Melt control in-situ synthesis aluminum matrix composite system with continuous treatment function

An aluminum-based composite material, an in-situ self-generating technology, which is applied in the field of aluminum-based composite materials and can solve problems such as high temperature oxidation resistance

CN112813279APending Publication Date: 2021-05-18ALUMICS MATERIALS INST SHANGHAI JIAO TONG UNIV (ANHUI HUAIBEI) +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-05-18

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Abstract

The invention discloses a melt control in-situ synthesis aluminum matrix composite system with a continuous treatment function. The melt control in-situ synthesis aluminum matrix composite system comprises an aluminum smelting furnace containing aluminum melt, a vacuum bag, a graphite rotor and a electromagnetic stirring device; the vacuum bag is provided with an immersion pipe and an extraction opening, the immersion pipe is arranged to be capable of being immersed into the aluminum melt in the aluminum smelting furnace, and the extraction opening is used for vacuumizing the vacuum bag; the graphite rotor is used for argon rotary injection, the graphite rotor is provided with a rotating rod and a spray head, the rotating rod is arranged to penetrate through a vacuum chamber of the vacuum bag through a sealing bearing arranged at the top of the vacuum bag, and the spray head is inserted into the bottom of the aluminum melt; and the electromagnetic stirring device is arranged below the aluminum smelting furnace, an aluminum melt outlet runner is arranged on the side wall of the upper portion of a furnace body of the aluminum smelting furnace, and an aluminum melt inlet runner is arranged on the side wall of the bottom of the furnace body of the aluminum smelting furnace.
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Description

technical field

[0001] The invention relates to aluminum-based composite materials, in particular to the preparation of in-situ self-generated aluminum-based composite materials. Background technique

[0002] The in-situ self-generated aluminum matrix composite material is to use the chemical reaction between different elements or chemicals under certain conditions to generate one or several ceramic phase particles in the aluminum matrix to achieve the purpose of improving the performance of a single metal alloy. The composite material prepared by in-situ self-generation has no pollution on the surface of the reinforcement, and the compatibility between the matrix and the reinforcement is good. By selecting the reaction type and controlling the reaction parameters, different types and quantities of in-situ reinforced particles can be obtained.

[0003] However, the in-situ self-generated aluminum matrix composites have high requirements on the conditions including degassing...

Examples

Embodiment 1

[0044] Such as figure 1 As shown, the pure aluminum or aluminum alloy substrate is melted at 700-760° C., the aluminum melting furnace 1 containing the aluminum melt 2 is placed on the hydraulic lifting table 10, and reaction salts and reaction aids are added for reaction. The hydraulic lifting table 10 is raised so that the dip tube 5 of the vacuum bag 3 arranged above the aluminum melting furnace 1 is immersed into the aluminum melt 2 . The vacuum chamber 8 of the vacuum bag 3 is evacuated through the pumping port 4, so that the aluminum melt 2 enters the vacuum bag 3 under atmospheric pressure.

[0045]At the same time, the aluminum melt is sprayed with argon rotation: the graphite rotor is lowered, and the rotating rod 6 of the graphite rotor passes through the sealed bearing 7 arranged on the top of the vacuum bag 3, passes through the vacuum chamber 8, and inserts the nozzle 9 into the bottom of the aluminum melt 2. At the bottom, argon gas is blown in through the middl...

Embodiment 2

[0054] Such as figure 2 As shown, the pure aluminum or aluminum alloy substrate is melted at 700-760°C, the aluminum melt 2 is placed in the aluminum melting furnace 1, and reaction salts and reaction aids are added for reaction. The immersion tube 5 of the vacuum bag 3 arranged above the aluminum melting furnace 1 is immersed into the aluminum melt 2 . The vacuum chamber 8 of the vacuum bag 3 is evacuated through the pumping port 4, so that the aluminum melt 2 enters the vacuum bag 3 under atmospheric pressure.

[0055] At the same time, the aluminum melt is sprayed with argon rotation: the graphite rotor is lowered, and the rotating rod 6 of the graphite rotor passes through the sealed bearing 7 arranged on the top of the vacuum bag 3, passes through the vacuum chamber 8, and inserts the nozzle 9 into the bottom of the aluminum melt 2. At the bottom, argon gas is blown in through the middle hole of the rotating rod 6 and ejected from the rotating nozzle 9. The formed bubbl...

Embodiment 3

[0065] Such as image 3 As shown, the pure aluminum or aluminum alloy substrate is melted at 700-760°C, the aluminum melt 2 is placed in the aluminum melting furnace 1, and reaction salts and reaction aids are added for reaction. The immersion tube 5 of the vacuum bag 3 arranged above the aluminum melting furnace 1 is immersed into the aluminum melt 2 . The vacuum chamber 8 of the vacuum bag 3 is evacuated through the pumping port 4, so that the aluminum melt 2 enters the vacuum bag 3 under atmospheric pressure.

[0066] At the same time, the aluminum melt is sprayed with argon rotation: the graphite rotor is lowered, and the rotating rod 6 of the graphite rotor passes through the sealed bearing 7 arranged on the top of the vacuum bag 3, passes through the vacuum chamber 8, and inserts the nozzle 9 into the bottom of the aluminum melt 2. At the bottom, argon gas is blown in through the middle hole of the rotating rod 6 and ejected from the rotating nozzle 9. The formed bubble...