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High-intensity aluminum alloy material for automobile hub and production technology thereof

A technology of aluminum alloy material and automobile wheel hub, which is applied in the field of high-strength aluminum alloy material for automobile wheel hub and its production process, can solve the problems of brittleness of aluminum alloy, difficult to find, unstable casting quality, etc., and achieves high mechanical strength and excellent processing. performance, high loads and lightweight effects

Inactive Publication Date: 2017-08-08
马鞍山常裕机械设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, aluminum wheels also have some defects, for example: aluminum alloy is brittle, it is easy to have small cracks, and it is not easy to be found, and the quality of castings is unstable

Method used

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  • High-intensity aluminum alloy material for automobile hub and production technology thereof
  • High-intensity aluminum alloy material for automobile hub and production technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high-strength aluminum alloy material for automobile wheels, the mass percentages of the components in the aluminum alloy material are: Si: 3%, Mg: 0.6%, Mn: 0.08%, Ti: 0.28%, W: 0.03%, Sr : 0.016%, Y: 0.08%, Cu: 0.05%, Ni: 0.2%, Zr: 0.1%, and the balance is Al and unavoidable impurities.

[0020] The production process of the high-strength aluminum alloy material for the above-mentioned automobile wheel hub comprises the following steps:

[0021] (1) Heat and melt aluminum, silicon, magnesium, and copper in an electric furnace at 900°C, then add other alloy components except aluminum, silicon, magnesium, and copper, and continue to heat up to 1160°C until all alloy elements are melted Obtain aluminum alloy melt;

[0022] (2) Adjust the temperature of the aluminum alloy melt to 820°C, add a refining agent (the amount of the refining agent is 0.3% of the weight of the aluminum alloy melt), remove impurities and refine and degas, the refining and degassing time is 25mi...

Embodiment 2

[0025] A high-strength aluminum alloy material for automobile wheels, the mass percentage of each component in the aluminum alloy material is: Si: 3.2%, Mg: 0.6%, Mn: 0.1%, Ti: 0.3%, W: 0.025%, Sr : 0.02%, Y: 0.06%, Cu: 0.06%, Ni: 0.18%, Zr: 0.07%, and the balance is Al and unavoidable impurities.

[0026] The production process of the high-strength aluminum alloy material for the above-mentioned automobile wheel hub comprises the following steps:

[0027] (1) Heat and melt aluminum, silicon, magnesium, and copper in an electric furnace at 880°C, then add other alloy components except aluminum, silicon, magnesium, and copper, and continue to heat up to 1180°C until all alloy elements are melted Obtain aluminum alloy melt;

[0028] (2) Adjust the temperature of the aluminum alloy melt to 800°C, add a refining agent (the amount of the refining agent is 0.28% of the weight of the aluminum alloy melt), remove impurities and refine and degas, the refining and degassing time is 20m...

Embodiment 3

[0031] A high-strength aluminum alloy material for automobile wheels, the mass percentage of each component in the aluminum alloy material is: Si: 2.2%, Mg: 0.4%, Mn: 0.12%, Ti: 0.2%, W: 0.04%, Sr : 0.01%, Y: 0.05%, Cu: 0.07%, Ni: 0.12%, Zr: 0.12%, and the balance is Al and unavoidable impurities.

[0032] The production process of the high-strength aluminum alloy material for the above-mentioned automobile wheel hub comprises the following steps:

[0033] (1) Heat and melt aluminum, silicon, magnesium, and copper in an electric furnace at 920°C, then add other alloy components except aluminum, silicon, magnesium, and copper, and continue to heat up to 1120°C until all alloy elements are melted Obtain aluminum alloy melt;

[0034] (2) Adjust the temperature of the aluminum alloy melt to 780°C, add a refining agent (the amount of the refining agent is 0.32% of the weight of the aluminum alloy melt), remove impurities and refine and degas, the refining and degassing time is 30m...

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Abstract

The invention provides a high-intensity aluminum alloy material for an automobile hub and a production technology thereof. The aluminum alloy material comprises the following components in percentage by mass: 2.2-3.7% of Si, 0.4-0.8% of Mg, 0.05-0.12% of Mn, 0.2-0.35% of Ti, 0.02-0.04% of W, 0.01-0.025% of Sr, 0.05-0.09% of Y, 0.02-0.07% of Cu, 0.12-0.26% of Ni, 0.05-0.12% of Zr, and the balance Al and inevitable impurities. The aluminum alloy material produced by the technology is high in mechanical intensity, and outstanding in processing performance, casting performance and corrosion resistance, and can meet the requirement of modern science development on high-load and light-mass aluminum alloy structural components.

Description

technical field [0001] The invention relates to the field of aluminum alloy materials, in particular to a high-strength aluminum alloy material for automobile wheel hubs and a production process thereof. Background technique [0002] Energy, environment and safety are the three major issues of concern today, and it is precisely these three issues that restrict the development of the automobile industry and the popularization of automobiles. The safety and reliability of a car depends largely on the performance and service life of the wheels used. [0003] At present, the wheels on the market can be divided into steel wheels and alloy wheels according to their materials, and each has its own advantages and disadvantages. The main advantage of steel wheels is that the manufacturing process is simple and the cost is relatively low, and the ability to resist metal fatigue is very strong, which is what we commonly call cheap and strong. However, the disadvantages of steel wheel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/02
CPCC22C21/02C22C1/026
Inventor 蔡发华
Owner 马鞍山常裕机械设备股份有限公司
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