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Porous metamorphic loose metal additive, its preparation method and application

A metal additive, multi-porous technology, applied in the field of aluminum alloy process additives, can solve the problems of affecting aluminum alloy material, high energy consumption, human body pollution, etc., and achieve the effect of less impurities, high purity, and pollution solving

Active Publication Date: 2017-01-04
哈尔滨东盛金材科技(集团)股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high energy consumption of existing aluminum alloy additives, serious pollution to the environment and human body, and influence on aluminum alloy materials, to provide porous metal additives with metamorphic properties, and to provide its preparation method and application

Method used

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  • Porous metamorphic loose metal additive, its preparation method and application
  • Porous metamorphic loose metal additive, its preparation method and application
  • Porous metamorphic loose metal additive, its preparation method and application

Examples

Experimental program
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Embodiment 1-6

[0017] Add 99.6% of the alloy powder to the roller or hammer crusher and crush it into a powder with a particle size of 100 microns, add 0.2% of paraffin powder, 0.1% of ammonium bicarbonate, 0.05% of stearic acid and 0.05% of potassium nitrate, and mix The material equipment is mixed and stirred evenly to make a mixture; the mixture is cold-pressed into a round block with a diameter of 30mm~80mm and a height of 2mm to obtain the product.

[0018] The alloy powders in Examples 1-6 are shown in Table 1.

[0019] Alloy powders in Table 1 Examples 1-6

[0020]

[0021] The principle of the present invention is: 99.6% of the alloy metal powder is the matrix, that is, the metal of the additive required for the aluminum alloy, such as iron, manganese, copper, titanium, nickel or chromium, which is used to adjust the metal composition in the aluminum alloy to achieve the Different performance requirements of the alloy; 0.2% paraffin powder and 0.1% ammonium bicarbonate are used a...

experiment example

[0029] The products obtained in Example 2 and Comparative Example 2 were respectively added into molten aluminum at 730°C during the preparation of the aluminum alloy, and the quality of the obtained aluminum alloy was tested as shown in Table 3. The table is the comparative test results of using the traditional additive Mn75%Flux25% of Comparative Example 2 and the porous metamorphic loose metal additive (Mn) of Example 2 to make 3A21 aluminum alloy respectively:

[0030] Table 3 The detection results of embodiment 2 and comparative example 2

[0031]

[0032] Note: 1. 3A21 grade aluminum alloy requires the target value of Mn to be 1.25%;

[0033] 2. The total weight of molten aluminum is 1 ton.

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Abstract

The invention relates to a porous modification loose metal additive and a preparation method and application thereof. The porous modification loose metal additive consists of the following raw materials in percentage by mass: 99.6% of alloy elements, 0.2% of paraffin, 0.1% of ammonium bicarbonate, 0.05% of stearic acid and 0.05% of potassium nitrate; and the alloy elements are added in a powder form. The matching components can be quickly fused, are environment-friendly, free of solvent, aluminum powder and poison, and do not change the aluminum alloy crystal structure.

Description

technical field [0001] The invention belongs to the field of aluminum alloy process additives, and in particular relates to a multi-porous metamorphic loose metal additive. Background technique [0002] Aluminum alloy has the characteristics of light weight, high specific strength and specific stiffness, good corrosion resistance, non-magnetic, good forming and processing performance, good low temperature performance and recyclability, and is widely used in aerospace, transportation, electric power and electronics, construction , container packaging and petrochemical and other industrial manufacturing fields. [0003] Aluminum alloy additives are mainly used to adjust the composition of aluminum alloys, generally composed of alloy powder plus flux or aluminum powder plus flux. Halide salts are commonly used as traditional additives for flux at home and abroad. Although it solves the problem of adding aluminum-based master alloys, it contains a large amount of elements such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C21/00
Inventor 张忠华
Owner 哈尔滨东盛金材科技(集团)股份有限公司
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