JPS63195437A - Friction material - Google Patents
Friction materialInfo
- Publication number
- JPS63195437A JPS63195437A JP2532587A JP2532587A JPS63195437A JP S63195437 A JPS63195437 A JP S63195437A JP 2532587 A JP2532587 A JP 2532587A JP 2532587 A JP2532587 A JP 2532587A JP S63195437 A JPS63195437 A JP S63195437A
- Authority
- JP
- Japan
- Prior art keywords
- bulky
- string
- fibers
- friction material
- thermosetting resin
- 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
- 239000002783 friction material Substances 0.000 title claims abstract description 33
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 18
- 239000005060 rubber Substances 0.000 claims abstract description 18
- 239000003365 glass fiber Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 abstract description 4
- 239000012784 inorganic fiber Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- -1 for example Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002964 rayon Substances 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920006282 Phenolic fiber Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、主として乾式クラッチのクラッチディスクや
ブレーキライニングに使用される摩擦材に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a friction material mainly used for clutch discs and brake linings of dry clutches.
乾式クラッチは、手動変速ギアを備えた自動車などでエ
ンジンと変速ギアとの間に介在し、駆動力を断続するも
ので、駆動軸に掛合するクラッチディスクとこのクラッ
チディスクに当接するプレッシャプレートおよびフライ
ホイールを有している。クラッチディスクはセンタープ
レートの両面に摩擦材が固着された構成となっている。A dry clutch is interposed between the engine and the transmission gear in a car equipped with a manual transmission gear, etc., and connects and disconnects the driving force.A dry clutch is a device that connects the engine and the transmission gear, and connects the clutch disc that engages with the drive shaft, and the pressure plate and flywheel that come into contact with the clutch disc. Has wheels. The clutch disc has a structure in which friction material is fixed to both sides of a center plate.
このような摩擦材は、従来、アスベスト、ガラス繊維等
の紐に、カシューダストやゴムダスト等の有機成分およ
び沈降性硫酸バリウム等の無機成分の添加剤を付着させ
、結合樹脂を含浸させた後、円盤状に巻いたものを成形
し使用している。Conventionally, such friction materials are made by attaching additives such as organic components such as cashew dust or rubber dust and inorganic components such as precipitated barium sulfate to a string made of asbestos or glass fiber, and then impregnating it with a binding resin. It is used by forming it into a disk shape.
しかしアスベストが人体に対し有害であるという報告が
出てからは、アスベストを含まない摩擦材の研究が進め
られている。However, since reports emerged that asbestos is harmful to the human body, research has been underway into friction materials that do not contain asbestos.
アスベストを含まない摩擦材として、例えば特公昭６０
−２８５１９号公報には、耐摩耗粉を付着または分散せ
しめた有機繊維に撚りを加えて単糸とし、かさ高加工し
たガラス繊維および金属と共に合撚した摩擦材が開示さ
れている。For example, as a friction material that does not contain asbestos,
Japanese Patent No. 28519 discloses a friction material in which organic fibers to which wear-resistant powder is attached or dispersed are twisted into single yarns, which are combined and twisted together with bulked glass fibers and metals.
しかし上記公報に開示された摩擦材は、有機織雄とガラ
ス繊維の束が分離された状態で構成されており、均一性
に欠けている。このため摩擦係数が変動しやすいのでシ
ャダー性能が充分でなく。However, the friction material disclosed in the above-mentioned publication is composed of a bundle of organic weaves and glass fibers separated from each other, and lacks uniformity. For this reason, the coefficient of friction tends to fluctuate, resulting in insufficient shudder performance.
また耐摩耗性、耐熱性、バースト強度が劣っている。な
お、シャダーとは車両の発進時に起きる異常振動で、ク
ラッチを介して継続されている駆動軸と被駆動軸との間
の捩れ振動が車体各部を伝播し、Ｊ！！転者に伝わる不
快な振動のことである。It also has poor abrasion resistance, heat resistance, and burst strength. Note that shudder is an abnormal vibration that occurs when the vehicle starts, and the torsional vibration between the drive shaft and driven shaft that is continued via the clutch propagates through various parts of the vehicle body, causing J! ! This refers to unpleasant vibrations that are transmitted to the user.
本発明は上記の欠点を解消し、シャダー性能、１耐摩耗
性、耐熱性、バースト強度にすぐれた摩擦材を提供する
ものである。The present invention eliminates the above-mentioned drawbacks and provides a friction material with excellent shudder performance, wear resistance, heat resistance, and burst strength.
本発明者らは、摩擦材のシャダー性能、耐摩耗性、耐熱
性、バースト強度等が劣化する原因を研究した結果、以
下のことを見出した。摩擦材に配合されている繊維は、
嵩高加工してある方が好ましいが、各繊維成分毎に嵩高
加工して配合するより、各繊維成分を同時に嵩高加工し
て均一になるように−した方が好ましい。ゴム成分が配
合された摩擦材は、ゴムの中にガラスｍ維が束になって
存在すると、使い込んでいく途中でゴムの部分とガラス
繊維の部分で凹凸ができ、摩擦係数が変動しやすい。そ
のためゴムの中に繊維のフィラメントが一本一本分散さ
れ均一に存在することが望ましい。また繊維が束の状態
で存在すると、ある部分ではゴムが多くなり、その部分
が熱に弱くなりやすい。The present inventors have researched the causes of deterioration of the shudder performance, wear resistance, heat resistance, burst strength, etc. of friction materials, and have found the following. The fibers contained in the friction material are
It is preferable that the fibers be bulk-processed, but rather than bulk-processing each fiber component and blending them, it is preferable to bulk-process each fiber component at the same time so that they are uniform. If a friction material containing a rubber component is bundled with glass m fibers in the rubber, unevenness will occur between the rubber part and the glass fiber part as the material is used, and the coefficient of friction will tend to fluctuate. Therefore, it is desirable that the fiber filaments be dispersed one by one and exist uniformly in the rubber. Furthermore, when fibers exist in bundles, there is more rubber in certain areas, making those areas more susceptible to heat.
上記の知見の下になされた本発明の第１発明の摩擦材は
、ガラスｔｌＩｍと無機または（および）有Ｖ＆繊維と
を併せて嵩高加工してある嵩高紐に、熱硬化性樹脂が含
浸され成形されている。The friction material of the first aspect of the present invention, which was made based on the above knowledge, has a bulky string made of glass tlIm and inorganic or (and) organic V& fibers, which is processed to make it bulky, and is impregnated with a thermosetting resin. Molded.
本発明の第２発明の摩擦材は、ガラス繊維と無機または
（および）有機繊維とを併せて嵩高加工してある嵩高紐
に、ゴム成分と熱硬化性樹脂が含浸され成形されている
。The friction material of the second aspect of the present invention is formed by impregnating a rubber component and a thermosetting resin into a bulky cord made of glass fibers and inorganic or (and) organic fibers and processed to make them bulky.
無機ｍ維としては、例えばカーボン繊維、スラグウール
、金属ａｍ、ロックウールが使用できる。有＊ｔａａと
しては、例えばレーヨン、コツトン、芳香族ポリアミド
ｍ維、ノボロイドＦａ雄が使用できる。ゴム成分は、例
えばブタジェン−スチレンゴム、ブタジェン−アクリロ
ニトリルゴム、クロロブレンゴムが使用できる。熱硬化
性樹脂は、例えばフェノール樹脂、各種変性フェノール
樹脂、メラミン樹脂、エポキシ樹脂を使用できる。この
他、無機質粉末充填剤、例えば硫酸バリウム粉末、炭酸
カルシウム、シリカを添加してもよい。As the inorganic fiber, for example, carbon fiber, slag wool, metal AM, and rock wool can be used. As the taa, for example, rayon, cotton, aromatic polyamide fiber, and novoloid Fa male can be used. As the rubber component, for example, butadiene-styrene rubber, butadiene-acrylonitrile rubber, and chloroprene rubber can be used. As the thermosetting resin, for example, phenol resin, various modified phenol resins, melamine resin, and epoxy resin can be used. In addition, inorganic powder fillers such as barium sulfate powder, calcium carbonate, and silica may be added.
摩擦材を製造するには、先ずガラス繊維と無機、有機繊
維を同時に、例えば空気噴射（エアジェツト）式の嵩高
加工を施す０両者のｔａ雄を夫々別なフィードロールで
送り出し、ガイドローラで誘導して一緒にし、エアジェ
ツト気流中を通して一緒のま〜デリベリロールで曳き出
し、巻き取ってゆく。このときフィードロールの送り速
度とプリヘリロールの曳き出し速度とのオーバーフィー
ド率は２〜１５％にしておく。なおオーバーフィード率
とは、
これにより両者のｍｍはフィラメント一本−木に開繊す
ると同時に、均一に混合し、各フィラメントにはクリン
プが与えられる。その嵩高紐を、熱硬化性樹脂の溶液に
浸漬してから乾燥する。第２発明の摩擦材では、この後
、ゴム成分の溶液に浸漬してから乾燥する。このように
して樹脂が付着した嵩高紐を円環状に巻取ってから加熱
、加圧成形する。それを熱処理（アフタベーキング）し
てできた成形品の表面を研摩し、必要な孔明けなどをし
て摩擦材が得られる。To manufacture a friction material, first, glass fibers and inorganic/organic fibers are subjected to bulk processing using, for example, an air jet method.The two materials are fed out using separate feed rolls and guided by guide rollers. Then, pass through the air jet air stream, pull it out with the same delivery roll, and roll it up. At this time, the overfeed rate between the feeding speed of the feed roll and the drawing speed of the pre-heli roll is set to 2 to 15%. Note that the overfeed rate is as follows.Thus, both millimeters are opened into one filament and simultaneously mixed uniformly, and each filament is given a crimp. The bulky string is immersed in a solution of thermosetting resin and then dried. In the friction material of the second invention, the material is then dipped in a solution of a rubber component and then dried. The bulky string coated with resin in this way is wound up into a circular ring and then heated and pressure molded. After baking, the surface of the molded product is polished and the necessary holes are made to obtain a friction material.
上記のように構成された本発明の摩擦材は、ガラス繊維
と他の無機、有機繊維のフィラメントが一本一本分散に
クリンプして散在している。そのため高温におけるバー
スト強度が強いうえ、シャダー性能が良くなる。また摩
擦係数が高すぎるというガラス繊維の性質を、他のｔａ
維が均一に混在するということにより希釈するため、な
お一層、シャダー性能が良くなる。第２発明の摩擦材で
は、クリンプした繊維の間隙にゴムが充填した状態にな
り、ゴム部分が集中することがないから耐熱性に優れて
いる。使い込んでいってもゴム部分とガラス繊維部分の
凹凸が生ずることがないから、摩擦係数が安定している
６
〔実施例〕
以下、本発明を適用する摩擦材の実施例を詳細に説明す
る。In the friction material of the present invention configured as described above, filaments of glass fibers and other inorganic and organic fibers are crimped and scattered one by one. Therefore, the burst strength at high temperatures is strong, and the shudder performance is improved. In addition, the property of glass fiber that the coefficient of friction is too high is
The shudder performance is further improved because the fibers are evenly mixed and diluted. The friction material of the second invention has excellent heat resistance because the gaps between the crimped fibers are filled with rubber and the rubber portions are not concentrated. Since the rubber portion and the glass fiber portion do not become uneven even after use, the coefficient of friction is stable.6 [Example] Examples of the friction material to which the present invention is applied will be described in detail below.
下記の第１表には摩擦材に配合される各原料の重量比率
が示してある。各繊維の比率は紐全体を１００とした場
合の重量％、樹脂およびゴムの比率は紐全体を１００と
した場合に対する重量比である。この表で実施例１〜実
施例６は本発明を適用した例、比較例１〜比較例３は本
発明を適用外の例である。Table 1 below shows the weight ratio of each raw material added to the friction material. The ratio of each fiber is the weight percentage when the whole string is taken as 100, and the ratio of resin and rubber is the weight ratio when the whole string is taken as 100. In this table, Examples 1 to 6 are examples to which the present invention was applied, and Comparative Examples 1 to 3 are examples to which the present invention was not applied.
第１表に示す各実施例で所定の比率のガラス繊維とレー
ヨン繊維雄、芳香族ポリアミド繊維、カーボン繊維を同
時に、オーバーフィード率８％で、ジェット気流中を通
過させて嵩高紐を得る。比較例１〜３のガラス繊維、レ
ーヨン繊維は、夫々個別にジェット気流中を通過させて
嵩高紐を得る。In each of the Examples shown in Table 1, bulky cords were obtained by simultaneously passing glass fibers, rayon fibers, aromatic polyamide fibers, and carbon fibers in predetermined ratios through a jet stream at an overfeed rate of 8%. The glass fibers and rayon fibers of Comparative Examples 1 to 3 were individually passed through a jet stream to obtain bulky cords.
この嵩高紐にフェノール樹脂溶液を含浸してから、 １
２０°Ｃで１５分間乾燥する。実施例２および実施例５
の紐については、さらにスチレン−ブタジェンゴム（加
硫剤を含む）の溶液を含浸してから、６０℃で８分間乾
燥する。このようにしてフェノール樹脂とゴムが付着し
ている嵩高紐を、いわゆるサーモイド法により円環状°
に巻取る。それを金型に入れて １５０℃で１５分間プ
レス成形をする。さらに１５０°Ｃで１５時間熱処理を
した後、表面を研摩し、必要な孔明けなどをして摩擦材
が得られる。上記により製造した各摩擦材のサイズは２
３６ｏ＋＋ａすＸ １５０ｍｍすＸ ３．５ｍｍｔであ
る。After impregnating this bulky string with phenolic resin solution, 1
Dry at 20°C for 15 minutes. Example 2 and Example 5
The string is further impregnated with a solution of styrene-butadiene rubber (containing a vulcanizing agent) and then dried at 60° C. for 8 minutes. In this way, the bulky string with phenolic resin and rubber attached is shaped into an annular shape using the so-called thermoid method.
Wind it up. Place it in a mold and press mold at 150℃ for 15 minutes. After further heat treatment at 150°C for 15 hours, the surface is polished and necessary holes are made to obtain a friction material. The size of each friction material manufactured as above is 2
36o++a x 150mm x 3.5mmt.
この摩擦材はセンタープレートの両側にリベットにより
取付けられて、クラッチディスクの主要構成部分が完成
する。This friction material is attached by rivets to both sides of the center plate, completing the main components of the clutch disc.
第２表には、上記各側により製造した摩擦材の性能が示
してある。Table 2 shows the performance of friction materials manufactured by each of the above sides.
（以下余白）
第１表 原料重量比率
第２表 性能
上記第２表中のシャダーは各側の摩擦材を自動車のクラ
ッチディスクに実装して、クラッチ着脱を繰り返したと
きの加速度（単位ｇ）で２０００サイクル作動させたと
きの平均値が示してある。この値が小さいほど異常振動
が少ない。実施例１〜実施例６の摩擦材は、比較例１〜
比較例３の摩擦材に比べて、シャダーが小さい。(Leaving space below) Table 1 Raw material weight ratio Table 2 Performance The shudder in Table 2 above is the acceleration (unit: g) when the friction material on each side is mounted on the clutch disc of an automobile and the clutch is repeatedly connected and disconnected. Average values are shown after 2000 cycles of operation. The smaller this value is, the less abnormal vibration occurs. The friction materials of Examples 1 to 6 were the same as those of Comparative Examples 1 to 6.
Compared to the friction material of Comparative Example 3, the shudder is smaller.
同じく表中のバーストは、バースト試験機により、試験
条件が２００℃、４０００ｒｐｍで１分間保持後、３０
０ ｒｐｍの１昇速度でなされたもので、各値は破壊す
るときの回転数（ｒｐｍ）である。実施例１〜実施例６
の摩擦材は、比較例１〜比較例３の摩擦材に比べて、バ
ーストが高い値を示している。Similarly, the burst in the table is determined by a burst tester under test conditions of 200°C and 4000 rpm after being held for 1 minute.
This was done at a rate of increase of 1 at 0 rpm, and each value is the rotational speed (rpm) at the time of destruction. Examples 1 to 6
The friction material shown in FIG. 1 shows a higher burst value than the friction materials of Comparative Examples 1 to 3.
Claims (1)
て嵩高加工してある嵩高紐に、熱硬化性樹脂が含浸され
成形されていることを特徴とする摩擦材。 ２、ガラス繊維と無機または／および有機繊維とを併せ
て嵩高加工してある嵩高紐に、ゴム成分と熱硬化性樹脂
が含浸され成形されていることを特徴とする摩擦材。[Scope of Claims] 1. A friction material characterized in that a bulky string made of glass fibers and inorganic or/and organic fibers is processed to be bulky and is impregnated with a thermosetting resin and molded. 2. A friction material characterized in that a bulky string made of glass fibers and inorganic or/and organic fibers is processed to be bulky and is impregnated with a rubber component and a thermosetting resin and molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2532587A JPS63195437A (en) | 1987-02-04 | 1987-02-04 | Friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2532587A JPS63195437A (en) | 1987-02-04 | 1987-02-04 | Friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63195437A true JPS63195437A (en) | 1988-08-12 |
Family
ID=12162811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2532587A Pending JPS63195437A (en) | 1987-02-04 | 1987-02-04 | Friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63195437A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11209063B2 (en) | 2016-11-02 | 2021-12-28 | Akebono Brake Industry Co., Ltd. | Friction material composition and friction material |
-
1987
- 1987-02-04 JP JP2532587A patent/JPS63195437A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11209063B2 (en) | 2016-11-02 | 2021-12-28 | Akebono Brake Industry Co., Ltd. | Friction material composition and friction material |
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