JPS6322888A - Porous wet friction material - Google Patents
Porous wet friction materialInfo
- Publication number
- JPS6322888A JPS6322888A JP16629486A JP16629486A JPS6322888A JP S6322888 A JPS6322888 A JP S6322888A JP 16629486 A JP16629486 A JP 16629486A JP 16629486 A JP16629486 A JP 16629486A JP S6322888 A JPS6322888 A JP S6322888A
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- wet friction
- porous wet
- molded article
- porosity
- 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 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 5
- 238000010304 firing Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 239000005011 phenolic resin Substances 0.000 abstract description 3
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 229910021397 glassy carbon Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- -1 graphite powder Chemical compound 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003746 surface roughness Effects 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)
- 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、強度、硬度が共に高く、耐薬品性で、自動車
ブレーキ等に好適な摩擦特性の優れた多孔質湿式摩擦材
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a porous wet friction material that has high strength and hardness, is chemical resistant, and has excellent friction properties suitable for automobile brakes and the like.
従来、自動車分野に用いられる摩擦材としては、アスベ
ストを主材としたちのが用いられており、また、クラッ
チ板においては、アスベストを主材としたものの代苔と
して、紙を主材としたものも用いられている。Traditionally, asbestos-based friction materials have been used in the automobile field, and in clutch plates, paper-based materials have been used as moss substitutes for asbestos-based friction materials. is also used.
しかし、アスベスト製摩擦材は、粉末の飛散が多く、環
境公害上の問題があり、その使用が年々制限されてきて
おり、また、アスベストの式台として用いられる紙を主
原料とするものは高負荷の摩擦に弱い欠点がある。However, asbestos friction materials have a lot of powder scattering, which poses environmental pollution problems, and their use is becoming more and more restricted year by year.Furthermore, those made of paper, which is used as an asbestos ceremonial stand, are expensive. The disadvantage is that it is weak against load friction.
本発明は上記の事情に鑑み、上記欠点を解決するととも
に、製法が容易で、コストが安く、強度。In view of the above-mentioned circumstances, the present invention solves the above-mentioned drawbacks, and has an easy manufacturing method, low cost, and high strength.
硬度が高く、摩擦特性の優れた多孔質湿式摩擦材を提供
することを目的とする。The purpose of the present invention is to provide a porous wet friction material that has high hardness and excellent friction properties.
本発明は上記の目的を達成すべくなされたもので、その
要旨は、炭素粉末（黒鉛粉末を含む。以下、代表的に黒
鉛粉末で表わす。）とセルロースＩＩＮ混合物を成形し
、この成形体に熱硬化性樹脂を含浸した後焼成してなる
気孔率２５〜６０％の多孔質湿式Ｉ！ｊ擦材環材る。The present invention has been made to achieve the above object, and the gist thereof is to mold a mixture of carbon powder (including graphite powder, hereinafter typically referred to as graphite powder) and cellulose IIN, and to mold this molded body. A porous wet type I with a porosity of 25 to 60%, which is obtained by impregnating with a thermosetting resin and then firing it! j Rubber ring material.
（発明の具体的構成Ｊ３よび作用） 以下、本発明の詳細な説明する。(Specific structure J3 and operation of the invention) The present invention will be explained in detail below.
本発明の多孔質湿式ＦＪ環材は、例えば次のようにして
つくられる。すなわち、平均粒径が１〜５０μｍの黒鉛
微粉末１０〜４０ｗｔ％およびセルロース繊維６０〜９
Ｑｗｔ％を混合して、これを抄紙法によってシートとす
る。このシートにフェノール樹脂、エポキシ樹脂等の熱
硬化性樹脂を含浸させ、この複数枚を１００〜２００℃
の加熱下、３０〜２００に９／ｃｄの圧力を加えて積層
する。The porous wet FJ ring material of the present invention is produced, for example, as follows. That is, 10 to 40 wt% of fine graphite powder with an average particle size of 1 to 50 μm and 60 to 9 wt% of cellulose fibers.
Qwt% is mixed and this is made into a sheet by a paper making method. This sheet is impregnated with a thermosetting resin such as phenol resin or epoxy resin, and the sheets are heated at 100 to 200°C.
Under heating, a pressure of 9/cd is applied to 30 to 200 to laminate.
これを５００〜３０００℃の温度で焼成して、ガラス状
カーボンの多孔質湿式ｗｍ材が得られる。This is fired at a temperature of 500 to 3000°C to obtain a porous wet wm material of glassy carbon.
このＩ擦Ｕの気孔率は２５〜６０％である。The porosity of this I-skin U is 25 to 60%.
上記摩擦材の代表例についで特性を示せば曲げ強度は５
００〜１５００Ｋｇ／ｃｉ、密度は１．２〜１．７、シ
ョアー硬度は５０〜８０で、耐摩耗性。If we show the characteristics of the typical example of the friction material mentioned above, the bending strength is 5.
00-1500Kg/ci, density 1.2-1.7, Shore hardness 50-80, wear resistance.
耐破壊性に優れたものである。したがってこれを湿式ク
ラッチ板として用いた場合、冷却オイルが含浸され、冷
ｎ１性が良好である。また黒鉛微粉末。It has excellent breakage resistance. Therefore, when this is used as a wet type clutch plate, it is impregnated with cooling oil and has good cold n1 properties. Also fine graphite powder.
を多ｍに含有しているため、優れた耐熱性と高いエネル
ギー吸収特性を有し、当接する相手の面粗度が大きいも
のに対しても有効である。さらに、高圧縮、或いは低圧
縮時においても、はとんど変らないａ！擦係数を示すた
め、種々なスペックに幅広く対応することが出来る。Because it contains a large amount of , it has excellent heat resistance and high energy absorption characteristics, and is effective even when the object it comes into contact with has a large surface roughness. Furthermore, a! remains almost unchanged even under high compression or low compression. Since it shows the coefficient of friction, it can be applied to a wide variety of specifications.
次に実施例を示して本発明を説明する。 Next, the present invention will be explained with reference to Examples.
平均粒径３０μｍの黒鉛微粉末２Ｑｗｔ％とセルロース
１１ｔ４８０ｗｔ％を混合した混合物を用い、抄紙法に
より黒鉛粉末を含有したシートをつくった。このシート
に１Ｑｗｔ％のフェノール樹脂（昭和高分子製、ＢＲＬ
−１２０２）を含有した水溶液を含浸させた後、複数枚
を積層し、１６０℃の加熱下、１１００Ａ／ｃｉで加圧
し、約１０＃Ｉの厚さの積層板とした。これを９６０℃
／１５日の焼成速度で炭化させ、ガラス状カーボンの多
孔質湿式ＩＩ擦環材得た。A sheet containing graphite powder was produced by a papermaking method using a mixture of 2Qwt% of fine graphite powder with an average particle size of 30 μm and 480wt% of 11t of cellulose. This sheet was coated with 1Qwt% phenol resin (Showa Kobunshi Co., Ltd., BRL).
-1202), a plurality of sheets were laminated, heated at 160° C., and pressed at 1100 A/ci to form a laminate with a thickness of about 10 #I. This is 960℃
Carbonization was carried out at a firing rate of /15 days to obtain a porous wet ring ring material made of glassy carbon.
この摩擦材の曲げ強度は１０００Ｋｇ／ｄ、ショアー硬
度は７０、気孔率は４０％であった。また、これを湿式
クラッチとして、入口温度８０℃、面圧３．１６？Ｔｆ
ｆ／ｃｊの条件下、回転数を１０００〜３５０Ｏｒｐｍ
でテストしたところ、第１図に示すようにｖＪｒＭｒ！
Ａ係数は０．１５であった。また１０．０００サイクル
の熱負荷２２０
８９２ｒｄ／ｅｒａ’ ｓｅｔのテストでは摩耗率５．
０×１Ｏ−８ｃｄ／Ｋｙ・ｍの極めて小さい値を示した
。This friction material had a bending strength of 1000 kg/d, a Shore hardness of 70, and a porosity of 40%. Also, using this as a wet clutch, the inlet temperature is 80°C and the surface pressure is 3.16? Tf
Under the condition of f/cj, the rotation speed is 1000~350Orpm.
When tested with vJrMr!, as shown in Figure 1,
The A coefficient was 0.15. In addition, in a test with a heat load of 220 892rd/era' set of 10,000 cycles, the wear rate was 5.
It showed an extremely small value of 0x1O-8cd/Ky·m.
以上述べたように、本発明に係る摩擦材は、ガラス状カ
ーボンであるため、公害上の問題発生がなく、強度、硬
度が共に高く、気孔率が大きく、例えば湿式クラッチ板
として用いた場合、Ｆ！擦特性、耐摩耗性、耐衝撃性お
よび耐熱性に優れ、さらにコスト的にも右利であるなど
、多くの長所を有する。As described above, since the friction material according to the present invention is glassy carbon, it does not cause any pollution problems, has high strength and hardness, and has a large porosity, and when used, for example, as a wet clutch plate, F! It has many advantages, including excellent friction properties, abrasion resistance, impact resistance, and heat resistance, as well as being cost-effective.
第１図は、入口温度８０℃、血圧３．１６に９ ／ ｃ
ｉでテストしたクラッチ板の回転数と動Ｉ！ｉ！擦係数
との関係を示す図である。Figure 1 shows an inlet temperature of 80°C and a blood pressure of 3.16 to 9/c.
Rotation speed and dynamic of the clutch plate tested with i! i! It is a figure showing the relationship with a friction coefficient.
Claims (2)
成形体に熱硬化性樹脂を含浸した後焼成してなる気孔率
２５〜６０％の多孔質湿式摩擦材。(1) A porous wet friction material having a porosity of 25 to 60%, which is obtained by molding a mixture of carbon powder and cellulose fibers, impregnating the molded body with a thermosetting resin, and then firing it.
造してなるシートである特許請求の範囲第１項記載の多
孔質湿式摩擦材。(2) The porous wet friction material according to claim 1, wherein the molded body is a sheet formed from a mixture of graphite powder and cellulose fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16629486A JPS6322888A (en) | 1986-07-15 | 1986-07-15 | Porous wet friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16629486A JPS6322888A (en) | 1986-07-15 | 1986-07-15 | Porous wet friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6322888A true JPS6322888A (en) | 1988-01-30 |
Family
ID=15828676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16629486A Pending JPS6322888A (en) | 1986-07-15 | 1986-07-15 | Porous wet friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6322888A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06229434A (en) * | 1993-01-29 | 1994-08-16 | Aisin Chem Co Ltd | Wet type friction material |
| WO2014176301A1 (en) * | 2013-04-25 | 2014-10-30 | Schaeffler Technologies Gmbh & Co. Kg | Thrust washer including wet friction material with resin coated surface |
| JP2021008376A (en) * | 2019-07-01 | 2021-01-28 | イビデン株式会社 | Graphite material and its manufacturing method |
-
1986
- 1986-07-15 JP JP16629486A patent/JPS6322888A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06229434A (en) * | 1993-01-29 | 1994-08-16 | Aisin Chem Co Ltd | Wet type friction material |
| WO2014176301A1 (en) * | 2013-04-25 | 2014-10-30 | Schaeffler Technologies Gmbh & Co. Kg | Thrust washer including wet friction material with resin coated surface |
| US9593713B2 (en) | 2013-04-25 | 2017-03-14 | Schaeffler Technologies AG & Co. KG | Thrust washer including wet friction material with resin coated surface |
| JP2021008376A (en) * | 2019-07-01 | 2021-01-28 | イビデン株式会社 | Graphite material and its manufacturing method |
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