JPH04312220A - Disc rotor - Google Patents
Disc rotorInfo
- Publication number
- JPH04312220A JPH04312220A JP7902291A JP7902291A JPH04312220A JP H04312220 A JPH04312220 A JP H04312220A JP 7902291 A JP7902291 A JP 7902291A JP 7902291 A JP7902291 A JP 7902291A JP H04312220 A JPH04312220 A JP H04312220A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- disc rotor
- disc
- rotor
- hard
- 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.)
- Granted
Links
- 239000010410 layer Substances 0.000 claims abstract description 43
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 239000002344 surface layer Substances 0.000 claims abstract description 5
- 239000011651 chromium Substances 0.000 claims description 18
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical group C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 229910001018 Cast iron Inorganic materials 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はディスクローターに係り
、特に軽量かつ高強度で、耐久性に優れ、自動車用ディ
スクブレーキ機構等のディスクローターの軽量化に有効
なディスクローターに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc rotor, and more particularly to a disc rotor that is lightweight, has high strength, has excellent durability, and is effective in reducing the weight of disc rotors such as those used in automobile disc brake mechanisms.
【０００２】0002
【従来の技術】従来、自動車用ディスクローターは、安
価であること、材料の信頼性が高いこと、製造が容易で
あることなどの点から、鉄（鋳鉄）製のものが主流とさ
れている。[Prior Art] Conventionally, disc rotors for automobiles have been mainly made of iron (cast iron) because of their low cost, high reliability of materials, and ease of manufacture. .
【０００３】ところで、昨今、地球環境保全の面から、
自動車関連分野においても、省エネルギー化を図る動き
があり、この対応策として、自動車重量の軽量化が大き
な課題となっている。このため、ディスクローターにつ
いても、その軽量化が望まれている。[0003] Nowadays, from the perspective of global environmental conservation,
In the automobile-related field, there is also a movement towards energy conservation, and as a countermeasure to this, reducing the weight of automobiles has become a major issue. Therefore, it is desired to reduce the weight of disc rotors as well.
【０００４】0004
【発明が解決しようとする課題】従来の鉄製自動車用デ
ィスクローターは、■重量が重い。■錆易い。といった
欠点があり、■は自動車の燃費、加速性、慣性力に大き
な影響を与え、また、■は錆のため制動力、制動メカニ
ズムにとって欠点となり、省エネルギー化に逆行するも
のである。[Problems to be Solved by the Invention] Conventional iron disc rotors for automobiles are heavy. ■Easy to rust. There are drawbacks such as (2), which has a large effect on the fuel efficiency, acceleration, and inertia of the automobile, and (2), which causes rust, which is a drawback to the braking force and braking mechanism, and goes against energy conservation.
【０００５】本発明は上記従来の問題点を解決し、軽量
かつ高強度で耐久性に優れたディスクローターを提供す
ることを目的とする。An object of the present invention is to solve the above-mentioned conventional problems and provide a disc rotor that is lightweight, has high strength, and has excellent durability.
【０００６】[0006]
【課題を解決するための手段】請求項１のディスクロー
ターは、アルミニウム又はアルミニウム合金よりなるロ
ーター本体の表面に２層コーティングを施してなるディ
スクローターであって、該２層コーティングの下地層が
硬質クロム層であり、表面層が炭化チタン層であること
を特徴とする。[Means for Solving the Problems] A disc rotor according to claim 1 is a disc rotor formed by applying a two-layer coating to the surface of a rotor body made of aluminum or an aluminum alloy, wherein the base layer of the two-layer coating is hard. It is a chromium layer, and the surface layer is a titanium carbide layer.
【０００７】請求項２のディスクローターは、請求項１
のディスクローターにおいて、硬質クロム層の厚さが３
〜５００μｍであることを特徴とする。[0007] The disc rotor according to claim 2 is the disc rotor according to claim 1.
In this disc rotor, the thickness of the hard chromium layer is 3
It is characterized by being ~500 μm.
【０００８】請求項３のディスクローターは、請求項１
又は２のディスクローターにおいて、炭化チタン層の厚
さが１〜５０μｍであることを特徴とする。[0008] The disc rotor according to claim 3 is the disc rotor according to claim 1.
Or, the disc rotor of No. 2 is characterized in that the thickness of the titanium carbide layer is 1 to 50 μm.
【０００９】以下に本発明を詳細に説明する。本発明の
ディスクローターの本体は、金属材料のなかでも特に軽
量なアルミニウム（Ａｌ）及びその軽量かつ高強度合金
より構成される。Ａｌ合金としては、ＪＩＳ−Ａ−２０
１７等の合金が挙げられる。The present invention will be explained in detail below. The main body of the disc rotor of the present invention is made of aluminum (Al), which is particularly lightweight among metal materials, and its lightweight and high-strength alloy. As an Al alloy, JIS-A-20
Examples include alloys such as No. 17.
【００１０】このようなローター本体に形成される２層
コーティングは硬質クロム（Ｃｒ）層の下地層と炭化チ
タン（ＴｉＣ）層の表面層よりなるものである。The two-layer coating formed on the rotor body is composed of a hard chromium (Cr) base layer and a titanium carbide (TiC) surface layer.
【００１１】下地層の硬質Ｃｒ層は電気メッキ等により
形成することができ、その厚さは３〜５００μｍ、特に
２０〜２００μｍであることが好ましい。硬質Ｃｒ層の
厚さが３μｍ未満ではマイクロクラックによる問題が生
じ、５００μｍを超えると硬質Ｃｒ層が必要以上に厚過
ぎて不経済である。The hard Cr layer as the underlayer can be formed by electroplating or the like, and its thickness is preferably 3 to 500 μm, particularly 20 to 200 μm. When the thickness of the hard Cr layer is less than 3 μm, problems arise due to microcracks, and when it exceeds 500 μm, the hard Cr layer is unnecessarily thick and uneconomical.
【００１２】表面層のＴｉＣ層はＰＶＤ法等により形成
するのが好ましく、その厚さは１〜５０μｍ、特に３〜
２０μｍであることが好ましい。ＴｉＣ層の厚さが１μ
ｍ未満ではマイクロクラックの恐れがあり、５０μｍを
超えるとＴｉＣ層が必要以上に厚過ぎて不経済である。
なお、ＴｉＣ層の形成にあたり、硬質Ｃｒ層の表面の均
一化のために、予め硬質Ｃｒ層表面をポリッシング等で
処理しておくのが好ましい。[0012] The surface TiC layer is preferably formed by a PVD method or the like, and its thickness is 1 to 50 μm, particularly 3 to 50 μm.
Preferably, it is 20 μm. TiC layer thickness is 1μ
If it is less than 50 μm, there is a risk of microcracks, and if it exceeds 50 μm, the TiC layer will be too thick than necessary and will be uneconomical. In addition, in forming the TiC layer, it is preferable to process the surface of the hard Cr layer in advance by polishing or the like in order to make the surface of the hard Cr layer uniform.
【００１３】[0013]
【作用】Ａｌ又はＡｌ合金は軽量かつ高強度であること
から、特にディスクローターの軽量化に有効である。[Operation] Since Al or Al alloy is lightweight and has high strength, it is particularly effective in reducing the weight of disc rotors.
【００１４】また、このようなＡｌ又はＡｌ合金の表面
に硬質Ｃｒ層とＴｉＣ層との２層コーティングを施すこ
とにより、高強度化及び耐摩耗性、耐食性の向上が図れ
る。即ち、ＴｉＣ層は硬くキズが付き難いものであるが
、母材のＡｌ又はＡｌ合金に直接コーティングした場合
には、母材であるＡｌ又はＡｌ合金の表面強度が不十分
であることから、コーティングによる効果が十分に表わ
れない。これに対して、硬質Ｃｒ層の下地層を形成した
後、ＴｉＣ層を形成することにより、ＴｉＣ層は硬質Ｃ
ｒ層を介して、硬質Ｃｒ層を媒体として母材と強く接合
する。また、硬質Ｃｒ層表面が平滑であることから、Ｔ
ｉＣ層は厚さのムラなく均一にコーティングされ、Ｔｉ
Ｃ本来の特性を十分に発揮する。このようなことから、
硬質Ｃｒ層及びＴｉＣ層の２層コーティングを施したデ
ィスクローターは、強度、硬度、耐摩耗性、摩擦性能等
の機械的特性や耐食性に著しく優れたものとなる。Furthermore, by applying a two-layer coating of a hard Cr layer and a TiC layer to the surface of such Al or Al alloy, it is possible to increase the strength and improve the wear resistance and corrosion resistance. In other words, the TiC layer is hard and hard to scratch, but if it is directly coated on the base material Al or Al alloy, the surface strength of the base material Al or Al alloy is insufficient, so the coating The effect is not fully expressed. On the other hand, by forming the TiC layer after forming the base layer of the hard Cr layer, the TiC layer becomes hard Cr.
It is strongly bonded to the base material through the r layer using the hard Cr layer as a medium. In addition, since the surface of the hard Cr layer is smooth, T
The iC layer is coated uniformly with even thickness, and the Ti
C fully exhibits its original characteristics. From such a thing,
A disc rotor coated with a two-layer coating of a hard Cr layer and a TiC layer has significantly superior mechanical properties such as strength, hardness, wear resistance, and friction performance, as well as corrosion resistance.
【００１５】本発明のディスクローターによれば、■従
来の鉄製ディスクローターに比べて重量は１／２〜１／
３と、非常に軽量である。このため、燃費が向上する。
■従来の鉄製ディスクローターのように錆びないため、
制動メカニズムに問題を発生しない。■鉄製ディスクロ
ーターに比べて、ローター表面の硬度が大きく、付着物
その他によりローターにキズが発生しない。このため、
摩擦係数は安定している。■ディスクパッド側の材料の
影響が少ない。このため、パッド材料の寿命を延長する
ことができる。■黒色又はこれに近い色合いを呈してい
るため、デザイン性、装飾性の面からも優れている。等
の作用効果が奏される。According to the disc rotor of the present invention, the weight is 1/2 to 1/2 that of a conventional iron disc rotor.
3, it is extremely lightweight. Therefore, fuel efficiency improves. ■Because it does not rust like traditional iron disc rotors,
No problems with the braking mechanism. ■Compared to iron disc rotors, the rotor surface has greater hardness, and the rotor will not be scratched by deposits or other debris. For this reason,
The friction coefficient is stable. ■Less affected by the material on the disc pad side. Therefore, the life of the pad material can be extended. ■Since it is black or a color close to black, it is excellent in terms of design and decoration. The following effects are achieved.
【００１６】[0016]
【実施例】以下に実施例及び比較例を挙げて本発明をよ
り具体的に説明するが、本発明はその要旨を超えない限
り、以下の実施例に限定されるものではない。[Examples] The present invention will be explained in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples unless it exceeds the gist thereof.
【００１７】実施例１〜４、比較例１
Ａｌ合金（ＪＩＳ−Ａ−２０１７）製ディスクローター
本体に、通常の電気メッキにより表１に示す厚さの硬質
Ｃｒ層の下地層を形成した。下地層の表面を均一にする
ためにポリッシングを行なった後、その面にＰＶＤ法に
より表１に示す厚さのＴｉＣ層の表面層を形成した。な
お、電気メッキ及びＰＶＤの操作条件は、通常実施され
ている条件の範囲で設定した。得られたディスクロータ
ーについて、性能試験を行ない、従来の鋳鉄製ディスク
ローター（比較例１）と比較した。結果を表１に示す。Examples 1 to 4, Comparative Example 1 A hard Cr underlayer having a thickness shown in Table 1 was formed on a disc rotor body made of an Al alloy (JIS-A-2017) by ordinary electroplating. After polishing was performed to make the surface of the underlayer uniform, a surface layer of a TiC layer having a thickness shown in Table 1 was formed on the surface by PVD. Note that the operating conditions for electroplating and PVD were set within the range of normally practiced conditions. The obtained disc rotor was subjected to a performance test and compared with a conventional cast iron disc rotor (Comparative Example 1). The results are shown in Table 1.
【００１８】[0018]
【表１】[Table 1]
【００１９】表１より、本発明のディスクローターは、
摩擦係数は従来の鋳鉄製ディスクローターとほぼ同程度
の良好な値を示し、耐摩耗性が良好で、また、高硬度で
あることから、耐キズ付き性、耐久性については鋳鉄製
ディスクローターより著しく優れることが明らかである
。しかも、本発明のディスクローターは従来の鋳鉄製デ
ィスクローター重量に比べて１／２〜１／３の非常に軽
量なものであった。From Table 1, the disc rotor of the present invention has the following characteristics:
The coefficient of friction is almost the same as that of conventional cast iron disc rotors, and since it has good wear resistance and high hardness, it has better scratch resistance and durability than cast iron disc rotors. It is clear that it is significantly superior. Furthermore, the disc rotor of the present invention is extremely lightweight, weighing 1/2 to 1/3 of the weight of conventional cast iron disc rotors.
【００２０】[0020]
【発明の効果】以上詳述した通り、本発明のディスクロ
ーターによれば、摩擦性能、耐摩耗性、機械的強度、耐
食性、耐久性に優れ、高硬度でしかも非常に軽量なディ
スクローターが提供される。本発明のディスクローター
は、自動車用ディスクブレーキ機構等に用いて、その軽
量化を図ることができ、工業的に極めて有用である。[Effects of the Invention] As detailed above, the disc rotor of the present invention provides a disc rotor that has excellent friction performance, wear resistance, mechanical strength, corrosion resistance, and durability, and is highly hard and extremely lightweight. be done. The disc rotor of the present invention can be used in disc brake mechanisms for automobiles, etc. to reduce its weight, and is extremely useful industrially.
Claims (3)
りなるローター本体の表面に２層コーティングを施して
なるディスクローターであって、該２層コーティングの
下地層が硬質クロム層であり、表面層が炭化チタン層で
あることを特徴とするディスクローター。Claim 1: A disc rotor comprising a two-layer coating on the surface of a rotor body made of aluminum or aluminum alloy, wherein the base layer of the two-layer coating is a hard chromium layer, and the surface layer is a titanium carbide layer. A disc rotor characterized by certain things.
であることを特徴とする請求項１に記載のディスクロー
ター。[Claim 2] The thickness of the hard chromium layer is 3 to 500 μm.
The disc rotor according to claim 1, characterized in that:
あることを特徴とする請求項１又は２に記載のディスク
ローター。3. The disc rotor according to claim 1, wherein the titanium carbide layer has a thickness of 1 to 50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3079022A JP3063201B2 (en) | 1991-04-11 | 1991-04-11 | Disc rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3079022A JP3063201B2 (en) | 1991-04-11 | 1991-04-11 | Disc rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04312220A true JPH04312220A (en) | 1992-11-04 |
| JP3063201B2 JP3063201B2 (en) | 2000-07-12 |
Family
ID=13678321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3079022A Expired - Fee Related JP3063201B2 (en) | 1991-04-11 | 1991-04-11 | Disc rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3063201B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007248623A (en) * | 2006-03-14 | 2007-09-27 | Nippon Electric Glass Co Ltd | Receptacle for optical communication, and its manufacturing method |
| US20130220745A1 (en) * | 2007-02-20 | 2013-08-29 | Tech M3, Inc. | Composite brake disks and methods for coating |
| US10012279B2 (en) | 2013-03-15 | 2018-07-03 | Tech M3, Inc. | Braking systems incorporating wear and corrosion resistant rotors |
| US10197121B2 (en) | 2013-03-15 | 2019-02-05 | Tech M3, Inc. | Wear resistant braking systems |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3567269B1 (en) * | 2018-05-09 | 2023-07-12 | Zermet Zerspanungstechnik GmbH & Co. KG | Method for coating parts of vehicle brakes, brake discs and method for producing a brake disc |
-
1991
- 1991-04-11 JP JP3079022A patent/JP3063201B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007248623A (en) * | 2006-03-14 | 2007-09-27 | Nippon Electric Glass Co Ltd | Receptacle for optical communication, and its manufacturing method |
| US20130220745A1 (en) * | 2007-02-20 | 2013-08-29 | Tech M3, Inc. | Composite brake disks and methods for coating |
| US10012279B2 (en) | 2013-03-15 | 2018-07-03 | Tech M3, Inc. | Braking systems incorporating wear and corrosion resistant rotors |
| US10197121B2 (en) | 2013-03-15 | 2019-02-05 | Tech M3, Inc. | Wear resistant braking systems |
| US20190368560A1 (en) * | 2013-03-15 | 2019-12-05 | Tech M3, Inc. | Wear resistant braking systems |
| US10895295B2 (en) | 2013-03-15 | 2021-01-19 | Tech M3, Inc. | Wear resistant braking systems |
| US11624416B2 (en) | 2013-03-15 | 2023-04-11 | Tech M3, Inc. | Wear resistant braking systems |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3063201B2 (en) | 2000-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20000404 |
|
| LAPS | Cancellation because of no payment of annual fees |