CN202106791U - Magnesium alloy wheel hub - Google Patents
Magnesium alloy wheel hub Download PDFInfo
- Publication number
- CN202106791U CN202106791U CN2011201871798U CN201120187179U CN202106791U CN 202106791 U CN202106791 U CN 202106791U CN 2011201871798 U CN2011201871798 U CN 2011201871798U CN 201120187179 U CN201120187179 U CN 201120187179U CN 202106791 U CN202106791 U CN 202106791U
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- Prior art keywords
- magnesium alloy
- wheel hub
- aluminium
- magnesium
- combined
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Coating By Spraying Or Casting (AREA)
Abstract
The utility model relates to a magnesium alloy wheel hub. The whole wheel hub uses a magnesium alloy base material as a main frame and is characterized in that: the magnesium alloy base material is combined with an aluminium-zinc alloy intermediate layer formed by thermal spraying; and the surface of the aluminium-zinc alloy intermediate layer is further combined with an aluminium coating formed by thermal spraying. By being combined with an aluminium-zinc alloy intermediate layer in the middle, the wheel hub not only effectively protects the main magnesium alloy material but also solves the problem about effective combination of the aluminium coating on the surface and the magnesium alloy material layer of the base body, achieves tight combination and high intensity, increases the corrosion resistance of the surface of the magnesium alloy and realizes low manufacturing cost, so that the magnesium wheel hub can be applied more widely.
Description
Technical field
The utility model relates to a kind of magnesium alloy hub that is used for the vehicle, especially a kind of magnesium alloy hub that aluminium zinc is surperficial corrosion-resistant finishes that has that is used for automobile and motorcycle.
Background technology
What present automobile and motorcycle wheel hub generally adopted is that aluminum alloy is a main body framework; Because the weight ratio aluminium of magnesium is lighter, and magnesium alloy has good damping vibration attenuation performance, so be a trend that alleviates vehicle weight with the magnesium substitution of Al; Can reduce power consumption like this, raising speed.
Magnesium and magnesium alloy have that density is low, strength-to-density ratio is high, are prone to machine-shaping, low cost and other advantages and receive people's attention and widespread use, have been successfully applied to fields such as aerospace, Automobile manufacturing and electronics technology at present.Magnesium alloy hub has the advantage that traditional wheel hub can not be compared at automobile and motorcycle, yet also has not erosion resisting problem of surface.This is owing to the active characteristic decision of magnesium metallo-; In order to improve the decay resistance of magnesium alloy; Surface protection technique commonly used has anodic oxidation treatment, chemical nickel plating, epoxy sealing, paint or enamel etc.; These surface-treated coatings are thinner, and decay resistance receives certain restriction, and all there are problems such as receiving device size constraints and blowdown pollution in plating and anodization.And only need be the simple power supply except differential arc oxidation; Other technologies must be expensive professional equipment or need under harsh conditions such as vacuum, carry out; Except the parts permission of some high added values is implemented; The general industry field is difficult to bear its great number cost, and this has just brought very big restriction to marketing.Because the existence of the problems referred to above, magnesium alloy hub is used not extensive.
Summary of the invention
The utility model is in order to solve the problem that existing magnesium alloy hub exists; A kind of magnesium alloy hub that aluminium zinc is surperficial corrosion-resistant finishes that has is provided; Through good in magnesium alloy hub surface coating associativity, intensity is high, resistant to corrosion is than thick coating, the decay resistance that improves magnesium alloy hub is cost-cutting simultaneously.
For realizing the purpose of the utility model; A kind of magnesium alloy hub that aluminium zinc is surperficial corrosion-resistant finishes that has is provided; Whole wheel hub is a main body framework with magnesium alloy basic material layer; On magnesium alloy basic material layer, be combined with the aluminum zinc series alloy interlayer that forms through thermal spraying, and also be combined with the aluminized coating that forms through thermal spraying, on aluminized coating, also be combined with decorative layer in the aluminum zinc series alloy interlayer surfaces.
Why the aluminum zinc series alloy interlayer be set be because, 660.24 ℃ of the fusing points of fine aluminium, 650 ℃ of the fusing points of magnesium, the two is very close, magnesium is inflammable, magnalium is molten apply with diffusion technique difficult; Yet the fusing point of zinc has only 419.5 ℃, and the fusing point of aluminium zinc, magnesium zinc and magnalium zinc alloy is lower, and this helps the formation of diffusion zone and the raising of coating strength.The adding of this interlayer can be used as functionally gradient material (FGM), its when heating easily and matrix form low-melting MgZn, MgZn
2Eutectic simultaneously can form aluminium zinc, magnalium zinc ternary eutectic with the aluminized coating on surface again, thus this coating because contain the alkaline corrosion in the zinc element tenable environment, acid attack in the tenable environment and sulfide corrosion because containing aluminium element simultaneously.Further, being combined with the aluminized coating that forms through thermal spraying in the aluminum zinc series alloy interlayer surfaces, is because the fire coat of aluminum alloy surface is very fine and close; Has good anti-corrosion; Magnesium and aluminium bonding properties are good, and therefore forming a certain amount of magnalium cmpd at Mg alloy surface can improve the surface electrode current potential, reduce galvanic corrosion (galvanic corrosion; Also claim contact corrosion or bimetallic corrosion) tendency, thereby the matrix magnesium alloy is played the better protection effect.
The beneficial effect of the utility model is; The aluminum zinc series alloy interlayer had both reached the effective protection to the magnesium alloy material of main part; A surperficial aluminized coating and the effective difficult problem that combines of the magnesium alloy material bed of material of matrix have been solved again; Therefore have good, the performances such as intensity is high, surperficial withstanding corrosion of binding force, and reduced manufacturing cost, be beneficial to applying of magnesium alloy hub.
Description of drawings
The structure principle chart of Fig. 1---the utility model
The specific embodiment
The embodiment of the utility model is described with reference to the accompanying drawings; As shown in the figure; Have the magnesium alloy hub that aluminium zinc is surperficial corrosion-resistant finishes, magnesium alloy basic material layer 1 is the main body framework of whole wheel hub, on the magnesium alloy basal layer, is combined with the aluminum zinc series alloy interlayer 2 that forms through thermal spraying; And the aluminized coating 3 that forms through thermal spraying is arranged in aluminum zinc series alloy interlayer 2 surface combination, on aluminized coating 3, also be combined with decorative layer 4.
Claims (1)
1. magnesium alloy hub; Whole wheel hub is a main body framework with magnesium alloy basic material layer; It is characterized in that: on magnesium alloy basic material layer, be combined with the aluminum zinc series alloy interlayer that forms through thermal spraying; And also be combined with the aluminized coating that forms through thermal spraying in the aluminum zinc series alloy interlayer surfaces, on aluminized coating, also be combined with decorative layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201871798U CN202106791U (en) | 2011-06-07 | 2011-06-07 | Magnesium alloy wheel hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201871798U CN202106791U (en) | 2011-06-07 | 2011-06-07 | Magnesium alloy wheel hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202106791U true CN202106791U (en) | 2012-01-11 |
Family
ID=45432238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201871798U Expired - Fee Related CN202106791U (en) | 2011-06-07 | 2011-06-07 | Magnesium alloy wheel hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202106791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016161559A1 (en) * | 2015-04-07 | 2016-10-13 | GM Global Technology Operations LLC | A light metal or alloy matrix workpiece having tailor coated corrosion resistant layers and methods for making the same |
| US9797036B2 (en) | 2014-04-08 | 2017-10-24 | GM Global Technology Operations LLC | Method of making corrosion resistant and glossy appearance coating for light metal workpiece |
-
2011
- 2011-06-07 CN CN2011201871798U patent/CN202106791U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9797036B2 (en) | 2014-04-08 | 2017-10-24 | GM Global Technology Operations LLC | Method of making corrosion resistant and glossy appearance coating for light metal workpiece |
| WO2016161559A1 (en) * | 2015-04-07 | 2016-10-13 | GM Global Technology Operations LLC | A light metal or alloy matrix workpiece having tailor coated corrosion resistant layers and methods for making the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120607 |