Preparation method of boron carbide reinforced 6061 aluminum alloy hub

A technology of aluminum alloy wheel hub and boron carbide, which is applied in the field of aluminum alloy processing to achieve the effects of high tensile strength, extended service life and excellent wear resistance

Inactive Publication Date: 2015-05-20
安徽省斯特嘉汽车零部件有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, aluminum alloy wheels prepared by powder metallurgy are rarely seen in the market at present.

Method used

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Experimental program
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Embodiment Construction

[0017] A method for preparing a boron carbide reinforced 6061 aluminum alloy wheel hub, comprising the following steps:

[0018] (1) Alloying elements according to the following mass percentages: Cu 0.2-0.4, Fe 0-0.7, Mg 0.5-1, Si 0.4-0.8, Cr 0.06-0.24, Mn 0-0.15, Cr 0.06-0.12, Zn 0-0.15 , Ti 0.1-0.15, Be 0.02-0.04, Ge 0.015-0.3, Sc 0.01-0.02, the balance is Al for batching, put the prepared charge into the melting furnace for heating and melting, refining and degassing, slag removal, sampling and analysis , secondary refining degassing and secondary sampling analysis operations;

[0019] (2) Flow the alloy liquid into the spray device through the leak nozzle, and carry out gas atomization through the atomization nozzle. The atomization gas is nitrogen or argon, and the gas pressure is 1.0MPa;

[0020] (3) Transfer the atomized alloy powder into a ball mill, and then add 12wt% modified boron carbide for ball mill mixing. The ball-to-material ratio is 4:1, the spee...

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Abstract

The invention discloses a preparation method of a boron carbide reinforced 6061 aluminum alloy hub. The aluminum alloy hub is prepared from the following alloy elements in percentage by mass: 0.2-0.4% of Cu, 0-0.7% of Fe, 0.5-1% of Mg, 0.4-0.8% of Si, 0.06-0.24% of Cr, 0-0.15% of Mn, 0.06-0.12% of Cr, 0-0.15% of Zn, 0.1-0.15% of Ti, 0.02-0.24% of Be, 0.015-0.3% of Ge, 0.01-0.02% of Sc and the balance of Al. The aluminum alloy hub is excellent in mechanical properties, has relatively high tensile strength, yield strength and elongation at break, and also has excellent wear resistance, high-temperature stability, chemical stability and fatigue resistance; the service life of the hub can be greatly prolonged.

Description

technical field [0001] The invention relates to a method for preparing a boron carbide reinforced 6061 aluminum alloy wheel hub, belonging to the technical field of aluminum alloy processing. Background technique [0002] The wheel hub is one of the important parts of the driving system of the car, and it is a kind of security device with high requirements. It has a great relationship with the driving performance, riding comfort and safety of the vehicle. Aluminum alloy is widely used to make automobile wheels because of its light weight, energy saving, low price, high surface quality, good heat dissipation, easy molding, and good vibration damping performance. With the rapid development of the automobile industry, the performance requirements for aluminum alloy wheels are also continuously increasing. The finished aluminum alloy wheels produced by traditional casting processes are prone to component segregation, resulting in unsatisfactory mechanical properties of the finis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/02C22C21/08C22C1/05C22F1/04C22F1/043C22F1/047
CPCC22C21/00C22C1/05C22C21/02C22C21/08C22F1/04C22F1/043C22F1/047
Inventor 徐献朝徐奇峰
Owner 安徽省斯特嘉汽车零部件有限公司
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