JPS62283227A - Wet friction material for vehicle - Google Patents
Wet friction material for vehicleInfo
- Publication number
- JPS62283227A JPS62283227A JP12690986A JP12690986A JPS62283227A JP S62283227 A JPS62283227 A JP S62283227A JP 12690986 A JP12690986 A JP 12690986A JP 12690986 A JP12690986 A JP 12690986A JP S62283227 A JPS62283227 A JP S62283227A
- Authority
- JP
- Japan
- Prior art keywords
- friction
- pores
- friction material
- wet
- base
- 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 37
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000011148 porous material Substances 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 9
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 239000003607 modifier Substances 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 1
- 239000011152 fibreglass Substances 0.000 claims 1
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 abstract description 10
- 239000005011 phenolic resin Substances 0.000 abstract description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract description 7
- 229910052709 silver Inorganic materials 0.000 abstract description 7
- 239000004332 silver Substances 0.000 abstract description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- XNRABACJWNCNEQ-UHFFFAOYSA-N silver;azane;nitrate Chemical compound N.[Ag+].[O-][N+]([O-])=O XNRABACJWNCNEQ-UHFFFAOYSA-N 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 2
- 244000226021 Anacardium occidentale Species 0.000 abstract 1
- 235000020226 cashew nut Nutrition 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000011888 foil Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 150000002989 phenols Chemical class 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 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
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229930003836 cresol Natural products 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- PLKATZNSTYDYJW-UHFFFAOYSA-N azane silver Chemical compound N.[Ag] PLKATZNSTYDYJW-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- -1 linter pulp Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
［産業上の利用分野］
本発明は車両用湿式摩擦材に関する。本発明は例えば、
自動車の自動変速機内で潤滑油中に浸した状態で用いら
れる湿式車両用混式Ｉｇ原材に利用することができる。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a wet friction material for vehicles. The present invention includes, for example,
It can be used as a mixed Ig raw material for wet vehicles that is immersed in lubricating oil in automatic transmissions of automobiles.
［従来の技術］
従来より、自動車の自動変速機内で用いられる湿式車両
用湿式摩擦材は、車両用湿式ＦＪ擦材と潤滑油とを接触
させ、これにより摩擦熱の放熱がなされ冷却効果が大き
くされている。[Prior Art] Conventionally, wet friction materials for vehicles used in automatic transmissions of automobiles have brought the wet FJ friction material for vehicles into contact with lubricating oil, thereby dissipating frictional heat and achieving a large cooling effect. has been done.
さらに、冷却効果を増して車両用湿式Ｉ！ｉ！ｖＡ材の
耐久性を向上させるために、近時、車両用湿式摩擦材に
溝を形成したり、車両用湿式ＩＩ際材の一部をポーラス
にしたりして潤滑油との接触面積を大きくし、Ｉ！ｊ擦
熱の放熱効果を大きくしている。Furthermore, the cooling effect has been increased and wet type I for vehicles! i! In order to improve the durability of vA materials, recently, the contact area with lubricating oil has been increased by forming grooves in wet friction materials for vehicles and making some of the wet friction materials for vehicles porous. , I! j Increases the heat dissipation effect of friction heat.
ところで、放熱効果を増ずためには、重両用湿式Ｉｌ！
擦材自体が伝熱性を持つことが好ましい。しかしながら
車両用湿式１１ｊｆｆ材の基材は通常、リンターパルプ
、アスベスト、ポリアミド繊維、ガラス繊維などから形
成されているため、伝熱性が極めて悪い。By the way, in order to increase the heat dissipation effect, a dual-purpose wet type Il!
It is preferable that the friction material itself has heat conductivity. However, the base material of the wet type 11jff material for vehicles is usually made of linter pulp, asbestos, polyamide fiber, glass fiber, etc., and therefore has extremely poor heat conductivity.
そこで、基材中にグラファイト粉末を混入したり、ある
いは基材中に金属箔を混入させること（待間昭５７−４
３８５４号公報）が考えられている。Therefore, mixing graphite powder into the base material or mixing metal foil into the base material (Machima Sho 57-4
No. 3854) is being considered.
しかしながら、グラファイト粉末を混入する場合には、
車両用湿式摩擦材の摩擦係数が低下するため、車両用湿
式ＩＩ擦材の混入原料としては不適切である。又金属箔
を混入する場合には、グラファイト粉末のような摩擦係
数の低下という問題がないものの、基材と金属箔との比
重差が大きいため、抄紙時に金属箔が沈降するなどし、
そのため金属箔を基材中に均一に分散することが困難で
ある。However, when mixing graphite powder,
Since the friction coefficient of the wet friction material for vehicles decreases, it is unsuitable as a mixed raw material for wet type II friction materials for vehicles. In addition, when metal foil is mixed in, there is no problem of lowering the coefficient of friction as with graphite powder, but because of the large difference in specific gravity between the base material and the metal foil, the metal foil may settle during paper making.
Therefore, it is difficult to uniformly disperse the metal foil into the base material.
［発明が解決しようとする問題点］
本発明は上記した実情に鑑みなされたものであり、その
目的は、グラファイト粉末、金属箔を基材に混入するこ
となく、熱伝導性を向上させて耐久性を向上させ得る車
両用湿式摩擦材を提供するにある。[Problems to be Solved by the Invention] The present invention was made in view of the above-mentioned circumstances, and its purpose is to improve thermal conductivity and increase durability without mixing graphite powder or metal foil into the base material. An object of the present invention is to provide a wet friction material for a vehicle that can improve performance.
［問題点を解決するための手段］
本発明に係る車両用湿式摩擦材は、繊維を主体とする基
材と、摩擦調整剤と、基材及び摩ｗＸ調整剤を結合しこ
れらの境界部分に外気に連通する多数の気孔を形成する
結合剤とで構成され、少なくとも表面部の気孔を形成す
る壁面は、金属被１漠を具備することを特徴とする。[Means for Solving the Problems] The wet friction material for vehicles according to the present invention combines a base material mainly composed of fibers, a friction modifier, a base material and a friction wX modifier, and forms a material at the boundary between these. and a binder forming a large number of pores communicating with the outside air, and at least the wall surface forming the pores in the surface portion is characterized by having a metal coating.
基材の主体となる繊維は、無機質繊維、有機質繊維とす
ることができ、例えば、リンターパルプ、アスベスト、
ポリアミド！１Ｍ、ガラス繊維の少なくとも１種で形成
することができる。繊維の長さは１〜１舒τすることが
でき、繊維の平均径は０゜０１〜５０μｍ程度とするこ
とができる。The main fibers of the base material can be inorganic fibers or organic fibers, such as linter pulp, asbestos,
polyamide! It can be made of at least one of 1M and glass fibers. The length of the fibers can be 1 to 1 tau, and the average diameter of the fibers can be about 0.01 to 50 μm.
摩擦調整剤とは、ｆＦＪｍ係数を向上したり安定化させ
たりするためのものであり、具体的には、カシュダスト
、アルミナファイバ、カーボンファイバ、ラバーダス１
〜、グラフフィト粉末などを用いることができる。Friction modifiers are used to improve or stabilize the fFJm coefficient, and specifically include cash dust, alumina fiber, carbon fiber, and rubber dust 1.
~, graphite powder, etc. can be used.
結合剤は、基材および＊ｍ調整材を結合するものである
。基材およびａ！凍調整材が結合剤により結合されると
、基材と摩ｌＩＫ調整材との間に、外気に連通ずる気孔
が形成される。気孔は、通常、車両用湿式ｙＪ家材の表
面部および内部の全体に形成されている。気孔の大きさ
〜れ一般に０．１〜３０μｍである。結合剤としては、
フェノール系Ｉｓ４脂、ブチラール系樹脂、フェノキシ
系樹脂、エポキシ系樹脂などを用いることができる。フ
ェノール系樹脂とは、例えばフェノール、クレゾールな
どフェノール類の１種又はそれ以上とホルムアルデヒド
又はその発生源となる化合物とより縮合させて（専られ
るＩｌｌをいう。又カシュナットオイル、ポリビニール
ブチラール、植物油、メラミン、エポキシ化合物などで
変性した変性フェノール樹脂を用いてもよい。なお、耐
熱性の点では無変性フェノール樹脂がよい。The binder binds the base material and the *m adjustment material. Base material and a! When the freeze-adjusting material is bonded with the binder, pores communicating with the outside air are formed between the base material and the freeze-adjusting material. Pores are normally formed all over the surface and inside of wet type YJ housing materials for vehicles. The size of the pores is generally 0.1 to 30 μm. As a binder,
Phenol-based Is4 resin, butyral-based resin, phenoxy-based resin, epoxy-based resin, etc. can be used. Phenolic resin refers to resins produced by condensing one or more phenols such as phenol and cresol with formaldehyde or a compound that is a source of formaldehyde. It also refers to resins produced by condensing one or more phenols such as phenol and cresol with formaldehyde or a compound that is a source of formaldehyde. A modified phenol resin modified with , melamine, an epoxy compound, etc. may also be used.In addition, an unmodified phenol resin is preferable in terms of heat resistance.
本発明では、気孔を形成する壁面に金属被膜が形成され
ている。金属被膜は、伝熱性のよい金属の被膜であるこ
とが好ましい。金属被膜は、ＣＵ２＋、ＣＵ＋％ ＡＱ
”、Ｓｎ’ ＋、Ｓｎ４＋、Ｐｌ）２＋、Ｐｂ４＋等の
金属イオンを含有する溶液を気孔内に含侵させる含侵工
程と、ヒドラジン、ヒドロキシルアミン、ヒドロキノン
、ホルムアルデヒド等の還元剤を含６する溶液を該気孔
内に含侵させ、金属イオンを還元して該気孔内で金属を
析出させる析出工程と、を順に実施することにより形成
することができる。含侵工程及び析出工程は、車両用湿
式摩擦材を、金属イオンを含有する溶液、還元剤を含有
する溶液に浸責することにより行いうる。金属被膜は、
その合金組成により熱伝導率が変化する場合には、その
合金組成を調整すれば、車輌用摩ｍ材の熱伝導性を調整
することができる。In the present invention, a metal coating is formed on the wall surface forming the pores. The metal coating is preferably a metal coating with good heat conductivity. Metal coating is CU2+, CU+% AQ
an impregnation step in which the pores are impregnated with a solution containing metal ions such as ", Sn'+, Sn4+, Pl)2+, Pb4+, and a solution containing a reducing agent such as hydrazine, hydroxylamine, hydroquinone, formaldehyde, etc. It can be formed by sequentially performing a precipitation step of impregnating into the pores and reducing metal ions to precipitate the metal in the pores.The impregnation step and the precipitation step are performed using a wet method for vehicles. This can be done by immersing the friction material in a solution containing metal ions or a solution containing a reducing agent.
If the thermal conductivity changes depending on the alloy composition, the thermal conductivity of the vehicle friction material can be adjusted by adjusting the alloy composition.
金属被膜の厚みは基材の種類、金属被膜の金属の種類な
どによって適宜変更するが、一般的には、０．１〜１０
μｍ程度とすることができる。The thickness of the metal coating varies depending on the type of base material, the type of metal in the metal coating, etc., but generally it is 0.1 to 10.
It can be about μm.
なお本発明に係る車両用湿式摩擦材には、基材、ＩＩ！
擦７１４整剤、結合剤の他に充填剤を含有させてもよい
。充填剤としては、例えば、けいそう土、粘、土などが
めげられる。The wet friction material for vehicles according to the present invention includes a base material, II!
A filler may be included in addition to the 714 conditioner and binder. Examples of the filler include diatomaceous earth, clay, and earth.
本発明に係る車両用湿式摩擦材の組成ａｉ！囲は、全組
成を１００１１部とした場合、繊維を主体とする基材の
配合量は、５０〜７０部とすることが好ましい。又結合
剤の配合割合は５〜２０部程度が好ましく、Ｉ！！擦調
整剤の配合割合は、１０〜５０部程度が好ましい。Composition ai of the wet friction material for vehicles according to the present invention! When the total composition is 10011 parts, the amount of the base material mainly composed of fibers is preferably 50 to 70 parts. The blending ratio of the binder is preferably about 5 to 20 parts, and I! ! The blending ratio of the friction modifier is preferably about 10 to 50 parts.
［発明の効果］
本発明に係る車両用湿式摩擦材は、少なくとも表面部の
気孔を形成する壁面は、全屈被膜を具備することを特徴
とげる。従って、車両用湿式摩擦材は伝熱性に優れてい
る。よって相手部材と継合する回数が増しても、摩擦係
数が安定化し、従って車両用湿式ＩＩ擦材の耐久性を向
上させ得る。[Effects of the Invention] The wet friction material for a vehicle according to the present invention is characterized in that at least the wall surface forming the pores in the surface portion is provided with a fully curved coating. Therefore, the wet friction material for vehicles has excellent heat conductivity. Therefore, even if the number of times of joining with a mating member increases, the coefficient of friction is stabilized, and therefore the durability of the wet type II friction material for vehicles can be improved.
［実施例］
本発明に係る車両用湿式摩擦材の１実施例を以下述べる
。本実施例は自動車の自動変速機内で用いられる湿式車
両用湿式ＦＪ原材に適用した場合である。[Example] An example of the wet friction material for vehicles according to the present invention will be described below. This example is a case where the material is applied to a wet FJ raw material for a wet vehicle used in an automatic transmission of an automobile.
まず、重量％で、基材となるリンターパルプ６０％、摩
擦調整剤としてカシュダスト１０％、ケイソウ土３０％
とを加え、これらを水に分散し分散工程を行なった。そ
の後長網式抄紙機により抄紙工程を行い、次に所定形状
に打法いた。First, by weight, 60% linter pulp as a base material, 10% kash dust as a friction modifier, and 30% diatomaceous earth.
were added and dispersed in water to carry out a dispersion process. Thereafter, a paper making process was performed using a fourdrinier paper machine, and then the paper was punched into a predetermined shape.
その後充分に水洗し、乾燥後、結合剤としてのフェノー
ル樹脂（レゾールタイプストレートフェノールレジン）
を含侵せしめ、加熱し、加熱によりフェノール樹脂を硬
化させ、基材および摩擦調整材を結合し、この結果６０
％程度の気孔をもつ車両用湿式１！ｌＪ！ｔｆｆｉ材が
形成された。After that, wash thoroughly with water, dry, and use phenolic resin as a binder (resol type straight phenol resin).
The phenolic resin is impregnated with the resin and heated, and the phenolic resin is cured by heating to bond the base material and the friction modifier, resulting in a 60%
% wet type for vehicles with pores 1! lJ! A tffi material was formed.
そして、上記のように形成した車両用湿式摩擦材を硝酸
銀アンモニア溶液に１０分間浸貴し、硝酸銀アンモニア
溶液を気孔に含侵させた。５ｒ１酸銀アンモニア溶液（
硝！２銀溶液に過剰のアンモニア溶液を加えたもの）は
、１叉の水に対して硝酸銀１７０Ｇ（１モル）を溶かし
た後、沈澱が再度溶けるまで濃アンモニア水を加ねえた
ものをもらいた。硝酸銀アンモニア溶液のＰＨは８〜１
０程度である。Then, the wet friction material for a vehicle formed as described above was soaked in a silver nitrate ammonia solution for 10 minutes to impregnate the pores with the silver nitrate ammonia solution. 5r1 silver ammonia solution (
Nitsu! 2 silver solution with excess ammonia solution) was obtained by dissolving 170 G (1 mole) of silver nitrate in one portion of water, and then adding concentrated ammonia water until the precipitate was dissolved again. The pH of silver nitrate ammonia solution is 8-1
It is about 0.
次に、還元剤としてのヒドロキノン溶液に車両用湿式Ｉ
！Ｊ擦材を浸責させ、ヒドロキノン溶液を気孔内に含侵
させ、これにより気孔内で銀を析出させ、銀被膜を形成
した。ヒドロキノン溶液は１文の水にヒドロキノン１１
０ｇ（１モル）を溶かした溶液をもちいた。Next, wet vehicle I
! The J rubbing material was soaked to impregnate the hydroquinone solution into the pores, thereby precipitating silver within the pores to form a silver coating. Hydroquinone solution is 1 part of hydroquinone in 1 part of water.
A solution containing 0 g (1 mol) was used.
第１図は実施例に係る車両用湿式摩擦材の平面図であり
、第２図は第１図のＩＩ−ＩＩ線に沿う断面図であり、
第３図は第２図の要部を拡大して示す拡大断面図である
。FIG. 1 is a plan view of a wet friction material for a vehicle according to an example, and FIG. 2 is a cross-sectional view taken along line II-II in FIG.
FIG. 3 is an enlarged cross-sectional view showing the main part of FIG. 2 in an enlarged manner.
上記図面において、１は車両用湿式摩擦材、２は芯金で
鋼板製であり、１０は空孔、１１は銀被膜、をそれぞれ
示す。In the above drawings, 1 is a wet friction material for a vehicle, 2 is a metal core made of a steel plate, 10 is a hole, and 11 is a silver coating.
［評１ＩＩｉ１
上記実施例と同一の組成、同一の工程で比較例の車両用
湿式Ｉ！Ｊ隙材を形成した。但し、比較例の車両用湿式
摩擦材は、銀被膜を形成していない。[Review 1IIi1 Wet type I for vehicles as a comparative example with the same composition and the same process as the above example! A J gap material was formed. However, the vehicle wet friction material of the comparative example does not have a silver coating formed thereon.
そして実施例に係る車両用湿式Ｉ！！擦材と、比較例に
係る車両用湿式摩擦材とをＳＡＥ＃２試験機に組込み、
高負荷耐久試験を行った。この耐久試験では、回転数３
６００ｒｐｍ、単位面積あたりの吸収エネルギー４０ｃ
ａ ｌ ７ｃｍ２の条件下で行った。そして、摩擦係数
と継合回数との関係を第４図に示す。第４図のｍ軸は肋
１！１１１係数を示し、第４図の横軸は継合回数を示す
。And wet type I for vehicles according to the embodiment! ! Incorporating the friction material and the vehicle wet friction material according to the comparative example into the SAE #2 test machine,
A high load durability test was conducted. In this durability test, the rotation speed was 3
600 rpm, absorbed energy per unit area 40c
The test was carried out under conditions of a l 7 cm2. FIG. 4 shows the relationship between the friction coefficient and the number of joints. The m-axis in FIG. 4 shows the rib 1!111 coefficient, and the horizontal axis in FIG. 4 shows the number of joints.
第４図の実線へに示すように、実施例に係る車両用湿式
摩擦材は、伝熱性が向上しているため、１００００回継
合後６摩欺係数は安定していた。As shown by the solid line in FIG. 4, the vehicle wet friction material according to the example had improved heat conductivity, so the friction coefficient of 6 was stable after 10,000 joints.
これに対して比較例に係る車両用湿式摩擦材は、第４図
の点ＭＳに示ずように、５０００回継合後２ａｍ面の熱
劣化により摩擦係数が次第に低下しはじめた。On the other hand, in the vehicle wet friction material according to the comparative example, as shown at point MS in FIG. 4, after 5000 times of joining, the friction coefficient began to gradually decrease due to thermal deterioration of the 2 am surface.
このように摩擦係数の安定化といった効果を有するため
、実施例に係る車両用湿式ｙＪ擦材は、耐久性に浸れて
いることがわかる。Since it has the effect of stabilizing the coefficient of friction as described above, it can be seen that the wet type yJ friction material for vehicles according to the example is highly durable.
図面は本発明の１実施例を示し、第１図は実施例に係る
車両用湿式摩擦材の平面図であり、第２図は第１図のＩ
Ｆ−ｆｆ線に沿う断面図であり、第３図は第２図の要部
を拡大して示す拡大断面図であり、第４図は継合回数と
動Ｉ！Ｊ擦係数との関係ヲ示すグラフである。
図中、１は車両用湿式ｓ原材、２は芯金、１０は空孔、
１１は銀被膜をそれぞれ示す。
特許出願人 トヨタ自動巾株式会社
代理人 弁理士 大川 定
向 弁理士 丸山明夫
第１図
第２図
第３図The drawings show one embodiment of the present invention, FIG. 1 is a plan view of a wet friction material for a vehicle according to the embodiment, and FIG.
Fig. 3 is an enlarged sectional view showing the main part of Fig. 2, and Fig. 4 shows the number of joints and the dynamic I! It is a graph showing the relationship with the J friction coefficient. In the figure, 1 is a wet S raw material for vehicles, 2 is a core metal, 10 is a hole,
11 each shows a silver coating. Patent Applicant: Toyota Automatic Wipes Co., Ltd. Agent Patent Attorney: Sadamuko Okawa Patent Attorney: Akio Maruyama Figure 1 Figure 2 Figure 3
Claims (4)
及び該摩擦調整剤を結合しこれらの境界部分に外気に連
通する気孔を形成する結合剤と、で構成され、 少なくとも表面部の気孔を形成する壁面は、金属被膜を
具備することを特徴とする車両用摩擦材。(1) Comprised of a base material mainly composed of fibers, a friction modifier, and a binder that binds the base material and the friction modifier to form pores communicating with the outside air at the boundary portion thereof, and at least A friction material for a vehicle, characterized in that a wall surface forming pores in a surface portion is provided with a metal coating.
に含侵させる工程と、還元剤を含有する溶液を該気孔内
に含侵させ、金属イオンを還元して該気孔内で金属を析
出させる工程と、を順に実施することにより形成される
特許請求の範囲第１項記載の車両用湿式摩擦材。(2) The metal coating is made by a process of impregnating the pores with a solution containing metal ions, and impregnating the pores with a solution containing a reducing agent to reduce the metal ions and convert the metal in the pores. The wet friction material for a vehicle according to claim 1, which is formed by sequentially performing the step of depositing.
許請求の範囲第１項記載の車両用湿式摩擦材。(3) The wet friction material for a vehicle according to claim 1, wherein the metal coating has a thickness of about 0.1 to 10 μm.
繊維、アスベストの少なくとも１種で形成され、その長
さは１〜１０ｍｍであり、その平均径は０．０１〜５０
μｍである特許請求の範囲第１項記載の車両用湿式摩擦
材。(4) The fibers are made of at least one of linter pulp, polyamide fiber glass fiber, and asbestos, and have a length of 1 to 10 mm and an average diameter of 0.01 to 50 mm.
The wet friction material for a vehicle according to claim 1, which has a diameter of μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12690986A JPS62283227A (en) | 1986-05-30 | 1986-05-30 | Wet friction material for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12690986A JPS62283227A (en) | 1986-05-30 | 1986-05-30 | Wet friction material for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62283227A true JPS62283227A (en) | 1987-12-09 |
Family
ID=14946893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12690986A Pending JPS62283227A (en) | 1986-05-30 | 1986-05-30 | Wet friction material for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62283227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113642A (en) * | 2005-10-19 | 2007-05-10 | Advics:Kk | Friction couple and friction material |
-
1986
- 1986-05-30 JP JP12690986A patent/JPS62283227A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113642A (en) * | 2005-10-19 | 2007-05-10 | Advics:Kk | Friction couple and friction material |
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