JPH04306289A - Non-asbestos insulating material and non-asbestos molding of friction material - Google Patents

Non-asbestos insulating material and non-asbestos molding of friction material

Info

Publication number
JPH04306289A
JPH04306289A JP9806991A JP9806991A JPH04306289A JP H04306289 A JPH04306289 A JP H04306289A JP 9806991 A JP9806991 A JP 9806991A JP 9806991 A JP9806991 A JP 9806991A JP H04306289 A JPH04306289 A JP H04306289A
Authority
JP
Japan
Prior art keywords
asbestos
fibers
insulator material
insulator
components
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
Application number
JP9806991A
Other languages
Japanese (ja)
Other versions
JP3008218B2 (en
Inventor
Mitsuru Kobayashi
満 小林
Masahiro Nanba
難波 正博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nisshinbo Holdings Inc
Original Assignee
Nisshinbo Industries Inc
Nisshin Spinning Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nisshinbo Industries Inc, Nisshin Spinning Co Ltd filed Critical Nisshinbo Industries Inc
Priority to JP3098069A priority Critical patent/JP3008218B2/en
Publication of JPH04306289A publication Critical patent/JPH04306289A/en
Application granted granted Critical
Publication of JP3008218B2 publication Critical patent/JP3008218B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To provide the subject insulating material comprising reinforcing fibers excluding asbestos and containing metal fibers, a binder consisting of a thermoplastic resin and a filler, and having good heat resistance and a strength resisting against the braking forces of middle and large motor vehicles. CONSTITUTION:The objective insulating material comprises (A) reinforcing fibers excluding asbestos and containing metal fibers, such as steel fibers, copper fibers or bronze fibers, preferably having an average fiber diameter of preferably 30-150mum and an average fiber length of approximately 0.5-6.0mm in an amount of approximately 0.5-20vol.% based on the total amount of the insulating material, and (C) a filler such as barium sulfate.

Description

【発明の詳細な説明】[Detailed description of the invention]

【0001】0001

【産業上の利用分野】本発明は、自動車等の車両用ディ
スクパッド、ブレーキランニング、クラッチフェーシン
グ等に使用される非石綿系インシュレータ材及び非石綿
系摩擦材成形品に関するものであり、更に詳しくは、特
に高負荷の下で使用される中・大型車用のディスクパッ
ド等に使用して好適な非石綿系インシュレータ材及び非
石綿系摩擦材成形品に関するものである。
[Field of Industrial Application] The present invention relates to non-asbestos insulator materials and non-asbestos friction material molded products used for disc pads, brake running, clutch facings, etc. for vehicles such as automobiles. The present invention relates to a non-asbestos insulator material and a molded product of a non-asbestos friction material, which are suitable for use in disc pads, etc. for medium-sized and large-sized vehicles, especially those used under high loads.

【0002】0002

【従来の技術】自動車等の車両用のブレーキには、周知
のように、ブレーキドラムの内面にブレーキシューを押
しつけて制動するドラムブレーキと、円盤状のローター
の側面にブレーキパッドを押しつけて制動するディスク
ブレーキの2種類がある。
[Prior Art] As is well known, brakes for vehicles such as automobiles include drum brakes, which apply brakes by pressing brake shoes against the inner surface of a brake drum, and braking systems, which apply brakes by pressing brake pads against the sides of a disc-shaped rotor. There are two types of disc brakes.

【0003】而して、上記ディスクブレーキは上記ドラ
ムブレーキに比べて、その構造上、熱が逃げ易く、又、
均一な制動が得られ易いという利点はあるが、耐摩耗性
に関しては、ディスクブレーキに比べて大きなブレーキ
シューを使用するドラムブレーキの方が優れていて、こ
のような理由により、従来から一般に、中・大型車には
ドラムブレーキが、小型車にはディスクブレーキが多く
使用されている。
[0003]The disc brake has a structure that allows heat to escape more easily than the drum brake.
Drum brakes have the advantage of being easier to obtain uniform braking, but in terms of wear resistance, drum brakes use larger brake shoes and are better than disc brakes.For this reason, drum brakes have traditionally been・Drum brakes are often used for large cars, and disc brakes are often used for small cars.

【0004】そして、ドラムブレーキ用であるとディス
クブレーキ用であるとを問わず、高温時の耐摩耗性に重
点をおいた摩擦材は、金属成分や黒鉛等を多量に含ませ
ることにより摩擦材全体の熱伝導率を上げ、摩擦表面の
温度が高くならないように設計されているものが多い。
[0004] Regardless of whether it is for drum brakes or disc brakes, friction materials that place emphasis on wear resistance at high temperatures are made by incorporating large amounts of metal components, graphite, etc. Many of them are designed to increase the overall thermal conductivity and prevent the temperature of the friction surface from rising.

【0005】しかし、摩擦材の熱伝導率が高くなると、
摩擦により発生する熱がブレーキ装置を伝わってブレー
キオイルを昇温させ、この結果ベーパーロック現象を発
生させるおそれがあるので、通常は摩擦材と裏金の間に
インシュレータを設けるようにしており、従来、このよ
うなインシュレータ材としては、安価で適度な強度を持
つ石綿を基材とするものが多く使用されてきた。
However, as the thermal conductivity of the friction material increases,
The heat generated by friction is transmitted through the brake equipment and raises the temperature of the brake oil, which may result in a vapor lock phenomenon, so an insulator is usually provided between the friction material and the back metal. As such insulator materials, materials based on asbestos, which is inexpensive and has appropriate strength, have often been used.

【発明が解決しようとする課題】[Problem to be solved by the invention]

【0006】しかしながら、石綿は環境的な問題が指摘
された結果、その使用が規制されつつあり、従って、摩
擦材料ばかりでなく、インシュレータ材についても非石
綿系材への転換が要求されている。
[0006] However, as a result of the environmental problems pointed out about asbestos, its use is being regulated, and therefore there is a demand for conversion not only to friction materials but also to insulator materials to non-asbestos materials.

【0007】又、中・大型車にディスクブレーキを用い
た場合、ドラムブレーキを用いた場合に比較して、摩擦
材の摩擦面に平行な断面積が小さくなるので、このよう
な条件下で使用される摩擦材には、インシュレータ材料
としてより高強度のものが要求されている。
[0007] Furthermore, when disc brakes are used on medium-sized and large-sized vehicles, the cross-sectional area parallel to the friction surface of the friction material is smaller than when drum brakes are used, so they cannot be used under such conditions. Friction materials used for this purpose are required to have higher strength as insulator materials.

【0008】本発明は、上述した従来技術を背景として
、断熱性を有し、且つ、例えば中・大型車の制動中のブ
レーキ力に耐えられるような強度を有する非石綿系イン
シュレータ材及び非石綿系摩擦材を提供することを主な
目的としてなされた。
[0008] With the background of the above-mentioned prior art as a background, the present invention provides a non-asbestos insulator material and a non-asbestos insulator material that has heat insulating properties and has a strength capable of withstanding the braking force during braking of, for example, medium-sized and large-sized vehicles. The main purpose was to provide a friction material based on the friction material.

【0009】[0009]

【課題を解決するための手段】上記目的を達成するため
に本発明が採用した非石綿系インシュレータ材の構成は
、石綿以外の補強繊維と、フェノール樹脂等の熱硬化性
樹脂による結合剤及び硫酸バリウム等の充填材とからな
るインシュレータ材において、少なくともその成分の一
部として金属繊維を含むことを特徴とするものであり、
又、上記目的を達成するために本発明が採用した非石綿
系摩擦材の構成は、石綿以外の補強繊維と、フェノール
樹脂等の熱硬化性樹脂による結合剤及び硫酸バリウム等
の充填材とからなる非石綿系摩擦材において、摩擦材と
裏金の間に、少なくともその成分の一部として金属繊維
を含むインシュレータを介在させたことを特徴とするも
のである。
[Means for Solving the Problems] The composition of the non-asbestos insulator material adopted by the present invention in order to achieve the above object is as follows: reinforcing fibers other than asbestos, a binder made of thermosetting resin such as phenol resin, and sulfuric acid. An insulator material consisting of a filler such as barium, which is characterized by containing metal fibers as at least a part of its components,
In addition, the non-asbestos friction material adopted by the present invention in order to achieve the above object is composed of reinforcing fibers other than asbestos, a binder made of a thermosetting resin such as phenol resin, and a filler such as barium sulfate. This non-asbestos friction material is characterized in that an insulator containing metal fibers as at least a part of its components is interposed between the friction material and the back metal.

【0010】上記本発明の非石綿系インシュレータ材に
おいて、成分中の金属繊維は、その平均繊維径が約30
〜約150μm、平均繊維長が約0.5〜約6.0mm
のものを使用することができ、又、金属繊維の含有量と
しては、インシュレータ全量に対して約0.5〜約20
体積%という範囲をそれぞれ例示することができる。
[0010] In the non-asbestos insulator material of the present invention, the metal fibers in the component have an average fiber diameter of about 30
~ about 150 μm, average fiber length about 0.5 to about 6.0 mm
In addition, the content of metal fibers is about 0.5 to about 20% based on the total amount of the insulator.
Examples include ranges such as volume %.

【0011】又、本発明非石綿系摩擦材に使用するイン
シュレータ材としては、上記本発明の非石綿系インシュ
レータ材を例示することができる。
Further, as the insulator material used in the non-asbestos friction material of the present invention, the above-mentioned non-asbestos insulator material of the present invention can be exemplified.

【0012】以下に本発明を詳細に説明する。The present invention will be explained in detail below.

【0013】本発明の非石綿系インシュレータ材におい
て使用する石綿以外の補強繊維としては、例えば、アラ
ミド繊維、アクリル繊維、フェノ−ル繊維、PVA繊維
、セルロース繊維等の有機繊維、又は、ガラス繊維、セ
ラミック繊維、炭素繊維等の無機繊維、更に、スチ−ル
繊維、銅繊維、青銅繊維等の金属繊維のうちの1種又は
2種以上の繊維を含んだ混合物が用いられ、これらは従
来のインシュレータ材に用いられていたものと同じであ
る。
Examples of reinforcing fibers other than asbestos used in the non-asbestos insulator material of the present invention include organic fibers such as aramid fibers, acrylic fibers, phenol fibers, PVA fibers, and cellulose fibers, or glass fibers. A mixture containing one or more of inorganic fibers such as ceramic fibers and carbon fibers, and metal fibers such as steel fibers, copper fibers, and bronze fibers is used, and these are used in conventional insulators. It is the same material that was used for the wood.

【0014】又、結合剤としては、例えば、フェノ−ル
樹脂等の熱硬化性樹脂が、又、充填材としては、例えば
、硫酸バリウム、カシュ−ダスト、炭酸カルシウム等が
用いられ、これらの成分も、通常のインシュレータ材に
おいて汎用されているものである。
[0014] As the binder, for example, a thermosetting resin such as phenolic resin is used, and as the filler, for example, barium sulfate, cashew dust, calcium carbonate, etc. are used, and these components are used. These are also commonly used as ordinary insulator materials.

【0015】而して、本発明のインシュレータ材は、成
分の少なくとも一部として、金属繊維を含むことを特徴
とする。
The insulator material of the present invention is characterized in that it contains metal fibers as at least a part of its components.

【0016】本発明において使用する金属繊維は、その
平均繊維径が約30〜約150μmのものであることが
好ましく、約30μm以下では強度が低下し、約150
μm以上では繊維どうしの絡みが悪くなり、やはり強度
が低下する。
The metal fibers used in the present invention preferably have an average fiber diameter of about 30 to about 150 μm; below about 30 μm, the strength decreases;
If the thickness is more than .mu.m, the fibers will not intertwine with each other, resulting in a decrease in strength.

【0017】又、上記金属繊維は、その平均繊維長が約
0.5〜約6.0mmであることが好ましく、約0.5
mm以下及び約6.0mm以上では絡みが悪くなり強度
が低下する。
[0017] Further, the average fiber length of the metal fibers is preferably about 0.5 to about 6.0 mm, and about 0.5 to about 6.0 mm.
If the diameter is less than 6.0 mm or more than about 6.0 mm, the entanglement becomes poor and the strength decreases.

【0018】更に、金属繊維の含有量は、インシュレー
タ材全量の約0.5〜約20体積%が好ましく、約0.
5%以下では強度が不足し、約20%以上では熱伝導率
が高くなるためインシュレータ材としての本来の役割を
果たさなくなるので好ましくない。
Furthermore, the content of the metal fibers is preferably about 0.5 to about 20% by volume, and about 0.5% to about 20% by volume of the total amount of the insulator material.
If it is less than 5%, the strength will be insufficient, and if it is more than about 20%, the thermal conductivity will become high and it will no longer fulfill its original role as an insulator material, which is not preferable.

【0019】尚、本発明インシュレータ材の熱伝導率は
、それを使用した摩擦材の用途等により異なり、例えば
小型車用のディスクパッド等のように、熱発生量の少な
いものを対象とする場合は、約1.0kcal/mh℃
以下であってもよいが、中・大型車等用のディスクパッ
ドのように、熱発生量の多いものを対象とする場合は、
約1.0〜約2.5kcal/mh℃という範囲にある
ことが好ましい。
[0019] The thermal conductivity of the insulator material of the present invention varies depending on the application of the friction material in which it is used. , about 1.0kcal/mh℃
The following may be acceptable, but when targeting items that generate a large amount of heat, such as disc pads for medium and large vehicles,
Preferably, it is in the range of about 1.0 to about 2.5 kcal/mh°C.

【0020】一方、本発明の非石綿系摩擦材において使
用する石綿以外の補強繊維としては、本発明の非石綿系
インシュレータ材と同様、例えば、アラミド繊維、アク
リル繊維、フェノ−ル繊維、PVA繊維、セルロース繊
維等の有機繊維、又は、ガラス繊維、セラミック繊維、
炭素繊維等の無機繊維、更に、スチ−ル繊維、銅繊維、
青銅繊維等の金属繊維のうちの1種又は2種以上の繊維
を含んだ混合物が、又、結合剤としては、例えば、フェ
ノ−ル樹脂等の熱硬化性樹脂が、更に、充填材としては
、例えば、硫酸バリウム、カシュ−ダスト、炭酸カルシ
ウム等が用いられる。
On the other hand, reinforcing fibers other than asbestos used in the non-asbestos friction material of the present invention include, for example, aramid fibers, acrylic fibers, phenol fibers, and PVA fibers, as in the non-asbestos insulator material of the present invention. , organic fibers such as cellulose fibers, glass fibers, ceramic fibers,
Inorganic fibers such as carbon fibers, steel fibers, copper fibers,
A mixture containing one or more types of metal fibers such as bronze fibers, a binder such as a thermosetting resin such as a phenol resin, and a filler such as a thermosetting resin such as a phenolic resin. For example, barium sulfate, cashew dust, calcium carbonate, etc. are used.

【0021】而して、本発明の非石綿系摩擦材は、摩擦
材と裏金の間に、少なくともその成分の一部として金属
繊維を含むインシュレータを介在させたことを特徴とす
る。
The non-asbestos friction material of the present invention is characterized in that an insulator containing metal fibers as at least a part of its components is interposed between the friction material and the back metal.

【0022】上記本発明の非石綿系摩擦材におけるイン
シュレータは、例えば、上記説明した本発明の非石綿系
インシュレータ材で形成することができる。この場合は
、本発明インシュレータ材を摩擦全体の厚みの1/5〜
1/3となるように使用することが好ましい。
The insulator in the non-asbestos friction material of the present invention can be formed, for example, from the non-asbestos insulator material of the present invention described above. In this case, the insulator material of the present invention should be 1/5 to 1/5 of the total friction thickness.
It is preferable to use it so that it becomes 1/3.

【0023】尚、上記本発明インシュレータ材に、その
熱伝導率が約1.0〜約2.5kcal/mh℃のもの
を用いた場合は、摩擦材とインシュレータ材との温度差
を少なくし、熱応力の発生を抑制することができるので
、特に高負荷の下で使用する摩擦材成形品として好まし
いものとなる。
[0023] When the insulator material of the present invention has a thermal conductivity of about 1.0 to about 2.5 kcal/mh°C, the temperature difference between the friction material and the insulator material is reduced; Since the generation of thermal stress can be suppressed, it is particularly preferable as a molded friction material used under high loads.

【0024】[0024]

【発明の作用】本発明インシュレータ材は、少なくとも
成分の一部として金属繊維を含むことにより、断熱性を
損なうことなく強度を向上させたものであり、又、本発
明摩擦材成形品は、摩擦材と裏金の間に金属繊維を含む
インシュレータを介在させることにより、断熱性を損な
うことなくブレーキ力に対する強度を常温から高温にい
たるまで向上させたものである。
Effects of the Invention The insulator material of the present invention contains metal fibers as at least a part of its components, thereby improving the strength without impairing the heat insulation properties. By interposing an insulator containing metal fiber between the material and the back metal, the strength against braking force is improved from room temperature to high temperature without impairing the heat insulation properties.

【0025】次に本発明を実施例により更に詳細に説明
する。
Next, the present invention will be explained in more detail with reference to Examples.

【0026】[0026]

【実施例1〜5】金属繊維としてスチール繊維、銅繊維
、黄銅繊維を表1に示す割合で、他の成分と均一に混合
し、インシュレータ材料とした。ただし、金属繊維はす
べて平均繊維径50μmで平均繊維長3mmのものを使
用した。次に、以下の組成を有する摩擦材原料を、圧力
400kg/cm2、室温で1分間予備成型を行ない、
続いて圧力600kg/cm2、温度150℃で15分
間圧縮成型を行なった後、200℃で5時間熱処理して
実施例1〜5のディスクパッド用の摩擦材を得た。 スチール繊維    30体積% フェノール樹脂  21体積% 硫酸バリウム    15体積% 銅粉              4体積%黒鉛   
         10体積%石油コークス    2
0体積%
Examples 1 to 5 As metal fibers, steel fibers, copper fibers, and brass fibers were uniformly mixed with other components in the proportions shown in Table 1 to prepare insulator materials. However, all metal fibers used had an average fiber diameter of 50 μm and an average fiber length of 3 mm. Next, a friction material raw material having the following composition was preformed at a pressure of 400 kg/cm2 at room temperature for 1 minute,
Subsequently, compression molding was performed at a pressure of 600 kg/cm2 and a temperature of 150 DEG C. for 15 minutes, followed by heat treatment at 200 DEG C. for 5 hours to obtain friction materials for disc pads of Examples 1 to 5. Steel fiber 30% by volume Phenolic resin 21% by volume Barium sulfate 15% by volume Copper powder 4% by volume graphite
10 volume% petroleum coke 2
0 volume%

【0027】[0027]

【比較例1〜3】金属繊維を使用しないこと以外は上記
実施例と同様にして、比較例1〜3の摩擦材を得た。
[Comparative Examples 1 to 3] Friction materials of Comparative Examples 1 to 3 were obtained in the same manner as in the above example except that no metal fibers were used.

【0028】[0028]

【摩擦試験】上記実施例1〜4の摩擦材及び上記比較例
1〜4の摩擦材に関し、フルサイズダイナモ試験機によ
る温度別摩耗試験(JASO  C427−83、イナ
ーシャ40kgms2)を行ない、摩擦材とインシュレ
ータ境界面の亀裂発生状態を調べると共に、摩擦材とイ
ンシュレータ境界面の剪断強度試験(JASO  C4
44ー78)を行った。その結果を以下の表1に示す。 尚、イナーシャ40kgms2は、4トン〜5トン車定
積荷重状態に相当する。
[Friction test] Regarding the friction materials of Examples 1 to 4 and Comparative Examples 1 to 4, temperature-specific wear tests (JASO C427-83, inertia 40 kgms2) were conducted using a full-size dynamo tester. In addition to investigating the state of crack occurrence at the interface between the insulator and the shear strength test (JASO C4) between the friction material and the insulator interface,
44-78). The results are shown in Table 1 below. Incidentally, the inertia of 40 kgms2 corresponds to a constant load state of a 4- to 5-ton vehicle.

【表1】[Table 1]

【0029】[0029]

【発明の効果】上記表1に明らかなように、摩擦材と裏
金の間に、例えば本発明インシュレータ材のように、少
なくとも成分の一部として金属繊維を含むインシュレー
タを介在させた本発明摩擦材は、断熱性を損なうことな
く、ブレーキ力に対する強度が向上していることがわか
る。
Effects of the Invention As is clear from Table 1 above, the friction material of the present invention includes an insulator containing metal fibers as at least a part of the components, such as the insulator material of the present invention, between the friction material and the back metal. It can be seen that the strength against braking force is improved without compromising the heat insulation properties.

Claims (11)

【特許請求の範囲】[Claims] 【請求項1】  石綿以外の補強繊維と、フェノール樹
脂等の熱硬化性樹脂による結合剤及び硫酸バリウム等の
充填材とからなるインシュレータ材において、少なくと
もその成分の一部として金属繊維を含むことを特徴とす
る非石綿系インシュレータ材。
Claim 1: An insulator material consisting of reinforcing fibers other than asbestos, a binder made of a thermosetting resin such as a phenolic resin, and a filler such as barium sulfate, which contains metal fibers as at least a part of its components. Characteristic non-asbestos insulator material.
【請求項2】  インシュレータ材の成分中の金属繊維
は、その平均繊維径が約30〜約150μmのものであ
る請求項1に記載の非石綿系インシュレータ材。
2. The non-asbestos insulator material according to claim 1, wherein the metal fibers in the components of the insulator material have an average fiber diameter of about 30 to about 150 μm.
【請求項3】  インシュレータ材の成分中の金属繊維
は、その平均繊維長が約0.5〜約6.0mmのもので
ある請求項1に記載の非石綿系インシュレータ材。
3. The non-asbestos insulator material according to claim 1, wherein the metal fibers in the components of the insulator material have an average fiber length of about 0.5 to about 6.0 mm.
【請求項4】  インシュレータ材の成分中の金属繊維
の含有量が、インシュレータ材全量に対して約0.5〜
約20体積%である請求項1に記載の非石綿系インシュ
レータ材。
4. The content of metal fibers in the components of the insulator material is about 0.5 to
The non-asbestos insulator material according to claim 1, wherein the non-asbestos insulator material is about 20% by volume.
【請求項5】  石綿以外の補強繊維と、フェノール樹
脂等の熱硬化性樹脂による結合剤及び硫酸バリウム等の
充填材とからなる非石綿系摩擦材において、摩擦材と裏
金の間に、少なくともその成分の一部として金属繊維を
含むインシュレータを介在させたことを特徴とする非石
綿系摩擦材成形品。
5. In a non-asbestos friction material consisting of reinforcing fibers other than asbestos, a binder made of a thermosetting resin such as phenol resin, and a filler such as barium sulfate, at least the A molded product of a non-asbestos friction material characterized by interposing an insulator containing metal fibers as part of its components.
【請求項6】  インシュレータが、石綿以外の補強繊
維と、フェノール樹脂等の熱硬化性樹脂による結合剤及
び硫酸バリウム等の充填材とからなるインシュレータ材
において、少なくともその成分の一部として金属繊維を
含む非石綿系インシュレータ材により形成されている請
求項5に記載の非石綿系摩擦材成形品。
6. An insulator material comprising reinforcing fibers other than asbestos, a binder made of a thermosetting resin such as a phenol resin, and a filler such as barium sulfate, which contains metal fibers as at least a part of its components. 6. The non-asbestos friction material molded article according to claim 5, which is formed of a non-asbestos insulator material.
【請求項7】  インシュレータ材の成分中の金属繊維
は、その平均繊維径が約30〜約150μmのものであ
る請求項5に記載の非石綿系摩擦材成形品。
7. The non-asbestos friction material molded article according to claim 5, wherein the metal fibers in the components of the insulator material have an average fiber diameter of about 30 to about 150 μm.
【請求項8】  インシュレータ材の成分中の金属繊維
は、その平均繊維長が約0.5〜約6.0mmのもので
ある請求項5に記載の非石綿系摩擦材成形品。
8. The non-asbestos friction material molded article according to claim 5, wherein the metal fibers in the components of the insulator material have an average fiber length of about 0.5 to about 6.0 mm.
【請求項9】  インシュレータ材の成分中の金属繊維
の含有量が、インシュレータ材全量に対して約0.5〜
約20体積%である請求項5に記載の非石綿系摩擦材成
形品。
9. The content of metal fibers in the components of the insulator material is about 0.5 to 0.5 to the total amount of the insulator material.
The non-asbestos friction material molded article according to claim 5, wherein the amount is about 20% by volume.
【請求項10】  インシュレータ材の厚みが、摩擦材
成形品全体の厚みの約1/5〜約1/3である請求項5
に記載の非石綿系摩擦材成形品。
Claim 10: Claim 5 wherein the thickness of the insulator material is approximately 1/5 to approximately 1/3 of the thickness of the entire friction material molded product.
Non-asbestos friction material molded product described in .
【請求項11】  インシュレータ材の熱伝導率が、約
1.0〜約2.5kcal/mh℃である高負荷用非石
綿系摩擦材成形品。
11. A non-asbestos friction material molded article for high load use, wherein the insulator material has a thermal conductivity of about 1.0 to about 2.5 kcal/mh°C.
JP3098069A 1991-04-03 1991-04-03 Non-asbestos-based friction material molded product Expired - Fee Related JP3008218B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3098069A JP3008218B2 (en) 1991-04-03 1991-04-03 Non-asbestos-based friction material molded product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3098069A JP3008218B2 (en) 1991-04-03 1991-04-03 Non-asbestos-based friction material molded product

Publications (2)

Publication Number Publication Date
JPH04306289A true JPH04306289A (en) 1992-10-29
JP3008218B2 JP3008218B2 (en) 2000-02-14

Family

ID=14210054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3098069A Expired - Fee Related JP3008218B2 (en) 1991-04-03 1991-04-03 Non-asbestos-based friction material molded product

Country Status (1)

Country Link
JP (1) JP3008218B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN103821852A (en) * 2013-11-30 2014-05-28 瑞阳汽车零部件(仙桃)有限公司 Environment-friendly brake pad adopting copper-free microcrystalline friction materials
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412766B (en) * 2003-01-22 2005-07-25 Miba Frictec Gmbh FRICTION BODY HAVING A POROUS INTERIOR LAYER BETWEEN A STEEL CARRIER AND A CARBURETING BASE OF CARBON FIBER
JP2010077341A (en) * 2008-09-29 2010-04-08 Hitachi Automotive Systems Ltd Brake friction material
CN103821852A (en) * 2013-11-30 2014-05-28 瑞阳汽车零部件(仙桃)有限公司 Environment-friendly brake pad adopting copper-free microcrystalline friction materials
JP2016044230A (en) * 2014-08-22 2016-04-04 日立オートモティブシステムズ株式会社 Brake friction material

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