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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

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

[0027] Process: Packed by PE film packaging bag in quarters, and pressed into 500g round cake shape titanium agent.

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

Example Embodiment

[0029] Example 2

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

[0031] Process: PE film packaging bag is used to pack in two equal parts, and each piece of 500g round cake shape iron agent is pressed.

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

Example Embodiment

[0033] Example 3

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

[0035] Process: PE film packaging bag is used to pack in two equal parts, and each piece of 500g round cake shape manganese agent is pressed.

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

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PUM

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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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