obtained through sieving.

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PUM

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Abstract

The invention provides a refining agent for melting processing of aluminium and aluminium alloy, and the refining agent comprises the following six components of KCl, NaCl, CaF2, Na2SiF6, Na3AlF6, C2Cl6. When the refining agent of the invention is used for melting of aluminium and aluminium alloy, the degassing and impurity-removing effect is better; the hydrogen content in aluminium alloy melt is lower; the burning loss of the metal can be reduced effectively; meanwhile the refining agent has certain heating effect, so the hot slag recovery is more convenient and the recovery rate is higher.

Description

technical field [0001] The invention relates to the field of aluminum and aluminum alloy processing, and more specifically relates to a refining agent for smelting aluminum and aluminum alloys. Background technique [0002] In order to manufacture high-quality aluminum or aluminum alloy profiles, the raw materials of aluminum or aluminum alloy profiles must be refined (refined), which requires a good refining agent, also called a slagging agent. At present, there are three kinds of refining agents used in the aluminum alloy smelting industry, they are RJ1-1, RJ1-2, RJ2-1. These three refining agents are generally passed into aluminum and aluminum alloy melts with inert gas as the carrier for degassing and impurity removal. At present, there are many domestic manufacturers of refining agents with uneven quality. In order to compete for the market, there is a phenomenon of disorderly bidding among the manufacturers. Although the prices of the refining agents produced are low,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/10C22B21/06C22C1/06C22C21/00
CPCY02P10/20
Inventor 周雄多梁敬钧覃锡伯刘长春蔡新海方铭艺伍桂岐
Owner ALNAN ALUMINIUM CO LTD
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