JPH02214730A - Production of non-asbestos clutch facing - Google Patents
Production of non-asbestos clutch facingInfo
- Publication number
- JPH02214730A JPH02214730A JP1035525A JP3552589A JPH02214730A JP H02214730 A JPH02214730 A JP H02214730A JP 1035525 A JP1035525 A JP 1035525A JP 3552589 A JP3552589 A JP 3552589A JP H02214730 A JPH02214730 A JP H02214730A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- asbestos
- fiber
- clutch facing
- rubber
- 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
- 239000010425 asbestos Substances 0.000 title claims abstract description 7
- 229910052895 riebeckite Inorganic materials 0.000 title claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 37
- 239000005060 rubber Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 17
- 239000004760 aramid Substances 0.000 claims abstract description 14
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 55
- 239000003365 glass fiber Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 abstract description 6
- 239000011521 glass Substances 0.000 abstract description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract description 2
- 229920001568 phenolic resin Polymers 0.000 abstract description 2
- 239000013067 intermediate product Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 11
- 239000011230 binding agent Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 229920000271 Kevlar® Polymers 0.000 description 8
- 239000004761 kevlar Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000004073 vulcanization Methods 0.000 description 7
- 239000002783 friction material Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000003856 thermoforming Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 239000005062 Polybutadiene Substances 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
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012210 heat-resistant fiber Substances 0.000 description 2
- 239000012784 inorganic fiber Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- WDCYWAQPCXBPJA-UHFFFAOYSA-N 1,3-dinitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC([N+]([O-])=O)=C1 WDCYWAQPCXBPJA-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 235000002566 Capsicum Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- -1 zinc white Chemical class 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は車輌に用いられるクラッチフェーシングの製造
方法に関するものであり、特に石綿を含まない繊維基材
からなるクラッチフェーシングの製造に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a clutch facing used in a vehicle, and particularly to a clutch facing made of a fiber base material that does not contain asbestos.
［従来の技術］
クラッチフェーシングは、石綿などの耐熱性繊維類の織
布に結合剤を含浸させて熱成形して得られるウーブンタ
イプ、短繊維や粉末状の加熱・耐摩耗材と粉末状結合剤
を混合し、熱成形して得られるモールドタイプと、この
両者の中間的な方法でつくられる、石綿などの耐熱性繊
維類の紐に結合剤を含浸させて熱成形して得られるセミ
モールドタイプに大別される。特に近年においては、こ
のセミモールドタイプが多用されている。これらのクラ
ッチフェーシングに用いられる結合剤としては、フェノ
ール樹脂などの熱硬化性樹脂やゴムが用いられている。[Conventional technology] Clutch facings are woven types obtained by impregnating a woven fabric of heat-resistant fibers such as asbestos with a binder and thermoforming it, or fabrics made of short fibers or powdered heat/wear-resistant material and a powdered binder. The mold type is obtained by mixing and thermoforming, and the semi-mold type is produced by a method intermediate between the two, which is obtained by impregnating a string of heat-resistant fibers such as asbestos with a binder and thermoforming. It is broadly divided into Particularly in recent years, this semi-mold type has been frequently used. As the binder used for these clutch facings, thermosetting resins such as phenol resins and rubbers are used.
しかしながら近年石綿の人体への悪影響が指摘され、無
石綿のクラッチフェーシングが注目されるようになって
きた。However, in recent years, the negative effects of asbestos on the human body have been pointed out, and asbestos-free clutch facings have been attracting attention.
この無石綿のクラッチフェーシングは、たとえば嵩高加
工したガラス繊ｉ、フェノール繊維や炭素繊維などの繊
維基材に熱硬化性樹脂や加硫剤などを含む配合ゴムを結
合剤とした摩擦材（特開昭５６−１６７９３４号公報）
、少なくとも８５０ ＠ｌ”の分解温度を有するアラミ
ド繊維に熱硬化性樹脂及び熱硫化性弾性体を結合剤とし
た摩擦材（特公昭６０−２８２９３号公報）や、無機繊
維を主体とする基材繊維に、熱硬化性樹脂を含浸付着さ
せ、さらにゴム配合物を付着させた後予備成形、加熱加
圧した特定の気孔率を持つクラッチフェーシングの製造
方法、またゴム配合物の加工性を向上させるために有機
繊維をゴム配合物に含有させること（特開昭６３−２８
４２２９号公報）などが提案されている。This asbestos-free clutch facing is made of a friction material (unexamined Japanese Patent Application Publication No. 2003-120000) that uses a fiber base material such as bulk-processed glass fiber, phenol fiber, or carbon fiber as a binder and a blended rubber containing a thermosetting resin or a vulcanizing agent. Publication No. 56-167934)
, a friction material made of aramid fibers having a decomposition temperature of at least 850 @l'', a thermosetting resin and a heat-sulfurizing elastic material as a binder (Japanese Patent Publication No. 1982-28293), and a base material mainly made of inorganic fibers. A method for manufacturing a clutch facing with a specific porosity by impregnating and adhering a thermosetting resin to fibers, further adhering a rubber compound, preforming, heating and pressing, and improving the processability of the rubber compound. Therefore, organic fibers should be included in rubber compounds (Japanese Patent Laid-Open No. 63-28
No. 4229) and the like have been proposed.
［発明が解決しようとする問題点］
しかしながら、近年エンジンの高回転化により、クラッ
チフェーシングの使用温度は高温になってきており、前
記のゴムを結合剤として得られた摩擦材をクラッチフェ
ーシングとした場合、高温（２００℃）でのバースト強
度が低いという問題点がある。[Problems to be Solved by the Invention] However, in recent years, as engines have increased in speed, the operating temperature of clutch facings has become higher, and clutch facings are made from friction materials obtained using the above-mentioned rubber as a binder. However, there is a problem in that the burst strength is low at high temperatures (200° C.).
［問題点を解決するための手段］
本発明は上記問題点を解決し、バースト強度の高い優れ
た無石綿クラッチフェーシングの製造方法を提供するも
のである。[Means for Solving the Problems] The present invention solves the above problems and provides a method for manufacturing an excellent asbestos-free clutch facing with high burst strength.
すなわちセミモールドタイプの無石綿クラッチフェーシ
ングにおいて、
（ａ）少なくともガラス繊維を含む繊維基材に熱硬化性
樹脂を含浸被覆する工程と
（ｂ）熱硬化性樹脂を含浸被覆させた繊維基材にパルプ
状芳香族ポリアミド繊維を分散させた配合ゴムを付着さ
せる工程と
（ｃ）配合ゴムを付着させた繊維基材を巻取った後、加
熱加圧成形する工程と
からなる無石綿クラッチフェーシングの製造方法である
。That is, in a semi-mold type asbestos-free clutch facing, (a) a step of impregnating and coating a fiber base material containing at least glass fiber with a thermosetting resin, and (b) a step of impregnating and coating a fiber base material containing at least glass fiber with a thermosetting resin, and (b) applying pulp to the fiber base material impregnated and coated with a thermosetting resin. A method for manufacturing an asbestos-free clutch facing, which comprises the steps of: (c) attaching a compounded rubber in which aromatic polyamide fibers are dispersed; and (c) winding up the fiber base material to which the compounded rubber is attached, and then heating and press-molding the fiber base material. It is.
本発明のガラス繊維以外の繊維基材としては、ロックウ
ール、カーボン繊維、セラミック繊維などの無機繊維や
、レーヨン、コツトン、芳香族ポリアミド繊維などの有
機繊維が混合使用される。As the fiber base materials other than glass fibers of the present invention, inorganic fibers such as rock wool, carbon fibers, and ceramic fibers, and organic fibers such as rayon, cotton fibers, and aromatic polyamide fibers are mixed and used.
ガラス繊維を単独で用いる場合は、嵩高加工されたガラ
ス繊維を用いるのが望ましい。When using glass fiber alone, it is desirable to use bulk-treated glass fiber.
本発明の熱硬化性樹脂としては、例えばフェノール樹脂
、メラミン樹脂、エポキシ樹脂、ポリエステル樹脂、メ
ラミン変性・オイル変性などのフェノール樹脂、フェノ
ール変性メラミン樹脂などが使用できる。好ましくはフ
ェノール樹脂である。この熱硬化性樹脂は固形分１０％
〜３０％の溶液として用いられる。As the thermosetting resin of the present invention, for example, phenol resin, melamine resin, epoxy resin, polyester resin, melamine-modified/oil-modified phenol resin, phenol-modified melamine resin, etc. can be used. Preferably it is a phenolic resin. This thermosetting resin has a solid content of 10%
Used as a ~30% solution.
本発明の配合ゴムは、ゴム材、加硫剤、加硫促進剤、加
硫助剤、摩擦特性向上剤などの充填材およびパルプ状芳
香族ポリアミド繊維を含んでいる。The compounded rubber of the present invention contains fillers such as a rubber material, a vulcanizing agent, a vulcanization accelerator, a vulcanization aid, and a frictional property improver, and pulp-like aromatic polyamide fibers.
ゴム材としては、スチレン・ブタジェンゴム（ＳＢＲ）
、アクリロニトリル・ブタジェンゴム（ＮＢＲ）、ブタ
ジェンゴム（ＢＲ）、クロロブレンゴム（ｃＲ）などの
合成ゴムや天然ゴムが１種または２種以上を混合して用
いられる。特にＳＢＲが好ましい。As a rubber material, styrene-butadiene rubber (SBR)
, acrylonitrile-butadiene rubber (NBR), butadiene rubber (BR), chloroprene rubber (cR), and other synthetic rubbers or natural rubbers may be used singly or in combination of two or more. Particularly preferred is SBR.
加硫剤としては、イオウ、酸化亜鉛、ジニトロベンゼン
、有機過酸化物などが用いられ、加硫促進剤としては、
グアニジン系、チアゾール系、スルフェンアミド系、チ
ウラム系などが用いられ、加硫助剤としては、亜鉛華な
どの金属酸化物や、ステアリン酸、オレイン酸などの脂
肪酸が用いられる。As vulcanizing agents, sulfur, zinc oxide, dinitrobenzene, organic peroxides, etc. are used, and as vulcanization accelerators,
Guanidine-based, thiazole-based, sulfenamide-based, thiuram-based, etc. are used, and as vulcanization aids, metal oxides such as zinc white, and fatty acids such as stearic acid and oleic acid are used.
摩擦特性向上剤などの充填材としては、カシューダスト
、グラファイト、硫酸バリウム、ケイソー土などが用い
られる。As fillers such as frictional property improvers, cashew dust, graphite, barium sulfate, diatomaceous earth, etc. are used.
フィラメント、ステーブル、チョツプドファイバー、パ
ルプなどの形状で市販されている芳香族ポリアミド繊維
の内、本発明の配合ゴムに分散させるパルプ状芳香族ポ
リアミド繊維としては、極めて短く高度にフィブリル化
させたパルプ状のものであり、繊維長は０．５ｍｍ〜１
．５ｍｍで、最多部分の径０．１〜２ＩｕＲである。Among the aromatic polyamide fibers commercially available in the form of filaments, stable fibers, chopped fibers, pulps, etc., the pulp-like aromatic polyamide fibers to be dispersed in the compounded rubber of the present invention are extremely short and highly fibrillated. It is a pulp-like material with a fiber length of 0.5 mm to 1
．． 5 mm, and the diameter of the largest part is 0.1 to 2 IuR.
パルプ状芳香族ポリアミド繊維の配合割合は、配合ゴム
中に１．０〜８．０重量％が好ましい。The blending ratio of the pulp-like aromatic polyamide fibers in the compounded rubber is preferably 1.0 to 8.0% by weight.
本発明の配合ゴムは、例えば予めゴム材と加硫剤、加硫
促進剤、加硫助剤、摩擦特性向上剤などの充填材および
パルプ状芳香族ポリアミド繊維とをローラーで混練する
。さらにこの混練した配合ゴムを溶剤で溶解、分散させ
て粘度を１０，０００〜２０．０ＯＯｃｐｓ （ａｔ、
２０℃）に調整して使用される。The compounded rubber of the present invention is prepared by, for example, kneading a rubber material, a filler such as a vulcanizing agent, a vulcanization accelerator, a vulcanization aid, and a frictional property improver, and pulp-like aromatic polyamide fibers in advance using a roller. Furthermore, this kneaded rubber compound is dissolved and dispersed in a solvent to adjust the viscosity to 10,000 to 20.0OOcps (at,
20°C) before use.
また混練した配合ゴムを無溶剤の状態で紐状に予備成形
して使用される。It is also used by preforming kneaded compounded rubber into a string shape in a solvent-free state.
つぎに、本発明の無石綿タラッチフエーシングの製造方
法の代表的な例を以下に述べる。Next, a typical example of the method for manufacturing the asbestos-free Talatch facing of the present invention will be described below.
まず少なくともガラス繊維を含む繊維基材を熱硬化性樹
脂溶液に含浸被覆させた後、溶剤を十分揮発するまで加
熱乾燥する。この熱硬化性樹脂を被覆された繊維基材を
配合ゴム溶液に含浸し、配合ゴムを付着させた後、乾燥
するか、または、予め紐状に予備成形した配合ゴムを押
出機を用いて、付着させる。つぎに配合ゴムを付着させ
た繊維基材をループ状に巻取った後、圧縮成形機にて面
圧９０〜１３０ ｋｇ／ｃｍ２、温度１６０〜１８０℃
で加熱加圧成形する。さらに得られた成形品を１３０〜
２５０℃の温度で熱処理した後、研磨して無石綿タラッ
チフェーシングを得る。First, a fiber base material containing at least glass fibers is impregnated and coated with a thermosetting resin solution, and then heated and dried until the solvent is sufficiently volatilized. The fiber base material coated with this thermosetting resin is impregnated with a compounded rubber solution and the compounded rubber is attached, and then dried, or the compounded rubber preformed into a string shape is used in an extruder. Make it adhere. Next, after winding up the fiber base material to which the compounded rubber is attached into a loop shape, it is molded using a compression molding machine at a surface pressure of 90 to 130 kg/cm2 and a temperature of 160 to 180°C.
Heat and pressure mold. Furthermore, the obtained molded product is 130 ~
After heat treatment at a temperature of 250° C., it is polished to obtain an asbestos-free Talatch facing.
発明の無石綿クラッチフェーシングの構成は、繊維基材
が２０重量％〜５０重量％、熱硬化性樹脂が５重量％〜
２５重量％、配合ゴムが４０重量％〜６０重量％の量で
用いられる。このほか、金属線を１〜５重量％を用いて
もよい。The composition of the asbestos-free clutch facing of the invention is that the fiber base material is 20% to 50% by weight, and the thermosetting resin is 5% to 50% by weight.
25% by weight, compounded rubber is used in an amount of 40% to 60% by weight. In addition, 1 to 5% by weight of metal wire may be used.
［発明の作用および効果］
本発明の無石綿タラツチフエーシングは、主な結合剤と
なる配合ゴム剤中に、極めて短く、かつ高度にフィブリ
ル化されたパルプ状芳香族ポリアミド繊維が均一に分散
された状態で含有されているので、縮合剤の強度を向上
させるだけでなく、繊維基材とのカラミにより、摩擦材
のバースト強度を大幅に向上させるとともに、シャダー
特性をも向上する。また高温域において、結合剤である
ゴムが軟化した場合においても、パルプ状芳香族ポリア
ミド繊維が均一に分散しているため、摩擦材のバースト
強度を十分確保することができる。[Operations and Effects of the Invention] The asbestos-free taratu facing of the present invention has extremely short and highly fibrillated pulp-like aromatic polyamide fibers uniformly dispersed in the compounded rubber agent that serves as the main binder. Not only does it improve the strength of the condensing agent, but also greatly improves the burst strength of the friction material and improves the shudder properties due to the combination with the fiber base material. Furthermore, even if the rubber that is the binder softens in the high temperature range, the pulp-like aromatic polyamide fibers are uniformly dispersed, so the burst strength of the friction material can be ensured sufficiently.
さらにパルプ状芳香族ポリアミド繊維は耐熱性に優れて
いるため、高温域での摩擦特性も低下させることはない
。Furthermore, since the pulp-like aromatic polyamide fiber has excellent heat resistance, the frictional properties at high temperatures are not deteriorated.
［実施例］
以下無石綿クラッチフェーシングの製造方法の具体例を
詳細に説明する。[Example] A specific example of a method for manufacturing an asbestos-free clutch facing will be described in detail below.
［実施例１］
６趣の繊維径を有するガラス単繊維を収束させストラン
ドとした後、嵩高加工したガラス繊維を固形分１５重量
％のフェノール樹脂溶液に含浸被覆させた後、１３０℃
で５分間溶剤が十分に揮発するまで乾燥させる。[Example 1] After converging glass single fibers having six different fiber diameters to form a strand, the bulked glass fibers were impregnated and coated with a phenol resin solution with a solid content of 15% by weight, and then heated at 130°C.
Dry for 5 minutes until the solvent evaporates completely.
つぎに予め５ＢＲ２５重量部、加硫剤（加硫促進剤、助
剤を含む）１０重量部および充填材６５重量部をローラ
にて混練した配合ゴムＡを得る。さらにこの配合ゴムＡ
にパルプ状ケブラー繊維（イー・アイ・デュポン製）を
加え、繊維含有率が２重量％になるようさらにローラで
混練したものを、トルエンで粘度を１０，０００〜１５
，０００ｃｐｓ （ａｔ、２０℃）となるように調整す
る。この調整した配合ゴム分散液に熱硬化性樹脂で被覆
されたガラス繊維および真ちゅう線を同時に含浸し、絞
り出しして配合ゴムが付着したガラス繊維を得た。その
後十分に風乾させ巻取り機にてループ形状に壱取った後
、面圧１００ｋｇ／ｃ■２、温度１６５℃の成形条件に
セットした圧縮成形機を用いて３分間加熱加圧成形する
。この時数回のガス抜きを行う。得られた成形品を加熱
炉で１５０℃で５時間、２００℃で２時間および２５０
℃で１時間熱処理した後、摩擦材の両面を研磨して、無
石綿タラッチフェーシングを得た。この無石綿クラッチ
フェーシングの組成を表１に示した。Next, compounded rubber A is obtained by previously kneading 25 parts by weight of 5BR, 10 parts by weight of a vulcanizing agent (including a vulcanization accelerator and an auxiliary agent), and 65 parts by weight of a filler using a roller. Furthermore, this compound rubber A
Pulp-like Kevlar fiber (manufactured by EI DuPont) was added to the mixture, and the mixture was further kneaded with a roller so that the fiber content was 2% by weight, and the viscosity was reduced to 10,000-15% with toluene.
,000 cps (at, 20°C). A glass fiber coated with a thermosetting resin and a brass wire were simultaneously impregnated into the prepared compounded rubber dispersion, and the mixture was squeezed out to obtain a glass fiber to which the compounded rubber was attached. Thereafter, it was thoroughly air-dried and cut into a loop shape using a winder, and then heated and pressure-molded for 3 minutes using a compression molding machine set to molding conditions of a surface pressure of 100 kg/cm² and a temperature of 165°C. At this time, vent the gas several times. The obtained molded product was heated in a heating furnace at 150°C for 5 hours, at 200°C for 2 hours, and at 250°C.
After heat treatment at ℃ for 1 hour, both sides of the friction material were polished to obtain an asbestos-free Talatch facing. The composition of this asbestos-free clutch facing is shown in Table 1.
［実施例２］
配合ゴムＡにパルプ状ケブラー繊維を加え、繊維含有率
が３重量％になるようローラで混練した）以外は、実施
例１と同様の方法にて無石綿クラッチフェーシングを得
た。この無石綿クラッチフェーシングの組成を表１に示
した。[Example 2] Asbestos-free clutch facings were obtained in the same manner as in Example 1, except that pulp-like Kevlar fibers were added to compounded rubber A and kneaded with a roller so that the fiber content was 3% by weight. . The composition of this asbestos-free clutch facing is shown in Table 1.
［実施例３］
配合ゴムＡにパルプ状ケブラー繊維を加え、繊維含有率
が６重量％になるようローラーで混練した以外は、実施
例１と同様の方法にて無石綿クラッチフェーシングを得
た。この無石綿クラッチフェーシングの組成を表１に示
した。[Example 3] An asbestos-free clutch facing was obtained in the same manner as in Example 1, except that pulp-like Kevlar fibers were added to Compound Rubber A and kneaded with a roller so that the fiber content was 6% by weight. The composition of this asbestos-free clutch facing is shown in Table 1.
［比較例１］
パルプ状ケブラー繊維を含有しない配合ゴムＡのみを用
いた以外は実施例１と同様の方法にて無石綿クラッチフ
ェーシングを得た。この無石綿タラッチフエーシングの
組成を表１に示した。[Comparative Example 1] An asbestos-free clutch facing was obtained in the same manner as in Example 1 except that only compounded rubber A containing no pulpy Kevlar fiber was used. The composition of this asbestos-free Talatch facing is shown in Table 1.
［比較例２］
配合ゴムＡに繊維要約３７ｍｍ、径約１２ｗＲのチョツ
プドファイバー状ケブラー繊維（イー・アイ・デュポン
製）を加え、繊維含有率が２重量％になるようローラで
混練した以外は、実施例１と同様にして無石綿タラッチ
フェーシングを得た。この無石綿タラッチフエーシング
の組成を表１に示した。[Comparative Example 2] Chopped Kevlar fibers (manufactured by E.I. DuPont) with a fiber length of 37 mm and a diameter of about 12 wR were added to Compound Rubber A, and kneaded with a roller so that the fiber content was 2% by weight. An asbestos-free Talatch facing was obtained in the same manner as in Example 1. The composition of this asbestos-free Talatch facing is shown in Table 1.
［比較例３］
配合ゴムＡにチョツプドファイバー状ケブラー繊維を加
え、繊維含有率が６重量％になるようローラで混練した
以外は実施例１と同様にして無石綿タラッチフェーシン
グを得た。この無石綿クラッチフェーシングの組成を表
１に示した。[Comparative Example 3] Asbestos-free Talatch facing was obtained in the same manner as in Example 1, except that chopped Kevlar fibers were added to Compound Rubber A and kneaded with a roller so that the fiber content was 6% by weight. . The composition of this asbestos-free clutch facing is shown in Table 1.
［比較例４］
６膓の繊維径を有するガラスｊｌＬ繊維を収束させたス
トランドとフィラメント状のケブラー１１１ｍを同時に
嵩高加工し、繊維基材を得る。この繊維基材を用いて比
較例１と同様にして無石綿タラッチフェーシングを得た
。この無石綿クラッチフェーシングの組成を表１に示し
た。[Comparative Example 4] A strand of glass jIL fibers having a fiber diameter of 6 mm and a filament-like Kevlar 111 m are simultaneously bulk-processed to obtain a fiber base material. Asbestos-free Talatch facing was obtained in the same manner as in Comparative Example 1 using this fiber base material. The composition of this asbestos-free clutch facing is shown in Table 1.
以上の実施例１〜３、比較例１〜４で得られた無石綿ク
ラッチフェーシングの性能をみるため、種々の試験を行
い、その結果を表１に示した。Various tests were conducted to examine the performance of the asbestos-free clutch facings obtained in Examples 1 to 3 and Comparative Examples 1 to 4, and the results are shown in Table 1.
（試験方法）
バースト強度：クラッチフェーシング単体、穴明は品、
サイズ２３５φ×！５０φ×
３．５を
回転上昇速度２００ｒｐ＋ｎ／ｓｅｃでバースト試験機
にて試験し、常温時およ
び２００℃雰囲気でバースト破壊し
た時の回転数で評価。(Test method) Burst strength: Clutch facing alone, hole drilling is good,
Size 235φ×! 50φ x 3.5 was tested with a burst tester at a rotational increase rate of 200rp+n/sec, and evaluated by the rotational speed at room temperature and at 200°C atmosphere when burst failure occurred.
摩擦係数：フルサイズ試験にて、
慣性モーメント：０．４ｋｇ−ｍ−５’回転数：１５０
０ｒｐｍ、押付カニ４００ｋｇ。Friction coefficient: in full size test, moment of inertia: 0.4kg-m-5' rotation speed: 150
0 rpm, pressing crab 400kg.
試験回数：４０００ 、摩擦温度：２００℃表１に示
す性能試験結果から解るように、本発明の実施例１〜３
の無石綿クラッチフェーシングは、比較例１〜３に比ペ
パースト強度が常温、２００℃共に高く、比較例４のケ
ブラーヤーンを１５重量％を使用したタラッチフェーシ
ングと同等の性能を示している。Test number: 4000, Friction temperature: 200°C As can be seen from the performance test results shown in Table 1, Examples 1 to 3 of the present invention
The asbestos-free clutch facing of Comparative Examples 1 to 3 has higher specific pepper strength at room temperature and 200°C, and exhibits performance equivalent to Comparative Example 4, which uses 15% by weight of Kevlar yarn.
また、シャダー特性を評価したところ、実施例３は、０
．１２Ｇであり、比較例１のＯ，１５Ｇに比較してシャ
ダー特性は良好であった。In addition, when the shudder characteristics were evaluated, Example 3 had 0
．． 12G, and the shudder characteristics were better than O, 15G in Comparative Example 1.
Claims (1)
グの製造方法において （ａ）少なくともガラス繊維を含む繊維基材に、熱硬化
性樹脂を含浸被覆させる工程と （ｂ）熱硬化性樹脂を含浸被覆させた繊維基材に、パル
プ状芳香族ポリアミド繊維を分散 させた配合ゴムを付着させる工程と （ｃ）配合ゴムを付着させた繊維基材を巻取った後、加
熱加圧成形する工程と からなる無石綿クラッチフェーシングの製造方法。(1) A method for manufacturing a semi-mold type asbestos-free clutch facing, which includes (a) impregnating and coating a fiber base material containing at least glass fiber with a thermosetting resin; and (b) impregnating and coating a thermosetting resin. A process consisting of a step of attaching a compounded rubber in which pulp-like aromatic polyamide fibers are dispersed to a fiber base material, and (c) a step of winding up the fiber base material to which the compound rubber is attached, and then heating and press-molding the fiber base material. Method for manufacturing asbestos clutch facings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1035525A JPH0643503B2 (en) | 1989-02-15 | 1989-02-15 | Method for manufacturing asbestos-free clutch facing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1035525A JPH0643503B2 (en) | 1989-02-15 | 1989-02-15 | Method for manufacturing asbestos-free clutch facing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02214730A true JPH02214730A (en) | 1990-08-27 |
| JPH0643503B2 JPH0643503B2 (en) | 1994-06-08 |
Family
ID=12444162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1035525A Expired - Lifetime JPH0643503B2 (en) | 1989-02-15 | 1989-02-15 | Method for manufacturing asbestos-free clutch facing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643503B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009227706A (en) * | 2008-03-19 | 2009-10-08 | Nippon Brake Kogyo Kk | Friction material composition and friction material using it |
| JP2011063819A (en) * | 2010-12-28 | 2011-03-31 | Nippon Brake Kogyo Kk | Friction material composition and friction material using the same |
| CN112920478A (en) * | 2021-02-05 | 2021-06-08 | 泰兴市瑞丰汽车零部件有限公司 | Clutch disc containing winding type wire harness and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57147572A (en) * | 1981-03-06 | 1982-09-11 | Teijin Ltd | Friction material composition |
| JPS5874775A (en) * | 1981-10-27 | 1983-05-06 | Aisin Chem Co Ltd | Friction material |
| JPS5945383A (en) * | 1982-09-07 | 1984-03-14 | ボ−グ・ワ−ナ−・コ−ポレ−シヨン | Dry friction material composition |
| JPS6361027A (en) * | 1986-09-02 | 1988-03-17 | Nisshinbo Ind Inc | Production of friction material |
-
1989
- 1989-02-15 JP JP1035525A patent/JPH0643503B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57147572A (en) * | 1981-03-06 | 1982-09-11 | Teijin Ltd | Friction material composition |
| JPS5874775A (en) * | 1981-10-27 | 1983-05-06 | Aisin Chem Co Ltd | Friction material |
| JPS5945383A (en) * | 1982-09-07 | 1984-03-14 | ボ−グ・ワ−ナ−・コ−ポレ−シヨン | Dry friction material composition |
| JPS6361027A (en) * | 1986-09-02 | 1988-03-17 | Nisshinbo Ind Inc | Production of friction material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009227706A (en) * | 2008-03-19 | 2009-10-08 | Nippon Brake Kogyo Kk | Friction material composition and friction material using it |
| JP2011063819A (en) * | 2010-12-28 | 2011-03-31 | Nippon Brake Kogyo Kk | Friction material composition and friction material using the same |
| CN112920478A (en) * | 2021-02-05 | 2021-06-08 | 泰兴市瑞丰汽车零部件有限公司 | Clutch disc containing winding type wire harness and preparation method thereof |
| CN112920478B (en) * | 2021-02-05 | 2023-05-12 | 泰兴市瑞丰汽车零部件有限公司 | Clutch plate containing wire harness wound and woven and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0643503B2 (en) | 1994-06-08 |
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