JPH073255B2 - Brake friction material - Google Patents
Brake friction materialInfo
- Publication number
- JPH073255B2 JPH073255B2 JP27317286A JP27317286A JPH073255B2 JP H073255 B2 JPH073255 B2 JP H073255B2 JP 27317286 A JP27317286 A JP 27317286A JP 27317286 A JP27317286 A JP 27317286A JP H073255 B2 JPH073255 B2 JP H073255B2
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- component
- semi
- brake friction
- present
- 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.)
- Expired - Lifetime
Links
Landscapes
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はフェード特性を改善した自動車等のブレーキ摩
擦材に関するものである。TECHNICAL FIELD The present invention relates to a brake friction material for automobiles and the like having improved fade characteristics.
現在スチールファイバーおよびスポンジアイアン等の金
属繊維および金属粉末等をフェノール樹脂等の熱硬化性
樹脂をバインダーに用いて成形してなるセミメタリック
材を摩擦材に用いたブレーキ摩擦材が多用されている
が、フェード特性の面で十分とは言い難い。Brake friction materials that use semi-metallic materials, which are formed by molding metal fibers such as steel fibers and sponge irons and metal powders using a thermosetting resin such as phenol resin as a binder, are widely used. However, it is hard to say that the fade characteristics are sufficient.
又一方カーボン繊維強化炭素質体複合材（以下単にこれ
をC/Cコンポと略記する）はこれを摩擦材に用いた場合
には優れたフェード特性が期待されるが、C/Cコンポは
高価なためC/Cコンポのみよりなる摩擦材は実用的では
ない。On the other hand, a carbon fiber reinforced carbonaceous material composite material (hereinafter simply abbreviated as C / C component) is expected to have excellent fade characteristics when it is used as a friction material, but C / C component is expensive. Therefore, a friction material consisting only of C / C components is not practical.
本発明はこの問題に対応してなされたものである。The present invention has been made to address this problem.
本発明の要旨とする所はセミメタリック材よりなる摩擦
材とカーボン繊維強化炭素質体複合材よりなる摩擦材と
を裏金上に衝き合せ配置したことを特徴とするブレーキ
摩擦材に存するもので、これにより所期の目的を収めた
ものである。The gist of the present invention resides in a brake friction material characterized in that a friction material made of a semi-metallic material and a friction material made of a carbon fiber reinforced carbonaceous material composite material are arranged in abutment on the back metal. As a result, the intended purpose is set.
本発明で言うC/Cコンポは、例えば通常ポリアクリロニ
トリル系、ピッチ系などの炭素繊維を補強繊維とし、ピ
ッチ、フェノール樹脂初期縮合物等をバインダーとして
熱プレスにより成形したものを、200〜700℃の温度で一
次焼成した後、更にピッチの含浸と焼成操作を３〜５回
繰返して材料の強度を増大させ、最後に1500℃以上の温
度で熱処理を行って製品化したものが用いられる。The C / C component referred to in the present invention is, for example, a polyacrylonitrile-based carbon fiber, a pitch-based carbon fiber or the like as a reinforcing fiber, and a pitch, which is formed by hot pressing with a phenol resin initial condensate as a binder, 200 to 700 ° C. After the primary calcination at the temperature of 1, the impregnation of the pitch and the calcination operation are repeated 3 to 5 times to increase the strength of the material, and finally the product is heat-treated at a temperature of 1500 ° C. or higher to be commercialized.
このC/Cコンポはこれを摩擦材材として使用する場合、
耐熱性には優れている反面、摩擦性能を満足させるのに
限度があると共に機械的強度も十分でないという欠点が
ある。This C / C component uses this as a friction material,
Although it has excellent heat resistance, it has a drawback that it has a limit to satisfy the friction performance and the mechanical strength is not sufficient.
そこで本出願人は先にC/Cコンポの気孔に低融点金属な
いし合金を３〜10vol％溶浸することによって摩擦性能
を大巾に向上せしめた摩擦材料を提供している。Therefore, the present applicant has previously provided a friction material with greatly improved friction performance by infiltrating 3 to 10 vol% of a low melting point metal or alloy into the pores of a C / C component.
従って本発明で用いられるC/Cコンポには低融点金属
（合金）を溶浸したものおよび溶浸しないもの、双方が
含まれる。Therefore, the C / C component used in the present invention includes both those infiltrated with a low melting point metal (alloy) and those not infiltrated.
本発明においてセミメタリック材の摩擦材とC/Cコンポ
材の摩擦材の組合せ方は特に制約されるものではない
が、通常は左右のいずれか片部をセミメタリック材とし
他の片部をC/Cコンポ材として裏金上で衝き合せ固定す
ればよい。In the present invention, the method of combining the friction material of the semi-metallic material and the friction material of the C / C component material is not particularly limited, but usually one of the left and right parts is a semi-metallic material and the other part is C / C It can be fixed by abutting on the back metal as a component material.
尚、大型用の場合には両側にセミメタリック材を取付
け、真中に耐熱性，耐フェード上有利なC/Cコンプ材を
セットした３枚組合せとするのが有利である。In the case of a large-sized product, it is advantageous to attach a semi-metallic material on both sides and set a C / C comp material, which is advantageous in heat resistance and fade resistance, in the middle to form a three-piece combination.
本発明のセミメタリック材の摩擦材とC/Cコンポ材の摩
擦材とを組合せてなるブレーキ摩擦材のフェード特性は
第１図の実線（Ａ）で示すようにセミメタリック材の摩
擦材単品よりなるもののフェードト特性［点線（Ｂ）］
に比べてその改善効果が顕著であった。又C/Cコンポ材
の摩擦材単品よりなるもののフェード特性［点線
（Ｃ）］との対比より明らかなようにC/Cコンポの耐フ
ェード特性を効果的に利用していることが認められる。
又本発明者は高価なC/Cコンポ材を小さく使うように組
合せうるので比較的廉価で耐熱性，耐フェード性を満足
させうるブレーキ摩擦材を提供することができ、工業的
価値大なるものがある。As shown by the solid line (A) in FIG. 1, the fade characteristics of the brake friction material obtained by combining the semi-metallic friction material and the C / C component friction material of the present invention are better than those of the semi-metallic friction material alone. Fade characteristics of dotted line [dotted line (B)]
The improvement effect was remarkable as compared with. Further, as is clear from the comparison with the fade characteristics [dotted line (C)] of the C / C component made of a friction material alone, it is recognized that the fade resistance of the C / C component is effectively used.
Further, since the present inventor can combine expensive C / C component materials so that they can be used in a small size, it is possible to provide a brake friction material that is relatively inexpensive and can satisfy heat resistance and fade resistance, and is of great industrial value. There is.
第２図に示すように裏金（１）上の右半部にセミメタリ
ック材よりなる摩擦材（２）を同時モールドによって一
体的に接着成型する。次に裏金（１）上の左半部に相当
するC/Cコンポ材よりなる摩擦材（３）を別途成型し、
これにあけたボルト孔を通して裏金（１）の左半部上に
ボルトナット（４）にて固定する。As shown in FIG. 2, a friction material (2) made of a semimetallic material is integrally bonded and molded on the right half portion of the backing metal (1) by simultaneous molding. Next, a friction material (3) made of C / C component material corresponding to the left half of the back metal (1) is separately molded,
The bolt nut (4) is fixed on the left half of the backing metal (1) through the bolt hole formed in this.
第１図は本発明品（Ａ）と比較品（Ｂ）（Ｃ）のフェー
ド特性を比較した図表である。第２図は本発明の実施例
を示す断面説明図である。 １……裏金 ２……セミメタリック材の摩擦材 ３……C/Cコンポ材の摩擦材FIG. 1 is a chart comparing the fade characteristics of the product (A) of the present invention and the comparative products (B) and (C). FIG. 2 is a sectional explanatory view showing an embodiment of the present invention. 1 …… Back metal 2 …… Semi-metallic friction material 3 …… C / C component friction material
Claims (1)
ン繊維強化炭素質体複合材よりなる摩擦材とを裏金上に
衝き合せ配置したことを特徴とするブレーキ摩擦材。1. A brake friction material characterized in that a friction material made of a semi-metallic material and a friction material made of a carbon fiber reinforced carbonaceous material composite material are disposed in abutment on a back metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27317286A JPH073255B2 (en) | 1986-11-17 | 1986-11-17 | Brake friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27317286A JPH073255B2 (en) | 1986-11-17 | 1986-11-17 | Brake friction material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63125836A JPS63125836A (en) | 1988-05-30 |
| JPH073255B2 true JPH073255B2 (en) | 1995-01-18 |
Family
ID=17524101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27317286A Expired - Lifetime JPH073255B2 (en) | 1986-11-17 | 1986-11-17 | Brake friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073255B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2838304B2 (en) * | 1990-02-23 | 1998-12-16 | 日清紡績株式会社 | Non-asbestos friction material |
| JPH043135U (en) * | 1990-04-23 | 1992-01-13 |
-
1986
- 1986-11-17 JP JP27317286A patent/JPH073255B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63125836A (en) | 1988-05-30 |
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