Tetrapod-shaped zinc oxide whisker reinforced aluminum alloy hub and preparing method thereof

A four-needle-shaped zinc oxide and aluminum alloy wheel hub technology, applied in the field of aluminum alloy accessories, can solve the problems of limited deterioration treatment effect, unstable casting quality, poor processing performance, etc., and achieve easy implementation, high production efficiency, casting and forging good performance

Inactive Publication Date: 2016-06-15
DONGGUAN PINPAI IND INVESTMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of the automobile industry, the performance requirements for aluminum alloy wheels are also continuously increasing. There are still some problems in the existing aluminum alloy wheels, such as insufficient strength, heavy weight, poor processing performance, poor heat dissipation, and deterioration treatment effect. Limited, unstable casting quality and other issues, therefore, it is necessary to further improve the comprehensive performance of aluminum alloys for wheel hubs

Method used

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  • Tetrapod-shaped zinc oxide whisker reinforced aluminum alloy hub and preparing method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] In the embodiment of the present invention, a four-acicular zinc oxide whisker-reinforced aluminum alloy wheel hub is made of the following components in terms of weight percentage: tetraacicular zinc oxide whisker 8%, silicon 16%, strontium 1.0%, strontium 1.0%, 0.18% of tantalum, 2.0% of magnesium, 2.4% of manganese, 0.40% of chromium and the balance of aluminum.

[0026] The preparation method of the four-acicular zinc oxide whisker reinforced aluminum alloy wheel hub comprises the following steps:

[0027] (1) Take each component raw material according to the above weight percentage, and each component raw material is pure ingot or alloy material;

[0028] (2) Put the aluminum ingot into a melting furnace at 6890°C for melting, remove impurities, deoxidize, and refine once with a refining agent, then raise the temperature of the melting furnace to 760°C, put each alloy material into the melting furnace for melting, and add refining After secondary refining of the a...

Embodiment 2

[0037] In an embodiment of the present invention, a four-needle zinc oxide whisker reinforced aluminum alloy wheel hub is made of the following components in terms of weight percentage: 14% four-needle zinc oxide whisker, 12% silicon, 1.5% strontium, 0.12% of tantalum, 2.8% of magnesium, 1.8% of manganese, 0.56% of chromium and the balance of aluminum.

[0038] The preparation method of the four-needle zinc oxide whisker-reinforced aluminum alloy wheel hub is the same as that in Example 1.

Embodiment 3

[0040] In an embodiment of the present invention, a four-needle zinc oxide whisker-reinforced aluminum alloy wheel hub is made of the following components in terms of weight percentage: 10% four-needle zinc oxide whisker, 15% silicon, 1.2% strontium, 0.17% of tantalum, 2.4% of magnesium, 2.2% of manganese, 0.42% of chromium and the balance of aluminum.

[0041] The preparation method of the four-needle zinc oxide whisker-reinforced aluminum alloy wheel hub is the same as that in Example 1.

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Abstract

The invention discloses a tetrapod-shaped zinc oxide whisker reinforced aluminum alloy hub and preparing method thereof. The aluminum alloy hub is made of compositions including, by weight percent, 8% to 14% of tetrapod-shaped zinc oxide whiskers, 12% to 16% of silicon, 1.0% to 1.5% of strontium, 0.12% to 0.18% of tantalum, 2.0% to 2.8% of magnesium, 1.8% to 2.4% of manganese, 0.40% to 0.56% of chromium and the balance aluminum. The preparing method comprises the steps of burdening, smelting, atomizing and obtaining aluminum alloy powder; performing ball mill mixing, performing cold isostatic pressing, demolding, performing sleeving coating treatment, performing warming pressure maintaining treatment and obtaining a blank; heating, rolling, forging, and spinning forming to obtain a hub workblank; and performing heat treatment, machining and surface treatment, and obtaining a hub finished product. After-casting treatment temperature is reasonably controlled, and the alloy is uniform in crystallization, high in strength, resistant in corrosion and impact, good in heat resistance, free of bubbles and good in casing and forging performance.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy accessories, in particular to a four-needle zinc oxide whisker-reinforced aluminum alloy wheel hub and a preparation method thereof. Background technique [0002] The wheel hub is one of the important parts of the car driving system, and it is a kind of auto parts with high requirements. It has a great relationship with the driving performance, riding comfort and safety of the vehicle. [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, the cost is relatively low, and the metal fatigue resistance is very strong. However, the disadvantages of steel wheels are also relatively prominent, that is, ugly appearance, heavy weight, large inertial resistance, poor heat dissipation, and very easy t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/06C22C49/14C22C47/14B22F5/00B22F3/18B22F3/17C22C101/02
CPCC22C49/06B22F3/17B22F3/18B22F5/00B22F2003/185B22F2998/10C22C47/14C22C49/14B22F9/082B22F1/0003B22F3/04B22F2003/248
Inventor 温煜平张建兵张健锋吴杰毅
Owner DONGGUAN PINPAI IND INVESTMENT
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