JPS5967102A - Disk wheel - Google Patents
Disk wheelInfo
- Publication number
- JPS5967102A JPS5967102A JP17879282A JP17879282A JPS5967102A JP S5967102 A JPS5967102 A JP S5967102A JP 17879282 A JP17879282 A JP 17879282A JP 17879282 A JP17879282 A JP 17879282A JP S5967102 A JPS5967102 A JP S5967102A
- Authority
- JP
- Japan
- Prior art keywords
- hub
- holes
- disk
- light alloy
- alloy
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/002—Disc wheels, i.e. wheels with load-supporting disc body characterised by the shape of the disc
- B60B3/007—Disc wheels, i.e. wheels with load-supporting disc body characterised by the shape of the disc in the intermediate section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/02—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body integral with rim
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/06—Disc wheels, i.e. wheels with load-supporting disc body formed by casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/14—Attaching disc body to hub ; Wheel adapters
- B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B5/00—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B5/00—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
- B60B5/02—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は少なくともディスク部をマグネシウム合金あ
るいはアルミニウム合金等の軽合金材料−Ｃ形成したデ
ィスクホイールに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc wheel in which at least the disc portion is made of a light alloy material such as magnesium alloy or aluminum alloy -C.
一般にディスクホイールは第１図に示゛づようにタイ°
Ｘ７１が嵌め込まれるリム部３と、ハフ４に取付【プら
れるディスク部５どを溶接等により接合゛りるかまたは
両者を一体に成形した構成とされている。イしく゛ディ
スク部５には、ハノボル用・６を挿通さぜるための複数
のハフボルト孔７が形成されている。In general, disc wheels are tied as shown in Figure 1.
The rim part 3 into which the X71 is fitted and the disc part 5 which is attached to the huff 4 are joined by welding or the like, or the two are integrally molded. A plurality of Huff bolt holes 7 are formed in the hard disk portion 5 for inserting the Hanobor type 6 therethrough.
ところで最近では車体重量の軽減等を目的と１ノで、デ
ィスクホイールにマグネシウム合金やアルミニウム合金
、すなわち所謂軽合金材料を使用することが多くなって
いる。一方前記ハブボルト６やこれに取付けられるナツ
ト８どしては鉄製のものを使用するのが通常であるから
、ディスク部をマグネシウム合金等の軽合金＋Ａ利で形
成したディスクホイールを車体に取付けて使用する際に
は、ハブポル］・孔附近において鉄製のハブポル１−や
ナツトと、ディスク部を構成するマグネシウム等の軽合
金材料とが直接接触することになる。しかるに鉄と軽合
金材料、特に鉄とマグネシウム合金どの接触部分におい
ては、両金属の電位差による腐食、すなわち局部電池生
成作用に基づく所謂電食が進行し易く、そのためマグネ
シウム合金等の軽合金材料を使用したディスクホイール
にあっては、ハブボルトやナツトとハブポル１−礼やそ
の周囲との接触部分からの腐食が急速に進行し、外観を
損うばかりでなく強度的にも問題を生じる。Recently, magnesium alloys and aluminum alloys, that is, so-called light alloy materials, have been increasingly used for disc wheels in order to reduce vehicle weight. On the other hand, since the hub bolts 6 and the nuts 8 attached thereto are usually made of iron, a disc wheel whose disc part is made of a light alloy such as magnesium alloy + A alloy is used by attaching it to the vehicle body. When doing so, the iron hubpol 1- and the nut come into direct contact with the light alloy material such as magnesium that constitutes the disk portion near the hubpol hole. However, in contact areas between iron and light alloy materials, especially iron and magnesium alloys, corrosion due to the potential difference between the two metals, that is, so-called electrolytic corrosion due to the local battery formation effect, tends to progress, so light alloy materials such as magnesium alloys are used. In such disc wheels, corrosion rapidly progresses from the contact portions between the hub bolts and nuts and the hub poles and their surroundings, which not only impairs the appearance but also causes problems in terms of strength.
−上述のような問題を解決覆るためには、ハブボルト孔
の内面やその開口＠附近に絶縁材料による１１）」−テ
ィングをｉＭ−！Ｊことが考えられるが、ハブポル１−
やナツトには大きな力が加わり、また絶縁材とマグネシ
ウム合金等の軽合金材料の熱膨張率は通帛は極端に異な
るから、実際には塗装や］−ティングを施しても繰返し
応カヤ）熱サイクルにより極めＣ簡単に剥離し−Ｃしま
い、そのため前述のよ・うな電食を防止することは困難
であった。- In order to solve and cover the above-mentioned problems, it is necessary to use insulating material on the inner surface of the hub bolt hole and around its opening. J may be considered, but hubpol 1-
A large force is applied to the bolts and nuts, and the thermal expansion coefficients of insulation materials and light alloy materials such as magnesium alloys are extremely different, so in reality, even if painted or tinged, there will be repeated exposure to heat. It is extremely easy to peel off due to the cycle, and therefore it is difficult to prevent the electrolytic corrosion as described above.
この発明は以上の事情に鑑みＣなされたもので、マグネ
ジ・クム合金等の軽合金材料からなるディスク部を備え
たディスクホイールにおいＣ１そのハブボルト孔と鉄製
のハブボルトやナラ１〜との接触部分の電食を有効に防
１トすることを目的とするものである。This invention has been made in view of the above circumstances, and in a disc wheel equipped with a disc portion made of a light alloy material such as a magnetic screw/cum alloy, the contact portion between the hub bolt hole and the iron hub bolt or nut 1. The purpose is to effectively prevent electrolytic corrosion.
すなわちこの発明のディスクホイールは、マグネシウム
合金等の軽合金材料からなるディスク部のハブボルト孔
周囲にｆｌａｇを埋め込／ｖ ’Ｔ：そのハシポルｌ一
孔周囲部分を軽合金／Ｉ維複合材で構成することとし、
かつハブボルト孔内面およびナツト座面に絶縁層として
のセラミック溶ＤＪ層を形成したことを特徴とするもの
であり、このようにセラミック溶射層を形成することに
Ｊ一つてハブポル１−やナツトとハブポル１ル孔内面ど
の間を電気的に絶縁して電食の発生を防止し、しかもそ
のセラミック溶射層の下地を軽合金／繊維複合材どり゛
ることによっＣセラミック溶射層の剥卸をイ１効に防止
したちのＣある。That is, the disc wheel of the present invention has a flag embedded around the hub bolt hole of the disc part made of a light alloy material such as a magnesium alloy. and
It is also characterized by forming a ceramic melted DJ layer as an insulating layer on the inner surface of the hub bolt hole and the nut seating surface.By forming the ceramic sprayed layer in this way, the hub pole 1-, the nut and the hub pole are By electrically insulating the inner surface of each hole to prevent electrolytic corrosion, and by using a light alloy/fiber composite material as the base for the ceramic sprayed layer, stripping of the C ceramic sprayed layer is facilitated. There is a C that prevents one effect.
以下この発明のディスクホイールをさらに詳細に説明す
る。The disc wheel of the present invention will be explained in more detail below.
第２図はこの発明のディスクホイールの一例の要部を示
すものＣあり、マグネシウム合金等の軽合金材料からな
るディスク部５のハブボルト？Ｌ７の周囲にはｍ維９が
埋込まれてその部分が軽合金／繊Ｈ複合材１０で構成さ
れており、かつハブボルト孔７内面およびハブボルト孔
７ ｔｉｎ Ｏ端周縁部すなわちナツト座面１１には、
ヒラミック溶射層１２が形成されている。FIG. 2 shows the main parts of an example of the disc wheel of the present invention.The hub bolt of the disc part 5 is made of a light alloy material such as magnesium alloy. M fibers 9 are embedded around L7, and that part is made of a light alloy/fiber H composite material 10, and the inner surface of the hub bolt hole 7 and the peripheral edge of the hub bolt hole 7 tin O end, that is, the nut seat surface 11. teeth,
A helical sprayed layer 12 is formed.
前記繊柑９どしては、４１合金／織雄褐合材の熱膨張係
数を軽合金材料単独の場合よりも小さくして、セラミッ
ク溶射層の熱膨張係数に近付けるため、軽合金材Ｆ１よ
りも熱膨張係数が小さいものを使用することが望ましい
が、セラミック系の繊組は通常はいずれもその熱膨張係
数が軽合金材料よりも小さく、したがって熱膨張係数の
観点からはセラミック系１１のいり゛れを使用し〔心良
い。またｍｌの選択にあたっては、ハブボルトに締付け
られるナツトによるナツト座面の摩耗やへたりをもあわ
ぜＣ防止するべく、耐摩耗性や耐クリープ強度の優れた
ものを選択覆ることが望ましい。In order to make the thermal expansion coefficient of the 41 alloy/Orio brown composite material smaller than that of the light alloy material alone and to bring it closer to the thermal expansion coefficient of the ceramic sprayed layer, the above-mentioned Senkan 9 is made to have a thermal expansion coefficient smaller than that of the light alloy material F1. It is desirable to use materials with a small coefficient of thermal expansion, but ceramic fibers usually have a coefficient of thermal expansion smaller than that of light alloy materials. Use ゛re [heart is good]. In addition, when selecting the ml, it is desirable to select one with excellent abrasion resistance and creep resistance in order to prevent the nut seating surface from being worn or set by the nut tightened to the hub bolt.
具体的には、短繊維ｂｂ＜はホイスカ、あるいは長繊維
のいずれもが使用可能Ｃあり、短繊維もしくはボイス力
としては、アルミブー（八Ｑ２０３ ）短繊釘Ｌ１ ア
ルミナ−シリカ（八〇２０３−８ｉＯ２）短繊維、炭化
ケイ素（Ｓｉ Ｃ）ボイス力、塞化ケイ素（Ｓｉ３Ｎ４
）小イス力、チタン酸カリ （Ｋ２ｒ； ｅ （−）
＋３ ）ボイス力等を使用することが望ましく、また長
繊維としＣは炭素長繊維、アルミナ長繊維、ＳｉＣ長織
雑等を使用することが望ましい。Specifically, for short fiber bb<, either whisker or long fiber can be usedC, and for short fiber or voice strength, aluminum boo (8Q203), short fiber nail L1, alumina-silica (80203-8iO2) ) Short fiber, silicon carbide (Si C) voice force, silicon occlusion (Si3N4
) Small chair force, potassium titanate (K2r; e (-)
+3) It is desirable to use voice force, etc., and as the long fiber C, it is desirable to use carbon long fiber, alumina long fiber, SiC long woven cloth, etc.
一方セラミック溶射胴１２は、要は表面に電気的絶縁性
を付与するためのちのである力）ら、電気的絶縁性に優
れていれば良いが、このｊｆｆｉ ｈ１溶！Ｖ１層の強
度あるいは下地の軽合金、／ 唱＠複合材とのなじみ易
さ等もセラミック材の選択に当って考慮する必要がある
。これらの観点から、セラミ・ンク＞？４１１１を構成
するセラミック材としては、７ｒ Ｏ２、八Ｑ２０３
、）、４１１０．０ｒ２０３等を用イルξとが望ましい
。また下地の軽合金／繊維複合材の上（こ予め中間下地
層として、ＮＨ−Ｃｕ含金、Ｎｉ−△Ｑ合金、トｊｉ−
Ｃｕ−八へ合金、Ｎｉ Ｃｕ−へＱ−Ｙ合金のｉｎを
溶射により形成しＣおけば、セラミ・ンク溶用層の接合
強度がさらに向トする。On the other hand, the ceramic spraying barrel 12 only needs to have excellent electrical insulation properties, since it is necessary to provide electrical insulation properties to the surface, but this jffi h1 melt! It is also necessary to consider the strength of the V1 layer and its compatibility with the underlying light alloy and composite material when selecting the ceramic material. From these points of view, Cerami Nku>? Ceramic materials constituting 4111 include 7r O2, 8Q203
, ), 4110.0r203, etc. are preferably used. Moreover, on the light alloy/fiber composite material (as an intermediate base layer), NH-Cu alloy, Ni-△Q alloy,
If Cu-8 alloy and Ni-Cu-Q-Y alloy are formed by thermal spraying, the bonding strength of the ceramic-ink layer will be further improved.
セラミック溶ｔＪｉ層の厚みは、１０−〜５００ｊ匍程
度とすることが望ましい。１０ＬＩｍ未満で（ま絶縁性
および溶射被膜強度、耐久性が得られな（１おそれがあ
り、また５ ００ Ｌ’ｍを越えて厚くしても溶射に要
する時間が長時間化していたずらにコストＦ昇を招くだ
けである。The thickness of the ceramic molten tJi layer is preferably about 10-500 cm. If it is less than 10 L'm, there is a risk that insulation, thermal spray coating strength, and durability may not be obtained (1), and if it is thicker than 500 L'm, the time required for thermal spraying will become longer and the cost will be increased. It only invites advancement.
なお第２図の例においてはテーパーナツトを使用しない
型式のディスクホイールについて示したが、テーパーナ
ラ１−を使用する型式のディスクホイールにこの発明を
適用し得ることはもちろんである。Ｊなわち例えば第３
図に示すようにハブボルト孔７にテーパーナツトを受け
るためのナラ１〜座面としてのテーパー面７Ｂが形成さ
れている場合、前記同様にハブボルト・孔７の周囲に繊
維９を埋め込／υでその部分を軽合金／ｆｌＧｌｌｔ複
合材１０で構成し、かつハブポル１〜７Ｌ ７の内面す
なわちハブポルｌ−自身が接するストレー１〜面７Δお
よびテーバ−ナラ］〜が接でるナラ１−座面とし−Ｃの
テーパー面７Ｂの両者の表面にセラミック溶Ｑ’ｌ ｌ
Ｆ４１２を形成すれば良い。Although the example in FIG. 2 shows a type of disc wheel that does not use a taper nut, it goes without saying that the present invention can be applied to a type of disc wheel that uses a tapered nut. J, for example, the third
As shown in the figure, when the hub bolt hole 7 is formed with a taper surface 7B for receiving the taper nut, fibers 9 are embedded around the hub bolt hole 7 in the same manner as described above. The part is made of a light alloy/flGllt composite material 10, and serves as the inner surface of the hub poles 1 to 7L 7, that is, the inner surface of the hub poles 1 to 7L 7, that is, the inner surface of the hub poles 1 to 7L, which is in contact with the straight 1 to the surface 7Δ, and the seat surface of the oak 1 to which the taber oak comes into contact. Ceramic melt Q'l l on both surfaces of tapered surface 7B of C
It is sufficient to form F412.
またｌ１ｔ１ｔ９は第２図あるいは第３図に示されるよ
うにハブポル１〜孔７の周囲のみに埋め込ｌυでも良い
が、場合によってはディスク部５の全体に埋め込ｌυで
も良い。Further, l1t1t9 may be embedded lυ only around the hub ports 1 to 7 as shown in FIG. 2 or 3, but may be embedded lυ in the entire disk portion 5 depending on the case.
以上のようなディスクホイールを車体に装備した際には
、ハブボルトやナラｌ〜はセラミック溶射層に接するこ
とになる。このセラミック溶射層は絶縁体であるから、
ディスクホイールの基材としてマグネシウム合金が使用
されていても、そのマグネシウム合金とＷ４製のハブポ
ル１−やナラ１〜との間が絶縁され、したがって電食が
生じることが有効に防止される。またセラミック溶射層
はその下地との結合強度が極めて高く、しかもその下地
が軽合金単独の場合と比較して熱膨張係数が小さい軽合
金／繊維複合層となっているため、セラミック層とその
下地層との熱膨張係数の差が小さく、したがって使用時
の繰返し応力や熱→ノイクルによってセラミック溶射層
が下地層から剥ｆｉｔ覆るおそれが少ない。When a vehicle body is equipped with a disc wheel like the one described above, the hub bolts and nuts come into contact with the ceramic sprayed layer. Since this ceramic sprayed layer is an insulator,
Even if a magnesium alloy is used as the base material of the disc wheel, insulation is provided between the magnesium alloy and the W4 hub poles 1- and Nara 1-, so that electrolytic corrosion is effectively prevented. In addition, the ceramic sprayed layer has extremely high bonding strength with its base, and the base is a light alloy/fiber composite layer with a smaller coefficient of thermal expansion than a light alloy alone. The difference in coefficient of thermal expansion with the geological layer is small, so there is little risk that the ceramic sprayed layer will peel off from the base layer due to repeated stress or heat → noise during use.
次にこの発明のディスクホイールを製造する方法につい
て説明する。Next, a method for manufacturing the disc wheel of the present invention will be explained.
この発明のディスクホイールを製３Ｗするに当っては、
先ず例えば第４図に示づようにハブボルト孔に対応する
中空円筒状のｆｉ ｅｌｆ成形体１３Ａ、あるいは第５
図に示すようにディスク部中央部分に対応しかつハブポ
ル１〜孔に対応づる複数の貫通孔１４を有する略円板状
のｍ帷成形体１３Ｂを用意する。そしてこの繊維成形体
１３Ａもしくは１３Ｂを第６図もしくは第７図に示すよ
うに高圧鋳造用鋳型１５内の所定位置、づなわちハブボ
ルト孔形成用のビン１６にセットし、その状態で鋳型内
にマグネシウム合金溶湯等の軽合金ＮＷＡを注渇し、か
つその溶湯に加圧プランジャ１７によって ５００〜１
５００ｋＧ／ ｃシ程度の高圧を加えていわゆる高圧鋳
造を行い、これにより軽合金溶湯を前記＃ｖ！ＡＭ成形
体の各Ｉｌ帷間の空隙に密に充填させ、かつ凝固終了ま
で溶湯の加圧を保持し、凝固後に鋳型から取外し、適宜
熱処理を行う。次いで、＃Ａ雑と軽合金とが複合一体化
されているハブポル１へ孔内面およびナツト座面にセラ
ミック材を溶射させて、セラミック溶射層を形成する。In manufacturing the disc wheel of this invention in 3W,
First, as shown in FIG. 4, a hollow cylindrical fielf molded body 13A corresponding to the hub bolt hole or a fifth
As shown in the figure, a substantially disc-shaped m-width molded body 13B having a plurality of through holes 14 corresponding to the central portion of the disc portion and corresponding to the hub ports 1 to 1 is prepared. Then, as shown in FIG. 6 or FIG. 7, this fiber molded body 13A or 13B is set in a predetermined position in a high-pressure casting mold 15, that is, in a hub bolt hole forming bin 16, and in that state, it is placed in the mold. 500 to 1
A high pressure of about 500kG/c is applied to perform so-called high-pressure casting, thereby turning the molten light alloy into the #v! The molten metal is densely filled into the gaps between the respective walls of the AM molded body, and the pressure of the molten metal is maintained until the end of solidification, and after solidification, it is removed from the mold and heat treated as appropriate. Next, a ceramic material is thermally sprayed onto the inner surface of the hole and the nut seating surface of the hub pole 1 in which #A miscellaneous material and light alloy are integrally integrated, thereby forming a ceramic thermally sprayed layer.
前述のような高圧鋳造法の代りに、型を高速で回転させ
て遠心力により軽合金溶湯をｌｌ紺間の空隙に充填させ
る所謂遠心鋳造法や、その他の加圧鋳造法を適用しても
良い。Instead of the high-pressure casting method mentioned above, it is also possible to apply the so-called centrifugal casting method, in which the mold is rotated at high speed and the molten light alloy is filled into the gaps between the two by centrifugal force, or other pressure casting methods. good.
さらに、繊維として特に％Ｕ ｍ雑もしくはホイスカを
使用する場合には、前述の如く繊維を予め成形しておく
代りに、その短繊維もしくはボイス力を、鋳型内におけ
るハブポル１〜孔形成用めビンの表面やその近傍の鋳型
内面に塗布または吹付けておき、その状態で前述のよう
な高圧鋳造や遠心ド造、その他の加圧鋳造を適用しても
、この発明のディスクホイールを１ｑることができる。Furthermore, when using %Um miscellaneous fibers or whiskers as fibers, instead of pre-forming the fibers as described above, the short fibers or voice force can be used in the mold from the hub pore 1 to the pore-forming bin. Even if it is applied or sprayed onto the surface of the mold or the inner surface of the mold in the vicinity thereof, and then the above-mentioned high-pressure casting, centrifugal molding, or other pressure casting is applied in that state, the disc wheel of the present invention can be manufactured by 1q. I can do it.
一方、セラミック材の′ｍ射方法としては、プラズマ溶
射、火炎溶射等、任意の溶射法を採用覆ることができる
が、溶射層の対剥離強度の点からは、プラズマ法が有利
である。On the other hand, as the method for spraying the ceramic material, any thermal spraying method such as plasma spraying or flame spraying can be used, but the plasma method is advantageous in terms of the peel strength of the sprayed layer.
以下にこの発明の実施例を２匁。Below are two examples of this invention.
実施例
直径３．２ｐ…のアルミナ短ｍ紺を、体積率１０％で外
径１４０ｍｍ、内径１４ｍｍ、長さ３０ｍｍノ第４図に
示すような中空円筒状の１ｉｆｔ成形体１３Ａに成型し
た。これを第６図に示される高圧鋳造用鋳型１５のハブ
ボルト形成用のビン１６にセットした。Example Alumina short m navy blue material with a diameter of 3.2p was molded at a volume ratio of 10% into a hollow cylindrical 1ift molded body 13A having an outer diameter of 140 mm, an inner diameter of 14 mm, and a length of 30 mm as shown in FIG. 4. This was set in a hub bolt forming bin 16 of a high pressure casting mold 15 shown in FIG.
続いて６９０℃のＪ Ｉｓ 、ＭＣ５種のマグネシウム
合金溶湯を鋳型内に注湯し、加圧プランジｔ１７によっ
て加圧力１８００ｋＧ／ｃ♂にて加圧して、凝固まで保
持した。１ｑられたディスクホイール粗材をＴ６熱処理
後、機械加工して５．５Ｊ Ｘ １ ／ｌインヂのディ
スクホイールとした。つづいにのディスクホイールのハ
ブホルミル孔およびナラ１〜座面に５ｉａＮａをプラズ
マ溶射法にて１００声の厚さに溶射した。Subsequently, a 690° C. J Is, MC5 type magnesium alloy molten metal was poured into the mold, and was pressurized with a pressure of 1800 kG/c♂ by a pressure plunger t17, and held until solidification. After T6 heat treatment, 1 q of disc wheel rough material was machined into a 5.5 J x 1 /l inch disc wheel. Next, 5iaNa was sprayed to a thickness of 100 degrees by plasma spraying on the hub formyl hole and the neck 1 to seat surface of the disc wheel.
上述のようにして（ｑられたディスクホイールを車体の
ハブに装着し、ＪＩＳ規定に準じた塩水噴霧試験を行っ
たところ、ハブボルトおよびナラ１〜とディスクの接触
部における電食は全く認められなかった。また溶射セラ
ミック層の剥鮒や割れは皆無であった。When the disc wheel prepared as described above was attached to the hub of the car body and a salt spray test was conducted in accordance with JIS regulations, no electrolytic corrosion was observed at the contact area between the hub bolts and the hub bolts 1~ and the disc. There was also no peeling or cracking of the sprayed ceramic layer.
以上の説明で明らかなようにこの発明のディスクホイー
ルは、セラミック溶射層によってハフポル１−およびナ
ラ１−との間が電気的に絶縁されるため、マグネシウＩ
＼合金等、網材料との接触面で電食が生じ易い軽合金祠
１１を用いている←こもかかわらず、ハブポル１〜＼゛
）ナツトどの接触面におりる電食を有効（に防止でき、
またその絶縁作用をもたら′１ｊｔ？ラミック溶射府と
その下地の軒合金／楳超複合層との結合強度が高くかつ
両者の熱膨張係数の差が小さいため、繰返し応力や熱υ
イクルによってセラミック溶射層が剥離したりに１れた
りするおそれが少なく、したがって電食防止機能を長時
間維持できる等の効果が得られる。As is clear from the above description, the disc wheel of the present invention has a ceramic sprayed layer that electrically insulates between the Huffpol 1- and the Nala 1-.
＼Using light alloy 11, which tends to cause electrolytic corrosion on the contact surface with mesh materials such as alloys ←Despite this, hubpol 1~＂゛) can effectively (prevent) electrolytic corrosion on the contact surfaces of nuts etc. ,
It also provides an insulating effect. The bonding strength between the lamic sprayed foam and the underlying eaves alloy/Ume super composite layer is high, and the difference in thermal expansion coefficient between the two is small, so it is possible to reduce repeated stress and heat υ.
There is little risk that the ceramic sprayed layer will peel off or break down due to the cycle, and therefore the effect of maintaining the electrolytic corrosion prevention function for a long time can be obtained.
第１図は従来のディスクホイールの一例を示Ｊ縦断側面
図、第２図および第３図はそれぞれこの発明のディスク
ホイールの一例の要部を示す拡大縦断側面図、第４図お
よび第５図はそれぞれこの発明のディスクホイールの製
造に用いられる繊維成形体の一例を示す斜視図、第６図
および５第７図はそれぞれこの発明のディスクホイール
の製造方法の一例を示すための鋳型の縦断面図である。
５・・・ディスク部、 ７・・・ハブポル１〜孔、 ９
・・・繊維、 １０・・・軽合金／繊維複合材、１１・
・・ナラ１〜座面、 １２・・・セラミック溶射層。
出願人 ｌ−ヨタ自動車株式会社
代理人 弁理士 印 １）武 久
（ばか１名）
第１図
第２図
第３図
第６図FIG. 1 is a longitudinal sectional side view showing an example of a conventional disc wheel, FIGS. 2 and 3 are enlarged longitudinal sectional side views showing essential parts of an example of the disc wheel of the present invention, and FIGS. 4 and 5, respectively. 6 and 5 are respectively perspective views showing an example of a fiber molded body used in manufacturing the disc wheel of the present invention, and FIGS. It is a diagram. 5...Disc part, 7...Hub pole 1~hole, 9
...Fiber, 10...Light alloy/fiber composite material, 11.
... Nara 1 ~ Seat surface, 12 ... Ceramic sprayed layer. Applicant L-Yota Jidosha Co., Ltd. Agent Patent Attorney Seal 1) Hisashi Take (one idiot) Figure 1 Figure 2 Figure 3 Figure 6
Claims (1)
ルにＪ３いて、前記ディスク部のハブポル１〜孔の周囲
に繊維を埋込／υでイの部分を軽合金／′１４ｕ Ｎ
Ｎ合材で構成し、かつハブポル１へ孔内面およびプツト
座面にレラミック溶剣層を形成したことを特数とり−る
テ゛イスクボイール。A disc wheel equipped with a disc part made of a light alloy material is mounted on a J3 disc, and fibers are embedded around the hub holes 1 to 1 of the disc part.
This theme boiler is made of N composite material and has a special feature in that a relamic molten sword layer is formed on the inner surface of the hub port 1 and the seat surface of the hub port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17879282A JPS5967102A (en) | 1982-10-12 | 1982-10-12 | Disk wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17879282A JPS5967102A (en) | 1982-10-12 | 1982-10-12 | Disk wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5967102A true JPS5967102A (en) | 1984-04-16 |
Family
ID=16054721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17879282A Pending JPS5967102A (en) | 1982-10-12 | 1982-10-12 | Disk wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5967102A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6295901U (en) * | 1985-12-09 | 1987-06-18 | ||
| US5401079A (en) * | 1991-08-26 | 1995-03-28 | The Goodyear Tire & Rubber Company | Heat transfer preventing lug hole sleeve inserts for a plastic wheel |
| US5409555A (en) * | 1992-09-30 | 1995-04-25 | Mazda Motor Corporation | Method of manufacturing a forged magnesium alloy |
| US5902424A (en) * | 1992-09-30 | 1999-05-11 | Mazda Motor Corporation | Method of making an article of manufacture made of a magnesium alloy |
-
1982
- 1982-10-12 JP JP17879282A patent/JPS5967102A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6295901U (en) * | 1985-12-09 | 1987-06-18 | ||
| US5401079A (en) * | 1991-08-26 | 1995-03-28 | The Goodyear Tire & Rubber Company | Heat transfer preventing lug hole sleeve inserts for a plastic wheel |
| US5409555A (en) * | 1992-09-30 | 1995-04-25 | Mazda Motor Corporation | Method of manufacturing a forged magnesium alloy |
| US5902424A (en) * | 1992-09-30 | 1999-05-11 | Mazda Motor Corporation | Method of making an article of manufacture made of a magnesium alloy |
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