JPS62258235A - Non-asbestine friction material - Google Patents
Non-asbestine friction materialInfo
- Publication number
- JPS62258235A JPS62258235A JP10208486A JP10208486A JPS62258235A JP S62258235 A JPS62258235 A JP S62258235A JP 10208486 A JP10208486 A JP 10208486A JP 10208486 A JP10208486 A JP 10208486A JP S62258235 A JPS62258235 A JP S62258235A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- asbestos
- fibers
- weight
- fibrous base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002783 friction material Substances 0.000 title claims abstract description 39
- 239000000835 fiber Substances 0.000 claims abstract description 78
- 239000010425 asbestos Substances 0.000 claims abstract description 45
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 31
- 239000010440 gypsum Substances 0.000 claims description 21
- 229910052602 gypsum Inorganic materials 0.000 claims description 21
- 239000000945 filler Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- 239000003607 modifier Substances 0.000 claims description 8
- 239000011490 mineral wool Substances 0.000 claims description 6
- 229920003043 Cellulose fiber Polymers 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 abstract description 5
- 238000013329 compounding Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 239000011505 plaster Substances 0.000 abstract 6
- KNXVOGGZOFOROK-UHFFFAOYSA-N trimagnesium;dioxido(oxo)silane;hydroxy-oxido-oxosilane Chemical compound [Mg+2].[Mg+2].[Mg+2].O[Si]([O-])=O.O[Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O KNXVOGGZOFOROK-UHFFFAOYSA-N 0.000 abstract 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 244000226021 Anacardium occidentale Species 0.000 description 4
- 235000020226 cashew nut Nutrition 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229910052981 lead sulfide Inorganic materials 0.000 description 2
- 229940056932 lead sulfide Drugs 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920002647 polyamide Polymers 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
- 241001164374 Calyx Species 0.000 description 1
- 240000006394 Sorghum bicolor Species 0.000 description 1
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 1
- 235000009430 Thespesia populnea Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明はブレーキ用非石綿系摩擦材料に関し、特に成形
性の向上を図ったブレーキ用非石綿系摩擦擦材料に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a non-asbestos friction material for brakes, and particularly to a non-asbestos friction material for brakes with improved moldability.
［従来の技術・問題点］
従来より、ブレーキ用摩擦材料として、石綿繊維、及び
石綿繊維代替繊維としてガラス繊維、岩綿繊維、スチー
ル繊維及びポリアミド繊維等の繊維状基材を主成分とし
、これに合成樹脂をバインダーとして使用して成形した
成形品が多数提唱されている。[Conventional technology/problems] Conventionally, friction materials for brakes have been mainly composed of fibrous base materials such as asbestos fibers and asbestos fiber substitute fibers such as glass fibers, rock wool fibers, steel fibers, and polyamide fibers. Many molded products have been proposed using synthetic resin as a binder.
しかし、ブレーキ用摩擦材料の繊維状基材として優れた
特性をもつ石綿繊維は粉塵等の人体に対する有害性から
５近年使用の制限や製造工程での粉塵対策の規制が強化
されており、石綿繊維に代わる繊維状基材が検討されて
いる。However, asbestos fiber, which has excellent properties as a fibrous base material for friction materials for brakes, is harmful to the human body due to dust etc. In recent years, restrictions on its use and regulations on dust countermeasures in the manufacturing process have been strengthened, and asbestos fiber Fibrous base materials to replace these are being considered.
石綿繊維代替繊維としては上述の１ａ維状基材が現在提
唱されている。しかし、上述の繊維状基材をブレーキ用
摩擦材料に使用すると以下に記載するような問題点を生
ずる：
■ガラス繊維及び岩綿繊維等は柔軟性に欠けるためにブ
レーキ用摩擦材料への成形が難しい。The above-mentioned 1a fibrous base material is currently proposed as an alternative fiber to asbestos fiber. However, when the above-mentioned fibrous base material is used as a friction material for brakes, the following problems occur: ■Glass fibers, rock wool fibers, etc. lack flexibility, making it difficult to mold them into friction materials for brakes. difficult.
■スチール繊維を用いた場合には熱伝導性が良すぎるた
めに、制動時に発生する熱がブレーキ液を加熱して不都
合を生ずる等の問題を有する。(2) When steel fibers are used, their thermal conductivity is too good, causing problems such as the heat generated during braking heating the brake fluid and causing problems.
■スチール繊維は錆の問題を有する。■Steel fibers have the problem of rust.
■ポリアミド繊維を用いると成形性は向上するが、摩擦
材料構成成分を混合する時に開繊し難く且つ高価である
等の問題を有する。(2) Use of polyamide fibers improves moldability, but has problems such as being difficult to open when mixing friction material components and being expensive.
［問題点を解決するための手段］
本発明者らはブレーキ用非石綿系摩擦材料にこれまで使
用されてきた上述の石綿繊維代替繊維の問題点を解消す
べく鋭意研究の結果、繊維状基材として石膏繊維を単独
でまたは石膏繊維をこれまで使用されてきた石綿繊維代
替繊維と併用して使用することによって良好なブレーキ
用非石綿系摩擦材料が得られることを知見し、本発明を
完成するに至った。[Means for Solving the Problems] The present inventors have conducted intensive research to solve the problems of the above-mentioned asbestos fiber alternative fibers that have been used in non-asbestos friction materials for brakes. The present invention was completed based on the discovery that a good non-asbestos-based friction material for brakes can be obtained by using gypsum fiber alone or in combination with asbestos fiber substitute fibers that have been used up until now. I ended up doing it.
従って、本発明は繊維状基材、潤滑成分、充填剤、摩擦
調整剤及びバインダーを主成分とするブレーキ用非石綿
系摩擦材料において、繊維状基材が石膏繊維または石膏
繊維、ガラス繊維、Ｐ、Ｍ、Ｆ−岩綿繊維、カーボン繊
維、チタン酸力り繊維、セルロース繊維、セラミックス
繊維及びカイノールよりなる群より選択された１種また
は２種以上の石綿繊維代替繊維よりなり、繊維状基材含
量が最終ブレーキ用非石綿系摩擦材を基準として１０〜
６５重量％であり、繊維状基材中の石膏繊維含量が最終
ブレーキ用非石綿系摩擦材料を基準として１０〜５０重
量％であることを特徴とするブレーキ用非石綿系摩擦材
料を提供するにある。Therefore, the present invention provides a non-asbestos-based friction material for brakes which has a fibrous base material, a lubricating component, a filler, a friction modifier, and a binder as main components, in which the fibrous base material is gypsum fiber, gypsum fiber, glass fiber, P. , M, F - A fibrous base material consisting of one or more asbestos fiber alternative fibers selected from the group consisting of rock wool fibers, carbon fibers, titanate fibers, cellulose fibers, ceramic fibers, and kynols. The content is 10~ based on the non-asbestos friction material for final brakes.
65% by weight, and the gypsum fiber content in the fibrous base material is 10 to 50% by weight based on the final non-asbestos friction material for brakes. be.
［作 用］
本発明のブレーキ用非石綿系摩擦材料は繊維状基材に石
膏繊維を単独でまたは石膏繊維とガラスｔｌｌｉ、 Ｐ
、Ｍ、Ｆ、岩綿側Ｌカーボン繊維、チタン酸カリ繊維、
セルロース繊維、セラミックス繊維及びカイノール等よ
りなる群より選択された１種または２種以上の石綿繊維
代替繊維を併用して使用し、この繊維状基材に潤滑成分
、充填剤及び摩擦調整剤を配合してなる混合物にバイン
ダーを加え、加熱成形することによって製造することが
できる。[Function] The non-asbestos-based friction material for brakes of the present invention includes gypsum fiber alone or gypsum fiber and glass tlli, P on a fibrous base material.
, M, F, rock wool side L carbon fiber, potassium titanate fiber,
One or more types of asbestos fiber substitute fibers selected from the group consisting of cellulose fibers, ceramic fibers, kynor, etc. are used in combination, and a lubricant component, filler, and friction modifier are blended into this fibrous base material. It can be manufactured by adding a binder to a mixture formed by adding a binder and heat-molding the mixture.
本発明に使用する繊維状基材は摩擦材料の強度を保ち、
成形性を良好にする役割を果たすものである。繊維状基
材としては石膏繊維を単独でまたは石膏繊維と石綿繊維
代替繊維を併用して使用することができる０本発明に使
用できる石綿繊維代替繊維としてはガラス繊維、Ｐ、Ｍ
、Ｆ、岩綿繊維、カーボン側しチタン酸カリ側Ｌセルロ
ース繊維、セラミックス繊維及びカイノール等を挙げる
ことができる。これらの石綿繊維代替繊維は１種または
２種以上を併用することができる。繊維状基材中の石膏
繊維の添加配合量は最終ブレーキ用非石綿系摩擦材料を
基準として１−０〜５０重量％である。また、繊維状基
材の合計添加配合量（石膏繊維と石綿繊維代替繊維を併
用する場合）は最終ブレーキ用非石綿系摩擦材料を基準
として１０〜６５重量％である。また、石綿繊維代替繊
維の添加配合量は最終ブレーキ用非石綿系摩擦材料を基
準として３〜１５重量％の範囲であることができる。繊
維状基材の合計添加配合量が１０重量９６未満であると
材質補強効果が不充分であるために好ましくなく、また
６５重量％を超えると混合ボリュームが大き過ぎるため
に好ましくない、また、石膏繊維の添加配合量が１０重
量％未満または５０重量％を超えると成形性に問題を生
ずるために好ましくない、なお、本発明のブレーキ用非
石綿系摩擦材料に使用することが好適な繊維状基材の好
適組成の１例としては最終ブレーキ用非石綿系摩擦材料
を基準としてガラス繊維３〜１５重量％及び石膏繊維１
０〜５０重量％からなる繊維状基材を挙げることができ
る０本発明で用いる石膏繊維は直径が１〜２０μ、長さ
が１００μ〜３論翔のα型半水石膏を４００℃以上に加
熱して安定性を向上した石膏繊維である。The fibrous base material used in the present invention maintains the strength of the friction material,
This serves to improve moldability. As the fibrous base material, gypsum fibers can be used alone or in combination with gypsum fibers and asbestos fiber substitute fibers.Asbestos fiber substitute fibers that can be used in the present invention include glass fiber, P, and M.
, F, rock wool fiber, carbon side and potassium titanate side L cellulose fiber, ceramic fiber, and kynol. These asbestos fiber substitute fibers can be used alone or in combination of two or more. The amount of gypsum fiber added to the fibrous base material is 1-0 to 50% by weight based on the non-asbestos friction material for the final brake. Further, the total amount of the fibrous base material added (when gypsum fiber and asbestos fiber substitute fiber are used together) is 10 to 65% by weight based on the non-asbestos friction material for the final brake. Further, the amount of the asbestos fiber substitute fiber added may be in the range of 3 to 15% by weight based on the non-asbestos friction material for the final brake. If the total addition amount of the fibrous base material is less than 10% by weight, it is not preferable because the material reinforcing effect is insufficient, and if it exceeds 65% by weight, it is not preferable because the mixing volume is too large. If the amount of added fiber is less than 10% by weight or more than 50% by weight, it is not preferable because it will cause problems in moldability. One example of a suitable composition of the material is 3 to 15% by weight of glass fiber and 1 part of gypsum fiber based on the non-asbestos friction material for final brakes.
Examples include fibrous base materials consisting of 0 to 50% by weight. The gypsum fibers used in the present invention are α-type hemihydrate gypsum with a diameter of 1 to 20 μm and a length of 100 μ to 3 μm heated to 400° C. or higher. This is a gypsum fiber with improved stability.
本発明に使用する潤滑成分は相手材と摩擦材料との界面
において、安定した摩擦作用を起こ５せ、摩擦時に発生
する摺動音である「鳴きＪを除去する役割をもつもので
ある。潤滑成分としては黒鉛及び／または二硫化モリブ
デン等を使用できる。潤滑成分の添加配合量は最終ブレ
ーキ用非石綿系摩擦材料を基準として１〜１５重量％で
ある。潤滑成分の添加配合量が１重皿％未満であるとブ
レーキ鳴きを抑制できないために好ましくなく、また、
１５重量％を超えると摩擦係数の低下があるために好ま
しくない。The lubricant component used in the present invention has the role of causing a stable frictional action at the interface between the mating material and the friction material, and eliminating "squeal J", which is the sliding sound generated during friction. As a component, graphite and/or molybdenum disulfide, etc. can be used.The amount of the lubricant added is 1 to 15% by weight based on the non-asbestos friction material for the final brake. If it is less than %, it is not preferable because brake squeal cannot be suppressed, and
If it exceeds 15% by weight, the coefficient of friction decreases, which is not preferable.
本発明に使用する充填剤は増量効果を目的とするもので
、硫酸バリウム、マイカ等から選択される。充填剤の添
加配合量は最終ブレーキ用非石綿系摩擦材料を基準とし
て硫酸バリウム１〜１５重量％及びマイカ１〜１５重量
％である。おのおのの充填剤の添加配合量が１重量％未
満である場合には増量効果がないために好ましくなく、
また、おのおのの充填剤の添加配合量が１５重量％を超
えると耐摩耗性が悪くなるために好ましくない。The filler used in the present invention is intended for bulking effect and is selected from barium sulfate, mica, and the like. The amount of fillers added is 1 to 15% by weight of barium sulfate and 1 to 15% by weight of mica, based on the final non-asbestos friction material for brakes. If the amount of each filler added is less than 1% by weight, it is not preferable because there is no increase in weight.
Furthermore, if the amount of each filler added exceeds 15% by weight, it is not preferable because the wear resistance deteriorates.
また、本発明に使用する摩擦調整剤は摩擦係数を若干高
めて安定させる役割をなすものである。Further, the friction modifier used in the present invention serves to slightly increase and stabilize the friction coefficient.
摩擦調整剤はカシューダスト、ゴム粉末、硫化鉛、酸化
鋼、酸化クロム、金属粉等から選択することができる。The friction modifier can be selected from cashew dust, rubber powder, lead sulfide, steel oxide, chromium oxide, metal powder, and the like.
摩擦調整剤の最終ブレーキ用非石綿系摩擦材料を基準と
する添加配合量はカシューダストでは５〜１５重量％、
ゴム粉末では１〜５重量％、硫化鉛では５〜１５重量％
、酸化鋼では５〜１０重量％、酸化クロムでは１〜５重
量％、金属粉では５〜２０重量％である。The amount of friction modifier added based on the non-asbestos friction material for final brakes is 5 to 15% by weight for cashew dust.
1-5% by weight for rubber powder, 5-15% by weight for lead sulfide
, 5 to 10% by weight for oxidized steel, 1 to 5% by weight for chromium oxide, and 5 to 20% by weight for metal powder.
バインダーと１．ではフェノール系樹脂、エポキシ樹脂
などを使用することができる。バインダーの添加配合量
は最終ブレーキ用非石綿系摩擦材料を基準として５〜１
５重量％である。Binder and 1. In this case, phenolic resin, epoxy resin, etc. can be used. The amount of binder added is 5-1 based on the non-asbestos friction material for final brakes.
It is 5% by weight.
例えば、上述の繊維状基材、潤滑成分、充填剤、摩擦調
整剤及びバインダーを高速撹拌羽根を有する混合機で約
１０分間混合した後、一定量を図り取り１６０±５℃の
温度、１８０ ｋｇ／ ｃｍ”の圧力条件下で成形し、
その後１８０°Ｃで約８時間焼成することによってブレ
ーキ用非石綿系摩擦材料に成形することができる。For example, after mixing the above-mentioned fibrous base material, lubricating component, filler, friction modifier, and binder in a mixer with high-speed stirring blades for about 10 minutes, a certain amount is measured and mixed at a temperature of 160±5°C and 180 kg. /cm” pressure condition,
Thereafter, by baking at 180° C. for about 8 hours, it can be molded into a non-asbestos friction material for brakes.
［実 施 例］
以下の第１表に記載する組成をもつブレーキ用非石綿系
摩擦材料を作成した。なお、試料Ａ及びＢは本発明品で
あり、試料Ｃは比較品である。[Example] A non-asbestos friction material for brakes having the composition shown in Table 1 below was prepared. Note that Samples A and B are products of the present invention, and Sample C is a comparative product.
［Ｕ〜東 （重量％）
試 料 ＡＢＣ石膏繊維
２５ ４０
ガラス繊維 １５ １５フエノール
樹脂 １３ １３ １３潤滑成分（り′ツア
、イト＞ １２ １２ １２
摩擦調整剤（カシュータ゛スト）１５ １５ １５
充填剤（硫酸バリウム、マイロ）２０ ２０
４５第１表に示す配合割合をもつ試料Ａ、Ｂ及
びＣを熱ブレス金型温度１６０℃、熟プレス圧力１８０
ｋｇ／ ａｍ”、熱プレス時間１０分間、後焼成温度
１８０℃、焼成時間８時間の成形条件を使用してブレー
キ用非石綿系摩擦材料に成形した。[U~East (wt%) Sample ABC gypsum fiber
25 40 Glass fiber 15 15 Phenol resin 13 13 13 Lubricant component
Friction modifier (cashew paste) 15 15 15
Filler (barium sulfate, milo) 20 20
45 Samples A, B, and C having the compounding ratios shown in Table 1 were heated in a hot press mold at a temperature of 160°C and at a pressure of 180°C.
The material was molded into a non-asbestos-based friction material for brakes using the following molding conditions: 10 minutes of heat pressing, 180° C. post-firing temperature, and 8 hours of sintering time.
得られた試料Ａ、Ｂ及びＣを比較すると、試料Ａ及びＢ
は微粉末の抱き込み性が向上しており、試料Ｃよりも混
合原料の分離が少なかった。また、試料Ａ及びＢは試料
Ｃと比較して混合原料に柔軟性があり、成形性が良好で
あった。Comparing the obtained samples A, B and C, samples A and B
Sample C had improved entrainment of fine powder, and there was less separation of mixed raw materials than Sample C. In addition, Samples A and B had more flexibility in the mixed raw materials and better moldability than Sample C.
上述の試料Ａ、Ｂ及び石綿系の従来の摩擦材料について
定速摩擦性能試験（ＪＩＳ Ｄ４４１１）を実施した
。この結果、試験Ａ及びＢは石綿系摩擦材料とほぼ同じ
レベルの中擦特性をもち安定していた。A constant speed friction performance test (JIS D4411) was conducted on the above-mentioned samples A and B and asbestos-based conventional friction materials. As a result, Tests A and B were found to have stable neutral friction properties at approximately the same level as asbestos-based friction materials.
また、ダイナモ台上試験機で四輪自動車のフロントディ
スクブレーキシステムを使用して試料Ａ及び石綿系摩擦
材料の性能試験を実施した。ディスクバットの当りが充
分についた後の効力特性の試験結果を図に要約する０図
より明らかなように、石綿系摩擦材料に比較して試料Ｂ
は効力が高く安定していた。In addition, a performance test was conducted on Sample A and the asbestos-based friction material using a dynamo bench testing machine using a front disc brake system of a four-wheeled vehicle. As is clear from Figure 0, which summarizes the test results of the effectiveness characteristics after the disk bat has sufficiently hit the surface, Sample B
was highly effective and stable.
次に、石膏繊維の使用範囲について実験を試みた。Next, we conducted an experiment to determine the range of use of gypsum fiber.
第２表に示す組成をもつブレーキ用非石綿系摩擦材料り
及びＥを作成した。A non-asbestos friction material for brakes and E having the composition shown in Table 2 was prepared.
第ニーじこ−ユ＾−（重量％）
］ ＤＥ
石膏繊維 ９ ５１
ガラス繊維 １５ １４
フエノール樹脂 １３ １３
潤滑成分（り゛テフ、イト） １５
６摩擦調整斉Ｉ（カシュータ゛スト） １８
６充填＊Ｊ（硫酸＾゛リウムマイカ）３０
１０上記配合をもつＤ及びＥを混合した結果
、試料りは混合原料の柔軟性に欠け、成形性が許容でき
ないものであった、また、試料Ｅは混合原料は柔軟性が
良好であるものの、性能試験の結果、耐摩擦性能が劣る
ために好ましくない、成形性、性能試験の結果等から、
石膏繊維の許容範囲は１０〜５０重量％であることが判
明した。No. 1 (wt%)] DE Gypsum fiber 9 51 Glass fiber 15 14 Phenol resin 13 13 Lubricant component (Retefu) 15
6 Friction Adjustment I (Cashew Cast) 18
6 fillings *J (sulfuric acid ﾂdium mica) 30
10 As a result of mixing D and E having the above formulation, the sample sample lacked the flexibility of the mixed raw material and the moldability was unacceptable.Also, the sample E had good flexibility in the mixed raw material, but As a result of the performance test, it is unfavorable due to poor friction resistance, and the result of the moldability and performance test, etc.
The acceptable range for gypsum fibers was found to be 10-50% by weight.
［発明の効果］
本発明のブレーキ用非石綿系摩擦材料は石膏繊維を含有
しているので、成形性が良好であり、また、従来の石綿
系摩擦材料と同等か、それ以上の摩擦性能を得ることが
できる。[Effects of the Invention] Since the non-asbestos friction material for brakes of the present invention contains gypsum fiber, it has good moldability and has friction performance equal to or better than conventional asbestos friction materials. Obtainable.
図はディスクバットの当りが充分についた後の効力特性
を示すグラフ図である。
特許出願人 朝日石綿工業株式会社
東！１萼帰ミThe figure is a graph showing the effectiveness characteristics after the disc bat has been sufficiently hit. Patent applicant Asahi Asbestos Industries Co., Ltd. Higashi! 1 calyx return
Claims (1)
ンダーを主成分とするブレーキ用非石綿系摩擦材料にお
いて、繊維状基材が石膏繊維または石膏繊維、ガラス繊
維、Ｐ．Ｍ．Ｆ、岩綿繊維、カーボン繊維、チタン酸カ
リ繊維、セルロース繊維、セラミックス繊維及びカイノ
ールよりなる群より選択された１種または２種以上の石
綿繊維代替繊維よりなり、繊維状基材含量が最終ブレー
キ用非石綿系摩擦材を基準として１０〜６５重量％であ
り、繊維状基材中の石膏繊維含量が最終ブレーキ用非石
綿系摩擦材料を基準として１０〜５０重量％であること
を特徴とするブレーキ用非石綿系摩擦材料。In a non-asbestos friction material for brakes, the main components of which are a fibrous base material, a lubricating component, a filler, a friction modifier, and a binder, the fibrous base material is gypsum fiber, gypsum fiber, glass fiber, P.I. M. F, consisting of one or more types of asbestos fiber alternative fibers selected from the group consisting of rock wool fibers, carbon fibers, potassium titanate fibers, cellulose fibers, ceramic fibers, and kynols, and the fibrous base material content is the final brake. The content of gypsum fiber in the fibrous base material is 10 to 50% by weight based on the non-asbestos friction material for final brakes. Non-asbestos friction material for brakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10208486A JPS62258235A (en) | 1986-05-06 | 1986-05-06 | Non-asbestine friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10208486A JPS62258235A (en) | 1986-05-06 | 1986-05-06 | Non-asbestine friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62258235A true JPS62258235A (en) | 1987-11-10 |
Family
ID=14317908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10208486A Pending JPS62258235A (en) | 1986-05-06 | 1986-05-06 | Non-asbestine friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62258235A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02269149A (en) * | 1989-04-08 | 1990-11-02 | Nisshinbo Ind Inc | Heat-resistant friction material |
| WO1992011337A1 (en) * | 1990-12-21 | 1992-07-09 | Australian Brake Manufacturers Pty. Limited | Asbestos free friction material |
-
1986
- 1986-05-06 JP JP10208486A patent/JPS62258235A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02269149A (en) * | 1989-04-08 | 1990-11-02 | Nisshinbo Ind Inc | Heat-resistant friction material |
| WO1992011337A1 (en) * | 1990-12-21 | 1992-07-09 | Australian Brake Manufacturers Pty. Limited | Asbestos free friction material |
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