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Aluminum alloy ingot for wheel hub and preparation method thereof

A technology of aluminum alloy ingots and aluminum alloy melts, applied in the field of aluminum alloy ingot processing, can solve the problems of low mechanical properties, achieve excellent shock absorption performance, small average grain size, and uniform distribution

Active Publication Date: 2017-12-01
广西平果铝合金精密铸件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, A356 aluminum is generally used in casting aluminum alloy wheels, and the production of aluminum alloy wheels is one-time casting without reprocessing, and the internal structure of the metal has not changed, and there is a problem of low mechanical properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Aluminum alloy ingots for wheel hubs, the mass percentages of each component are: Si1.1%, Mg1.4%, Ni0.18%, Zn0.2%, Ti0.36%, Sr0.15%, Y0.09%, Er0 .11%, Ga0.03%, the total amount of impurity elements of other metals and non-metals does not exceed 0.5%, and the rest is Al.

[0018] The preparation method of the aluminum alloy ingot for the above-mentioned wheel hub comprises the following steps:

[0019] (1) Melting: Melt the aluminum raw material, magnesium, silicon components and covering agent in a melting furnace to 700-720°C, then add other alloy components except aluminum, magnesium, and silicon, and continue to heat up to 740-750°C, After all the alloying elements are melted, the aluminum alloy melt is obtained;

[0020] (2) Refining: adjust the temperature of the aluminum alloy melt to 720-730°C, add a refining agent for refining treatment, then raise the temperature to 750-760°C, feed argon gas for further degassing refining, and remove slag after refining;

[0...

Embodiment 2

[0025] Aluminum alloy ingots for wheel hubs, the mass percentages of each component are: Si0.8%, Mg1.0%, Ni0.12%, Zn0.1%, Ti0.30%, Sr0.09%, Y0.06%, Er0 .08%, Ga0.02%, the total amount of impurity elements of other metals and non-metals does not exceed 0.5%, and the rest is Al.

[0026] The preparation method of the aluminum alloy ingot for the above-mentioned wheel hub comprises the following steps:

[0027] (1) Melting: Melt the aluminum raw material, magnesium, silicon components and covering agent in a melting furnace to 700-720°C, then add other alloy components except aluminum, magnesium, and silicon, and continue to heat up to 740-750°C, After all the alloying elements are melted, the aluminum alloy melt is obtained;

[0028] (2) Refining: adjust the temperature of the aluminum alloy melt to 720-730°C, add a refining agent for refining treatment, then raise the temperature to 750-760°C, feed argon gas for further degassing refining, and remove slag after refining;

[0...

Embodiment 3

[0033] Aluminum alloy ingots for wheel hubs, the mass percentages of each component are: Si1.5%, Mg1.8%, Ni0.22%, Zn0.3%, Ti0.42%, Sr0.21%, Y0.12%, Er0 .14%, Ga0.04%, the total amount of impurity elements of other metals and non-metals does not exceed 0.5%, and the rest is Al.

[0034] The preparation method of the aluminum alloy ingot for the above-mentioned wheel hub comprises the following steps:

[0035] (1) Melting: Melt the aluminum raw material, magnesium, silicon components and covering agent in a melting furnace to 700-720°C, then add other alloy components except aluminum, magnesium, and silicon, and continue to heat up to 740-750°C, After all the alloying elements are melted, the aluminum alloy melt is obtained;

[0036] (2) Refining: adjust the temperature of the aluminum alloy melt to 720-730°C, add a refining agent for refining treatment, then raise the temperature to 750-760°C, feed argon gas for further degassing refining, and remove slag after refining;

[0...

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PUM

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Abstract

The invention discloses an aluminum alloy ingot used for a hub. The aluminum alloy ingot comprises, by mass, 0.8-1.5% of Si, 1.0-1.8% of Mg, 0.12-0.22% of Ni, 0.1-0.3% of Zn, 0.30-0.42% of Ti, 0.09-0.21% of Sr, 0.06-0.12% of Y, 0.08-0.14% of Er, 0.02-0.04% of Ga, 0-0.5% of other metal impurity elements and non-metal impurity elements, and the balance Al. A preparation method of the aluminum alloy ingot comprises the steps of melting, refining, standing and casting. According to the aluminum alloy ingot, the elements such as Ti, Y, Er and Ga are added so that aluminum alloy structures can be modified and refined, the mechanical properties of aluminum alloy are improved, and the effect that the mechanical performance of the aluminum alloy hub is improved is guaranteed.

Description

technical field [0001] The invention relates to the field of aluminum alloy ingot processing, in particular to an aluminum alloy ingot for a wheel hub and a preparation method thereof. Background technique [0002] With the continuous improvement of energy saving and consumption reduction requirements of modern automobiles and the increasingly stringent safety and environmental protection regulations, the requirements for lightweight automobiles have become more urgent. [0003] Aluminum alloy has the advantages of light weight, high strength, good formability and high recovery rate, which is of great significance to reduce vehicle weight, reduce fuel consumption, reduce environmental pollution and improve operating performance, and has become the preferred material for the automotive industry. Using aluminum alloy instead of cast iron and cast steel to make automobile wheels can greatly reduce the weight of the car. At present, aluminum alloy wheels have been widely used. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22C21/08B22D21/04
CPCB22D21/04C22C21/02C22C21/08
Inventor 梁健
Owner 广西平果铝合金精密铸件有限公司
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