JPS62215678A - Friction material for brake - Google Patents
Friction material for brakeInfo
- Publication number
- JPS62215678A JPS62215678A JP5711386A JP5711386A JPS62215678A JP S62215678 A JPS62215678 A JP S62215678A JP 5711386 A JP5711386 A JP 5711386A JP 5711386 A JP5711386 A JP 5711386A JP S62215678 A JPS62215678 A JP S62215678A
- Authority
- JP
- Japan
- Prior art keywords
- component
- weight
- friction material
- heat
- 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.)
- Pending
Links
- 239000002783 friction material Substances 0.000 title claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 239000003365 glass fiber Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 9
- 235000012241 calcium silicate Nutrition 0.000 claims abstract description 9
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000010425 asbestos Substances 0.000 abstract description 9
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 9
- 239000010456 wollastonite Substances 0.000 abstract description 3
- 229910052882 wollastonite Inorganic materials 0.000 abstract description 3
- 244000226021 Anacardium occidentale Species 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 235000020226 cashew nut Nutrition 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 239000010439 graphite Substances 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 2
- 150000004706 metal oxides Chemical class 0.000 abstract description 2
- 229910052976 metal sulfide Inorganic materials 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 238000005562 fading Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000013065 commercial product Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229920000271 Kevlar® Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004761 kevlar Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 238000010998 test 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
- FWBHETKCLVMNFS-UHFFFAOYSA-N 4',6-Diamino-2-phenylindol Chemical compound C1=CC(C(=N)N)=CC=C1C1=CC2=CC=C(C(N)=N)C=C2N1 FWBHETKCLVMNFS-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- -1 polyparaphenylene terephthalamide Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、アスベスト成分を含まないブレーキ用摩擦材
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a friction material for brakes that does not contain asbestos components.
従来、ブレーキ用摩擦材の主要構成成分としてアスベス
トが多く使用されている。しかしアスベストが人体に有
害であるという報告が出されてからは、アスベストを含
まないブレーキ用摩擦材に関する研究がなされている。Conventionally, asbestos has been widely used as a main component of friction materials for brakes. However, since it was reported that asbestos is harmful to the human body, research has been conducted into friction materials for brakes that do not contain asbestos.
例えば特開昭５７−８５８７７号公報には、ガラス繊維
と芳香族ポリアミド繊維等の耐熱性有機繊維を樹脂で結
合した摩擦材が開示されている。For example, JP-A-57-85877 discloses a friction material in which glass fibers and heat-resistant organic fibers such as aromatic polyamide fibers are bonded with a resin.
上記公報に開示された摩擦材は、構成成分であるガラス
繊維にアスベストのようなカラミがないので、ブレーキ
系統が高温になり結合Ｓ脂が軟化するとガラス繊維が脱
落し、著るしく摩耗量が増大する。耐熱性有機繊維とい
えども４００℃程度以上では分解してしまうので、この
点からも摩耗量が増大しやすい、また耐熱性有機繊維が
高温で溶融または分解してガスを発生すると、摩擦係数
が低下し、いわゆるフェード現象を起す、そのため上記
摩擦材は、アスベストを使用した摩擦材に比較して高温
時の耐摩耗性、耐フェード性が劣っている。The friction material disclosed in the above publication does not have asbestos-like fibers in its constituent glass fibers, so when the brake system gets hot and the bonded S fat softens, the glass fibers fall off, significantly reducing the amount of wear. increase Even heat-resistant organic fibers decompose at temperatures above about 400°C, so the amount of wear tends to increase.Also, when heat-resistant organic fibers melt or decompose at high temperatures and generate gas, the coefficient of friction increases. Therefore, the above-mentioned friction material has inferior wear resistance and fade resistance at high temperatures compared to friction materials using asbestos.
一方、アスベストの代りに金属繊維を用いた摩擦材があ
る。この摩擦材は、高温時の耐摩耗性、耐フェード性な
どは優れたものであるが１重量が重かったり、高温摩擦
時に発火するという欠点がある。On the other hand, there are friction materials that use metal fibers instead of asbestos. Although this friction material has excellent wear resistance and fade resistance at high temperatures, it has drawbacks such as being heavy and igniting during high temperature friction.
本発明は上記欠点を解消し、常温時は勿論、高温時の耐
摩耗性、耐フェード性に優れ、人体に無害の材料を使い
、しかも重量が軽いブレーキ用摩擦材を提供しようとす
るものである。The present invention aims to eliminate the above-mentioned drawbacks and provide a friction material for brakes that has excellent wear resistance and fade resistance not only at room temperature but also at high temperatures, uses materials that are harmless to the human body, and is light in weight. be.
上記問題点を解決するための本発明を適用するブレーキ
用摩擦材は、ガラス繊！ａ５〜１０重ｊｉ部と耐熱性有
機繊維２〜１０重量部と針状又は長柱状のカルシウムメ
タシリケート５〜３０ｆｆｉｆｉＬＢからなる基材質成
分が１２〜５０重量％、熱硬化性樹脂成分６〜１２重量
％、粉末成分３８〜８２重量％を含有している。The friction material for brakes to which the present invention is applied to solve the above problems is glass fiber! A base material component consisting of 5 to 10 parts by weight, 2 to 10 parts by weight of heat-resistant organic fiber, and 5 to 30 parts by weight of acicular or long columnar calcium metasilicate is 12 to 50% by weight, and the thermosetting resin component is 6 to 12 parts by weight. %, powder component 38-82% by weight.
ガラス繊維は市販されているチョプドガラス繊維を使用
でき、表面にフェノールレジンをコーティングしたもの
であればより好ましい、耐熱性有機ｕＡ雑は、例えばパ
ルプ状ポリパラフェニレンテレフタルアミド繊＃ｎ（例
、デュポン社製ケブラーパルプ）を使用する。針状又は
長柱状のカルシウムメタシリケートは、充分に高い耐熱
性（融点１５４０℃）がある、一般にウオラストナイト
とも呼ばれてβ型の結晶構造を有し、晶癖が玉斜晶系（
繊維状）で、アスペクト比（Ｌ／Ｄｌｔ）が３０以上の
ものが好ましい（例えばインドＷｏｌｋｅ−社製ケモリ
ット）、熱硬化性樹脂成分としては、例えばフェノール
系結合樹脂、エポキシ系樹脂、メラミン系樹脂などであ
る。粉末成分としては有機及び無機粉未配合剤で、例え
ばカシューダスト、グラファイト、金属硫化物、金属酸
化物、金属粉等で単数種または複数種混合して用いられ
る。As the glass fiber, a commercially available chopped glass fiber can be used, and it is more preferable that the surface is coated with phenol resin.As for the heat-resistant organic uA material, for example, pulp-like polyparaphenylene terephthalamide fiber #n (e.g., DuPont Co., Ltd.) can be used. Kevlar pulp) is used. Acicular or long columnar calcium metasilicate has sufficiently high heat resistance (melting point: 1540°C), is generally called wollastonite, has a β-type crystal structure, and has a crystal habit of globlinic (
It is preferable that the thermosetting resin component is fibrous) and has an aspect ratio (L/Dlt) of 30 or more (for example, Chemolit manufactured by Wolke, India). Examples of thermosetting resin components include phenolic binding resins, epoxy resins, and melamine resins. etc. The powder components include organic and inorganic powder-free agents, such as cashew dust, graphite, metal sulfides, metal oxides, metal powders, etc., which may be used singly or in combination.
高温（４００℃程度以上）では熱硬化性樹脂成分が劣化
して摩擦によりガラス繊維及び耐熱性有機繊維が脱落す
る傾向があり、また耐熱性有機繊維が溶融したり分解す
る傾向がある。しかし、基材の一部を構成するカルシウ
ムメタシリケートの結晶形状が針状又は長柱状でしかも
充分な耐熱性があるため、機械的な補強効果が維持され
、高温下の耐摩耗性が向上する。At high temperatures (approximately 400° C. or higher), the thermosetting resin component deteriorates and the glass fibers and heat-resistant organic fibers tend to fall off due to friction, and the heat-resistant organic fibers also tend to melt or decompose. However, because the crystal shape of calcium metasilicate, which forms part of the base material, is acicular or long columnar and has sufficient heat resistance, the mechanical reinforcing effect is maintained and wear resistance under high temperatures is improved. .
また、針状又は長柱状のカルシウムメタシリケートを添
加することにより、摩擦材表面に微小の気孔を多数形成
できるため、高温で摩擦したときに熱硬化性樹脂成分な
どが分解して発生するガスをすみやかに吸収するので、
耐フェード性が向上する。In addition, by adding acicular or long columnar calcium metasilicate, many microscopic pores can be formed on the surface of the friction material, which prevents gases generated by decomposition of thermosetting resin components when friction is applied at high temperatures. Because it absorbs quickly,
Improves fade resistance.
以下１本発明を適用するブレーキ用摩擦材を製造し、そ
の性俺試験をした実施例を詳細に説明する。Hereinafter, an example in which a brake friction material to which the present invention is applied was manufactured and its properties tested will be described in detail.
本発明のブレーキ用摩擦材は、従来から知られた、いわ
ゆるモールド法で製造できる。先ず所定量のガラス繊維
、耐熱性有機繊維およびカルシウムメタシリケートをよ
く混合する。この基材質成分とフェノール樹脂と有機及
び無機粉未配合剤を量ってＶ型混合機で約１５分間混合
する。その混合材料を加圧型内に入れ、常温のま−３０
０Ｋｇ／ｃｍ２で１分間加圧して予備成形する０次いで
この予＠成形物をホットプレス型に入し、１５５℃、３
００Ｋｇ／ｃｍ２で１０分間ホットプレスしてモールド
成形する。The brake friction material of the present invention can be manufactured by a conventionally known so-called molding method. First, predetermined amounts of glass fiber, heat-resistant organic fiber, and calcium metasilicate are thoroughly mixed. The base material components, phenolic resin, and organic and inorganic powder-free ingredients are weighed and mixed for about 15 minutes in a V-type mixer. Put the mixed material into a pressure mold and let it stand at room temperature for 30 minutes.
Pre-form by applying pressure at 0 kg/cm2 for 1 minute.Then, this pre-formed product was placed in a hot press mold and heated at 155°C for 3 minutes.
Molding is carried out by hot pressing at 00 kg/cm2 for 10 minutes.
モールド成形されたｙｌ襖ｕ１士２５０でで３■与曲執
槻理し、アフタキュアが完了する。それを平面研磨機で
所定の厚みに研磨してブレーキ用摩擦材が出来上がる。The molded fusuma U1 250 was used to complete the after-cure treatment. It is polished to a predetermined thickness using a surface polishing machine to complete the friction material for brakes.
下記の表の実施例１〜実施例３および比較例１〜比較例
３には、上記方法により試作した摩擦材の各成分の配合
組成（重量％）が示しである。実施例１〜実施例３は本
発明を適用した配合組成であり、比較例１〜比較例３は
本発明を適用外の配合組成である。Examples 1 to 3 and Comparative Examples 1 to 3 in the table below show the composition (wt%) of each component of the friction material prototyped by the above method. Examples 1 to 3 are formulations to which the present invention is applied, and Comparative Examples 1 to 3 are formulations to which the present invention is not applicable.
（以下余白）
配合組成表 （重量％）
ウオラストナイト１１０．ＷｏｌＫｅ鵬社製 ケモリッ
トトＢＯガ ラ ス繊維、、、、、 １１本硝子繊！Ｉ
Ｉ（株）製３躯■チョツプドグラスファイバー
耐熱性有機繊維０．６０、デュポン社製ケブラーパルプ
似下余白）
表の各個の配合によって得た摩擦材についてブレーキダ
イナモメータ試験機で、耐摩耗性能試験と耐フエード性
試験をした。(Left below) Composition table (wt%) Wollastonite 110. Chemolith BO glass fiber made by WolKeho Co., Ltd., 11 glass fibers! I
I Co., Ltd. 3-frame chopped glass fiber heat-resistant organic fiber 0.60, DuPont Kevlar pulp (bottom margin) The wear resistance performance of the friction materials obtained with each formulation in the table was measured using a brake dynamometer tester. Tests and fade resistance tests were conducted.
耐摩耗性試験の方法はＪＡＳＯ−Ｃ４２７−８３［ブレ
ーキ型式： ＰＤ５１ｇ 、 ロータ：１８■■ベンチ
レーテツドタイプ、イナーシア（負荷） ： ５．０
Ｋｇ１・Ｓ２］である。The abrasion resistance test method is JASO-C427-83 [brake model: PD51g, rotor: 18■■ventilated type, inertia (load): 5.0
Kg1・S2].
耐フエード性試験の方法はＪＡＳＯ−０４０６−８２［
ブレーキ型式： ＰＤ５１ｇ 、 ロータ： ｌｆｉｍ
ベンチレーテッドタイプ、イナーシア（負荷） ：
５．５Ｋｇ１・Ｓ２］である。The fade resistance test method is JASO-0406-82 [
Brake model: PD51g, rotor: lfim
Ventilated type, inertia (load):
5.5Kg1・S2].
耐摩耗性試験の結果は第１図のグラフに、耐フエード性
試験の結果は第２図のグラフに夫々示しである。尚、こ
れらの図に示された市販品ｌのグラフは、Ｓ社製の市販
品でアスベストを基材成分とするブレーキ用摩擦材につ
いて、同じ試験をした結果である。同じく市販品２のグ
ラフは、Ａ社製の市販品で金属繊維を基材成分に含むブ
レーキ用摩擦材についての試験結果である。The results of the abrasion resistance test are shown in the graph of FIG. 1, and the results of the fade resistance test are shown in the graph of FIG. 2. The graphs for commercial product 1 shown in these figures are the results of the same test on a commercial product manufactured by Company S, a brake friction material containing asbestos as a base material component. Similarly, the graph for Commercial Product 2 is a test result for a brake friction material made by Company A and containing metal fibers as a base material component.
第１図のグラフに示されるように、実施例１〜実施例３
の摩擦材は、比較例１〜比較例３の摩擦材と比べて摩耗
率が小さく（特に高温域で）、略市販品並の耐摩耗性が
ある。また、第２図のグラフに示されるように、実施例
１〜実施例３の摩擦材は、比較例１〜比較例３の摩擦材
は勿論、市販品と比較しても、制動回数を繰返した後の
一刊動中の最小摩擦係数の低下が少なく、耐フェード性
が優れている。As shown in the graph of FIG. 1, Examples 1 to 3
The friction material has a lower wear rate (especially in a high temperature range) than the friction materials of Comparative Examples 1 to 3, and has wear resistance approximately equal to that of commercially available products. In addition, as shown in the graph of Fig. 2, the friction materials of Examples 1 to 3 have a higher braking frequency than the friction materials of Comparative Examples 1 to 3 as well as commercially available products. There is little decrease in the minimum coefficient of friction during one movement after washing, and it has excellent fade resistance.
尚、剣状又は長柱状のカルシウムメタシリケートの配合
緘が５重量％未溝のときは、必要な材料強度が得られな
い、また３０重量％を越えると摩耗量が増大したり、必
要な摩擦係数が得られないという結果に終った。In addition, if the blend of sword-shaped or long columnar calcium metasilicate is 5% by weight without grooves, the required material strength cannot be obtained, and if it exceeds 30% by weight, the amount of wear may increase or the necessary friction may not be obtained. The result was that no coefficient could be obtained.
以上説明したように１本発明を適用したブレーキ用摩擦
材は、耐摩耗性は従来の市販品程度で実用性ｆ＠を充分
溝たし、耐フェード性は市販品より優れたものである。As explained above, the friction material for brakes to which the present invention is applied has wear resistance that is comparable to conventional commercially available products, which satisfies the practicality f@, and fade resistance that is superior to commercially available products.
しかも健康に有害で使用が制限されつ−あるアスベスト
を含んでいない、また、金属！Ｊ１１ｆｉｎを含ん〒い
ないので 壬もＬＭ齢いシいう利点がある。このように
本発明のブレーキ用摩擦材は要求に適合した優れたもの
である。Moreover, it does not contain asbestos, which is harmful to health and its use is being restricted, and it is also metal! Since it does not contain J11fin, it also has the advantage of being older than the LM. As described above, the brake friction material of the present invention is excellent in meeting the requirements.
第１図は耐摩耗性を示す図、第２図は耐フェード性を示
す図である。
特許出願人 アイシン化工株式会社
第１図
嗣 庁 耗ＩＦ生
制動前ブレーキ温度
第２図
耐フェードノ注
制勧回数FIG. 1 is a diagram showing wear resistance, and FIG. 2 is a diagram showing fade resistance. Patent applicant: Aisin Chemical Co., Ltd. Figure 1: Office Wear IF brake temperature before braking Figure 2: Recommended number of anti-fade injections
Claims (1)
０重量部と針状又は長柱状のカルシウムメタシリケート
５〜３０重量部からなる基材質成分が１２〜５０重量％
、熱硬化性樹脂成分６〜１２重量％、粉末成分３８〜８
２重量％を含有することを特徴とするブレーキ用摩擦材
。1. 5-10 parts by weight of glass fiber and 2-1 part of heat-resistant organic fiber
12 to 50% by weight of the base material component consisting of 0 parts by weight and 5 to 30 parts by weight of acicular or long columnar calcium metasilicate.
, thermosetting resin component 6-12% by weight, powder component 38-8%
A brake friction material characterized by containing 2% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5711386A JPS62215678A (en) | 1986-03-17 | 1986-03-17 | Friction material for brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5711386A JPS62215678A (en) | 1986-03-17 | 1986-03-17 | Friction material for brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62215678A true JPS62215678A (en) | 1987-09-22 |
Family
ID=13046470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5711386A Pending JPS62215678A (en) | 1986-03-17 | 1986-03-17 | Friction material for brake |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62215678A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01120446A (en) * | 1987-10-30 | 1989-05-12 | Aisin Chem Co Ltd | Friction material for brake |
| JPH0314929A (en) * | 1989-06-12 | 1991-01-23 | Toyota Motor Corp | Resin mold clutch facing |
-
1986
- 1986-03-17 JP JP5711386A patent/JPS62215678A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01120446A (en) * | 1987-10-30 | 1989-05-12 | Aisin Chem Co Ltd | Friction material for brake |
| JPH0314929A (en) * | 1989-06-12 | 1991-01-23 | Toyota Motor Corp | Resin mold clutch facing |
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