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Slag conglomeration agent for treating magnesium and magnesium alloy

A technology of magnesium alloy and slag aggregation agent, applied in the field of metallurgy

Inactive Publication Date: 2013-07-24
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned traditional method is still used for slag removal, which leads to a long time for magnesium and magnesium alloy liquid to remove slag during the slag removal process, serious loss, and seriously affects the energy consumption index.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] raw material:

[0017] Graphite powder 25%; NaF 20% (purity 99%);

[0018] Talc 20%; Borax 15%;

[0019] Cryolite 5%; Expanded Perlite 15%;

[0020] 1) Crush NaF, graphite powder, talcum powder, borax, expanded perlite, and cryolite until the particle size is less than 5mm;

[0021] 2) Mix the above materials evenly;

[0022] 3) Add the above-mentioned slag-accumulating agent (1Kg / t) to the magnesium melt with a composition of 99.9% before casting and removing slag, sprinkle the slag-accumulating agent evenly on the surface of the flux, and let it stand for 5 minutes;

[0023] 4) Carry out the slag removal treatment, most of the slag is lumpy, the melt and the slag are separated, the slag is very easy to remove, the whole slag removal process takes a short time and the process is simple.

Embodiment 2

[0025] raw material:

[0026] Graphite powder 15%; NaF 25% (purity 80%);

[0027] Talc 15%; Borax 20%;

[0028] Cryolite 2%; Expanded Perlite 23%;

[0029] 1) Crush NaF, graphite powder, talcum powder, borax, expanded perlite, and cryolite until the particle size is less than 5mm;

[0030] 2) Mix the above materials evenly;

[0031] 3) Add slag-accumulating agent (1Kg / t) before casting and removing slag of the magnesium alloy whose composition is AS31, sprinkle the slag-accumulating agent evenly on the surface of the flux, and let it stand for 5 minutes;

[0032] 4) Carry out the slag removal treatment, most of the slag is lumpy, the melt and the slag are separated, the slag is very easy to remove, the whole slag removal process takes a short time and the process is simple.

Embodiment 3

[0034] raw material:

[0035] Graphite powder 18%; NaF 23% (purity 90%);

[0036] Talc 18%; Borax 17%;

[0037] Cryolite 4%; Expanded Perlite 20%;

[0038] 1) Crush NaF, graphite powder, talcum powder, borax, expanded perlite, and cryolite until the particle size is less than 5mm;

[0039] 2) Mix the above materials evenly;

[0040] 3) Add slag-accumulating agent (1Kg / t) before casting and removing slag of the magnesium alloy whose composition is ZK60, sprinkle the slag-accumulating agent evenly on the surface of the flux, and let it stand for 5 minutes;

[0041] 4) Carry out the slag removal treatment, most of the slag is formed into blocks, the melt and the slag are separated, the slag is very easy to remove, the whole process of slag removal is short, the process is simple, and no toxic and harmful gas substances are produced.

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Abstract

The invention relates to a slag conglomeration agent for treating magnesium and magnesium alloy, belonging to the technical field of casting of magnesium and magnesium alloy. The slag conglomeration agent comprises the following components in percentage by weight: 20-25% of NaF, 15%-25% of graphite powder, 15%-20% of talcum powder, 15%-20% of borax, 15%-23% of expanded perlite and 2%-5% of cryolite. By using the slag conglomeration agent, molten slag can be accumulated into blocks and is easy to slag off, the slagging-off difficulty is remarkably reduced, the slagging-off time is shortened, the slagging-off effect is improved, and hazardous gas is avoided.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to the technical field of magnesium and magnesium alloy smelting, in particular to a slag accumulator for processing magnesium and magnesium alloy slag. Background technique [0002] With the rapid development of the domestic economy and society, my country has become a major producer of pure magnesium and magnesium alloys in the world. The market demand for high-quality magnesium products has grown rapidly, making the domestic magnesium industry maintain rapid development in recent years. But on the whole, compared with some powerful countries in the world, the production process, equipment and technical level of my country's magnesium industry are relatively backward. difference. What is especially important is that due to the backwardness of production technology, equipment and management, there is a big gap in the production material consumption and energy consumption techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B26/22C22B9/10
Inventor 贾琨于文斌姚建明
Owner SOUTHWEST UNIV
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