JPS594456B2 - Brake lining material - Google Patents
Brake lining materialInfo
- Publication number
- JPS594456B2 JPS594456B2 JP8270478A JP8270478A JPS594456B2 JP S594456 B2 JPS594456 B2 JP S594456B2 JP 8270478 A JP8270478 A JP 8270478A JP 8270478 A JP8270478 A JP 8270478A JP S594456 B2 JPS594456 B2 JP S594456B2
- Authority
- JP
- Japan
- Prior art keywords
- brake lining
- fiber
- flame
- lining material
- resistant
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 title claims description 19
- 229920002972 Acrylic fiber Polymers 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 description 15
- 239000010425 asbestos Substances 0.000 description 7
- 229910052895 riebeckite Inorganic materials 0.000 description 7
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000012360 testing method Methods 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
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 241000180587 Pinnidae Species 0.000 description 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000005060 rubber Substances 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- 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
- F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/18—Homopolymers or copolymers of nitriles
- C08L33/20—Homopolymers or copolymers of acrylonitrile
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】
本発明はアクリル系耐炎化繊維を基材として結合剤によ
り固めた摺動特性の優れたブレーキライニング材に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a brake lining material having excellent sliding properties, which is made of flame-resistant acrylic fiber as a base material and hardened with a binder.
５従来自動車分野で用いられているブレーキライニン
グ材は基材としてアスベストを用いたものが一般的であ
る。5 Brake lining materials conventionally used in the automobile field generally use asbestos as the base material.
しかしながらアスベストの粉塵は肺ガン発生の一原因で
あることが指摘されており、これに代る繊維基材が要望
されている。However, it has been pointed out that asbestos dust is one of the causes of lung cancer, and there is a demand for an alternative fibrous base material.
ブレーキライニング材の性能としては適度の摩擦係数と
耐摩耗性、耐フェード性が優れているこ５ とが必要で
ある。Brake lining materials need to have an appropriate coefficient of friction, wear resistance, and fade resistance5.
本発明者らはアクリル繊維を焼成して得られる耐炎化繊
維の特性について種々検討した結果、これを基材に用い
ることにより非アスベスト化が可態となり、しかも摩擦
係数が比較的高く、耐摩耗・ｏ 性、耐フェード性の優
れたブレーキライニング材が得られることを見出し本発
明に到達したものである。The present inventors conducted various studies on the characteristics of flame-resistant fibers obtained by firing acrylic fibers, and found that by using this as a base material, it is possible to make it non-asbestos, and it has a relatively high coefficient of friction and is resistant to wear. - The present invention was achieved by discovering that a brake lining material with excellent o properties and fade resistance can be obtained.
本発明にかゝわるブレーキライニング材は耐炎化繊維の
他の結合剤としてフェノール樹脂、エポ５ キシ樹脂、
ポリイミド樹脂あるいはゴムなどが用いられ、又ブレー
キ特性の改良のため金属粉や無機粉末などの添加剤の使
用も可能である。The brake lining material according to the present invention uses phenolic resin, epoxy resin,
Polyimide resin or rubber is used, and additives such as metal powder or inorganic powder can also be used to improve braking characteristics.
また繊維基材として耐炎化繊維にアスベスト、ガラス繊
維、炭素繊維、金属繊維などを添加することもでυ き
る。耐炎化繊維はアクリロニトリル成分８５重量ノゞ−
セント以上を含むアクリル繊維を前駆体として酸化性雰
囲気例えば空気中２００〜４００℃で加熱焼成されたも
のであり、熱処理に伴う繊維中の５ 結合酸素量が５％
以上のものである。It is also possible to add asbestos, glass fiber, carbon fiber, metal fiber, etc. to the flame-resistant fiber as a fiber base material. The flame-resistant fiber contains acrylonitrile component of 85% by weight.
Acrylic fibers containing more than 50% carbon dioxide are heated and fired in an oxidizing atmosphere, such as air, at 200 to 400°C as a precursor, and the amount of 5-bonded oxygen in the fibers due to heat treatment is 5%.
That's all.
酸素結合量５％未満の場合には耐炎効果不充分であり、
ブレーキ材としての物性に適合しない。第１表は本発明
に基づくブレーキライニング材の摩擦係数、摩耗率に対
する温度の影響をアスベｏ スト系と比較した実験例を
示したものである。If the amount of oxygen binding is less than 5%, the flame resistance effect is insufficient,
Physical properties not suitable for brake material. Table 1 shows an experimental example in which the influence of temperature on the friction coefficient and wear rate of the brake lining material according to the present invention was compared with that of an asbestos material.
この実験で用いた耐炎化繊維はアクリロニトリル９７％
、アクリル酸メチル３％共重合体からなるアクリル繊維
を空気中２６０℃、２時間処理したものであり、その結
合酸素量は９．５％であつた。第１表に明らかな如く、
本発明にか＼わるブレーキライニング材（▲２）の場合
にはアスベスト系（扁１）に較べて摩擦係数が高く、し
かも高温における耐摩耗特性に優れている。なお使用す
る耐炎繊維の形態としては例えば繊維長１０Ｕ以下の短
繊維の形で樹脂、添加剤とドライブレンドして成形する
方法のほか、織物、フエルトなどの形で樹脂含浸、成形
する方法も適用できる。The flame-resistant fiber used in this experiment is 97% acrylonitrile.
, an acrylic fiber made of a 3% methyl acrylate copolymer was treated in air at 260° C. for 2 hours, and the amount of bound oxygen was 9.5%. As is clear from Table 1,
The brake lining material (▲2) according to the present invention has a higher friction coefficient than asbestos-based material (flat 1) and has excellent wear resistance at high temperatures. Regarding the form of flame-resistant fibers used, for example, short fibers with a fiber length of 10 U or less can be dry-blended with resin and additives and molded, as well as methods in which they are impregnated with resin and molded into fabrics, felts, etc. can.
実施例
アクリロニトリル９８％、アクリルアミド２％共重合体
からなるアクリル繊維トウ（単繊維デニール；１．５、
フイラメント数２６０，０００）を空気中２７０℃，９
０分処理して耐炎化繊維を得た。Example Acrylic fiber tow (single fiber denier: 1.5,
260,000 filaments) in air at 270℃, 9
After treatment for 0 minutes, flame-resistant fibers were obtained.
得られた耐炎化繊維の結合酸素量は１１％であつた。こ
の耐炎化繊維を繊維長３關に切断し、次のような配合比
でペンシェルミキサーにより混合した後、金型を用いて
圧力１６０Ｋ′／（７ｉ？、温度１７０℃で圧縮成形し
て自動車用デイスクブレーキのノ〈ツド材を得た。The amount of bound oxygen in the obtained flame-resistant fiber was 11%. The flame-resistant fibers were cut into three fiber lengths, mixed in a pen shell mixer at the following blending ratio, and then compression molded using a mold at a pressure of 160 K'/(7i?) and a temperature of 170°C to form automobiles. Obtained material for disc brakes.
得られたパツド材をＪＩＳＤ４４ｌｌに準じた方法で定
速摩擦試験の結果、２５０℃における摩擦係数は０．３
９であり、また摩耗量は１．９イ〜／Ｋｆｍであつた。The resulting pad material was subjected to a constant speed friction test in accordance with JISD44ll, and the friction coefficient at 250°C was 0.3.
9, and the wear amount was 1.9 I/Kfm.
ブレーキダイナモ・メーターによりブレーキ特性を評価
した結果、従来のアスベスト系パツドと比較して遜色な
い耐フエード性が得られ、テスト後の摩粍量も少かつた
。As a result of evaluating the brake characteristics using a brake dynamo meter, it was found that fade resistance was comparable to that of conventional asbestos-based pads, and the amount of wear after testing was also small.
Claims (1)
系耐炎化繊維を基材としてなるブレーキライニング材。1. A brake lining material made of a flame-resistant acrylic fiber having a bound oxygen content of at least 5%.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8270478A JPS594456B2 (en) | 1978-07-07 | 1978-07-07 | Brake lining material |
| GB7922998A GB2027724B (en) | 1978-07-07 | 1979-07-02 | Brake lining material |
| DE2926616A DE2926616C2 (en) | 1978-07-07 | 1979-07-02 | Friction lining |
| CA331,165A CA1125677A (en) | 1978-07-07 | 1979-07-04 | Brake lining material |
| IT4965979A IT1118888B (en) | 1978-07-07 | 1979-07-05 | SEAL MATERIAL FOR BRAKES IN PARTICULAR FOR VEHICLES |
| NL7905300A NL7905300A (en) | 1978-07-07 | 1979-07-06 | BRAKE LINING MATERIAL. |
| FR7917570A FR2430545A1 (en) | 1978-07-07 | 1979-07-06 | MATERIAL FOR BRAKE PADS OR TRIMS |
| SE7905936A SE7905936L (en) | 1978-07-07 | 1979-07-06 | BROMSBELEGGNINGSMATERIAL |
| US06/055,668 US4259397A (en) | 1978-07-07 | 1979-07-09 | Brake lining material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8270478A JPS594456B2 (en) | 1978-07-07 | 1978-07-07 | Brake lining material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS559659A JPS559659A (en) | 1980-01-23 |
| JPS594456B2 true JPS594456B2 (en) | 1984-01-30 |
Family
ID=13781778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8270478A Expired JPS594456B2 (en) | 1978-07-07 | 1978-07-07 | Brake lining material |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS594456B2 (en) |
| NL (1) | NL7905300A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2489455B1 (en) * | 1980-09-04 | 1986-04-11 | Valeo | FRICTION LINING, ESPECIALLY FOR BRAKES, CLUTCHES AND OTHER APPLICATIONS |
| JPS58113641A (en) * | 1981-12-26 | 1983-07-06 | Toho Rayon Co Ltd | Brake shoe material and method of producing thereof |
| JPS60139932A (en) * | 1983-12-28 | 1985-07-24 | Komatsu Ltd | Wet frictional member |
| JP2007190135A (en) * | 2006-01-18 | 2007-08-02 | Riido:Kk | Seat cover for taxi driver's seat |
| JP5407083B2 (en) * | 2008-12-25 | 2014-02-05 | 曙ブレーキ工業株式会社 | Wet friction material |
-
1978
- 1978-07-07 JP JP8270478A patent/JPS594456B2/en not_active Expired
-
1979
- 1979-07-06 NL NL7905300A patent/NL7905300A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS559659A (en) | 1980-01-23 |
| NL7905300A (en) | 1980-01-09 |
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