JPS58191339A - Wet friction material - Google Patents
Wet friction materialInfo
- Publication number
- JPS58191339A JPS58191339A JP7380882A JP7380882A JPS58191339A JP S58191339 A JPS58191339 A JP S58191339A JP 7380882 A JP7380882 A JP 7380882A JP 7380882 A JP7380882 A JP 7380882A JP S58191339 A JPS58191339 A JP S58191339A
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- friction
- rock wool
- pulp
- wet friction
- 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
- 239000002783 friction material Substances 0.000 title claims abstract description 32
- 239000011490 mineral wool Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 9
- 238000013329 compounding Methods 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 abstract description 3
- 238000007796 conventional method Methods 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010425 asbestos Substances 0.000 description 8
- 229910052895 riebeckite Inorganic materials 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 239000004129 EU approved improving agent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 239000012784 inorganic fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000700198 Cavia Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 231100000405 induce cancer Toxicity 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は車輌の自動変速機の構成部品として使用され
、油中で作動する湿式摩擦材（以下単に摩擦材という）
に関するものである。[Detailed Description of the Invention] This invention is a wet friction material (hereinafter simply referred to as friction material) that is used as a component of an automatic transmission of a vehicle and operates in oil.
It is related to.
従来、この種の摩擦材はセルロース繊維（パルプ）を基
材とし、諸摩擦特性向り剤を配合して製造されており、
摩擦係数が高くて、良好な摩擦性能を示し、基材のから
みが良いので摩擦材の層間剥離をも伴わず良好な摩擦材
として知られている。また、コストも安価で現在この種
の摩擦材の主流となっている。しかし、パルプが基材で
あるためにどうしても耐熱性に劣り。Conventionally, this type of friction material has been manufactured using cellulose fiber (pulp) as a base material and blending various friction properties improving agents.
It is known as a good friction material because it has a high coefficient of friction, exhibits good friction performance, and has good intertwining with the base material, causing no delamination of the friction material. Furthermore, it is inexpensive and is currently the mainstream of this type of friction material. However, because the base material is pulp, it has poor heat resistance.
摩擦係合時に発生する熱によって部分的な焼けを生じ２
表面が凹凸になる。かような現象が生起すると摩擦材の
摩耗が促進され、摩擦係数も減少してくる。即ち耐久性
に乏しい欠点を有する。この耐熱性の向りを意図して当
業界では種々の開発が試みられており、その成果として
多数の方法が提供されている。その中で最も実用的なも
のとして、全摩擦材１００重量部（以下部は虫酸部を意
味する）中に石綿繊維を５〜３０％配合し、セルロース
繊維の補助基材として使用する方法が提供されている。Partial burns may occur due to the heat generated during frictional engagement.2
The surface becomes uneven. When such a phenomenon occurs, wear of the friction material is accelerated and the coefficient of friction decreases. That is, it has a drawback of poor durability. A variety of developments have been attempted in the industry with the aim of improving heat resistance, and as a result of these efforts many methods have been provided. The most practical method is to mix 5 to 30% of asbestos fibers into 100 parts by weight of the total friction material (hereinafter, parts refer to insect acid parts) and use it as an auxiliary base material for cellulose fibers. has been done.
かような石綿繊維を配合した摩擦材は上記セルロース繊
維単独のものに較べて、著るしく耐熱性を改良し、上記
不具合をほぼ解消した。しかし石綿繊維は近年人体に非
常に悪影響を与える点が指摘され、特にモルモットの動
物実験では癌を誘発する事が）γ証されており１石綿弊
害として問われるに至っている。またこの石綿繊維配合
□摩擦材も、従来のパルプ単独基材の摩擦材と同様に初
期の摩擦係数が低いという欠点を有する。又、カラス繊
維や炭素繊維を石綿繊維の代替材料として使用する方法
が提供されているが、いずれも摩擦係数が低く摩耗性が
劣るために実用に供しない。A friction material containing such asbestos fibers has significantly improved heat resistance compared to the above-mentioned one containing only cellulose fibers, and almost eliminates the above-mentioned problems. However, in recent years, it has been pointed out that asbestos fibers have a very harmful effect on the human body, and in animal experiments on guinea pigs in particular, it has been proven that they induce cancer, and asbestos fibers have come to be questioned as one of the harmful effects of asbestos. In addition, this asbestos fiber-containing friction material also has the drawback of a low initial coefficient of friction, similar to the conventional friction material based solely on pulp. Furthermore, methods have been proposed in which glass fibers and carbon fibers are used as substitute materials for asbestos fibers, but both have low coefficients of friction and poor abrasion properties, so they are not practical.
現在当業界では石綿繊維を含有せずに耐熱ヰが良好で、
初期の摩擦係数が高く、■つ従来のパルプ基材摩擦材が
具備している良好な特性をも損わない摩擦材の開発に目
が向けられている７く、耐熱性の良い、即ち耐摩耗性、
耐久性にすぐれた摩擦材を提供することである。Currently in the industry, there are products that do not contain asbestos fibers and have good heat resistance.
Attention is being focused on the development of friction materials that have a high initial coefficient of friction and do not impair the good properties of conventional pulp-based friction materials7. abrasive,
An object of the present invention is to provide a friction material with excellent durability.
この発明の目的は特許請求の範囲に記載した事項を実施
することによって達成される。The objects of the invention are achieved by carrying out the matters described in the claims.
この発明の原理は無機繊維に属するロックウールをパル
プの補助基材として配合することにより、耐熱性を向上
させようとするものである。The principle of this invention is to improve heat resistance by blending rock wool, which belongs to inorganic fibers, as an auxiliary base material for pulp.
この発明でいうロックウールとは、数種の鉱石を高熱で
溶融したものを遠心力や圧縮空気で吹きとばし、細い繊
維状にした非晶質の人工無機繊維である。このロックウ
ールは不燃性であり断熱性に優れ、吸音効果が高いとこ
ろから。Rock wool as used in this invention is an amorphous artificial inorganic fiber made by melting several types of ore at high heat and blowing it away using centrifugal force or compressed air to form thin fibers. This rock wool is nonflammable, has excellent insulation properties, and has a high sound absorption effect.
１ミとして建材用として使用されている繊維である。This fiber is used as a building material.
ロックウールを抄紙時にパルプと諸ｑ擦特性向ト剤とと
もに配合し、常法に従って得られた摩擦材は本発明の目
的を達成しうる極めて実用性に富む優れた摩擦材となる
。A friction material obtained by blending rock wool with pulp and various friction properties improving agents during paper making according to a conventional method is an excellent friction material that is highly practical and capable of achieving the objects of the present invention.
この発明の全摩擦材１００部中の各配合剤の配合割合を
述べると、ロックウールは１５〜４５部であり、好まし
くは２０〜２５部である。そしてこれらに緒摩擦特性向
り剤を１５〜３５部配合し、結合剤を２０〜４０部含浸
させる。The blending ratio of each compounding agent in 100 parts of the total friction material of this invention is 15 to 45 parts of rock wool, preferably 20 to 25 parts. Then, 15 to 35 parts of a friction property improving agent are added to these, and 20 to 40 parts of a binder are impregnated therein.
緒摩擦特性向り剤とは、この種の摩擦材が油中で使用さ
れるところから、摩ｍｌ数が不足しやすいので、主とし
て摩擦係数を向トさせるために配合されるものである。Since this type of friction material is used in oil, the number of friction ml is likely to be insufficient, so the additive is mainly blended to improve the coefficient of friction.
また場合によってはその池各摩擦材の特殊な要求品質を
満すために配合されるものであり、摩擦係数を故意に下
げる為に添加する場合もある。In some cases, it is added to meet the special quality requirements of each friction material, and in some cases it is added to intentionally lower the coefficient of friction.
これら緒摩擦特性向り剤として無機物と有機物が知られ
ている。この無機物に属するものとしてはベンガラ、炭
酸カルシウム、炭酸マグネシウム、硫酸バリウム、クレ
ー、シリカ及びケイソー七等である。この無機物の大き
さは通常粒径があまり大きいと相手材を係合時に傷つけ
る等の不具合を生じるので５０μ以下の粒径のものを使
用すると良い。また前記有機物とは有機カシューダスト
、ラバーダスト及び木粉等である。Inorganic substances and organic substances are known as friction property improving agents. Those belonging to this inorganic substance include red iron, calcium carbonate, magnesium carbonate, barium sulfate, clay, silica, and diaphragm. As for the size of this inorganic material, it is preferable to use a particle size of 50 μm or less because if the particle size is too large, problems such as damaging the mating material will occur during engagement. Further, the organic substances include organic cashew dust, rubber dust, and wood flour.
本発明の摩擦材の製法としては周知のものがいずれも好
ましく適用でき特に制限を設けない。Any well-known method can be preferably applied to the manufacturing method of the friction material of the present invention, and there are no particular limitations.
この１例について述べると、ロックウール、パルプ及び
緒摩擦特性向Ｆ剤を配合して抄紙した後、順に打抜き、
結合剤の含浸、風乾、乾燥炉内でプレキュア−９予め接
着剤を塗布した芯金とともに加圧加熱成形、アフターキ
ュアー及び放冷後仕りげ加工して摩擦材を得る方法が挙
げられる。To describe one example of this, after paper is made by blending rock wool, pulp, and an F agent for improving friction properties, punching is performed in order.
Examples of methods include impregnation with a binder, air drying, precure-9 in a drying oven, pressurizing and heating molding together with a core bar coated with an adhesive in advance, after-curing, and finishing after cooling to obtain a friction material.
（実施例１．２及び比較例）
１−表のフェノール系樹脂を除く配合剤を個々に配合し
て抄紙し、これをスタンピングマシンで打抜いて所定形
状のペーパーベースを得た。(Example 1.2 and Comparative Example) Paper was made by individually blending the ingredients other than the phenolic resin shown in Table 1, and the paper was punched out using a stamping machine to obtain a paper base of a predetermined shape.
これに予め溶剤にて固形分を調合したフェノール系樹脂
を収容した含浸槽にて含浸させ、約５００Ｃにて２０分
風乾し、約１６０°Ｃに保持した乾燥炉で４０分間プレ
キュア−を行った。その後予め接着剤を塗布した芯金と
ともに１７０℃１面圧１００ｋｇ ／ｄで２分間加圧加
熱成形し、約１７０℃で１０分間アフターキュアーした
後、放冷後仕りげ加圧を施して摩擦材完成品を得た。こ
れを実施例以り、実施例１．２及び比較例で得られた摩
擦材を所定の試験機にかけて試験結果を添付図に示す。This was impregnated in an impregnating tank containing a phenolic resin whose solid content had been mixed with a solvent in advance, air-dried at about 500 C for 20 minutes, and pre-cured for 40 minutes in a drying oven maintained at about 160 C. . Thereafter, the material was heat-formed at 170°C for 2 minutes with a core metal coated with adhesive at a surface pressure of 100 kg/d for 2 minutes, after-cured for 10 minutes at about 170°C, left to cool, and finished with pressure. Got the finished product. In this Example, the friction materials obtained in Example 1.2 and Comparative Example were subjected to a predetermined testing machine, and the test results are shown in the attached diagram.
本発明は図から明らかな如く、耐熱性が良いので、耐摩
耗性を向上させると共に、耐久性を著るしく向トさせて
いる。さらに本発明は従来設備をもそのまま使用でき、
極めて製造容易な摩擦材を提供している。As is clear from the figures, the present invention has good heat resistance, so it improves wear resistance and significantly improves durability. Furthermore, the present invention allows conventional equipment to be used as is.
We provide friction materials that are extremely easy to manufacture.
図は本発明の摩擦材と従来の摩擦材の動摩擦係数とサイ
クル数の関係を示すグラフであり。
図に於いて実施例１は−・−９実施例２は−・−比較例
は一×−で示している。
特許出願人
アイシン化工株式会社The figure is a graph showing the relationship between the dynamic friction coefficient and cycle number of the friction material of the present invention and a conventional friction material. In the figure, Example 1 is indicated by -.-9 Example 2 is indicated by -.- Comparative example is indicated by 1×-. Patent applicant Aisin Kako Co., Ltd.
Claims (2)
摩擦材において、該湿式摩擦材は少くともロックウール
を含有していることを特徴とする前記湿式摩擦材。(1) A wet friction material used as a component of an automatic transmission of a vehicle, characterized in that the wet friction material contains at least rock wool.
１００重量部中に１５〜４５重量部である。特許請求の
範囲第１項記載の湿式摩擦材。(2) The blending ratio of the rock wool is 15 to 45 parts by weight in 100 parts by weight of the total wet friction material. A wet friction material according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7380882A JPS58191339A (en) | 1982-04-30 | 1982-04-30 | Wet friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7380882A JPS58191339A (en) | 1982-04-30 | 1982-04-30 | Wet friction material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58191339A true JPS58191339A (en) | 1983-11-08 |
| JPH0239651B2 JPH0239651B2 (en) | 1990-09-06 |
Family
ID=13528828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7380882A Granted JPS58191339A (en) | 1982-04-30 | 1982-04-30 | Wet friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58191339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009500511A (en) * | 2005-07-11 | 2009-01-08 | サルザー・フリクション・システムズ・（ユーエス）・インコーポレーテッド | Moisturizing friction material, system and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527380A (en) * | 1978-06-02 | 1980-02-27 | Bendix Corp | Organic abrasive material |
-
1982
- 1982-04-30 JP JP7380882A patent/JPS58191339A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527380A (en) * | 1978-06-02 | 1980-02-27 | Bendix Corp | Organic abrasive material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009500511A (en) * | 2005-07-11 | 2009-01-08 | サルザー・フリクション・システムズ・（ユーエス）・インコーポレーテッド | Moisturizing friction material, system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0239651B2 (en) | 1990-09-06 |
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