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Method for in-situ synthesis of aluminum matrix composite through melt control and with electromagnetic stirring function

An aluminum-based composite material and electromagnetic stirring technology, applied in the field of aluminum-based composite materials, can solve the problem of high temperature oxidation resistance

Active Publication Date: 2021-05-11
ALUMICS MATERIALS INST SHANGHAI JIAO TONG UNIV (ANHUI HUAIBEI) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most of the aluminum melt degassing rotors are made of graphite material, because graphite material has excellent thermal shock resistance and can be machined, and aluminum liquid does not infiltrate graphite, but the weakness of graphite material is that it is not resistant to high temperature oxidation, resulting in long service life. Only need to replace in 14-20 days

Method used

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  • Method for in-situ synthesis of aluminum matrix composite through melt control and with electromagnetic stirring function
  • Method for in-situ synthesis of aluminum matrix composite through melt control and with electromagnetic stirring function
  • Method for in-situ synthesis of aluminum matrix composite through melt control and with electromagnetic stirring function

Examples

Experimental program
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Effect test

Embodiment 1

[0036]Such asfigure 1 As shown, the pure aluminum or aluminum alloy base is melted at 700 to 760 ° C, and the aluminum furnace 1 of the aluminum melt 2 is placed over the hydraulic lifting stage 10 and the reaction salt and the reaction aid are added to the reaction. The hydraulic lift 10 is raised such that the immersion tube 5 of the vacuum package 3 disposed above the aluminum furnace 1 is immersed in aluminum melt 2. The vacuum chamber 8 of the vacuum package 3 is evacuated by the air opening 4, so that the aluminum melt 2 enters the vacuum package 3 under atmospheric pressure.

[0037]At the same time, the aluminum melt was used to rotate the aluminum melt: lowering the graphite rotor, the rotor 6 of the graphite rotor 6 passed through the sealing bearing 7 provided at the top of the vacuum package 3, passed through the vacuum chamber 8, and the spray head 9 was inserted into the aluminum melt 2. At the bottom, argon blows through the intermediate hole of the turn rod 6, is discha...

Embodiment 2

[0046]Such asfigure 2 As shown, the pure aluminum or aluminum alloy matrix is ​​melted at 700 to 760 ° C, and the aluminum melt 2 is placed in aluminum furnace 1, and the reaction salt and reaction aid are added to the reaction. The immersion tube 5 of the vacuum package 3 disposed over the aluminum furnace 1 is immersed in aluminum melt 2. The vacuum chamber 8 of the vacuum package 3 is evacuated by the air opening 4, so that the aluminum melt 2 enters the vacuum package 3 under atmospheric pressure.

[0047]At the same time, the aluminum melt was used to rotate the aluminum melt: lowering the graphite rotor, the rotor 6 of the graphite rotor 6 passed through the sealing bearing 7 provided at the top of the vacuum package 3, passed through the vacuum chamber 8, and the spray head 9 was inserted into the aluminum melt 2. At the bottom, argon blows through the intermediate hole of the turn rod 6, is discharged from the rotary head 9, and the formed bubbles are dispersed by the high spee...

Embodiment 3

[0057]Such asimage 3 As shown, the pure aluminum or aluminum alloy matrix is ​​melted at 700 to 760 ° C, and the aluminum melt 2 is placed in aluminum furnace 1, and the reaction salt and reaction aid are added to the reaction. The immersion tube 5 of the vacuum package 3 disposed over the aluminum furnace 1 is immersed in aluminum melt 2. The vacuum chamber 8 of the vacuum package 3 is evacuated by the air opening 4, so that the aluminum melt 2 enters the vacuum package 3 under atmospheric pressure.

[0058]At the same time, the aluminum melt was used to rotate the aluminum melt: lowering the graphite rotor, the rotor 6 of the graphite rotor 6 passed through the sealing bearing 7 provided at the top of the vacuum package 3, passed through the vacuum chamber 8, and the spray head 9 was inserted into the aluminum melt 2. At the bottom, argon blows through the intermediate hole of the turn rod 6, is discharged from the rotary head 9, and the formed bubbles are dispersed by the high speed...

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Abstract

The invention discloses a method for in-situ synthesis of an aluminum matrix composite through melt control and with an electromagnetic stirring function. The method comprises the following steps of providing a vacuum bag comprising an extraction opening and an immersion pipe, and arranging an immersion pipe to immerse into an aluminum melt in an aluminum smelting furnace; providing a graphite rotor for argon rotating injection; providing an electromagnetic stirring device arranged below the aluminum smelting furnace; adding reaction salt and reaction auxiliary auxiliaries for reaction after pure aluminum or an aluminum alloy matrix in the aluminum smelting furnace is smelted; immersing the immersion pipe of the vacuum bag into the aluminum melt, and vacuumizing a vacuum chamber through the extraction opening; lowering the graphite rotor, so that a rotating rod penetrates through the vacuum chamber of the vacuum bag through a sealing bearing arranged on the top of the vacuum bag, and inserting a nozzle into the bottom of the aluminum melt for argon rotating injection; and starting the electromagnetic stirring device for electromagnetic stirring of the aluminum melt.

Description

Technical field[0001]The present invention relates to an aluminum-based composite, and more particularly to the preparation of an in-situ autohalometric compound.Background technique[0002]In-sitby aluminum-based composites are chemically reacted with different elements or chemicals, and one or several ceramic phase particles are generated in an aluminum matrix to achieve the purpose of improving a single metal alloy property. Through the primary self-prepared composite, there is no contamination of the surface, the substrate and the reinforcement of the enhancer is good. Different types, different numbers of in situ enhanced particles can be obtained by selecting the type of reaction type and controlling the reaction parameters.[0003]However, in situ auto-aluminum-based composites require high requirements in the preparation process, which is high, otherwise it is easy to cause the obtained composite particle size and unevenness and uneven distribution, and the mass fraction is not ...

Claims

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Application Information

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IPC IPC(8): C22C1/06C22C1/10C22C21/00C22C32/00
CPCC22C1/06C22C1/1036C22C21/00C22C32/0073C22C1/1052C22B21/00C22B21/062C22B21/064C22B21/068C22B9/05C22B9/003C22B9/103B22D1/002F27D27/00C22B9/10C22B9/106C22B21/066B22D1/005F27D2027/002
Inventor 王浩伟王建中李爱平
Owner ALUMICS MATERIALS INST SHANGHAI JIAO TONG UNIV (ANHUI HUAIBEI)
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