JPH03239784A - Friction material composition and manufacture of friction material therefrom - Google Patents
Friction material composition and manufacture of friction material therefromInfo
- Publication number
- JPH03239784A JPH03239784A JP3814190A JP3814190A JPH03239784A JP H03239784 A JPH03239784 A JP H03239784A JP 3814190 A JP3814190 A JP 3814190A JP 3814190 A JP3814190 A JP 3814190A JP H03239784 A JPH03239784 A JP H03239784A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- friction material
- binder
- mineral
- disc brake
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- 239000002783 friction material Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 6
- 239000011707 mineral Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010439 graphite Substances 0.000 claims abstract description 5
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 229910001369 Brass Inorganic materials 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229920000877 Melamine resin Polymers 0.000 abstract description 2
- 239000004760 aramid Substances 0.000 abstract description 2
- 229920006231 aramid fiber Polymers 0.000 abstract description 2
- 239000010951 brass Substances 0.000 abstract description 2
- 239000000378 calcium silicate Substances 0.000 abstract description 2
- 229910052918 calcium silicate Inorganic materials 0.000 abstract description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010445 mica Substances 0.000 abstract description 2
- 229910052618 mica group Inorganic materials 0.000 abstract description 2
- 239000005011 phenolic resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 2
- 239000010455 vermiculite Substances 0.000 abstract description 2
- 229910052902 vermiculite Inorganic materials 0.000 abstract description 2
- 235000019354 vermiculite Nutrition 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 239000004640 Melamine resin Substances 0.000 abstract 1
- 229920006282 Phenolic fiber Polymers 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 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
- 230000000052 comparative effect Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は自動車などの制動に用いられるディスクブレー
キパッド、ブレーキライニング等の摩擦材組成物及び該
組成物を用いた摩擦材の製造法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a friction material composition for disc brake pads, brake linings, etc. used for braking automobiles, etc., and a method for producing a friction material using the composition.
（従来の技術）
例えば自動車などの制動装置としてディスクブレーキが
使用され、その摩擦材としてディスクブレーキパッドが
使用されている。(Prior Art) For example, a disc brake is used as a braking device for an automobile, and a disc brake pad is used as a friction material.
現在のディスクブレーキパッド、％に非アスベスト系デ
ィスクブレーキパッドの主流は、スチール繊維を５０〜
６５重量％含有するセミメタリック系ディスクブレーキ
パッドである。このセミメタリックディスクブレーキパ
ッドは、特にオートマチック車に装着した場合、停止及
び発進時にグー音と称する異音が発生し、さらに制動時
に生じる摩耗粉にようホイール汚れがある。このため最
近は、金属繊維の含有率がよう少ない新規な材質の開発
が進められている。Current disc brake pads, the mainstream of non-asbestos disc brake pads, are made of steel fibers with a content of 50% to 50%.
This is a semi-metallic disc brake pad containing 65% by weight. Particularly when this semi-metallic disc brake pad is installed in an automatic vehicle, it produces an abnormal noise called a goo when stopping and starting, and furthermore, the wear particles generated during braking cause wheel stains. For this reason, efforts have recently been made to develop new materials with very low metal fiber content.
（発明が解決しようとする課題）
しかしながらディスクブレーキパッドの強度上の問題が
あるため極端に金属繊維を減らすことができない。この
ためディスクロータとディスクブレーキパッドに合資れ
る金属繊維との凝着現象によう発生するものと考えられ
る異音を防止することができないのが現状である。(Problems to be Solved by the Invention) However, due to problems with the strength of the disc brake pad, it is not possible to reduce the amount of metal fibers to an extreme degree. For this reason, it is currently impossible to prevent abnormal noises that are thought to be generated due to the adhesion phenomenon between the disc rotor and the metal fibers that are incorporated into the disc brake pad.
本発明は上記の事情に鑑みて、異音を防止ないしは減少
させるための摩擦材組成物及び該組成物を用いた摩擦材
の製造法を提供することを目的とするものである。In view of the above circumstances, an object of the present invention is to provide a friction material composition for preventing or reducing abnormal noise, and a method for producing a friction material using the composition.
（課題を解決するための手段）
本発明は金属繊維、有機繊維、無機繊維及び結合剤を含
み、かつ全組成物中に黒鉛を２〜１０重！＃係及び層間
で劈開し易い板状構造の鉱物を１〜２５重＋ｉ悌含有せ
しめてなる摩擦材組成物に関し。(Means for Solving the Problems) The present invention contains metal fibers, organic fibers, inorganic fibers, and a binder, and contains 2 to 10 parts of graphite in the entire composition! The present invention relates to a friction material composition containing 1 to 25 times more of a plate-like mineral that is easily cleaved between layers.
さらに上記の摩擦材組成物を混合した後加熱加圧成形し
９次いで焼成する摩擦材の製造法に関する。Furthermore, the present invention relates to a method for manufacturing a friction material, which comprises mixing the above-mentioned friction material composition, molding under heat and pressure, and then firing.
本発明に釦いて金属繊維としては、銅繊維、黄銅繊維、
スチール繊維等が用いられ、有機繊維としては、アラミ
ド繊維、フェノール繊維等が用いられ、また無機繊維と
しては、ケイ酸カルシウム繊維、アルミナ・シリカ繊維
等が用いられる。Metal fibers according to the present invention include copper fibers, brass fibers,
Steel fibers and the like are used, aramid fibers, phenol fibers, etc. are used as organic fibers, and calcium silicate fibers, alumina/silica fibers, etc. are used as inorganic fibers.
これらの繊維は、全組成物中に金属繊維が２０重量多以
下、有機繊維及び無機繊維が４０重重量板下含有するこ
とが好ましい。It is preferable that the total composition of these fibers contains metal fibers in an amount of 20% by weight or less, and organic fibers and inorganic fibers in a content of 40% by weight or less.
結合剤としては、フェノール樹脂、メラミン樹脂等の熱
硬化性樹脂が用いられる。As the binder, thermosetting resins such as phenol resins and melamine resins are used.
層間で劈開し易い板状構造の鉱物としては、マイカ、バ
ーミキュライト等が用いられ、これらは全組成物中に１
〜２５重量優重量金含有ことが必要とされ、１重ｆｉ％
未満では異音が大きくなるという欠点が生じ、２５重ｆ
ｆｉ％を越えると機械的強度が低下するという欠点が生
じる。Mica, vermiculite, etc. are used as minerals with a plate-like structure that are easy to cleave between layers, and these are present in a proportion of 1 in the entire composition.
~25% by weight gold content is required, with 1% by weight
If it is less than 25 f
If it exceeds fi%, there will be a drawback that the mechanical strength will decrease.
黒鉛は、全組成物中に２〜１０Ｍ１１％含有させること
が必要とされ、２重量ｔ％未満であるとディスクブレー
キパッド及びディスクロータの寿命が著しく低下し、１
０重量優を越えると異音が大きくなるという欠点が生じ
る。Graphite is required to be contained in the total composition at 2 to 10M 11%, and if it is less than 2% by weight, the life of the disc brake pad and disc rotor will be significantly reduced.
If the weight exceeds 0 weight, there will be a drawback that abnormal noise will become louder.
本発明の摩擦材組成物は、上記成分の他に必要に応じ硫
酸バリウム、炭酸マグネシウム、炭酸カルシウム、アル
ミナ、シリカ等の無機充填剤、カーボンブラック、フリ
クションダスト、コークス等の摩擦調整剤などが用いら
れる。In addition to the above components, the friction material composition of the present invention may optionally contain inorganic fillers such as barium sulfate, magnesium carbonate, calcium carbonate, alumina, and silica, and friction modifiers such as carbon black, friction dust, and coke. It will be done.
摩擦材組成物の混合方法、加熱加圧成形条件については
特に制限はなく、従来公知の方法で行うものとする。There are no particular restrictions on the method of mixing the friction material composition and the conditions for hot-pressing molding, and conventionally known methods may be used.
（実施例） 以下本発明の詳細な説明する。(Example) The present invention will be explained in detail below.
実施例１〜４．比較例１
第１表に示す成分を配合し、混合機により均一に混合し
たのち電気オーブン中で８２．５±２．５℃で２時間乾
燥し、その後粉砕して成形粉とし２次いでタブレットを
形成し、その後温度１５ｚ５士２、．５℃、圧力５００
ｋｇ／ｃｍ２の条件で５分熱圧成形し、さらに２００
℃で５時間焼成してディスクブレーキパッドを得た。Examples 1-4. Comparative Example 1 The ingredients shown in Table 1 were blended, mixed uniformly with a mixer, dried in an electric oven at 82.5±2.5°C for 2 hours, and then crushed to form a molded powder. Formed, then heated to 15°C and 2°C. 5℃, pressure 500
kg/cm2 for 5 minutes, and then 200 kg/cm2.
A disc brake pad was obtained by baking at ℃ for 5 hours.
次に本発明になる摩擦材組成物を用いたディスクブレー
キパッドと従来（比較例１）のディスクブレーキパッド
とを実際の車に装着し、異音の発生状態の比較試験を行
った。その結果を第２表に示す。な釦第２表において、
ならし走行１００１ａｎ後とあるのは制度初速度６０ｋ
ｍ／時間、減速度０、３ Ｇで２回／ｌｋｍの比率でブ
レーキをかけ１０〇−走行した後測定したものであり、
ｆた水濡れ後というのはディスクブレーキパッド及び相
手材ディスクに充分水をかけ、その１１３０分間放置し
た後測定したものである。Next, a disc brake pad using the friction material composition of the present invention and a conventional disc brake pad (Comparative Example 1) were mounted on an actual car, and a comparison test was conducted to determine the noise generation state. The results are shown in Table 2. In the second table of buttons,
The system initial speed is 60k after 1001an of break-in.
m/hour, deceleration 0, 3G, brakes applied at a rate of 2 times/lkm, measured after driving for 100 hours.
"After wetting with water" refers to measurements taken after sufficiently watering the disc brake pad and the mating disc and leaving them for 1130 minutes.
異音レベル５段階
５、 ４． ３． ２． １
小 犬
試験条件
０テスト車：２０００ｃｃオ一トマチツク車０車両総重
量：１６００ｋｇ
０ブレ一キ型式：コレットタイプ
（シリンダ面積２８ａｕ”）
Ｏディスパラド面積： ５０ ｃｍ”
第２表から明らかなように本発明になる摩擦材組成物を
用いたディスクブレーキパッドは、従来のディスクブレ
ーキパッドに比較して異音の小さいことがわかる。Abnormal noise level 5 levels 5, 4. 3. 2. 1 Small dog test conditions 0 Test vehicle: 2000cc automatic vehicle 0 Gross vehicle weight: 1600 kg 0 Brake type: Collet type (cylinder area 28 au") O Disparado area: 50 cm" As is clear from Table 2 It can be seen that the disc brake pad using the friction material composition of the invention produces less abnormal noise than the conventional disc brake pad.
本発明ではディスクブレーキパッドに適用した場合につ
いて説明したが、ブレーキライニングなどの他の摩擦材
についても同様の効果が得られる。Although the present invention has been described for the case where it is applied to a disc brake pad, similar effects can be obtained with other friction materials such as brake linings.
（発明の効果）
本発明によれば、異音を防止ないしは減少させた摩擦材
を得ることができ、また上記の効果を有する摩擦材を提
供する摩擦材組成物を得ることができる。(Effects of the Invention) According to the present invention, it is possible to obtain a friction material that prevents or reduces abnormal noise, and it is also possible to obtain a friction material composition that provides a friction material having the above-mentioned effects.
Claims (1)
かつ全組成物中に黒鉛を２〜１０重量％及び層間で劈開
し易い板状構造の鉱物を１〜２５重量％含有せしめてな
る摩擦材組成物。 ２、請求項１記載の摩擦材組成物を混合した後加熱加圧
成形し、次いで焼成することを特徴とする摩擦材の製造
法。[Claims] 1. Contains metal fibers, organic fibers, inorganic fibers and a binder,
A friction material composition comprising 2 to 10% by weight of graphite and 1 to 25% by weight of a mineral with a plate-like structure that is easily cleaved between layers. 2. A method for producing a friction material, which comprises mixing the friction material composition according to claim 1, then heating and press-molding the mixture, and then firing it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3814190A JPH03239784A (en) | 1990-02-19 | 1990-02-19 | Friction material composition and manufacture of friction material therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3814190A JPH03239784A (en) | 1990-02-19 | 1990-02-19 | Friction material composition and manufacture of friction material therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03239784A true JPH03239784A (en) | 1991-10-25 |
Family
ID=12517139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3814190A Pending JPH03239784A (en) | 1990-02-19 | 1990-02-19 | Friction material composition and manufacture of friction material therefrom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03239784A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09194822A (en) * | 1996-01-22 | 1997-07-29 | Nissan Motor Co Ltd | Wet friction material |
| JP2008143937A (en) * | 2006-12-06 | 2008-06-26 | Akebono Brake Ind Co Ltd | Non-asbestos-based friction material |
| CN103629281A (en) * | 2013-11-15 | 2014-03-12 | 宁国飞鹰汽车零部件股份有限公司 | Ceramic high-performance disc brake pad for bus and manufacturing method thereof |
| KR20170097645A (en) | 2014-12-12 | 2017-08-28 | 닛신보 브레이크 가부시키가이샤 | Friction material |
-
1990
- 1990-02-19 JP JP3814190A patent/JPH03239784A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09194822A (en) * | 1996-01-22 | 1997-07-29 | Nissan Motor Co Ltd | Wet friction material |
| JP2008143937A (en) * | 2006-12-06 | 2008-06-26 | Akebono Brake Ind Co Ltd | Non-asbestos-based friction material |
| CN103629281A (en) * | 2013-11-15 | 2014-03-12 | 宁国飞鹰汽车零部件股份有限公司 | Ceramic high-performance disc brake pad for bus and manufacturing method thereof |
| KR20170097645A (en) | 2014-12-12 | 2017-08-28 | 닛신보 브레이크 가부시키가이샤 | Friction material |
| US10865844B2 (en) | 2014-12-12 | 2020-12-15 | Nisshinbo Brake, Inc. | Friction material |
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