JPS6361027A - Production of friction material - Google Patents
Production of friction materialInfo
- Publication number
- JPS6361027A JPS6361027A JP20520986A JP20520986A JPS6361027A JP S6361027 A JPS6361027 A JP S6361027A JP 20520986 A JP20520986 A JP 20520986A JP 20520986 A JP20520986 A JP 20520986A JP S6361027 A JPS6361027 A JP S6361027A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- binder
- friction material
- asbestos
- 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 28
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- 239000010425 asbestos Substances 0.000 claims abstract description 19
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000012298 atmosphere Substances 0.000 claims abstract description 6
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 abstract description 31
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003365 glass fiber Substances 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 2
- -1 etc.) Substances 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 description 9
- 239000005060 rubber Substances 0.000 description 9
- 239000000843 powder Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000003607 modifier Substances 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 244000226021 Anacardium occidentale Species 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 235000020226 cashew nut Nutrition 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- 229910001864 baryta Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007965 rubber solvent Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は自動車、車両、及び産業機械等のブレーキ、ク
ラッチ等の摺動部に使用する摩擦材即ち。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a friction material used in sliding parts of brakes, clutches, etc. of automobiles, vehicles, industrial machines, etc.
ブレーキライニング、クラッチフェーシング、ディスク
ブレーキパッド等として使用される摩擦材の製造方法に
関するものである。The present invention relates to a method of manufacturing friction materials used as brake linings, clutch facings, disc brake pads, etc.
従来、上記のような用途には基材として石綿を用いた摩
擦材が一般に使用されており、この摩擦材は、基材とし
ての石綿と摩擦材特性向上のための各種の添加剤及び結
合剤から成る混合物を圧縮成形して製造される。Conventionally, friction materials using asbestos as a base material have generally been used for the above-mentioned applications, and these friction materials consist of asbestos as a base material and various additives and binders to improve the properties of the friction material. It is manufactured by compression molding a mixture consisting of:
而して、摩擦材に要求される特性としては、特定の用途
に適すると共に各種の条件下において安定した摩擦係数
を有し１Ｍ摩擦材身と摩擦する相手である対面の摩耗が
少なく、且つ適当な強度を有することなどが挙げられる
。Therefore, the characteristics required of a friction material are that it is suitable for a specific use, has a stable coefficient of friction under various conditions, has little wear on the opposing surface that rubs against the 1M friction material body, and is suitable for a specific use. For example, it has strong strength.
従来公知の石綿を基材とする摩擦材はこれらの特性を満
足させているものの、石綿は近年その粉塵の人体への有
害性が指摘された結果、その使用は規制されつつあり１
石綿を使用しない摩擦材に対する要求が強くなってきて
いる。Conventionally known asbestos-based friction materials satisfy these characteristics, but as a result of recent indications that asbestos dust is harmful to the human body, its use is being regulated1.
There is an increasing demand for friction materials that do not use asbestos.
そこで１石綿を使用しない摩擦材について多数の提案が
なされているが、従来の非石綿系の摩擦材はシャダー性
、特に発進時のシャダー性の点で問題があり、その改良
が望まれている。Therefore, many proposals have been made for friction materials that do not use asbestos, but conventional non-asbestos friction materials have problems with shudder properties, especially in terms of shudder properties when starting, and improvements are desired. .
本発明の発明者等は、上述のような石綿を基材とする摩
擦材の問題点に鑑み１石綿を使用しないでシャダー性能
のすぐれた摩擦材を提供することを目的として鋭意研究
の結果１本発明を完成したもので、この発明の構成は、
非石綿系基材、結合剤、充填剤を主材と、成形後、２６
０〜３２０℃で熱処理することを主な特徴とするもので
ある。In view of the above-mentioned problems with asbestos-based friction materials, the inventors of the present invention have conducted intensive research with the aim of providing a friction material with excellent shudder performance without using asbestos. This invention has been completed, and the structure of this invention is as follows:
After molding, the main materials are a non-asbestos base material, a binder, and a filler.
The main feature is heat treatment at 0 to 320°C.
次に本発明方法について詳細に説明する。Next, the method of the present invention will be explained in detail.
本発明の発明者等は、基材として、石綿の代りに、ガラ
ス繊維、炭素繊維、フェノール繊維、アラミド繊維、セ
ラミックス繊維等の短繊維、長繊維、紡績糸やそれらに
開繊加工を施したものを用い、また、結合剤として、フ
ェノール、メラミン等の熱硬化性樹脂や合成ゴム、天然
ゴムを用い、更に、充填剤として、硫酸バリウム、炭酸
マグネシウム等を用いて、クラッチフェーシング等の所
望゛の形状に成形後、熱処理する際に、加熱温度を２６
０〜３２０℃にすることにより、シャダー性能の良好な
摩擦材を得られることを知得して本発明を完成したので
ある。The inventors of the present invention have used short fibers such as glass fibers, carbon fibers, phenol fibers, aramid fibers, and ceramic fibers, long fibers, and spun yarns as base materials instead of asbestos. In addition, thermosetting resins such as phenol and melamine, synthetic rubber, and natural rubber are used as binders, and barium sulfate, magnesium carbonate, etc. are used as fillers to form desired materials such as clutch facings. After molding into the shape, the heating temperature was set to 26
The present invention was completed based on the knowledge that a friction material with good shudder performance could be obtained by heating the temperature to 0 to 320°C.
また、摩擦特性向上のための各種の添加剤は通常、摩擦
調整剤と称されており、公知の原料が本発明においても
従来と同様に使用できる。Further, various additives for improving frictional properties are usually called friction modifiers, and known raw materials can be used in the present invention as well as in the past.
例えば、カシューダスト（カシュー穀油重合体の粉末）
、レジンダスト、ゴムダスト等の有機物の粉末、銅、黄
銅、亜鉛、鉛、錫、アルミニウム等の金属の粉末、バラ
イタ、炭酸カルシウム、水酸化カルシウム等の無機物の
粉末が使用できる。For example, cashew dust (cashew grain oil polymer powder)
, organic powders such as resin dust and rubber dust, metal powders such as copper, brass, zinc, lead, tin, and aluminum, and inorganic powders such as baryta, calcium carbonate, and calcium hydroxide.
本発明の要点は、非石綿系基材を用いることと、熱処理
時の温度を高くすることであり、こうすることにより、
摩擦性能特にシャダー性能が良好で石綿を基材にする場
合と比較して、遜色のない良好な摩擦材を得られる。The key points of the present invention are to use a non-asbestos base material and to increase the temperature during heat treatment.
It has good friction performance, especially shudder performance, and can be obtained as a friction material that is comparable to asbestos as a base material.
上記の各成分を特定の割合で混合して得た混合物を従来
公知の方法で成形し、成形後の熱処理工程において、２
６０〜３２０℃の温度で熱処理することにより摩擦材の
製品を得ることができる。A mixture obtained by mixing each of the above components in a specific ratio is molded by a conventionally known method, and in a heat treatment step after molding, 2
A friction material product can be obtained by heat treatment at a temperature of 60 to 320°C.
このような方法で得られる摩擦材は、これをクラッチフ
ェーシングに形成し、自動車のクラッチに用いると、シ
ャダー性が著しく向上する。When the friction material obtained by such a method is formed into a clutch facing and used in an automobile clutch, the shudder property is significantly improved.
従来の非石綿基材を用いた摩擦材の成形後の熱処理温度
は１例えば特開昭５６−１６７９３４号公報に開示され
ているように、 ２００〜２５０℃であり、この条件で
実際にクラッチフェーシングを試作したところ、望まし
いシャダー性は得られなかった。これは結合剤として用
いるフェノール樹脂等の熱硬化性樹脂の中まで加熱が行
届かず、樹脂が硬化不足となってシャダー性に問題を生
じていたものと推定される。Conventional heat treatment temperatures after molding friction materials using non-asbestos base materials are 200 to 250°C, as disclosed in JP-A No. 56-167934, and clutch facings are actually processed under these conditions. When we tried making a prototype, we were unable to obtain the desired shudder properties. It is presumed that this is because the heating did not reach into the thermosetting resin such as phenol resin used as a binder, resulting in insufficient curing of the resin and causing problems in shudder properties.
然しながら５本発明方法により得られる摩擦材は、熱処
理工程における加熱温度が２６０〜３２０℃であるため
、結合剤として使用する前記フェノール樹脂等の熱硬化
性樹脂が一様に硬化する結果、シャダー性能の良好な摩
擦材となるのである。尚、熱処理工程において、３２０
℃以上に加熱すると、結合剤の熱分解が進行して強度的
に弱くなり、潤滑性が不足してシャダー性が悪化する。However, in the friction material obtained by the method of the present invention, since the heating temperature in the heat treatment step is 260 to 320°C, the thermosetting resin such as the phenol resin used as the binder uniformly hardens, resulting in poor shudder performance. This makes it a good friction material. In addition, in the heat treatment process, 320
When heated above ℃, thermal decomposition of the binder progresses and the strength becomes weaker, resulting in insufficient lubricity and poor shudder properties.
而して１本発明における熱処理工程における加熱温度は
、最初から２６０〜３２０℃で加熱してもよいが、急激
な高温加熱に起因するフクレ、ヒビ割れ等の不具合を避
けるために、２００℃で３〜５時間加熱した後、２７０
℃で１２時間加熱するというように段階的に加熱しても
よい。要は最終的に２６０〜３２０℃に加熱することに
より、結合材を中まで一様に加熱して、結合剤が硬化不
足を生じないようにすればよいのである。Therefore, the heating temperature in the heat treatment step in the present invention may be 260 to 320°C from the beginning, but in order to avoid problems such as blistering and cracking caused by rapid high-temperature heating, the heating temperature is 200°C. After heating for 3-5 hours, 270
Heating may be carried out in stages, such as heating for 12 hours at °C. The point is that by finally heating the binder to 260 to 320°C, the binder can be uniformly heated to the inside so that the binder does not become insufficiently hardened.
更に、前記熱処理に際し、非酸化雰囲気中においての加
熱とその後の大気雰囲気中の加熱を組合せることにより
、上記の効果は一層高くなることが判明した。Furthermore, it has been found that the above effects can be further enhanced by combining heating in a non-oxidizing atmosphere and subsequent heating in the air during the heat treatment.
次に本発明の実施例について説明する。 Next, examples of the present invention will be described.
失影舅−上
直径６μ■のガラスフィラメント１００ＯＴＥＸを２８
回／２５０ｒｍのＳ撚りをかけたヤーン２本を４０回２
５０ｍのＺ撚りをかけ、真鍮線１本を入れて、ヤーン（
Ａ）を得た。28 pieces of glass filament 100OTEX with a diameter of 6μ
times/250rm S-twisted yarns 40 times2
Spread 50m of Z-twist, insert one brass wire, and twist the yarn (
A) was obtained.
このヤーン（Ａ）に、液状メラミン変性フェノール樹脂
を２０重量％含浸させ、１００℃で５分間乾燥後、ゴム
バインダー（Ｂ）を１００重量％付着させて、１００℃
で５分間乾燥させた。尚、上記ゴムバインダー（Ｂ）は
、ＳＢＲゴム１００重量部に硫黄、亜鉛華。This yarn (A) was impregnated with 20% by weight of liquid melamine-modified phenolic resin, dried at 100°C for 5 minutes, and then 100% by weight of the rubber binder (B) was attached to it.
and dried for 5 minutes. The above rubber binder (B) is made of 100 parts by weight of SBR rubber, sulfur and zinc white.
加硫促進剤を２６重量部、硫酸バリウム、炭酸マグネシ
ウム等の充填剤４０重量部、カーボンブラック。26 parts by weight of a vulcanization accelerator, 40 parts by weight of fillers such as barium sulfate and magnesium carbonate, and carbon black.
粉末フェノールレジン、ケブラーパルプ等の補強剤３２
重置部、摩擦調整剤２重量部を配合したものをゴム揮で
溶解したものを用いた。Reinforcing agents such as powdered phenol resin and Kevlar pulp 32
For the overlapping part, a mixture containing 2 parts by weight of a friction modifier was used, which was dissolved with rubber solvent.
上記のようにして得られたものを金型に入れ。Put the material obtained as above into a mold.
温度１８０℃、加圧力１００ｋｇ／ａＪで加熱加圧成形
して成形品（Ｃ）を得た。この時、加圧初期に４〜５回
のガス抜きを行ない、合計成形時間は７分であった。こ
の成形品を２６０℃で６時間熱処理した後。A molded article (C) was obtained by heat-pressing molding at a temperature of 180° C. and a pressure of 100 kg/aJ. At this time, degassing was performed 4 to 5 times in the initial stage of pressurization, and the total molding time was 7 minutes. After heat treating this molded article at 260°C for 6 hours.
表面を研磨して厚さ３．５ｍのクラッチフェーシングを
得た。The surface was polished to obtain a clutch facing with a thickness of 3.5 m.
失庭気−１
実施例１におけるヤーン（Ａ）とバインダー（Ｂ）を用
い、ヤーン（Ａ）にゴムバインダー（Ｂ）を１００重量
％付着させ、１００℃で５分間乾燥させた。Loss of Garden Air-1 Using the yarn (A) and binder (B) in Example 1, 100% by weight of the rubber binder (B) was attached to the yarn (A) and dried at 100° C. for 5 minutes.
上記のようにして得られたものを金型に入れ。Put the material obtained as above into a mold.
温度１８０℃、加圧力１００ｋｇ／ａＪで加熱加圧成形
して成形品（Ｄ）を得た。この時、実施例１と同様に、
加圧初期に４〜５回ガス抜きを行ない、合計成形時間は
７分であった。この成形品を１８０℃で５時間熱処理し
てから、更に、３２０℃で６時間熱処理した後１表面を
研磨して厚さ３．５＋ｍのクラッチフェーシングを得た
。A molded product (D) was obtained by heat-pressing molding at a temperature of 180° C. and a pressure of 100 kg/aJ. At this time, similarly to Example 1,
Degassing was performed 4 to 5 times at the initial stage of pressurization, and the total molding time was 7 minutes. This molded product was heat-treated at 180° C. for 5 hours, then further heat-treated at 320° C. for 6 hours, and one surface was polished to obtain a clutch facing with a thickness of 3.5+ m.
尖立外−影
実施例１の成形品（Ｃ）の表面を研磨して、２６０℃で
６時間熱処理を施し、厚さ３．５ｍｓのクラッチフェー
シングを得た。The surface of the molded product (C) of Example 1 was polished and heat treated at 260° C. for 6 hours to obtain a clutch facing with a thickness of 3.5 ms.
遺ＪＬＩ殊−」ユ
実施例１のヤーン（Ａ）に、液状メラミン変性フェノー
ルを２０重量％含浸させ、１００”Ｃで５分間乾燥後、
ゴムバインダー（Ｂ′）を１００重景置部着させて、１
００℃で５分間乾燥させた。尚、上記ゴムバインダー（
Ｂ′）はＳＢＲを２０重量部、実施例１の充填剤４２！
３量部、同じく補強剤３７重量部、摩擦調整剤１重量部
の配合のものをゴム揮に溶解して用いた。The yarn (A) of Example 1 was impregnated with 20% by weight of liquid melamine-modified phenol, and after drying at 100"C for 5 minutes,
Attach the rubber binder (B') to the 100-fold frame, and
It was dried at 00°C for 5 minutes. In addition, the above rubber binder (
B') contains 20 parts by weight of SBR and 42 parts by weight of the filler of Example 1!
3 parts by weight of the reinforcing agent and 1 part by weight of the friction modifier were dissolved in rubber powder and used.
上記のようにして得られたものを金型に入れ、温度１８
０℃、加圧力１００ｋｇ／ｃｄで加熱加圧成形して一成
形品（Ｃ″）を得た。この成形品を、窒素雰囲気中にお
いて２６０℃で６時間熱処理してから、更に大気雰囲気
中２６０℃で６時間熱処理後１表面を研磨して厚さ３．
５１のクラッチフェーシングを得た。The product obtained as above was put into a mold and the temperature was 18
A molded product (C″) was obtained by heating and pressure molding at 0°C and a pressure of 100 kg/cd.This molded product was heat treated at 260°C for 6 hours in a nitrogen atmosphere, and then further heated at 260°C in an air atmosphere. After heat treatment at ℃ for 6 hours, one surface was polished to a thickness of 3.
A clutch facing of 51 was obtained.
実施例 ５
実施例４におけるヤーン（Ａ）とバインダー（Ｂ′）を
用い、ヤーン（Ａ）にゴムバインダー（Ｂ′）を１００
重量％付着させ、１００℃で５分間乾燥させた。Example 5 Using the yarn (A) and binder (B') in Example 4, 100% of the rubber binder (B') was added to the yarn (A).
% by weight and dried at 100° C. for 5 minutes.
上記のようにして得られたものを金型に入れ、温度１８
０℃、加圧力１００ｋｇ／ａ＃の条件で加熱加圧成形し
て成形品を得た。この成形品を窒素雰囲気中において、
１８０℃で５時間熱処理してから、同じ＜３００℃で６
時間熱処理し、更に、大気雰囲気中３００℃で６時間熱
処理後、表面を研磨して厚さ３．５ｍのクラッチフェー
シングを得た。The product obtained as above was put into a mold and the temperature was 18
A molded product was obtained by heat-pressing molding at 0° C. and a pressure of 100 kg/a#. This molded product is placed in a nitrogen atmosphere,
Heat treated at 180℃ for 5 hours, then at the same <300℃ for 6 hours.
After heat treatment for 6 hours and further heat treatment at 300° C. for 6 hours in the air, the surface was polished to obtain a clutch facing with a thickness of 3.5 m.
凰敗旌−よ
実施例１の熱処理条件を２５０℃、６時間で行ない、熱
処理後１表面を研磨して厚さ３゜５膿のクラッチフェー
シングを得た。After the heat treatment, the heat treatment conditions of Example 1 were carried out at 250 DEG C. for 6 hours, and after the heat treatment, one surface was polished to obtain a clutch facing with a thickness of 3.5 degrees.
皇狡匠−主 実施例４の成形品（Ｃ′）を窒素雰囲気中において。Imperial craftsman - master The molded article (C') of Example 4 was placed in a nitrogen atmosphere.
２６０℃で６時間熱処理した後１表面を研磨して厚さ３
．５ｍのクラッチフェーシングを得た。After heat treatment at 260℃ for 6 hours, one surface was polished to a thickness of 3.
．． A clutch facing of 5m was obtained.
実施例１乃至５及び比較例１，２で得た各クラッチフェ
ーシングを自動車（トヨタ自動車層、ライトエース）に
取付け、１ｍ発進時の車体の前後振動について、加速度
計で最大値を測定した。この操作を１６０回行ない、そ
の平均値を以て耐シャダー性を表したところ、下表の通
りであった。Each of the clutch facings obtained in Examples 1 to 5 and Comparative Examples 1 and 2 was attached to a car (Toyota Motor Corporation, Lite Ace), and the maximum value of longitudinal vibration of the car body when starting from 1 m was measured using an accelerometer. This operation was performed 160 times, and the average value was used to express the shudder resistance, and the results were as shown in the table below.
上記表から明らかなように、本発明方法により得られる
摩擦材は、従来品に比して、耐シャダー性が向上した。As is clear from the above table, the friction material obtained by the method of the present invention has improved shudder resistance compared to the conventional product.
また、上記摩擦材の、摩擦材に要求される他の性能は従
来の非石綿系の摩擦材のそれと同等であった。Further, the other properties required of the friction material were equivalent to those of conventional non-asbestos friction materials.
Claims (1)
、２６０〜３２０℃で熱処理することを特徴とする摩擦
材の製造方法。 ２ 非石綿系基材、結合剤、充填剤を主材とし、成形後
、非酸化雰囲気下において２６０〜３２０℃で熱処理し
、更に大気雰囲気下において２６０〜３２０℃で熱処理
することを特徴とする摩擦材の製造方法。[Scope of Claims] 1. A method for producing a friction material, which comprises a non-asbestos base material, a binder, and a filler as main materials, and which is characterized by heat-treating at 260 to 320°C after molding. 2 The main materials are a non-asbestos base material, a binder, and a filler, and after molding, it is heat-treated at 260-320°C in a non-oxidizing atmosphere, and further heat-treated at 260-320°C in an air atmosphere. Method for manufacturing friction materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61205209A JPH06854B2 (en) | 1986-09-02 | 1986-09-02 | Method of manufacturing friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61205209A JPH06854B2 (en) | 1986-09-02 | 1986-09-02 | Method of manufacturing friction material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6361027A true JPS6361027A (en) | 1988-03-17 |
| JPH06854B2 JPH06854B2 (en) | 1994-01-05 |
Family
ID=16503206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61205209A Expired - Fee Related JPH06854B2 (en) | 1986-09-02 | 1986-09-02 | Method of manufacturing friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06854B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02214730A (en) * | 1989-02-15 | 1990-08-27 | Aisin Chem Co Ltd | Production of non-asbestos clutch facing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167934A (en) * | 1980-05-24 | 1981-12-23 | Aisin Seiki Co Ltd | Friction material |
| JPS5776328A (en) * | 1980-10-29 | 1982-05-13 | Aisin Chem Co Ltd | Manufacturing method of clutch facing without asbestos |
| JPS622029A (en) * | 1985-04-24 | 1987-01-08 | バレオ | Porous frictional material and manufacture thereof |
-
1986
- 1986-09-02 JP JP61205209A patent/JPH06854B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167934A (en) * | 1980-05-24 | 1981-12-23 | Aisin Seiki Co Ltd | Friction material |
| JPS5776328A (en) * | 1980-10-29 | 1982-05-13 | Aisin Chem Co Ltd | Manufacturing method of clutch facing without asbestos |
| JPS622029A (en) * | 1985-04-24 | 1987-01-08 | バレオ | Porous frictional material and manufacture thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02214730A (en) * | 1989-02-15 | 1990-08-27 | Aisin Chem Co Ltd | Production of non-asbestos clutch facing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06854B2 (en) | 1994-01-05 |
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