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Aluminum alloy casting rod for wheel hub and preparation method thereof

A technology of aluminum alloy and aluminum alloy melt, which is applied in the field of aluminum alloy casting rods for wheels and its preparation, can solve the problems of low mechanical properties, low hardness of aluminum alloy wheels, poor mechanical properties, etc., and achieve good safety and excellent impact Effect of toughness and corrosion resistance, yield strength and elongation improvement

Active Publication Date: 2017-09-19
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

As one of the important components in the driving system of a car, the wheel hub is a security component with high requirements. It not only bears the weight of the car, but also is an important part of the appearance of the car. The advantages of good performance, excellent acceleration and braking performance, so it is loved by the majority of automobile manufacturers and consumers; however, the hardness of aluminum alloy wheels is smaller than that of steel wheels, and its mechanical properties are worse than those of steel wheels, which is an important focus of improving mechanical properties It lies in the improvement of aluminum alloy materials
[0003] The quality of the aluminum alloy material is a major factor affecting the quality of the wheel hub. A356 aluminum is commonly used in ordinary casting wheels, and the production of aluminum alloy wheels is one-time casting without reprocessing. The internal structure of the metal The structure 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

[0016] An aluminum alloy cast rod for wheel hubs, the mass percentages of the components are: Si0.8%, Mo0.09%, Mg1.7%, Zn0.2%, Ti0.6%, B0.05%, Be0.02 %, La0.07%, Er0.05%, Ce0.02%, the total amount of impurity elements of other metals and nonmetals does not exceed 0.5%, and the rest is Al.

[0017] The preparation method of the aluminum alloy cast rod for the above-mentioned wheel hub comprises the following steps:

[0018] (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;

[0019] (2) Refining: Adjust the temperature of the aluminum alloy melt to 730-740°C, spray into the refining agent for refining treatment, then raise the temperature to 750-760°C, pass in argon gas for degassing and refining, and remove sla...

Embodiment 2

[0024] An aluminum alloy cast rod for wheel hubs, the mass percentages of the components are: Si0.6%, Mo0.05%, Mg1.4%, Zn0.1%, Ti0.3%, B0.03%, Be0.01 %, La0.04%, Er0.03%, Ce0.01%, the total amount of impurity elements of other metals and non-metals does not exceed 0.5%, and the rest is Al.

[0025] The preparation method of the aluminum alloy cast rod for the above-mentioned wheel hub comprises the following steps:

[0026] (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;

[0027] (2) Refining: Adjust the temperature of the aluminum alloy melt to 730-740°C, spray into the refining agent for refining treatment, then raise the temperature to 750-760°C, pass in argon gas for degassing and refining, and remove sl...

Embodiment 3

[0032] An aluminum alloy cast rod for wheel hubs, the mass percentages of each component are: Si1.1%, Mo0.11%, Mg1.9%, Zn0.3%, Ti0.8%, B0.06%, Be0.03 %, La0.09%, Er0.07%, Ce0.03%, the total amount of impurity elements of other metals and non-metals does not exceed 0.5%, and the rest is Al.

[0033] The preparation method of the aluminum alloy cast rod for the above-mentioned wheel hub comprises the following steps:

[0034] (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;

[0035] (2) Refining: Adjust the temperature of the aluminum alloy melt to 730-740°C, spray into the refining agent for refining treatment, then raise the temperature to 750-760°C, pass in argon gas for degassing and refining, and remove sl...

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Abstract

The invention discloses an aluminum alloy cast rod used for a hub. The aluminum alloy cast rod comprises, by mass, 0.6-1.1% of Si, 0.05-0.11% of Mo, 1.4-1.9% of Mg, 0.1-0.3% of Zn, 0.3-0.8% of Ti, 0.03-0.06% of B, 0.01-0.03% of Be, 0.04-0.09% of La, 0.03-0.07% of Er, 0.01-0.03% of Ce, 0.5% or less of metallic impurities and non-metallic impurities and the balance Al. A preparation method of the aluminum alloy cast rod comprises melting, refining, standing and casting. The cast rod is used for producing the aluminum alloy hub, and the tensile strength, the yield strength and the percentage elongation of the obtained aluminum alloy hub are greatly improved; in addition, the aluminum alloy hub is excellent in abrasion resistance and impact resistance, good in safety and long in service life.

Description

technical field [0001] The invention relates to the field of processing aluminum alloy cast rods, in particular to an aluminum alloy cast rod for wheel hubs and a preparation method thereof. Background technique [0002] At present, the automobile industry is developing in the direction of light weight, high speed, energy saving, comfort and low pollution. Therefore, the usage of aluminum alloy wheels is growing rapidly. As one of the important components in the driving system of a car, the wheel hub is a security component with high requirements. It not only bears the weight of the car, but also is an important part of the appearance of the car. The advantages of good performance, excellent acceleration and braking performance, so it is loved by the majority of automobile manufacturers and consumers; however, the hardness of aluminum alloy wheels is smaller than that of steel wheels, and its mechanical properties are worse than those of steel wheels, which is an important f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C1/02
CPCC22C1/026C22C21/08
Inventor 梁健
Owner 广西平果铝合金精密铸件有限公司