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Electromagnetic Treatment Technology of Intermediate Melt of High Performance Cast Aluminum Alloy

A technology of casting aluminum alloy and processing technology, applied in the field of aluminum alloy, can solve problems such as difficult to achieve technical effects, and achieve the effects of changing metal solidification behavior, pinning grain boundaries, and high precision

Active Publication Date: 2021-05-18
ANHUI FENGHUI METAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technologies realize the application of electromagnetic field by applying current in a single load coil, but due to the skin effect of electromagnetic in the metal melt to be treated, in order to achieve the technical effect, it is necessary to apply a large current in the load coil, even so , it is often difficult to achieve the desired technical effect when a large volume of melt is solidified

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-performance cast aluminum alloy intermediate melt electromagnetic treatment process is characterized in that it includes the following steps:

[0031] Step S1, smelting: mix the aluminum alloy raw materials evenly, then grind them into powder, pass through a 100-mesh sieve, and then dry to dryness to obtain aluminum alloy raw material powder, and then put the aluminum alloy raw material powder into a melting furnace for smelting, The melt is stirred with an electromagnetic stirrer to ensure the composition and temperature uniformity of the alloy melt. After stirring evenly, the melt is pre-refined with carbon tetrachloride to reduce the non-metallic slag content, hydrogen content and alkali metal content in the melt. content;

[0032] Step S2, preparation of the intermediate melt of cast aluminum alloy: the smelted product produced in step S1 is put into the standing furnace from the melting furnace for secondary refining and degassing treatment, and a refining a...

Embodiment 2

[0046] A high-performance cast aluminum alloy intermediate melt electromagnetic treatment process is characterized in that it includes the following steps:

[0047] Step S1, smelting: Mix the aluminum alloy raw materials evenly, then grind them into powder, pass through a 130-mesh sieve, and then dry to dryness to obtain aluminum alloy raw material powder, and then put the aluminum alloy raw material powder into a melting furnace for smelting, The melt is stirred with an electromagnetic stirrer to ensure the composition and temperature uniformity of the alloy melt. After stirring evenly, the melt is pre-refined with carbon tetrachloride to reduce the non-metallic slag content, hydrogen content and alkali metal content in the melt. content;

[0048] Step S2, preparation of the intermediate melt of cast aluminum alloy: put the smelted product produced in step S1 from the melting furnace into the static furnace for secondary refining and degassing treatment, add a refining agent ...

Embodiment 3

[0062] A high-performance cast aluminum alloy intermediate melt electromagnetic treatment process is characterized in that it includes the following steps:

[0063] Step S1, smelting: mix the aluminum alloy raw materials evenly, then grind them into powder, pass through a 150-mesh sieve, and then dry to dryness to obtain aluminum alloy raw material powder, then put the aluminum alloy raw material powder into a melting furnace for smelting, The melt is stirred with an electromagnetic stirrer to ensure the composition and temperature uniformity of the alloy melt. After stirring evenly, the melt is pre-refined with carbon tetrachloride to reduce the non-metallic slag content, hydrogen content and alkali metal content in the melt. content;

[0064] Step S2, preparation of the intermediate melt of cast aluminum alloy: put the smelted product produced in step S1 from the melting furnace into the standing furnace for secondary refining and degassing treatment, add a refining agent wh...

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Abstract

The invention discloses a high-performance cast aluminum alloy intermediate melt electromagnetic treatment process, which is characterized in that it includes the following steps: step S1, smelting; step S2, preparation of cast aluminum alloy intermediate melt; step S3, different frequency electromagnetic treatment ; Step S4, ultrasonic, microwave treatment; Step S5, stable magnetic field treatment; Step S6, heat treatment. The high-performance casting aluminum alloy intermediate melt electromagnetic treatment process disclosed by the invention has short process flow, low cost, can strengthen the alloying effect, improve the strength, hardness and corrosion resistance of the aluminum alloy material, and improve the microstructure and homogenization of the blank. The effect is to reduce the degree of macro-segregation, reduce or eliminate the columnar grain area in the casting billet, so as to obtain excellent comprehensive mechanical properties.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to an electromagnetic treatment process for intermediate melts of high-performance cast aluminum alloys. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. It has low density, high tensile strength, high elongation, good fatigue strength, excellent electrical conductivity, thermal conductivity and corrosion resistance, and is widely used in Aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. Nevertheless, with the increase of international competitiveness, the high-end equipment manufacturing industry in developed countries has put forward higher requirements for high-performance aluminum alloy products such as high temperature resistance, fatigue resistance, and high safety, making more than 80% of my country's export aluminum Alloy products can only be used as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/14C22C1/02C22C1/06C22F1/057B22D27/02B22D27/20
CPCB22D27/02B22D27/20C22C1/026C22C1/06C22C21/14C22F1/057
Inventor 杨勇张枫张育玮田莉
Owner ANHUI FENGHUI METAL
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