JP2000256651A - Friction material composition and friction material prepared therefrom - Google Patents
Friction material composition and friction material prepared therefromInfo
- Publication number
- JP2000256651A JP2000256651A JP11061519A JP6151999A JP2000256651A JP 2000256651 A JP2000256651 A JP 2000256651A JP 11061519 A JP11061519 A JP 11061519A JP 6151999 A JP6151999 A JP 6151999A JP 2000256651 A JP2000256651 A JP 2000256651A
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- friction
- binder
- friction modifier
- trisodium phosphate
- 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
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—Compositions of linings; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車、特に乗用
車、各種産業機械等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に適した摩擦
材組成物及び摩擦材組成物を用いた摩擦材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a friction material composition and a friction material composition suitable for friction materials such as disc brake pads and brake linings used for braking automobiles, especially passenger cars and various industrial machines. Related to friction material.
【０００２】[0002]
【従来の技術】乗用車、各種産業機械等には、その制動
のためディスクブレーキパッド、ブレーキライニング等
の摩擦材が使用されている。従来の摩擦材、例えばディ
スクブレーキパッドは、特開昭４９−２１５４４号公
報、特開平２−１３２１７５号公報等に示されるように
補強繊維として、スチール繊維、黄銅繊維、銅繊維等の
金属繊維、アクリル繊維、アラミド繊維、フェノール繊
維等の有機繊維、ロックウール、チタン酸カリウム繊
維、アルミナシリカ繊維、カーボン繊維等の無機繊維を
基材とし、これに結合剤としてフェノール樹脂、メラミ
ン樹脂等の熱硬化性樹脂、摩擦調整剤として、ゴムダス
ト、カシューダスト等の有機質摩擦調整剤、硫酸バリウ
ム、黒鉛、三硫化アンチモン、マイカ、ジルコニア、シ
リカ、アルミナ、炭酸カルシウム、炭酸マグネシウム等
の無機質摩擦調整剤などを含む混合物を加熱加圧成形し
たものが一般的に知られている。2. Description of the Related Art A friction material such as a disc brake pad or a brake lining is used for braking a passenger car, various industrial machines, and the like. Conventional friction materials, for example, disc brake pads, are disclosed in JP-A-49-21544, JP-A-2-132175, and the like, as reinforcing fibers, metal fibers such as steel fibers, brass fibers, and copper fibers; Organic fiber such as acrylic fiber, aramid fiber, phenol fiber, etc., rock wool, potassium titanate fiber, alumina silica fiber, inorganic fiber such as carbon fiber as the base material, and thermosetting of phenol resin, melamine resin etc. as binder Inorganic friction modifiers such as rubber dust, cashew dust, etc., and inorganic friction modifiers such as barium sulfate, graphite, antimony trisulfide, mica, zirconia, silica, alumina, calcium carbonate, magnesium carbonate, etc. A mixture formed by heating and pressing is generally known.
【０００３】しかしながら、従来のディスクブレーキパ
ッドは、例えば乗用車の場合、ブレーキペダルを踏んで
ディスクブレーキが制動したときの止まり際又はそれか
ら発進するためブレーキペダルの踏力を弱めたとき、即
ち揺り戻し時などにグー音と称する２００〜３００Hz付
近の異音が発生し、グー音の音圧が高い場合ユーザーに
とっては、故障の前兆とみなすことがある。このグー音
は、ディスクブレーキパッドと相手材のディスクロータ
ー間のスティックスリップを起振源とし、サスペンショ
ン部品を共振系として発生し、特に絶対湿度が高いとき
及び夜間一晩駐車した場合に大きくなる。However, in the case of a passenger car, for example, in the case of a passenger car, a conventional disk brake pad is used when the brake pedal is stopped when the disk brake is braked, or when the brake pedal is weakened to start the vehicle, that is, when the disk brake returns. In the case where an abnormal sound called a goo sound near 200 to 300 Hz is generated and the sound pressure of the goo sound is high, it may be regarded as a sign of failure for the user. The goo noise is caused by stick-slip between the disc brake pad and the disc rotor of the mating member as a vibration source, and a suspension component is generated as a resonance system. The goo noise is particularly large when the absolute humidity is high and the vehicle is parked overnight at night.
【０００４】この主原因は、絶対湿度の高いとき及び夜
間一晩駐車したときに、ディスクロータ表面に生成され
るトランスファーフィルムに水分が吸着し、この水分が
原因でディスクロータとトランスファーフィルム間に錆
を発生させ、再運転する際運転初期時にトランスファー
フィルムが剥離することで静動μ低下比が大きくなって
グー音の音圧を大きくしていると考えられる。[0004] The main cause of this is that when the absolute humidity is high and when the vehicle is parked overnight, moisture is adsorbed on the transfer film formed on the surface of the disk rotor, and this moisture causes rust between the disk rotor and the transfer film. It is considered that the transfer film is peeled off at the initial stage of the operation at the time of re-operation and the static μ reduction ratio is increased to increase the sound pressure of the goo noise.
【０００５】[0005]
【発明が解決しようとする課題】請求項１及び２記載の
発明は、絶対湿度が高いとき及び夜間一晩駐車したとき
のグー音の発生及び音圧を低減することが可能な摩擦材
に適した摩擦材組成物を提供するものである。請求項３
記載の発明は、絶対湿度が高いとき及び夜間一晩駐車し
たときのグー音の発生及び音圧を低減することが可能な
摩擦材を提供するものである。The invention according to claims 1 and 2 is suitable for a friction material capable of reducing goof noise and reducing sound pressure when the absolute humidity is high and the vehicle is parked overnight at night. And a friction material composition. Claim 3
The described invention provides a friction material capable of reducing the generation of goo noise and the sound pressure when the absolute humidity is high and the vehicle is parked overnight at night.
【０００６】[0006]
【課題を解決するための手段】本発明は、繊維状物質、
結合剤及び摩擦調整剤を含む摩擦材組成物において、摩
擦調整剤がリン酸三ナトリウムを必須成分として含む摩
擦材組成物に関する。また、本発明は、リン酸三ナトリ
ウムが、全組成物中で０．０８〜１０．５重量％である
摩擦材組成物に関する。さらに、本発明は、上記の摩擦
材組成物を加熱加圧成形してなる摩擦材に関する。The present invention provides a fibrous material,
A friction material composition comprising a binder and a friction modifier, the friction modifier comprising trisodium phosphate as an essential component. Further, the present invention relates to a friction material composition in which trisodium phosphate is 0.08 to 10.5% by weight in the total composition. Further, the present invention relates to a friction material obtained by heating and pressing the above friction material composition.
【０００７】[0007]
【発明の実施の形態】本発明において、リン酸三ナトリ
ウムの含有量は、グー音の音圧低下、クラックの発生防
止などの点から、全組成物中に０．０８〜１０．５重量
％とすることが好ましく、０．１〜１０．０重量部とす
ることがより好ましく、０．５〜７．０重量％とするこ
とがさらに好ましく、１．０〜５．０重量％とすること
が最も好ましい。また、リン酸三ナトリウムの平均粒径
は、０．１〜１００μｍが好ましく、１〜２０μｍがよ
り好ましく、５〜１０μｍがさらに好ましい。BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, the content of trisodium phosphate is 0.08 to 10.5% by weight in the total composition from the viewpoint of reducing the sound pressure of goo noise and preventing cracks from occurring. It is preferable that the content be 0.1 to 10.0 parts by weight, more preferably 0.5 to 7.0% by weight, and 1.0 to 5.0% by weight. Is most preferred. Further, the average particle size of trisodium phosphate is preferably 0.1 to 100 μm, more preferably 1 to 20 μm, and still more preferably 5 to 10 μm.
【０００８】本発明における繊維状物質としては、例え
ば、スチール繊維、黄銅繊維、銅繊維、アラミド繊維、
アクリル繊維、フェノール繊維、セラミック繊維、ロッ
クウール、チタン酸カリウム繊維、カーボン繊維等が挙
げられる。本発明における結合剤としては、例えば、フ
ェノール樹脂、エポキシ樹脂、メラミン樹脂、カシュー
樹脂等の熱硬化性樹脂、ＮＢＲ、ＳＢＲ、ＩＲ等のゴ
ム、前記熱硬化性樹脂と前記ゴムとを混合したものなど
が挙げられる。本発明における摩擦調整剤としては、例
えば、ゴムダスト、カシューダスト等の有機質摩擦調整
剤、硫酸バリウム、黒鉛、三硫化アンチモン、マイカ、
ジルコニア、シリカ、アルミナ炭酸カルシウム、炭酸マ
グネシウム等の無機質摩擦調整剤などが挙げられる。さ
らに必要に応じて黄銅粉、鉄粉、銅粉等の金属粉が添加
される。The fibrous substance in the present invention includes, for example, steel fiber, brass fiber, copper fiber, aramid fiber,
Acrylic fiber, phenol fiber, ceramic fiber, rock wool, potassium titanate fiber, carbon fiber and the like can be mentioned. As the binder in the present invention, for example, a thermosetting resin such as a phenol resin, an epoxy resin, a melamine resin, a cashew resin, a rubber such as NBR, SBR, IR, or a mixture of the thermosetting resin and the rubber And the like. As the friction modifier in the present invention, for example, organic friction modifiers such as rubber dust, cashew dust, barium sulfate, graphite, antimony trisulfide, mica,
Examples include inorganic friction modifiers such as zirconia, silica, alumina calcium carbonate, and magnesium carbonate. Further, metal powder such as brass powder, iron powder and copper powder is added as needed.
【０００９】上記における繊維状物質の含有量は、機械
強度などの点から、全組成物中に３０〜６０重量％とす
ることが好ましく、４０〜５０重量％とすることがより
好ましい。結合剤の含有量は、成形性などの点から、全
組成物中に３〜２０重量％とすることが好ましく、５〜
１５重量％とすることがより好ましい。摩擦調整剤の含
有量は、摩擦係数の高さ、安定性などの点から、全組成
物中に２１〜６６重量％とすることが好ましく、２８〜
５４重量％とすることがより好ましい。また、有機質摩
擦調整剤と無機質摩擦調整剤の使用割合は、有機質摩擦
調整剤／無機質摩擦調整剤（重量比）が１０／９０〜２
０／８０とすることが好ましい。なお必要に応じて添加
する金属粉の含有量は、全組成物中に１〜２０重量％と
することが好ましく、３〜１５重量％とすることがより
好ましい。これらの成分は、全組成物が１００重量％と
なるように配合される。The content of the fibrous substance in the above composition is preferably 30 to 60% by weight, more preferably 40 to 50% by weight, based on the total strength of the composition. The content of the binder is preferably 3 to 20% by weight in the whole composition from the viewpoint of moldability and the like.
More preferably, the content is 15% by weight. The content of the friction modifier is preferably 21 to 66% by weight in the whole composition, from the viewpoint of the high coefficient of friction, stability, and the like.
More preferably, it is set to 54% by weight. The ratio of the organic friction modifier and the inorganic friction modifier is such that the ratio of organic friction modifier / inorganic friction modifier (weight ratio) is 10 / 90-2.
It is preferably 0/80. The content of the metal powder added as necessary is preferably 1 to 20% by weight, more preferably 3 to 15% by weight in the whole composition. These components are blended so that the total composition is 100% by weight.
【００１０】本発明になる摩擦材は、リン酸三ナトリウ
ム、繊維状物質、結合剤及び他の摩擦調整剤を含む材料
を加えて均一に混合し、この混合物を予備成形し、次い
で金型内に裏金及び予備成形体を挿設した後、加熱加圧
成形法で成形し、その後熱処理を行い、必要に応じて表
面の有機成分を除去するためスコーチ処理を行って得ら
れる。なお成形する際の加熱温度は１３０〜１７０℃が
好ましく、１４０〜１６０℃がより好ましい。圧力は３
０〜６０MPaが好ましく、４０〜５０MPaがより好まし
い。熱処理温度は１００〜３００℃が好ましく、１５０
〜２５０℃がより好ましい。The friction material according to the present invention is prepared by adding a material containing trisodium phosphate, a fibrous substance, a binder and other friction modifiers, uniformly mixing the mixture, preforming the mixture, and then forming the mixture in a mold. After the back metal and the preformed body are inserted into the base plate, they are formed by a heat and pressure forming method, followed by heat treatment, and, if necessary, scorch treatment to remove organic components on the surface. The heating temperature at the time of molding is preferably from 130 to 170 ° C, more preferably from 140 to 160 ° C. Pressure is 3
0 to 60 MPa is preferred, and 40 to 50 MPa is more preferred. The heat treatment temperature is preferably 100 to 300 ° C.
~ 250 ° C is more preferred.
【００１１】必要に応じて行うスコーチ処理は、摩擦部
材に熱盤を押し当てる方法、ガスの炎などの直火で加熱
する方法、遠赤外線などの輻射熱で加熱する方法等があ
り特に制限はない。またスコーチ処理の条件について
は、その材質に合った条件を選定して処理すればよい。
本発明における摩擦材の配合は、セミメタリック系、ノ
ンスチール系のいずれにも適用でき特に制限はない。The scorch treatment performed as necessary includes a method of pressing a hot plate against a friction member, a method of heating with a direct flame such as a gas flame, and a method of heating with radiant heat such as far infrared rays, and is not particularly limited. . Further, as for the conditions of the scorch processing, the processing may be performed by selecting conditions suitable for the material.
The compounding of the friction material in the present invention can be applied to any of a semi-metallic type and a non-steel type, and is not particularly limited.
【００１２】[0012]
【実施例】以下本発明の実施例を説明する。 実施例１ 平均粒径が５．０μｍのリン酸三ナトリウム５．０重量
％に、表１に示す量の他の材料を配合し、混合機で３０
００r/minの回転速度で４分間混合し、摩擦材組成物Ａ
を得た。Embodiments of the present invention will be described below. Example 1 5.0 wt% of trisodium phosphate having an average particle size of 5.0 μm was mixed with other materials in the amounts shown in Table 1, and mixed with a mixer.
Mix at a rotational speed of 00 r / min for 4 minutes to obtain a friction material composition A.
I got
【００１３】実施例２ 平均粒径が５．０μｍのリン酸三ナトリウム０．１重量
％に、表１に示す量の他の材料を配合し、混合機で３０
００r/minの回転速度で４分間混合し、摩擦材組成物Ｂ
を得た。Example 2 0.1% by weight of trisodium phosphate having an average particle size of 5.0 μm was mixed with other materials in the amounts shown in Table 1 and mixed with a mixer.
Mix at a rotational speed of 00 r / min for 4 minutes to obtain a friction material composition B
I got
【００１４】実施例３ 平均粒径が５．０μｍのリン酸三ナトリウム１０．０重
量％に、表１に示す量の他の材料を配合し、混合機で３
０００r/minの回転速度で４分間混合し、摩擦材組成物
Ｃを得た。Example 3 10.0 wt% of trisodium phosphate having an average particle size of 5.0 μm was mixed with other materials in the amounts shown in Table 1, and mixed with a mixer.
The mixture was mixed at a rotation speed of 000 r / min for 4 minutes to obtain a friction material composition C.
【００１５】実施例４ 平均粒径が５．０μｍのリン酸三ナトリウム０．０５重
量％に、表１に示す量の他の材料を配合し、混合機で３
０００r/minの回転速度で４分間混合し、摩擦材組成物
Ｄを得た。Example 4 Other materials in an amount shown in Table 1 were blended with 0.05% by weight of trisodium phosphate having an average particle size of 5.0 μm, and mixed with a mixer.
The mixture was mixed at a rotation speed of 000 r / min for 4 minutes to obtain a friction material composition D.
【００１６】実施例５ 平均粒径が５．０μｍのリン酸三ナトリウム１１．０重
量％に、表１に示す量の他の材料を配合し、混合機で３
０００r/minの回転速度で４分間混合し、摩擦材組成物
Ｅを得た。Example 5 11.0% by weight of trisodium phosphate having an average particle size of 5.0 μm was mixed with other materials in the amounts shown in Table 1, and mixed with a mixer.
The mixture was mixed at a rotation speed of 000 r / min for 4 minutes to obtain a friction material composition E.
【００１７】比較例１ リン酸三ナトリウムを用いず表１に示す量の他の材料を
配合し、混合機で３０００r/minの回転速度で４分間混
合し、摩擦材組成物Ｆを得た。Comparative Example 1 Other materials were mixed in the amounts shown in Table 1 without using trisodium phosphate, and mixed with a mixer at a rotation speed of 3000 r / min for 4 minutes to obtain a friction material composition F.
【００１８】上記の実施例１〜５及び比較例１で得られ
た摩擦材組成物Ａ、Ｂ、Ｃ、Ｄ、Ｅ及びＦを各々予備成
形し、次いで金型内にディスクブレーキパッド用の裏金
及び予備成形体を挿設し、その後１５０±２．５℃、圧
力４９ＭＰａの条件で５分間加熱加圧成形した。さらに
２００℃で５時間熱処理を行い、冷却後研磨し、４７０
±１０℃で５分間の表面スコーチ処理を行って端部から
端部までの長さが１２７mmのディスクブレーキパッド
Ａ、Ｂ、Ｃ、Ｄ、Ｅ及びＦを得た。The friction material compositions A, B, C, D, E and F obtained in the above Examples 1 to 5 and Comparative Example 1 are each preformed, and then the back metal for a disc brake pad is placed in a mold. Then, the preform was inserted, and then heated and pressed for 5 minutes at 150 ± 2.5 ° C. and a pressure of 49 MPa. Further, heat treatment is performed at 200 ° C. for 5 hours, and after cooling, polishing is performed.
The surface scorch treatment was performed at ± 10 ° C. for 5 minutes to obtain disc brake pads A, B, C, D, E and F having a length from end to end of 127 mm.
【００１９】[0019]
【表１】 [Table 1]
【００２０】次に上記で得られたディスクブレーキパッ
ドＡ、Ｂ、Ｃ、Ｄ、Ｅ及びＦについて比較試験を行っ
た。その試験結果を表２に示す。なおグー音の評価方法
については、車両重量：１６００kg、ブレーキ型式：コ
レットタイプ（シリンダ面積：２８cm2）、２０００cc
オートマチック車で、市街地走行（１０００km）を行
い、下記の３条件のときのグー音の音圧を騒音計を用い
てそれぞれ測定し、その測定結果を表２に示す。また外
観（クラック発生の有無）について調べた結果も表２に
示す。Next, a comparative test was performed on the disc brake pads A, B, C, D, E and F obtained above. Table 2 shows the test results. The evaluation method of the goo noise is as follows: vehicle weight: 1600 kg, brake type: collet type (cylinder area: 28 cm 2 ), 2000 cc
The vehicle was driven in an urban area (1000 km) with an automatic vehicle, and the sound pressure of the goo sound under the following three conditions was measured using a sound level meter. The measurement results are shown in Table 2. Table 2 also shows the results of an examination of the appearance (the presence or absence of cracks).
【００２１】測定条件１：絶対湿度が２〜５g/m3の環境
条件下で、制動前温度１３０℃で５０km/hの速度から
０．３Ｇで制動し、揺り戻し時のグー音を１０回測定
し、その平均値を求めた。 測定条件２：絶対湿度が１５〜１８g/m3の環境条件下
で、制動前温度１３０℃で５０km/hの速度から０．３Ｇ
で制動し、揺り戻し時のグー音を１０回測定し、その平
均値を求めた。 測定条件３：走行後に夜間一晩駐車し、翌朝エンジン始
動直後に２０km/hの速度から０．３Ｇで制動し、揺り戻
し時のグー音を５回測定し、その平均値を求めた。Measuring condition 1: Under the environment condition of the absolute humidity of 2 to 5 g / m 3 , braking was performed at a temperature of 130 ° C. before braking at a speed of 50 km / h at a speed of 0.3 G, and a goo sound was returned 10 times when the rocking returned. The measurement was performed, and the average value was obtained. Measurement conditions 2: Absolute environmental conditions of humidity 15~18g / m 3, 0.3G from a speed of 50 km / h braking front temperature 130 ° C.
And the goo sound at the time of swingback was measured 10 times, and the average value was obtained. Measuring condition 3: After running, the vehicle was parked overnight at night, and immediately after the engine was started the next morning, braking was performed at a speed of 20 km / h at 0.3 G, and the goo noise at the time of swingback was measured five times, and the average value was obtained.
【００２２】[0022]
【表２】 [Table 2]
【００２３】表２に示されるように、本発明の実施例に
なる摩擦材組成物を用いたディスクブレーキパッドは、
グー音の音圧が低く、クラックの発生もほとんど認めら
れず、たとえクラックが発生しても多少発生したにすぎ
なかった。これに対し比較例１の摩擦材組成物を用いた
ディスクブレーキパッドは、グー音の音圧が高く、特に
吸湿量が多くなるとさらにグー音の音圧が高くるという
欠陥が生じた。As shown in Table 2, the disc brake pad using the friction material composition according to the embodiment of the present invention is:
The sound pressure of the goo sound was low, cracks were hardly observed, and even if cracks occurred, they occurred only slightly. On the other hand, the disk brake pad using the friction material composition of Comparative Example 1 had a defect that the sound pressure of the goo sound was high, and particularly, the sound pressure of the goo sound was further increased as the amount of absorbed moisture increased.
【００２４】[0024]
【発明の効果】請求項１及び２における摩擦材組成物
は、絶対湿度が高いとき及び夜間一晩駐車したときのグ
ー音の発生及び音圧を低減することが可能で、クラック
の発生のない摩擦材を提供することができる。請求項３
における摩擦材は、絶対湿度が高いとき及び夜間一晩駐
車したときのグー音の発生及び音圧を低減することがで
き、クラックの発生もなく工業的に極めて好適である。The friction material composition according to the first and second aspects can reduce the generation of goo noise and the sound pressure when the absolute humidity is high and when the vehicle is parked overnight at night, and does not generate cracks. A friction material can be provided. Claim 3
Can reduce the generation of goo noise and the sound pressure when the vehicle is parked overnight when the absolute humidity is high and when it is parked overnight, and is industrially extremely suitable without cracks.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ１６Ｄ 69/02 Ｆ１６Ｄ 69/02 Ｃ Ｆターム(参考） 3J058 BA21 BA25 BA44 BA46 CA02 CA42 FA01 FA11 FA21 FA31 GA03 GA04 GA07 GA12 GA20 GA22 GA24 GA26 GA27 GA28 GA33 GA34 GA35 GA37 GA39 GA43 GA45 GA55 GA57 GA58 GA59 GA62 GA64 GA65 GA73 GA81 GA92 4J002 AC003 AC061 AC071 AC081 AH001 AH003 BG102 CC031 CC042 CC181 CD001 CL062 DA017 DA028 DC007 DE078 DE098 DE187 DG027 DG028 DG048 DH046 DJ018 DJ058 DM007 FA042 FA047 FA083 FD208 GM03 ────────────────────────────────────────────────── ─── of the front page continued (51) Int.Cl. 7 identification mark FI theme Court Bu (reference) F16D 69/02 F16D 69/02 C F-term (reference) 3J058 BA21 BA25 BA44 BA46 CA02 CA42 FA01 FA11 FA21 FA31 GA03 GA04 GA07 GA12 GA20 GA22 GA24 GA26 GA27 GA28 GA33 GA34 GA35 GA37 GA39 GA43 GA45 GA55 GA57 GA58 GA59 GA62 GA64 GA65 GA73 GA81 GA92 4J002 AC003 AC061 AC071 AC081 AH001 AH003 BG102 CC031 CC042 CC181 CD001 CL062 DA017 DA028 DC007 DE0 DG DG DG DG DEF DM007 FA042 FA047 FA083 FD208 GM03
Claims (3)
む摩擦材組成物において、摩擦調整剤がリン酸三ナトリ
ウムを必須成分として含む摩擦材組成物。1. A friction material composition comprising a fibrous substance, a binder and a friction modifier, wherein the friction modifier comprises trisodium phosphate as an essential component.
０．０８〜１０．５重量％である請求項１記載の摩擦材
組成物。2. The friction material composition according to claim 1, wherein the content of trisodium phosphate is 0.08 to 10.5% by weight in the whole composition.
熱加圧成形してなる摩擦材。3. A friction material formed by heating and pressing the friction material composition according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11061519A JP2000256651A (en) | 1999-03-09 | 1999-03-09 | Friction material composition and friction material prepared therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11061519A JP2000256651A (en) | 1999-03-09 | 1999-03-09 | Friction material composition and friction material prepared therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000256651A true JP2000256651A (en) | 2000-09-19 |
Family
ID=13173433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11061519A Pending JP2000256651A (en) | 1999-03-09 | 1999-03-09 | Friction material composition and friction material prepared therefrom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000256651A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003481A (en) * | 2010-11-08 | 2011-04-06 | 信义集团公司 | Method for preparing brake sheet of sedan from rubber-coated steel fibers |
| WO2020189649A1 (en) * | 2019-03-20 | 2020-09-24 | 曙ブレーキ工業株式会社 | Friction material |
| WO2021079831A1 (en) * | 2019-10-25 | 2021-04-29 | 曙ブレーキ工業株式会社 | Friction material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56129284A (en) * | 1980-03-17 | 1981-10-09 | Akebono Brake Ind Co Ltd | Friction material |
| JPH0354298A (en) * | 1989-05-23 | 1991-03-08 | Dow Corning Gmbh | Alkali phosphate as anticorrosive for friction lining or for solid lubricant composition in friction lining |
| JPH04311789A (en) * | 1991-01-28 | 1992-11-04 | Chemson Polymer Additive Gmbh | Resin-bonded friction lining mixture and solid lubricating additive for it |
-
1999
- 1999-03-09 JP JP11061519A patent/JP2000256651A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56129284A (en) * | 1980-03-17 | 1981-10-09 | Akebono Brake Ind Co Ltd | Friction material |
| JPH0354298A (en) * | 1989-05-23 | 1991-03-08 | Dow Corning Gmbh | Alkali phosphate as anticorrosive for friction lining or for solid lubricant composition in friction lining |
| JPH04311789A (en) * | 1991-01-28 | 1992-11-04 | Chemson Polymer Additive Gmbh | Resin-bonded friction lining mixture and solid lubricating additive for it |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003481A (en) * | 2010-11-08 | 2011-04-06 | 信义集团公司 | Method for preparing brake sheet of sedan from rubber-coated steel fibers |
| WO2020189649A1 (en) * | 2019-03-20 | 2020-09-24 | 曙ブレーキ工業株式会社 | Friction material |
| JP2020152848A (en) * | 2019-03-20 | 2020-09-24 | 曙ブレーキ工業株式会社 | Friction material |
| CN113597460A (en) * | 2019-03-20 | 2021-11-02 | 曙制动器工业株式会社 | Friction material |
| JP7323310B2 (en) | 2019-03-20 | 2023-08-08 | 曙ブレーキ工業株式会社 | friction material |
| WO2021079831A1 (en) * | 2019-10-25 | 2021-04-29 | 曙ブレーキ工業株式会社 | Friction material |
| CN114585826A (en) * | 2019-10-25 | 2022-06-03 | 曙制动器工业株式会社 | Friction material |
| JP7372111B2 (en) | 2019-10-25 | 2023-10-31 | 曙ブレーキ工業株式会社 | Friction material |
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