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Efficient green aluminum alloy additive and preparation method and application thereof

An aluminum alloy and additive technology, which is applied in the metallurgical field, can solve the problems of high energy consumption, large smoke and dust, and high addition temperature, and achieves good energy saving effect and small flue gas effect.

Inactive Publication Date: 2020-06-05
KUNMING METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Due to the traditional formula of titanium, copper, chromium and other metal additives in the actual use process, the addition temperature is required to be high, generally exceeding 800 ℃, to obtain a yield of about 90%, but the energy consumption is high, the aluminum liquid and The burning loss of metal elements is large, and the production cost is high
At the same time, a large amount of smoke and dust will be generated when adding metal additives at high temperature, which will have a great impact on the environment and personnel health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Proportion: titanium powder 80% + aluminum powder 20%. The purity of titanium powder is 93.75%, and the particle size is -80 mesh. The purity of the aluminum powder is 99.6%, and the particle size is -325 mesh.

[0027] Process: It is packed in quarters of PE film bags and pressed into a 500g round cake-shaped titanium agent.

[0028] Production verification: used in the A356 alloy production line of a factory, the addition temperature is 725~735℃, and the actual yield: 95.61%~99.24%. A small amount of slight fumes were produced during the addition.

Embodiment 2

[0030] Proportion: iron powder 75% + aluminum powder 25%. The purity of iron powder is 99.75%, and the particle size is -150 mesh. The purity of the aluminum powder is 99.6%, and the particle size is -325 mesh.

[0031] Process: It is packaged in PE film bags by the bisecting method, and pressed into iron powder in the shape of a 500g round cake each.

[0032] Production verification: It is used in a casting and rolling production line, the addition temperature is 720~740℃, and the actual yield: 96.25%~99.12%. A small amount of slight fumes were produced during the addition.

Embodiment 3

[0034] Proportion: manganese powder 75% + aluminum powder 25%. Manganese powder has a purity of 99.80% and a particle size of -150 mesh. The purity of the aluminum powder is 99.6%, and the particle size is -325 mesh.

[0035] Process: It is packaged in PE film packaging bags by the bisect method, and pressed into a 500g round cake-shaped manganese agent.

[0036] Production verification: used in a casting and rolling production line, the addition temperature is 730~745℃, and the actual yield: 95.15%~98.10%. A small amount of slight fumes were produced during the addition.

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Abstract

The invention discloses an efficient green aluminum alloy additive and a preparation method and application thereof. The efficient green aluminum alloy additive is composed of, by mass percentage, 70%-90% of metal powder and the balance high-activity superfine aluminum powder, and the sum of the mass percentage of the metal powder and the mass percentage of the high-activity superfine aluminum powder is 100%; and the preparation method comprises the following steps that formula-ratio raw materials are uniformly mixed to obtain the target object high-efficiency green aluminum alloy additive, and the efficient green aluminum alloy additive is applied to the application of the high-efficiency green aluminum alloy additive in an aluminum alloy smelting process. According to the efficient greenaluminum alloy additive and the preparation method and application thereof, the metal additive is used at the temperature of 750 DEG C or below of molten aluminum, the casting yield can reach 95% orabove, the flue gas is small, the flue gas does not contain harmful gases such as fluorine and chlorine, and the influence on the environment and the health of operators is small.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a high-efficiency green aluminum alloy additive and its preparation method and application. Background technique [0002] Aluminum and aluminum alloys have been widely used in aviation, aerospace, construction, automobiles, rail transit, ships, machinery manufacturing, electric power, electronics, instrumentation, chemicals, architectural decoration, packaging, sporting goods and other fields. Aluminum and aluminum alloy materials have become the largest amount of non-ferrous metal materials next to steel. [0003] The main methods of adding alloying elements in aluminum alloy smelting are: [0004] (1) Add pure metal directly. Since the melting point of titanium, copper, manganese, iron, chromium, nickel and other metals is much higher than that of aluminum, the melting speed is slow at the normal melting temperature of aluminum, and it needs to be operated at h...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22C21/00
CPCC22C1/026C22C1/03C22C21/00
Inventor 胥福顺陈劲戈孙彦华尚青亮包崇军张玮张辉岳有成周娴
Owner KUNMING METALLURGY INST
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