JPS59208240A - Wet friction material - Google Patents
Wet friction materialInfo
- Publication number
- JPS59208240A JPS59208240A JP8117883A JP8117883A JPS59208240A JP S59208240 A JPS59208240 A JP S59208240A JP 8117883 A JP8117883 A JP 8117883A JP 8117883 A JP8117883 A JP 8117883A JP S59208240 A JPS59208240 A JP S59208240A
- Authority
- JP
- Japan
- Prior art keywords
- friction
- friction material
- paper
- weight
- synthetic 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.)
- Granted
Links
- 239000002783 friction material Substances 0.000 title abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 12
- 239000000057 synthetic resin Substances 0.000 claims abstract description 12
- 239000002557 mineral fiber Substances 0.000 claims abstract description 9
- 235000013162 Cocos nucifera Nutrition 0.000 claims abstract description 8
- 244000060011 Cocos nucifera Species 0.000 claims abstract description 8
- 239000004952 Polyamide Substances 0.000 claims abstract description 7
- 229920002647 polyamide Polymers 0.000 claims abstract description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 9
- 150000003949 imides Chemical class 0.000 claims description 5
- 239000010903 husk Substances 0.000 abstract 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052981 lead sulfide Inorganic materials 0.000 description 1
- 229940056932 lead sulfide Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
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】
本発明は、例えば湿式摩擦クラッチにおけるクラッチ板
のライニングに用いられる湿式摩擦材に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wet friction material used, for example, in the lining of a clutch plate in a wet friction clutch.
上記湿式摩擦クラッチとして、流体式トルクコンバータ
の内部に設けられ、クラッチ領域でその入力側と出力側
間の滑りを防止して動車的なトルク伝達を行うべく、入
力側と出力側とを機械的に連結するための直結クラッチ
が知られているが、このような直結クラッチを用いたト
ルクコンノく一タにおいては、その直結クラッチの作動
時それを介してエンジンのトルク変動が直接出力側に伝
達され、車体振動や騒音の原因となるため直結クラッチ
の作動範囲をエンジンのトルク変動が小さくなる車速の
比較的高速域に限定している。The above-mentioned wet friction clutch is installed inside the hydraulic torque converter, and is used to mechanically connect the input side and output side in order to prevent slippage between the input side and output side in the clutch area and to transmit torque in a vehicular manner. Direct-coupled clutches are known, but in torque converters using such direct-coupled clutches, when the direct-coupled clutch is activated, engine torque fluctuations are directly transmitted to the output side through it. Since this causes vehicle body vibration and noise, the operating range of the direct clutch is limited to a relatively high vehicle speed range where engine torque fluctuations are small.
そこで、車速の低速域においても、直結クラッチを介し
て円滑なトルク伝達を行うべく直結クラツチの接続力を
制御して、比較的高速域においては直結状態で、一方低
速域においては滑り状態で直結クラッチを作動させるよ
うにし、低速域におけるエンジンのトルク変動を上記滑
りにより吸収するようにすることが考えられる。Therefore, the connecting force of the direct-coupled clutch is controlled to ensure smooth torque transmission through the direct-coupled clutch even at low vehicle speeds, so that it remains directly coupled at relatively high speeds, while in a slipping state at low speeds. It is conceivable to operate the clutch so that engine torque fluctuations in the low speed range are absorbed by the slippage.
しかしながら、高温となりやすいトルクコンバータの内
部において直結クラッチを滑り状態で使用することは、
極めて過酷な条件を直結クラッチに強いることになり、
特にクラッチ板のライニング、即ち湿式摩擦材の疲弊が
激しくなる。そのため湿式摩擦材には優れた耐熱性およ
び耐摩耗性が要求されることは勿論のこと、滑り状態で
直結クラッチを作動させるには正確な接続力の制御も必
要となるため以前にも増して安定した摩擦係数を有する
ことが要求される。However, using a direct coupling clutch in a slipping state inside the torque converter, which is prone to high temperatures,
The direct coupling clutch will be subjected to extremely harsh conditions,
In particular, the lining of the clutch plate, that is, the wet friction material, becomes severely fatigued. For this reason, not only are wet friction materials required to have excellent heat resistance and wear resistance, but also accurate control of connection force is required to operate a direct clutch in a slipping state, which is more important than ever before. It is required to have a stable coefficient of friction.
従来、上記湿式摩擦材として抄造タイプのものが知られ
ており、その摩擦材は、綿繊維、パルプ粉末（ケイソウ
土、タルク、硫酸バリウム等）と金属化合物（酸化鉄、
二硫化モリブデン、硫化鉛等）を配合し抄造して紙を作
り、その紙に熱硬化性合成樹脂を含浸し乾燥した後、そ
の樹脂を約２０θ℃で加熱硬化させることにより製造さ
れている。Conventionally, paper-made friction materials have been known as the above-mentioned wet friction materials, and these friction materials are made of cotton fibers, pulp powder (diatomaceous earth, talc, barium sulfate, etc.) and metal compounds (iron oxide, barium sulfate, etc.).
It is manufactured by blending molybdenum disulfide, lead sulfide, etc., making paper, impregnating the paper with a thermosetting synthetic resin, drying it, and then heating and curing the resin at about 20θ°C.
しかしながら、上記摩擦材は、その主成分である繊維の
耐熱性が低く、また前記のような直結クラッチの滑り状
態という過酷な使用条件の下では摩耗が激しくなり、そ
の上摩擦係数が不安定となるといった欠点を有し、前記
Ｒ要求を満足することができない。However, the heat resistance of the fibers, which are the main components of the friction materials mentioned above, is low, and under the harsh conditions of use such as the above-mentioned slipping state of the direct coupling clutch, the friction materials suffer from severe wear, and furthermore, the coefficient of friction becomes unstable. However, it has the disadvantage that the above-mentioned R requirement cannot be satisfied.
本発明は上記従来の不具合を解消し得る前記湿式摩擦材
を提供することを目的とし、１０〜５０重量％のポリア
ミド・イミドＲ維、２０〜６０重量裂の鉱物繊維および
５〜３０重量％のヤシ殻活性炭を用いて抄造された複合
繊維紙と、その複合繊維紙に、それに対し２０〜５０重
量−の割合で含浸される熱硬化性合成樹脂とより含浸紙
を構成し、その含浸紙を無加圧状態下で加熱して前記合
成樹脂を硬化させたものである。The object of the present invention is to provide the above-mentioned wet friction material capable of solving the above-mentioned conventional problems, and includes 10 to 50% by weight of polyamide/imide R fiber, 20 to 60% by weight of mineral fiber, and 5 to 30% by weight of mineral fiber. Impregnated paper is composed of a composite fiber paper made using coconut shell activated carbon and a thermosetting synthetic resin impregnated into the composite fiber paper at a ratio of 20 to 50% by weight. The synthetic resin is cured by heating under no pressure.
上記ポリアミド・イミド繊維は２５０℃程度の高温下に
おいても不溶不融状態を保持し得る優れた耐熱性を有す
るもので、摩擦材の耐熱性を向上させると共に強度維持
を図るために必要である。The polyamide/imide fibers have excellent heat resistance and can maintain an insoluble and infusible state even at high temperatures of about 250°C, and are necessary to improve the heat resistance of friction materials and maintain their strength.
上記繊維の割合を１０〜５０Ｘ量チと設定することによ
って複合繊維紙の抄造が可能となるもので、上記割合が
１０ｉ量チを下回ると抄造が困難となり、一方５０重量
矛を上回ると摩擦材の摩擦係数が不安定となる。Composite fiber paper can be made by setting the ratio of the above fibers to 10 to 50 times the weight.If the above ratio is less than 10 times the weight, paper making becomes difficult, while if it exceeds 50 times the weight, it becomes possible to make composite fiber paper. The friction coefficient becomes unstable.
鉱物繊維は摩擦材を繊維強化すると共にその摩擦係数を
調節する機能を有するもので、この種繊維としては、チ
タン酸カリウム繊維、ガラス繊維、金属繊維、グラスウ
ール、セラミック繊維、Ｐ、ＭＪ。Mineral fibers have the function of reinforcing the friction material and adjusting its friction coefficient. Examples of this type of fiber include potassium titanate fiber, glass fiber, metal fiber, glass wool, ceramic fiber, P, and MJ.
（ｐｒｏｃｅｚｓｅｄ Ｍｉｎ、ｔｒａｌ Ｆｉｂｅｒ
）等が該当する。(processed Min, tral Fiber
) etc. are applicable.
なお、石綿も鉱物繊維に包含されるが、公害防止の観点
からは好ましい材料とはいえない。Although asbestos is also included in mineral fibers, it cannot be said to be a preferable material from the viewpoint of pollution prevention.
上記繊維の割合を２０〜６０重量％と設定することによ
り前記機能を十分に発揮させることができるもので、上
記割合が２０重量−を下回ると摩擦係数の円節を行うこ
とができず、−万６０重量％を上回ると摩擦係数が下が
りすぎるという不具合かある。By setting the ratio of the above fibers to 20 to 60% by weight, the above function can be fully exhibited; if the ratio is less than 20% by weight, the friction coefficient cannot be determined, and - If it exceeds 60,000% by weight, there may be a problem that the coefficient of friction decreases too much.
ヤシ殻活性炭は多孔性であり、その内部にオイルを保持
することによって摩擦面を冷却することができるので、
摩擦材の耐熱性を向上させると共に摩擦係数を安定化さ
せるために必要である。Coconut shell activated carbon is porous and can cool the friction surface by retaining oil inside it.
It is necessary to improve the heat resistance of the friction material and to stabilize the coefficient of friction.
ヤシ殻活性炭の割合を５〜３０重量％と設定することに
より前記要求を満足することができるもので、上記割合
が５重量饅を下回るとオイルの保持量が少なすぎて摩擦
面の冷却効果が得られず、一方３０重ｆｉｔ％を上回る
とオイルの保持量が多スぎて摩擦係数が下がるという不
具合がある。The above requirements can be met by setting the proportion of coconut shell activated carbon at 5 to 30% by weight; if the above proportion is less than 5% by weight, the amount of oil retained is too small and the cooling effect on the friction surface is impaired. On the other hand, if it exceeds 30 weight fit%, there is a problem that the amount of oil retained is too large and the coefficient of friction decreases.
熱硬化性合成樹脂は複合ＲｐＡ紙を構成する前記繊維等
のバインダとして機能し、この種樹脂としてはフェノー
ル樹脂、エポキシ樹脂、尿素樹脂、メラミン樹脂等が該
当する。The thermosetting synthetic resin functions as a binder for the fibers and the like constituting the composite RpA paper, and examples of this type of resin include phenol resin, epoxy resin, urea resin, and melamine resin.
上記合成樹脂の割合を複合繊維紙に対し２０〜５０重量
饅と設定することによって、良好なバインダ機能を発揮
させることができるもので、上記割合が２０重量％を下
回るとバインダ効果がなく、一方５０重量％を上回゛る
と摩擦材の表面が鏡面化″して摩擦係数が下がるという
不具合がある。By setting the proportion of the synthetic resin to 20 to 50% by weight relative to the composite fiber paper, a good binder function can be exhibited.If the proportion is less than 20% by weight, there is no binder effect; If it exceeds 50% by weight, the surface of the friction material becomes mirror-like, resulting in a decrease in the coefficient of friction.
上記各材料を配合して得られる含浸紙を無加圧状態下で
加熱して上記合成樹脂を硬化させることは、摩擦材の気
孔率を一定にして摩擦係数の安定化を図るために必要で
ある。It is necessary to cure the synthetic resin by heating the impregnated paper obtained by blending the above materials under non-pressurized conditions in order to keep the porosity of the friction material constant and stabilize the coefficient of friction. be.
以下、本発明摩擦材の製造例について説明する。Examples of manufacturing the friction material of the present invention will be described below.
ポリアミド・イミド繊維・・・・・・・・・・・・４０
重量％鉱物繊維としてｐ、Ｍ、Ｆ、・・・・・・・・・
・・・４５ 〃ヤシ殻活性炭 ・・・・・・・・・・
・・１５ Ｎを、水中に懸濁させてスラリ状とし、これ
を抄造装置によって抄造した後乾燥し、厚さＩＩＩＩの
複合繊維紙を得た。次いでこの紙に、その重量に対して
４０％のフェノール樹脂を含浸させて自然乾燥し、含浸
紙を得た。Polyamide/imide fiber・・・・・・・・・40
p, M, F as weight% mineral fiber...
・・・45 〃Coconut shell activated carbon ・・・・・・・・・・・・
...15N was suspended in water to form a slurry, which was made into a paper using a paper making device and then dried to obtain composite fiber paper with a thickness of III. Next, this paper was impregnated with phenol resin in an amount of 40% by weight and air-dried to obtain impregnated paper.
その後含浸紙を２００〜２３０℃の炉中に入れて１０分
間無加圧状態下で加熱し、フェノール樹脂を硬化させて
摩擦材を製造した。Thereafter, the impregnated paper was placed in a furnace at 200 to 230°C and heated under no pressure for 10 minutes to harden the phenolic resin and produce a friction material.
上記摩擦材の両面を研摩した後環状に打抜いてテストピ
ースを作成した。After polishing both sides of the friction material, a test piece was prepared by punching it into an annular shape.
また比較テストのために、下記材料を用いて前記と同様
の方法で従来の摩擦材を製造して同様のテストピースを
作成した。な訃、フェノール樹脂の割合は前記と同様で
ある。In addition, for a comparative test, a conventional friction material was manufactured using the following materials in the same manner as described above, and a similar test piece was created. The proportion of phenol resin is the same as above.
綿 繊 維・・・・・・・・・５０重量％酸 化
鉄・・・・・・・・・２０ 〃ケイソウ土・・・
・・・・・・３０ Ｎ本発明摩擦材Ｌ１ と従来の摩
擦材り、を、それ述のようにトルクコンバータ内に設げ
て作動テストを行った。Cotton fiber...50% by weight Iron oxide...20 Diatomaceous earth...
...30N The friction material L1 of the present invention and the conventional friction material L1 were installed in a torque converter as described above, and an operation test was conducted.
第２図はスリップトルク４ｋｇ・ｍ、スリップ回転数７
５ Ｏｒｐｍ、の条件で連続スリップさせて摩耗量につ
いて比較したものである。この時のオイル温度は１４０
℃であった。Figure 2 shows a slip torque of 4 kg・m and a slip rotation speed of 7.
The amount of wear was compared by continuous slipping under the conditions of 5 Orpm. The oil temperature at this time was 140.
It was ℃.
第２図から明らかなよう゛に本発明摩擦材Ｌ１は長時間
経過してもほとんど摩耗量が増加しないが、従来の摩擦
材ハは時間の経過と共に急激に摩耗量が増大するもので
ある。As is clear from FIG. 2, the amount of wear of the friction material L1 of the present invention hardly increases over a long period of time, but the amount of wear of the conventional friction material L1 increases rapidly over time.
第３．第４図はそれぞれスリップトルクおよびスリップ
回転数を種々変化させた場合の摩耗量および摩擦係数の
変化を示すもので、この時のオイル温度は１４０〜２０
０℃であった。図中、スリップトルクＴおよびスリップ
回転数Ｎは下式に従ってＰＶ値に変換されている。Third. Figure 4 shows the changes in wear amount and friction coefficient when the slip torque and slip rotation speed are varied, and the oil temperature at this time is between 140 and 20.
It was 0°C. In the figure, slip torque T and slip rotation speed N are converted into PV values according to the following formula.
Ｔ、Ｎ
ＰＶ＝−
０００
第３．第４図から明らかなように、本発明摩擦材り、は
使用条件が過酷になっても摩耗量の増加は極めて緩慢で
あり、また摩擦係数も略一定で非常に安定しているが、
従来の摩擦材り、は同一の使用条件下において摩耗量が
急激に増加し、また摩擦係数が低下するものである。T, N PV=-000 3rd. As is clear from FIG. 4, the friction material of the present invention exhibits a very slow increase in wear even when the usage conditions become severe, and the friction coefficient is approximately constant and very stable.
With conventional friction materials, the amount of wear increases rapidly and the coefficient of friction decreases under the same usage conditions.
以上のように本発明によれば、前記割合のポリアミド・
イミド繊維、鉱物繊維、ヤシ殻活性炭および熱硬化性合
成樹脂を構成材料として、優秀な耐熱性、耐摩耗性およ
び摩擦係数の安定性を備えた湿式摩擦材を提供し得るも
のである。As described above, according to the present invention, polyamide of the above ratio
By using imide fibers, mineral fibers, coconut shell activated carbon, and thermosetting synthetic resin as constituent materials, it is possible to provide a wet friction material with excellent heat resistance, abrasion resistance, and stability of the coefficient of friction.
第１図は本発明湿式摩擦材を適用したクラッチ板の縦断
・側面図、第２．第３および第４図はそれぞれ本発明湿
式摩擦材と従来の湿式摩擦材との滑り時間に対する摩耗
量の変化、ＰＶ値に対する摩耗量の変化およびｐＶ値に
対する摩擦係数の変化を比較したグラフである。
ｄ・・・円板部、Ｌｌ ・・湿式摩擦材、Ｐ・・・クラ
ッチ板
特許出願人 不二化学工朶株式会社
に 本田技研工業株式会社
０よ 、Ｐオ＋、 落 合 −゛ 。FIG. 1 is a vertical cross-sectional and side view of a clutch plate to which the wet friction material of the present invention is applied, and FIG. 3 and 4 are graphs comparing the changes in the amount of wear with respect to the sliding time, the changes in the amount of wear with respect to the PV value, and the changes in the friction coefficient with respect to the pV value, respectively, between the wet friction material of the present invention and the conventional wet friction material. . d... Disc part, Ll... Wet type friction material, P... Clutch plate Patent applicant Fuji Kagaku Kogyo Co., Ltd., Honda Motor Co., Ltd. 0, P +, Ochiai -゛.
Claims (1)
０重量％の鉱物繊維および５〜３０重量−のヤシ殻活性
炭を用いて抄造された複合繊維紙と、該複合繊維紙に、
それに対し２０〜５０重量％の割合で含浸される熱硬化
性合成樹脂とより含浸紙を構成し、該含浸紙を無加圧状
態下で加熱して前記合成樹脂を硬化させてなる湿式賑擦
材。10-50% by weight polyamide/imide fiber, 20-6
A composite fiber paper made using 0% by weight of mineral fibers and 5 to 30% by weight of coconut shell activated carbon, and the composite fiber paper,
Wet rubbing is performed by forming an impregnated paper with a thermosetting synthetic resin impregnated at a ratio of 20 to 50% by weight, and heating the impregnated paper under no pressure to harden the synthetic resin. Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8117883A JPH0239655B2 (en) | 1983-05-10 | 1983-05-10 | SHITSUSHIKIMASATSUZAI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8117883A JPH0239655B2 (en) | 1983-05-10 | 1983-05-10 | SHITSUSHIKIMASATSUZAI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59208240A true JPS59208240A (en) | 1984-11-26 |
| JPH0239655B2 JPH0239655B2 (en) | 1990-09-06 |
Family
ID=13739208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8117883A Expired - Lifetime JPH0239655B2 (en) | 1983-05-10 | 1983-05-10 | SHITSUSHIKIMASATSUZAI |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0239655B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011516653A (en) * | 2008-04-01 | 2011-05-26 | ヴァレオ マトゥリオー ドゥ フリクション | Friction material for friction in liquid media, and associated apparatus and method |
-
1983
- 1983-05-10 JP JP8117883A patent/JPH0239655B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011516653A (en) * | 2008-04-01 | 2011-05-26 | ヴァレオ マトゥリオー ドゥ フリクション | Friction material for friction in liquid media, and associated apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0239655B2 (en) | 1990-09-06 |
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