JPS601002A - Wheel for vehicle - Google Patents

Abstract

PURPOSE:To improve resistance to wear, resistance to corrosion, and resistance to flaw, by a method wherein, in a vehicle wheel with a disc and a rim, an inorganic matter flame-spraying layer is formed on a rim flange, a disc or a bead seal. CONSTITUTION:A flame-spraying layer 4, made of a material, which is selected from an inorganic matter, such as metal, ceramic, a glass material, an enamel material, for example, 1 or 2 types of particles, selected from metallic particle containing metallic particle, such as Al, Ti, and an inorganic metallic compound, such as Al2O3, and inorganic metallic compound particle, are formed on a whole portion ranging from a disc 2 to the outer surface of a rim flange 6. This permits improvement of resistance to exfoliation, resistance to chamicals, resistance to weather, and resistance to rust and corrosion.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle wheel, and particularly to a vehicle wheel with improved rust and corrosion resistance and hot water resistance.

In general, wheels for passenger cars, motorcycles, industrial vehicles, and other vehicles that are made of iron or aluminum alloy have the drawback of being easily corroded and damaged.

Attempts have been made to prevent corrosion of vehicle wheels and the occurrence of scratches thereon.However, since such resin coatings cannot have high wear resistance and scratch resistance, for example, , due to friction between the rubber tire and the bead seat and rim flange, or due to small gravel caught between them, it is unavoidable that the bead seat and rim flange will wear out relatively early, and the disc may There is a problem that it cannot be effectively protected against pebbles and other objects that collide with it, and that it cannot be protected against contact with curbs, stones, etc. on the outer surface of the rim flange.Furthermore, the resin coating is ,
Since it peels off easily and has low chemical resistance and weather resistance, there is a problem in that it is not possible to maintain the corrosion resistance of vehicle wheels over a long period of time.

The present invention provides a vehicle wheel that advantageously solves the problems of the prior art.

The vehicle wheel of the present invention particularly includes a rim flange,
By providing a sprayed inorganic layer on at least one part of the disc or bead seat, the surface hardness of the vehicle wheel is increased to sufficiently prevent early wear and the generation of hot water there; The anti-rust and anti-corrosion properties of vehicle wheels are significantly improved by significantly improving the peel resistance, chemical resistance and weather resistance of vehicular wheels.

Moreover, when an inorganic sprayed layer is provided on the outer surface of the disk or rim flange, the +JS option of the inorganic material
H (You can enhance the beauty of the wheel by selecting the color, and also make the tire symbol of the bead seat) (1
(If a sprayed layer is provided, the sprayed layer and the tire bead usually form a matte surface)! j” FJ power 1
．． Fifth, it is possible to sufficiently prevent the tire from slipping against the bead seat and falling off from the bead seat, especially when the internal pressure of the tire decreases. In addition, if the tire to be mounted on the rim is a tubeless tie and there is a risk of air leakage between the bead seat and the tire bead, an inorganic sprayed layer can be provided on the inner side of the bead toe of the bead seat. At least the tire bead portion can be effectively prevented from falling off the bead seat.

The present invention will be explained below based on the drawings.

FIG. 1 is a partial sectional view showing an embodiment of the present invention.
In the figure, 1 indicates the entire vehicle wheel, and 2 and 3 indicate the disc and rim, respectively.

An inorganic sprayed layer 4 is directly provided on at least one side of the vehicle wheel 1, here the side away from the vehicle body, over the entire area from the disk to the outer surface of the rim flange.

Since this thermal sprayed layer 4 has a higher hardness than the material of the vehicle wheel l itself, it significantly increases the wear resistance and superiority of the vehicle wheel l, and the layer 4 is formed by thermal spraying of an inorganic material. Because it has sufficient peeling resistance, chemical resistance, and weather resistance, it is used as a vehicle wheel 1.
The anti-rust and anti-corrosion properties of the steel will also be improved.

Here, the inorganic sprayed layer 4 is made of a material selected from inorganic materials such as metals, ceramics, glass, and waxy materials, such as metal powders, inorganic metal compound powders, metal powders,
It is preferable to form by thermal spraying one or more types of powder and granules selected from powders and granules of inorganic metal compounds.

In this case, the metal powder is, for example, A/.

Ti, B, Or, Si, W% Cro, Nis Zns
Examples include powders of Y or alloys thereof.

In addition, examples of powders and granules of metal compounds include the above-mentioned oxides, nitrides, carbides, silicides,
Examples include powdery substances such as borides. More specifically, the gold xrg rvx compounds include Al2O8, TiO2, B
2O3,0r208.5102, WO2 etc. can be used,
Metallic compounds include AzN, TiN, 5i8N
,, ZrN, HfN, VN, TaN.

Be3N2 etc. can be used, and the metal carbide is TiC.

5j-c S WC, ZrC, HfG, VC, Tag
! , NbC, BiO, etc. are used, and the metal silicide is TiSi.

MOS, zrSi, vsi, temple can be used, metal boride is A/! B, TiB, SiB, W
B, WB2, ZrB2, and TaB can be used. Historically, metal powders containing inorganic metal compounds include:
For example, a mixture of the above-mentioned metal powder and inorganic metal compound powder can be used.

These inorganic materials can be used not only in one layer, but also in several layers of the same or different types to form the inorganic sprayed layer 4. In particular, when hot water resistance and abrasion resistance are strongly required. For this purpose, chromium oxide, alumina titania, etc. in these forest materials can be used.

Furthermore, in order to improve the aesthetic appearance of the vehicle wheel 1, chromium oxide is used when the required color is green, cobalt oxide is used when the color is blue, and lead oxide is used when the color is red. , materials can be appropriately selected depending on the color. Further, by providing an inorganic sprayed layer 4 of chromium, nickel, etc. on an iron wheel, the appearance of an aluminum alloy wheel can be provided.

Here, if we pay particular attention to the rust-preventing and anti-corrosion effect of the inorganic material sprayed layer 4, it is possible to combine the above-mentioned inorganic material with a synthetic TM resin such as nylon or epoxy, and to form a pre-formed synthetic resin coating. providing a sprayed layer 4 on the layer;
Alternatively, it is preferable to provide a synthetic resin coating layer on the thermal spray layer 4.

Although the particle size of the above-mentioned powder is not necessarily limited, it is preferable to have an average particle size of 1 to 100 microns, particularly 5 to 20 microns, in order to achieve the purpose of the present invention.

Furthermore, there is no particular restriction on the method of thermal spraying the above-mentioned powdery material, and any method capable of thermally spraying the powdery material may be used, such as a method using oxygen-combustible gas or a method using a plasma arc. , the flame temperature is 2000~6 tl +1
Treatment at a temperature of 0°C is most preferred in achieving the objectives of this invention.

There is no particular restriction on the thickness of the inorganic sprayed layer 4, but if the main purpose is wear resistance and superiority, for example, within the range of U-OU5mm to 51ntn, it may be relatively thick, and it may be necessary to improve the aesthetic appearance. If this is the main purpose, it can be made relatively thin.

5 (l) As mentioned above, the organic material sprayed layer 4 can of course be formed on the surface of the vehicle wheel l, but especially when forming the sprayed layer 4 of an inorganic metal compound, In order to improve the peeling resistance of the thermal sprayed layer 4 to the wheel surface and further improve the antirust and corrosion prevention effect of the vehicle wheel l, an intermediate adhesion-retaining layer is provided between the wheel surface and the inorganic thermal sprayed layer 4. It is "preferable" to provide a layer.

Examples of such an intermediate layer include Ni, Al/MO,
Examples include thin layers of metals such as Qr, or alloys thereof,
In particular, a Ni-A1 alloy thin layer is highly effective in improving adhesiveness and is therefore preferably used. The method of forming this intermediate layer is not particularly limited, and may be formed by welding, for example. Furthermore, there is no limit to the thickness of the intermediate layer, and even a thin layer of about 0.1 μm has an effect as an adhesion-retaining layer;
A thickness of 0μ or more is preferred.

FIG. 2 is a partial sectional view showing an embodiment of the pond according to the present invention, in which the bead sheet 5 of the rim 8, more precisely, the tire side surface of the bead sheet 5, is coated with materials, particle sizes, and thermal spraying methods that are appropriately selected. An inorganic sprayed layer 4 similar to that described above is provided.

The thermal sprayed layer 4 here also provides excellent scratch resistance, abrasion resistance, and anti-rust/corrosion properties of the bead sheet 5, and since its surface has a satin finish, it is compatible with the tire bead portion seated thereon. It acts to increase frictional force. Therefore, especially when the tire internal pressure is low, it is possible to effectively prevent the vehicle wheel l from slipping against the tire, and also to completely prevent the tire bead portion from falling off from the bead seat 5.

In this example, the inorganic sprayed layer 4 is applied not only to the bead sheet 5 but also to the inside of the rim flange 6 +rt.
It can also be provided across the mouth, thereby further increasing the frictional force against the tire.

In addition, if the tire to be assembled on the rim 3 is a tubeless tire, there is a risk of air leakage from the tire bead by seating it on the inorganic sprayed layer 4 with a large assembly degree. In such a case, the position of the bead seam is located within l1 of the contact position of the bead seam and the bead toe.
By providing the inorganic sprayed layer 4 in the ll region,
It is preferable to prevent at least the tire bead portion from falling into the rim well 7.

Although not shown, the inorganic sprayed layer 4 can be provided only on the disk 2 or on the outer surface of the rim flange, and this can also provide the same effect as described above.

Therefore, according to the present invention, an inorganic sprayed layer is provided directly or indirectly on at least one part of the rim flange, disk, or bead seat, and the sprayed layer is made of a general material such as iron or aluminum alloy. In addition to having a higher hardness (harder than the wheel material), it also has a higher peel strength than synthetic resin coatings, making it an extremely practical material that can extremely effectively protect vehicle wheels from wear, scratches, rust, etc. Profit is brought.

Moreover, if the inorganic sprayed layer is provided on at least one side of the vehicle wheel, in whole or in part, it can improve the aesthetic appearance of the wheel, and if it is provided on the outer circumference of the bead seat, it can improve the appearance of the wheel. By increasing the frictional force with the bead, slipping and falling off can be effectively prevented.

[Brief explanation of the drawing]

Figure 1.2 shows an embodiment of the invention, Blr,
It is a division +fsI diagram. 1...Vehicle wheel 2...Disc 3゛ rim"・
4... Inorganic sprayed layer'5... Bead sheet 6... Rim flange '4'J'
g'l Applicant Brideston Tires Ltd. Figure 1 Figure 2

Claims (1)

[Scope of Claims] L. A vehicle wheel comprising a disc and a rim, comprising: an inorganic sprayed layer provided on at least one of the rim flange, disc, or bead seat. The vehicle wheel according to item 1, wherein the inorganic soluble layer is formed on the adhesive holding layer.