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Aluminum alloy plate for motorcycle wheel hub and preparation method thereof

A technology for aluminum alloy plates and motorcycles, applied in the field of aluminum alloys, can solve the problems of poor heat treatment composition uniformity, internal stress that cannot be completely eliminated, and insufficient forging degree, etc., to achieve complete grain fragmentation, small internal stress, and reduce internal stress. The effect of stress

Active Publication Date: 2017-12-01
河南泰鸿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, motorcycle wheels are mainly produced by the casting aluminum alloy method. The cast aluminum alloy is processed into a wheel hub blank through forging, annealing, and spinning. The stress cannot be completely eliminated, and the degree of forging is not as good as that of the hot-rolled strip method, and the shortcomings of large internal stress, uneven grain breakage and coarse grains caused by small forging cannot be eliminated.

Method used

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  • Aluminum alloy plate for motorcycle wheel hub and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An aluminum alloy plate for a motorcycle wheel hub, the mass percentage of each element in the aluminum alloy plate is as follows:

[0038] Si is 0.45%, Fe is 0.3%, Cu is 0.15%, Mn is 0.1%, Mg is 0.85%, Cr is 0.18%, Zn is 0.1%, Ti is 0.03%, and the rest is Al.

Embodiment 2

[0040] An aluminum alloy plate for a motorcycle wheel hub, the mass percentage of each element in the aluminum alloy plate is as follows:

[0041] Si is 0.55%, Fe is 0.4%, Cu is 0.20%, Mn is 0.02%, Mg is 0.95%, Cr is 0.23%, Zn is 0.02%, Ti is 0.04%, and the rest is Al.

Embodiment 3

[0043] An aluminum alloy plate for a motorcycle wheel hub, the mass percentage of each element in the aluminum alloy plate is as follows:

[0044] Si is 0.50%, Fe is 0.35%, Cu is 0.18%, Mn is 0.05%, Mg is 0.90%, Cr is 0.20%, Zn is 0.05%, Ti is 0.04%, and the rest is Al.

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Abstract

The invention discloses an aluminum alloy plate for a motorcycle hub and a preparation method of the aluminum alloy plate. The aluminum alloy plate comprises the following elements: Si, Fe, Cu, Mn, Mg, Cr, Zn, Ti and Al. Pure aluminum ingots with purity greater than 99.7%, silica powder, iron powder, copper powder, chromium powder, pure magnesium ingots and aluminum titanium boron wires are subjected to smelting, casting, milling, soaking treatment, hot rolling and annealing to obtain the aluminum alloy plate for the motorcycle hub. According to the method, processes of large slab ingot casting, thick plate hot pressing and annealing are carried out obtain an aluminum alloy thick plate, the aluminum alloy thick plate is subjected to spinning to obtain the motorcycle hub product, the obtained aluminum alloy thick plate is small in internal stress and uniform in chemical ingredients, segregation is eliminated effectively, crystalline grains are broken completely, crystalline grain sizes are uniform, stopping performance is good, wear resistance is high, cavities and slag inclusion are avoided, the service life of the aluminum alloy thick plate for the motorcycle hub can be greatly prolonged, and requirements of the motorcycle aluminum alloy industry are met.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to an aluminum alloy plate for a motorcycle hub and a preparation method thereof. technical background [0002] The hub is the cylindrical, centrally mounted part of the tire that is used to support the tire. Common car wheels include steel wheels and aluminum alloy wheels. Steel wheels have high strength and are often used in large trucks. However, the weight of steel wheels increases the energy consumption of the car, and the shape is single. It does not conform to the current low-carbon and fashionable concept, and is gradually being replaced by aluminum alloy wheels. . Compared with steel wheels, the density of aluminum alloy wheels is about 1 / 3 of that of steel, that is, the weight of aluminum alloy wheels with the same volume will be 2 / 3 lighter than that of steel wheels. Statistics show that under the condition that the weight of aluminum alloy is 2 / 3 l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C1/06C22F1/047C22B21/06B21C37/02
CPCB21C37/02C22B21/066C22C1/06C22C21/08C22F1/047
Inventor 李国锋
Owner 河南泰鸿新材料有限公司
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