JPH02113133A - Production for disk brake rotor - Google Patents
Production for disk brake rotorInfo
- Publication number
- JPH02113133A JPH02113133A JP26650788A JP26650788A JPH02113133A JP H02113133 A JPH02113133 A JP H02113133A JP 26650788 A JP26650788 A JP 26650788A JP 26650788 A JP26650788 A JP 26650788A JP H02113133 A JPH02113133 A JP H02113133A
- Authority
- JP
- Japan
- Prior art keywords
- brake rotor
- disk brake
- corrosion
- coating
- face
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 230000007797 corrosion Effects 0.000 claims abstract description 20
- 238000005260 corrosion Methods 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 239000011701 zinc Substances 0.000 claims abstract description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 230000006866 deterioration Effects 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 3
- 238000012937 correction Methods 0.000 abstract description 2
- 239000010953 base metal Substances 0.000 abstract 2
- 229910001297 Zn alloy Inorganic materials 0.000 abstract 1
- 238000007751 thermal spraying Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、ディスクブレーキロータの製造方法に関する
。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a method of manufacturing a disc brake rotor.
（従来の技術）
例えば自動二輪車の制動装置に用いられるディスクブレ
ーキロータは、軽量化を図るため第６図示のようにアル
ミニウムまたはその合金を母材１とし、その表面にステ
ンレス鋼板２，２を積層したＡ、１７−３ＵＳクラツド
鋼板が用いられるようになっている。(Prior Art) For example, in order to reduce the weight of a disc brake rotor used in a braking device for a motorcycle, the base material 1 is made of aluminum or its alloy, and stainless steel plates 2 are laminated on the surface of the base material 1, as shown in Figure 6. A, 17-3 US clad steel plate is now used.
（発明が解決しようとする課８）
しかるに上記構成からなるＡｌ−８ＵＳクラツド鋼板に
より形成されたディスクブレーキロータでは、第７図に
部分拡大断面を示すようにアルミニウム（またはその合
金）からなる母材１とステンレス鋼板２．２との自然電
位が異なるがために積層界面に電蝕３，３が起り、ディ
スクブレーキロータの美観が損なわれるばかりでなく強
度低下をきたす原因ともなりかねない。上記電蝕３，３
はアウタ面で起ることは少なく、主としてインナ面にお
いて生じる。(Problem 8 to be solved by the invention) However, in a disc brake rotor formed from an Al-8US clad steel plate having the above structure, the base material made of aluminum (or an alloy thereof) is Since the natural potentials of 1 and the stainless steel plate 2.2 are different, electrolytic corrosion 3, 3 occurs at the laminated interface, which not only impairs the appearance of the disc brake rotor but also may cause a decrease in strength. Above electrolytic corrosion 3,3
This rarely occurs on the outer surface, but mainly on the inner surface.
上記のクラツド鋼板は実用されて日も浅く、効果的な防
蝕手段が未だ確立されていず、塗料を塗るなどによる−
時的な防蝕が図られているに過ぎない。The above-mentioned clad steel plates have only been in practical use for a short time, and effective corrosion protection measures have not yet been established.
It is merely a temporary protection against corrosion.
本発明はこれに鑑み、アルミニウムまたはその合金とス
テンレス鋼板との積層界面の防蝕を図り、もってディス
クブレーキロータの美観を損なわないと同時に強度劣化
を防ぐことができるディスクブレーキロータの製造方法
を提供することを目的としてなされたものである。In view of this, the present invention provides a method for manufacturing a disc brake rotor that prevents corrosion of the laminated interface between aluminum or its alloy and a stainless steel plate, thereby not impairing the aesthetic appearance of the disc brake rotor and at the same time preventing strength deterioration. It was done for that purpose.
（課題を解決するための手段）
上記従来技術が有する課題を解決するため本発明は、ア
ルミニウムまたはその合金を母材とし、その表面にステ
ンレス鋼板を積層して形成されるディスクブレーキロー
タにおいて、ディスクブレーキロータの平面研磨前にそ
の端面に亜鉛またはその合金を溶射ガンにより大気プラ
ズマ溶射し、その溶射被膜を犠牲陽極として母材を防蝕
するようにしたことを特徴とする。(Means for Solving the Problems) In order to solve the problems of the above-mentioned prior art, the present invention provides a disc brake rotor that uses aluminum or its alloy as a base material and stacks stainless steel plates on the surface of the disc brake rotor. The present invention is characterized in that zinc or its alloy is sprayed with atmospheric plasma onto the end face of the brake rotor before its flat surface is polished using a spray gun, and the sprayed coating is used as a sacrificial anode to protect the base material from corrosion.
（実施例）
以下、本発明の実施例を第１図乃至第４図を参照し、第
６図、第７図と共通する部材については同一符号を用い
て説明する。(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4, and the same reference numerals are used for the same members as in FIGS. 6 and 7.
第１図はディスクブレーキロータ４の一例を示すもので
、アルミニウム（またはその合金）からなる母材１の表
面にステンレス鋼板２，２を積層して形成されたＡ、１
７−３ＵＳクラツド鋼板を用いて円環状に形成されてい
る。ディスクブレーキロータ４とする工程としては、第
４図に工程図を示すようにプレスにより円環状に打ち抜
く打抜き工程、レベルを修正するレベラ修正工程、端面
を機械（旋盤）加工する端面加工工程を経て円環状素材
（クラッドロータ）を作り、そのインナ面４Ａに亜鉛（
または亜鉛合金）を溶射ガン５により大気プラズマ溶射
して被膜６を形成し、ついでクラッドロータの摺動面の
平面研磨を行なって製品とされる。FIG. 1 shows an example of a disc brake rotor 4, which is formed by laminating stainless steel plates 2, 2 on the surface of a base material 1 made of aluminum (or its alloy).
It is formed into an annular shape using 7-3 US clad steel plate. As shown in the process diagram in Fig. 4, the process of forming the disc brake rotor 4 includes a punching process of punching out an annular shape using a press, a leveler correction process of correcting the level, and an end face processing process of machining the end face using a machine (lathe). Make an annular material (clad rotor) and coat its inner surface 4A with zinc (
A coating 6 is formed by atmospheric plasma spraying using a thermal spray gun 5, and then the sliding surface of the clad rotor is polished to produce a product.
上記溶射ガン５による溶射には、第２図示のように平面
研磨前のクラッドロータを複数枚重ね合わせたのちこの
ロータ群を回転させながら溶射ガン５をインナ面４Ａに
そって挿入し、溶射を行なう。この場合、溶射ガン５を
クラッドロータの積層方向に移動させるか、あるいはク
ラッドロータ側を移動させて溶射が行なわれる。For thermal spraying using the thermal spraying gun 5, as shown in the second figure, a plurality of clad rotors before surface polishing are stacked one on top of the other, and then the thermal spraying gun 5 is inserted along the inner surface 4A while rotating this rotor group, and the thermal spraying is carried out. Let's do it. In this case, thermal spraying is performed by moving the thermal spray gun 5 in the stacking direction of the clad rotor, or by moving the clad rotor side.
溶射されて形成された亜鉛被膜６は、機械的な剪断力が
働かないので密着力を度外視して耐久耐蝕性に見合う厚
さに溶射形成すればよい。そしてこの被膜６は犠牲陽極
となるので、ディスクブレーキロータ４全体の腐蝕から
保護する。Since the zinc coating 6 formed by thermal spraying is not subject to mechanical shearing force, it is sufficient to disregard adhesion and form the zinc coating 6 by thermal spraying to a thickness suitable for durability and corrosion resistance. Since this coating 6 serves as a sacrificial anode, it protects the entire disc brake rotor 4 from corrosion.
第５図は電蝕防止手段例と電蝕度との関係を示す実験例
で、グライドロータの端面に各種の表面処理を行ない、
２００℃、３００℃、４００℃の各温度において２４時
間保持し、熱履歴を与えたのち耐蝕性実験を行なった結
果である。耐蝕処理としては、（ａ）アロジン処理＋ク
リア塗装、（ｂ）ダクロ処理、（Ｃ）純ＡＩ？溶射、（
ｄ）Ａｌ１−ＳＬ合金溶射、（ｅ）純Ｚｎ溶射である。Figure 5 is an experimental example showing the relationship between examples of galvanic corrosion prevention means and the degree of galvanic corrosion, in which various surface treatments were applied to the end face of the glide rotor.
These are the results of a corrosion resistance experiment after being held at each temperature of 200°C, 300°C, and 400°C for 24 hours to give a thermal history. Corrosion-resistant treatments include (a) alodine treatment + clear coating, (b) dacro treatment, and (C) pure AI? Thermal spraying, (
d) Al1-SL alloy spraying; (e) pure Zn spraying.
耐蝕性試験方法としては、塩水噴霧試験７２時間、恒温
恒湿保持（３０℃で９８％）９６時間を１サイクルとし
てこれを２サイクルにわたりテストした。また最高浸蝕
量μとは、第７図においてＡＤ母材１が浸蝕した深さ寸
法Ｈで示す。As a corrosion resistance test method, the test was performed over two cycles, with one cycle consisting of a salt water spray test for 72 hours and constant temperature and humidity maintenance (98% at 30° C.) for 96 hours. Further, the maximum erosion amount μ is indicated by the depth H to which the AD base material 1 is eroded in FIG.
この実験結果からみて、純Ｚｎを溶射して表面処理を行
なった本発明によれば、熱履歴温度が４００℃において
も最高浸蝕量が殆んど変化していないことが判明した。From the results of this experiment, it was found that according to the present invention, in which surface treatment was performed by spraying pure Zn, the maximum amount of corrosion hardly changed even at a thermal history temperature of 400°C.
以上説明したように本発明によれば、ディスクブレーキ
ロータの平面研磨前にその端面に亜鉛またはその合金を
溶射ガンにより大気プラズマ溶射し、その溶射被膜を犠
牲陽極として母材を防蝕するようにしたことにより、長
時間高温の熱履歴を与えても電蝕による母材の浸蝕を大
巾に低減することができ、ディスクブレーキロータの美
観性を損なわないとともに強度劣化を生じることがない
。As explained above, according to the present invention, zinc or an alloy thereof is sprayed with atmospheric plasma on the end face of the disc brake rotor using a thermal spray gun before flat surface polishing, and the sprayed coating is used as a sacrificial anode to protect the base material from corrosion. As a result, erosion of the base material due to electrolytic corrosion can be greatly reduced even if a high-temperature thermal history is applied for a long period of time, and the aesthetic appearance of the disc brake rotor is not impaired and strength deterioration does not occur.
またまとめて溶射することにより被膜を形成することが
できるので、量産が可能であるなどの種々の効果がある
。Furthermore, since the coating can be formed by thermal spraying all at once, there are various effects such as mass production being possible.
第１図は本発明により得られるディスクブレーキロータ
の一例を示す斜視図、第２図は溶射ガンによる被膜形成
工程を示す説明図、第３図はディスクブレーキロータの
インチ面に被膜が形成された状態を示す断面図、第４図
は本発明の工程図、第５図は本発明によるＺｎ溶射被膜
を形成した場合と他の表面処理した場合との最高浸蝕量
の実験結果を示すグラフ、第６図は本発明が対象とする
ディスクブレーキロータの素材であるＡ、Ｑ−８ＵＳク
ラツド鋼板の部分斜視図、第７図は従来のディスクブレ
ーキロータのインナ面の電蝕状態を示す説明図である。
１・・・母材、２・・・ステンレス鋼板、４・・・ディ
スクブレーキロータ、５・・・溶射ガン、６・・・被膜
。Fig. 1 is a perspective view showing an example of a disc brake rotor obtained by the present invention, Fig. 2 is an explanatory diagram showing the process of forming a coating using a thermal spray gun, and Fig. 3 shows a coating formed on the inch side of the disc brake rotor. FIG. 4 is a cross-sectional view showing the state, FIG. 4 is a process diagram of the present invention, and FIG. Fig. 6 is a partial perspective view of A, Q-8 US clad steel plate, which is the material of the disc brake rotor targeted by the present invention, and Fig. 7 is an explanatory diagram showing the state of electrolytic corrosion on the inner surface of a conventional disc brake rotor. . DESCRIPTION OF SYMBOLS 1... Base material, 2... Stainless steel plate, 4... Disc brake rotor, 5... Thermal spray gun, 6... Coating.
Claims (1)
テンレス鋼板を積層して形成されるディスクブレーキロ
ータにおいて、ディスクブレーキロータの平面研磨前に
その端面に亜鉛またはその合金を溶射ガンにより大気プ
ラズマ溶射し、その溶射被膜を犠牲陽極として母材を防
蝕するようにしたことを特徴とするディスクブレーキロ
ータの製造方法。In a disc brake rotor that is formed by using aluminum or its alloy as a base material and laminating stainless steel plates on its surface, zinc or its alloy is sprayed with atmospheric plasma on the end face using a thermal spray gun before the disc brake rotor is polished. A method for manufacturing a disc brake rotor, characterized in that the sprayed coating is used as a sacrificial anode to protect the base material from corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63266507A JP2687150B2 (en) | 1988-10-22 | 1988-10-22 | Disc brake rotor manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63266507A JP2687150B2 (en) | 1988-10-22 | 1988-10-22 | Disc brake rotor manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02113133A true JPH02113133A (en) | 1990-04-25 |
| JP2687150B2 JP2687150B2 (en) | 1997-12-08 |
Family
ID=17431872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63266507A Expired - Lifetime JP2687150B2 (en) | 1988-10-22 | 1988-10-22 | Disc brake rotor manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2687150B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995015445A1 (en) * | 1993-12-03 | 1995-06-08 | Kelsey-Hayes Company | Corrosion resistant brake component |
| KR20150124365A (en) * | 2014-04-28 | 2015-11-05 | 가부시키가이샤 시마노 | Brake friction assembly for drag mechanism and fishing reel using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029552A (en) | 2004-07-21 | 2006-02-02 | Shimano Inc | Bicycle disc rotor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5388687U (en) * | 1976-12-21 | 1978-07-20 | ||
| JPS62141326A (en) * | 1985-12-13 | 1987-06-24 | Hitachi Chem Co Ltd | Friction material |
| JPS63140130A (en) * | 1986-11-29 | 1988-06-11 | Daido Kogyo Co Ltd | Brake disk |
-
1988
- 1988-10-22 JP JP63266507A patent/JP2687150B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5388687U (en) * | 1976-12-21 | 1978-07-20 | ||
| JPS62141326A (en) * | 1985-12-13 | 1987-06-24 | Hitachi Chem Co Ltd | Friction material |
| JPS63140130A (en) * | 1986-11-29 | 1988-06-11 | Daido Kogyo Co Ltd | Brake disk |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995015445A1 (en) * | 1993-12-03 | 1995-06-08 | Kelsey-Hayes Company | Corrosion resistant brake component |
| KR20150124365A (en) * | 2014-04-28 | 2015-11-05 | 가부시키가이샤 시마노 | Brake friction assembly for drag mechanism and fishing reel using the same |
| JP2015208284A (en) * | 2014-04-28 | 2015-11-24 | 株式会社シマノ | Braking plate assembly for drag mechanism of fishing reel, and fishing reel with the same |
| TWI650072B (en) * | 2014-04-28 | 2019-02-11 | 日商島野股份有限公司 | A reel for a brake mechanism for a brake device for a fishing reel and a reel for a fishing tackle for a brake mechanism for a reel for a fishing tackle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2687150B2 (en) | 1997-12-08 |
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