JP2003194121A - Brake friction material - Google Patents
Brake friction materialInfo
- Publication number
- JP2003194121A JP2003194121A JP2001395573A JP2001395573A JP2003194121A JP 2003194121 A JP2003194121 A JP 2003194121A JP 2001395573 A JP2001395573 A JP 2001395573A JP 2001395573 A JP2001395573 A JP 2001395573A JP 2003194121 A JP2003194121 A JP 2003194121A
- Authority
- JP
- Japan
- Prior art keywords
- mass
- friction material
- brake friction
- potassium titanate
- vermiculite
- 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.)
- Granted
Links
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は自動車等のブレーキ
摩擦材に関し、より詳しくは、摩擦係数の安定性、異音
の低減性、品質安定性に優れたブレーキ摩擦材に関す
る。
【０００２】
【従来の技術】従来、自動車等のブレーキ摩擦材は、ス
チール繊維などの金属繊維、ロックウール、スラグウー
ル、チタン酸カリウムウィスカ、ガラス繊維、アラミド
繊維などの天然または人造の無機繊維、有機繊維などの
強化繊維材料；フェノール樹脂などの結合材；黒鉛、二
硫化モリブデンなどの潤滑材；カシューダスト、セラミ
ック粉、金属粉などの摩擦調整材；硫酸バリウムなどの
充填材；及び水酸化カルシウムなどのｐＨ調整材；など
を配合して、混合して得られる混合物を、常温にて圧縮
成形（予備成形）し、次いで、予め接着剤を塗布した裏
金とともに加熱圧縮成形し、さらに熱処理した後、溝加
工や表面研磨を施すことにより製造されている。これら
の強化繊維材料の中ではチタン酸カリウムウィスカ、ロ
ックウール、スラグウールが性能コストバランスに優れ
ることから広く用いられている。チタン酸カリウムウィ
スカは強化繊維材料の中でも研削性硬質無機繊維とし
て、ブレーキ摩擦材全体の強度、耐熱性を高め、耐摩耗
性を向上させるだけでなく、ブレーキ摩擦材の摩擦係数
を高めるものとして高く評価されている。
【０００３】
【発明が解決しようとする課題】チタン酸カリウムウィ
スカはブレーキ摩擦材用強化繊維として優れた性能を有
するものの、チタン酸カリウムウィスカを用いたブレー
キ摩擦材に割れが生じることがあった。そこで、本発明
は、チタン酸カリウムウィスカを用いたブレーキ摩擦材
と同様のの耐熱性、耐摩耗性、高度の摩擦係数を維持し
つつ、さらに強度が高く、使用時の割れ頻度が小さく、
鳴き特性に優れるブレーキ摩擦材を提供することを目的
とする。
【０００４】
【課題を解決するための手段】ブレーキ摩擦材は、ブレ
ーキ摩擦材とロータの間の摩擦抵抗でロータの回転に制
動をかけるが、その際ロータや摩擦材の一部が摩耗す
る。また、制動時の熱により摩耗した摩擦材中の有機物
が分解し、この分解生成物が摩擦面に残るとブレーキ特
性が低下する。そこで、有機物の分解生成物を効率的に
除去して摩擦面を正常に保つ必要がある。本発明者らは
この観点から検討を進めたところ、ウィスカやロックウ
ールは分散性が悪く、毛玉化していることに気づき、こ
の毛玉化とブレーキ摩擦材性能との関係に着目して鋭意
検討した。
【０００５】その結果、この毛玉化によって、気孔率で
表されるように空孔が保持され、気孔率が向上する。ま
た、摩擦面では、毛玉内部の繊維材は樹脂と結合してい
ないので繊維材が容易に脱落し、大きな孔が存在する。
そしてこの孔が制動により生じた有機物の分解生成物を
掻き取り、摩擦面を正常に保つ機能を有していると考え
るに至った。そこで、この観点から、チタン酸カリウム
ウィスカ、ロックウール、スラグウールの代替ぶつとな
り得るものにつき、探索した。かかる代替物としては以
下の性質が必要である。すなわち、耐熱性が必要なこと
から無機質であること、制動による力で物理的に分解さ
れて摩擦面から脱落しやすいこと、相手ロータを摩耗し
難い低硬度材料であること、毛玉形状の性能を具備する
ため、形状が無機繊維の毛玉と同程度の粒状であること
などである。そして、バーミキュライトが上記の性質を
有していることから、その粒径を検討し、かつ、強度向
上のためにチタン酸カリウム板状繊維、さらに成形性、
気孔率向上のために珪藻土を複合して用いることで、制
動性能に優れ、かつ、高強度で使用時の割れ頻度が小さ
く、鳴き特性に優れるブレーキ摩擦材が得られることを
見出し、本発明に到達した。
【０００６】すなわち、本発明の要旨は、少なくとも強
化繊維、結合材、潤滑材、摩擦調整材、及び充填材を含
有するブレーキ摩擦材において、ブレーキ摩擦材を１０
０質量％としたとき、平均粒径０．２〜２ｍｍの粒状バ
ーミキュライトを１〜５質量％、珪藻土を５〜１５質量
％、チタン酸カリウム板状物を５〜２０質量％含み、バ
ーミキュライトと珪藻土の合計量が１０〜２０質量％で
あることを特徴とするブレーキ摩擦材にある。本発明の
ブレーキ摩擦材としては、ｐＨ調整材を含有していても
よく、さらに軟質金属繊維を含んでいてもよい。
【０００７】
【発明の実施の形態】本発明のブレーキ摩擦材は、ブレ
ーキ摩擦材を１００質量％としたとき、平均粒径０．２
〜２ｍｍの粒状バーミキュライトを１〜５質量％、珪藻
土を５〜１５質量％含み、かつこの両者の合計量が、１
０〜２０質量％であり、強化繊維材料としてチタン酸カ
リウム板状繊維をブレーキ摩擦材を１００質量％とした
とき、５〜２０質量％含んでいる必要がある。このよう
な構成にすることにより、気孔率を高めて、フェード試
験時に高温になることによって生成した分解生成物を気
孔に取り込んで、摩擦係数の低下を抑制し、耐フェード
性を向上できる。また、気孔率が高くなることによって
ブレーキ摩擦材が柔らかくなって、振動を抑制し、スキ
ール音の発生を抑制することができる。従って、チタン
酸カリウムウィスカ等のウィスカを含まずとも高性能の
ブレーキ摩擦材となる。
【０００８】本発明のブレーキ摩擦材は、さらに、スチ
ールなどの硬質金属繊維、銅繊維などの軟質金属繊維、
アラミド繊維などの有機繊維等を含んでいてもよい。結
合材としてはフェノール樹脂を例示できる。潤滑材とし
ては黒鉛、三硫化アンチモン、二硫化モリブデンなどを
例示でき、摩擦調整材としては、カシューダスト、セラ
ミック粉、金属粉、アルミナ粉などの金属酸化物粉、ゴ
ム粉などを例示できる。充填材としては、硫酸化バリウ
ムなど、ｐＨ調整材としては水酸化カルシウムなどが用
いられる。
【０００９】本発明においては、粒状バーミキュライト
の平均粒径が０．２ｍｍより小さいと、鳴きが発生しや
すくなり、２ｍｍより大きくなるとブレーキ摩擦材を構
成する材料の分散性が不良となり、ブレーキ摩擦材の製
造が困難となる。バーミキュライトが１質量％より少な
いと、鳴きが多くなる。逆にバーミキュライトが５質量
％より多くなるとブレーキ摩擦材成型時に割れが発生し
やすくなる。
【００１０】珪藻土が５質量％より少ないとパッド摩耗
量が増加し、鳴きが多く、耐フェード性が低下する。珪
藻土が１５質量％より多くなってもパッド摩耗量が増加
し、鳴きも多く、さらにグー音も発生しやすくなる。バ
ーミキュライトと珪藻土の双方が上記範囲内にあって
も、この合計量が１０質量％未満になると、耐フェード
性の低下や鳴きも多くなる問題点がある。チタン酸カリ
ウム板状繊維の配合量が５質量％より少ないと、パッド
摩耗量も大きくなり、グー音が発生しやすくなる。チタ
ン酸カリウム板状繊維が２０質量％より多く配合される
と耐フェード性が大きく低下し、鳴きが非常に多くな
る。
【００１１】
【実施例】以下に、実施例を用いて、本発明をさらに詳
しく説明する。
（実施例１〜５、比較例１〜８）まず、裏金を充分に洗
浄した後、接着剤を塗布し、乾燥した。次いで、表１に
記載の材料を表１に記載の量配合し、均一に混合した。
なお、表１の各実施例におけるバーミキュライトは平均
粒径０．５ｍｍ、１．０ｍｍ、２．０ｍｍの粒状バーミ
キュライトの混合物を用い、比較例１では平均粒径０．
１ｍｍ、比較例２では平均粒径３．０ｍｍのものを用い
た。また、強化繊維としては、スチール繊維（平均繊維
径５０μｍ、平均長さ２ｍｍ）と、アラミド繊維、銅繊
維（平均繊維径６０μｍ、平均長さ３ｍｍ）の混合物を
用いた。潤滑材としては、黒鉛及び二硫化モリブデンの
混合物を用いた。摩擦調整材としては、カシューダス
ト、ゴム粉及びアルミナ粉の混合物を用い、ｐＨ調整剤
として水酸化カルシウムを用いた。
【００１２】
【表１】
【００１３】これを、常温で所定の金型を用いて圧力５
０ＭＰａで冷間圧縮成形して予備成形品を得た。次い
で、接着剤を塗布した裏金と、この予備成形品とを１５
０℃に設定した金型に投入し、４０ＭＰａの圧力で２５
０〜３００秒加熱圧縮成形（本成形）した。さらに、こ
の加熱圧縮成形品を２２０℃、６時間の条件で熱処理
し、研磨、溝加工を施してブレーキ摩擦材（ブレーキパ
ッド）を得た。各実施例においてはこのブレーキ摩擦材
製造工程における予備成形品の取り扱い性は良好で、取
り扱い時に予備成形品が崩れたものは１つもなかった。
これらのブレーキ摩擦材につき、摩擦摩耗特性（自動車
技術会規格ＪＡＳＯＣ−４０６）及び実車における異音
を調査した。その結果を表２に示す。また、ロータの摩
耗性を調べたが、チタン酸カリウムウィスカを用いたブ
レーキ摩擦材を用いた場合に比べて、各実施例で得たブ
レーキ摩擦材を用いた場合は使用時における摩擦材の割
れの頻度は少なかった。
【００１４】
【表２】
【００１５】表２中、効力は第２効力のミニマム値で１
３０ｋｍ／ｈ、８．０ｍ／ｓ2の時の値を示し、フェー
ドは第１フェードのミニマム値（１００ｋｍ／ｈ、４．
５ｍ／ｓ2、３５ｓ毎）を示しており、これらの値が大
きいほどブレーキの効力が高くなる、あるいは、フェー
ド現象が発生し難くなることを示している。また、パッ
ド摩耗量は１０００回あたりの値であり、この値が小さ
いほど摩耗量が少なく、良好であることを示している。
また、鳴き回数は、３０００回あたりの値である。
【００１６】各実施例のブレーキ摩擦材は予備成形品の
取り扱い性にすぐれ、かつ、表２から明らかなように、
耐フェード性、摩擦摩耗特性、鳴き特性、異音とも性能
に優れるが、比較例１のブレーキ摩擦材はバーミキュラ
イトの粒径が小さすぎるため鳴きが発生しやすくなり、
フェード値も低めの値となっている。比較例２ではバー
ミキュライトの粒径が大きすぎるため、材料の分散性が
不良となり、ブレーキ摩擦材の製造が困難となってい
る。比較例３ではバーミキュライトを含まないため、鳴
きが発生しやすくなっている。比較例４では予備成形品
の取り扱い性に劣り、成型時に割れが多発している。比
較例５では、珪藻土が少なすぎるため、フェード値が低
めの値となり、パッド摩耗量が多くなり、鳴きが発生し
やすくなっている。比較例６では、珪藻土が多すぎるた
め、フェード値が低めとなり、パッド摩耗量が大きく、
鳴きも多い。比較例７では、チタン酸カリウム板状繊維
が少なすぎるため、フェード値が低く、パッド摩耗量も
多く、グー音が発生している。比較例８では、チタン酸
カリウム板状繊維が多すぎるため、フェード値が低くな
り、鳴きが非常に多くなっていることがわかる。
【００１７】
【発明の効果】本発明のブレーキ摩擦材は、平均粒径
０．２〜２ｍｍのバーミキュライトと珪藻土、及びチタ
ン酸カリウム板状繊維を所定量配合することにより、チ
タン酸カリウムウィスカを使用せずとも良好な耐フェー
ド性を示し、高強度で使用時の割れの発生頻度が小さ
く、鳴き特性に優れるという特徴を有する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake friction material for an automobile or the like, and more particularly, to a friction material having excellent stability in friction coefficient, noise reduction and quality stability. Related to brake friction material. Conventionally, brake friction materials for automobiles and the like include metal fibers such as steel fibers, natural or artificial inorganic fibers such as rock wool, slag wool, potassium titanate whiskers, glass fibers, and aramid fibers. Reinforcing fiber materials such as organic fibers; binders such as phenolic resins; lubricants such as graphite and molybdenum disulfide; friction modifiers such as cashew dust, ceramic powder and metal powder; fillers such as barium sulfate; and calcium hydroxide A mixture obtained by blending and mixing a pH adjusting material such as a material is compression-molded (pre-molded) at room temperature, then heated and compression-molded together with a backing metal coated with an adhesive in advance, and further heat-treated. It is manufactured by performing groove processing and surface polishing. Among these reinforcing fiber materials, potassium titanate whiskers, rock wool, and slag wool are widely used because of their excellent performance cost balance. Potassium titanate whisker is one of the reinforced fiber materials that is a grindable hard inorganic fiber, which not only increases the strength and heat resistance of the entire brake friction material and improves the wear resistance, but also increases the friction coefficient of the brake friction material. Has been evaluated. [0003] Although potassium titanate whiskers have excellent performance as reinforcing fibers for brake friction materials, cracks may occur in brake friction materials using potassium titanate whiskers. Therefore, the present invention has a higher strength, a lower frequency of cracks during use, while maintaining the same heat resistance, abrasion resistance, and high friction coefficient as the brake friction material using potassium titanate whiskers,
An object is to provide a brake friction material having excellent squeal characteristics. [0004] The brake friction material brakes the rotation of the rotor by frictional resistance between the brake friction material and the rotor. At this time, a part of the rotor and the friction material are worn. Further, the organic matter in the friction material worn by the heat at the time of braking is decomposed, and if the decomposition product remains on the friction surface, the braking characteristics deteriorate. Therefore, it is necessary to efficiently remove the decomposition products of organic substances to keep the friction surface normal. The present inventors have conducted studies from this point of view, and noticed that whiskers and rock wool have poor dispersibility and are pilled, and intensively studied by focusing on the relationship between this pilling and brake friction material performance. . [0005] As a result, the pores are retained by the pilling as represented by the porosity, and the porosity is improved. Further, on the friction surface, the fiber material inside the pill is not bonded to the resin, so that the fiber material easily falls off and large holes are present.
Then, they came to think that these holes had a function of scraping off the decomposition products of organic substances generated by braking and keeping the friction surface normal. From this point of view, a search was made for a potential substitute for potassium titanate whisker, rock wool, and slag wool. Such alternatives require the following properties: In other words, it is inorganic because it requires heat resistance, it is physically decomposed by the force of braking and easily falls off the friction surface, it is a low-hardness material that does not easily wear the mating rotor, and the performance of the pill shape And the like, the shape of which is as granular as that of a pill of inorganic fibers. And since vermiculite has the above properties, its particle size is examined, and, in order to improve the strength, potassium titanate plate fibers, further moldability,
By using diatomaceous earth in combination to improve the porosity, it was found that a braking friction material having excellent braking performance, and a high strength, a low frequency of cracking during use, and excellent squealing characteristics can be obtained. Reached. That is, the gist of the present invention is to provide a brake friction material containing at least a reinforcing fiber, a binder, a lubricant, a friction modifier, and a filler, and
0% by mass, containing 1 to 5% by mass of granular vermiculite having an average particle size of 0.2 to 2 mm, 5 to 15% by mass of diatomaceous earth, and 5 to 20% by mass of potassium titanate plate-like material, containing vermiculite and diatomaceous earth Is 10 to 20% by mass in the brake friction material. The brake friction material of the present invention may contain a pH adjusting material, and may further contain soft metal fibers. DESCRIPTION OF THE PREFERRED EMBODIMENTS The brake friction material of the present invention has an average particle diameter of 0.2% when the brake friction material is 100% by mass.
1 to 5% by mass of granular vermiculite of 2 to 2 mm and 5 to 15% by mass of diatomaceous earth, and the total amount of both is 1
It is 0 to 20% by mass, and it is necessary to include 5 to 20% by mass of the potassium titanate plate-like fiber as the reinforcing fiber material, when the brake friction material is 100% by mass. With such a configuration, the porosity is increased, the decomposition products generated by the high temperature during the fade test are taken into the pores, the decrease in the coefficient of friction is suppressed, and the fade resistance can be improved. In addition, as the porosity increases, the brake friction material becomes softer, suppressing vibration and suppressing generation of squeal noise. Therefore, a high-performance brake friction material is obtained without whiskers such as potassium titanate whiskers. The brake friction material of the present invention further comprises hard metal fibers such as steel, soft metal fibers such as copper fibers,
Organic fibers such as aramid fibers may be included. A phenol resin can be exemplified as the binder. Examples of the lubricant include graphite, antimony trisulfide, and molybdenum disulfide. Examples of the friction modifier include metal oxide powder such as cashew dust, ceramic powder, metal powder, and alumina powder, and rubber powder. Barium sulfate or the like is used as the filler, and calcium hydroxide or the like is used as the pH adjuster. In the present invention, if the average particle size of the granular vermiculite is less than 0.2 mm, squeal is likely to occur, and if it exceeds 2 mm, the dispersibility of the material constituting the brake friction material becomes poor, and the brake friction material becomes poor. Manufacturing becomes difficult. When the amount of vermiculite is less than 1% by mass, squeal increases. Conversely, when the amount of vermiculite is more than 5% by mass, cracks are likely to occur during the molding of the brake friction material. If the amount of diatomaceous earth is less than 5% by mass, the amount of pad wear increases, squealing increases, and fade resistance decreases. Even if the amount of diatomaceous earth is more than 15% by mass, the amount of pad wear increases, squealing often occurs, and a goo sound is easily generated. Even if both vermiculite and diatomaceous earth are within the above range, if the total amount is less than 10% by mass, there is a problem that the fade resistance and the squealing increase. If the amount of the potassium titanate plate-like fiber is less than 5% by mass, the amount of pad wear increases, and a goo sound is likely to be generated. If the amount of the potassium titanate plate fiber is more than 20% by mass, the fade resistance is greatly reduced, and the squeal becomes extremely large. Hereinafter, the present invention will be described in more detail with reference to examples. (Examples 1 to 5, Comparative Examples 1 to 8) First, after the back metal was sufficiently washed, an adhesive was applied and dried. Next, the materials shown in Table 1 were blended in the amounts shown in Table 1 and uniformly mixed.
In addition, the vermiculite in each Example of Table 1 used a mixture of granular vermiculite having an average particle size of 0.5 mm, 1.0 mm, and 2.0 mm.
1 mm and Comparative Example 2 used had an average particle size of 3.0 mm. As the reinforcing fiber, a mixture of steel fiber (average fiber diameter 50 μm, average length 2 mm), aramid fiber, and copper fiber (average fiber diameter 60 μm, average length 3 mm) was used. As the lubricant, a mixture of graphite and molybdenum disulfide was used. A mixture of cashew dust, rubber powder and alumina powder was used as a friction modifier, and calcium hydroxide was used as a pH adjuster. [Table 1] [0013] The pressure is reduced to 5 by using a predetermined mold at room temperature.
A preform was obtained by cold compression molding at 0 MPa. Next, the back metal coated with the adhesive and the preform were separated for 15 minutes.
It is charged into a mold set at 0 ° C.,
Heat compression molding (main molding) was performed for 0 to 300 seconds. Further, this heat compression molded product was heat-treated at 220 ° C. for 6 hours, polished and grooved to obtain a brake friction material (brake pad). In each of the examples, the handleability of the preform in the brake friction material manufacturing process was good, and none of the preforms collapsed during handling.
With respect to these brake friction materials, friction and wear characteristics (JASOC-406 of the Japan Society of Automotive Engineers of Japan) and abnormal noise in actual vehicles were investigated. Table 2 shows the results. In addition, the wear characteristics of the rotor were examined. Compared with the case where the brake friction material using potassium titanate whiskers was used, the friction material cracked during use when using the brake friction material obtained in each example. Was less frequent. [Table 2] [0015] In Table 2, the efficacy is a minimum value of 1 for the second efficacy.
The values at the time of 30 km / h and 8.0 m / s 2 are shown, and the fade is the minimum value of the first fade (100 km / h, 4.
5 m / s 2 , every 35 s), indicating that the larger these values are, the higher the braking effect is, or the more difficult the fade phenomenon is to occur. Further, the pad wear amount is a value per 1000 times, and a smaller value indicates that the wear amount is smaller and is better.
The number of squeals is a value per 3000 times. The brake friction material of each embodiment is excellent in handleability of a preform, and as is clear from Table 2,
Although excellent in fade resistance, friction and wear properties, squealing properties, and abnormal noise, the brake friction material of Comparative Example 1 is apt to squeal because the particle size of vermiculite is too small.
The fade value is also a low value. In Comparative Example 2, the particle size of vermiculite was too large, so that the dispersibility of the material was poor, and it was difficult to produce a brake friction material. In Comparative Example 3, since vermiculite was not included, squeal was likely to occur. In Comparative Example 4, the handleability of the preform was poor, and cracks frequently occurred during molding. In Comparative Example 5, since the amount of diatomaceous earth was too small, the fade value was a low value, the amount of pad wear increased, and squealing was likely to occur. In Comparative Example 6, since the amount of diatomaceous earth was too large, the fade value was low, and the pad wear amount was large.
There are many squeals. In Comparative Example 7, since the amount of potassium titanate plate fibers was too small, the fade value was low, the amount of pad wear was large, and a goo sound was generated. In Comparative Example 8, since the amount of the potassium titanate plate fibers was too large, the fade value was low and the squeal was very large. The brake friction material of the present invention uses potassium titanate whiskers by blending vermiculite having an average particle size of 0.2 to 2 mm, diatomaceous earth, and potassium titanate plate fibers in predetermined amounts. It has good fade resistance, high strength, low frequency of cracks during use, and excellent squealing characteristics.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小松 一成 神奈川県川崎市川崎区富士見１丁目６番３ 号 トキコ株式会社内 Ｆターム(参考） 3J058 BA21 BA46 CA02 CA42 FA01 GA22 GA26 GA40 GA73 GA92 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kazunari Komatsu 1-6-3 Fujimi, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture No. Tokiko Co., Ltd. F term (reference) 3J058 BA21 BA46 CA02 CA42 FA01 GA22 GA26 GA40 GA73 GA92
Claims (1)
摩擦調整材、及び充填材を含有するブレーキ摩擦材にお
いて、ブレーキ摩擦材を１００質量％としたとき、平均
粒径０．２〜２ｍｍの粒状バーミキュライトを１〜５質
量％、珪藻土を５〜１５質量％、チタン酸カリウム板状
繊維を５〜２０質量％含み、バーミキュライトと珪藻土
の合計量が１０〜２０質量％であることを特徴とするブ
レーキ摩擦材。Claims 1. At least a reinforcing fiber, a binder, a lubricant,
In a brake friction material containing a friction modifier and a filler, when the brake friction material is 100% by mass, 1 to 5% by mass of granular vermiculite having an average particle size of 0.2 to 2 mm, and 5 to 15% by mass of diatomaceous earth %, Containing 5 to 20% by mass of potassium titanate platelet fiber, and the total amount of vermiculite and diatomaceous earth is 10 to 20% by mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001395573A JP3810684B2 (en) | 2001-12-27 | 2001-12-27 | Brake friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001395573A JP3810684B2 (en) | 2001-12-27 | 2001-12-27 | Brake friction material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003194121A true JP2003194121A (en) | 2003-07-09 |
| JP3810684B2 JP3810684B2 (en) | 2006-08-16 |
Family
ID=27601914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001395573A Expired - Fee Related JP3810684B2 (en) | 2001-12-27 | 2001-12-27 | Brake friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3810684B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851341A (en) * | 2010-05-18 | 2010-10-06 | 东营山信新型材料有限公司 | Method for preparing brake pad by utilizing potassium titanate lamella crystal |
| WO2012004844A1 (en) | 2010-07-05 | 2012-01-12 | 三菱電機株式会社 | Brake lining and method for manufacturing same |
| JP2012518044A (en) * | 2009-02-17 | 2012-08-09 | テーエムデー フリクション サービシス ゲーエムベーハー | Brake lining manufacturing method and brake lining |
| JP2016098362A (en) * | 2014-11-26 | 2016-05-30 | 日本ブレーキ工業株式会社 | Friction material composition, friction material using friction material composition and friction member |
| JP2016121243A (en) * | 2014-12-24 | 2016-07-07 | 日本ブレーキ工業株式会社 | Friction material composition, and friction material and friction member using the same |
| JP2016121244A (en) * | 2014-12-24 | 2016-07-07 | 日本ブレーキ工業株式会社 | Friction material composition, and friction material and friction member using the same |
| JP2018002775A (en) * | 2016-06-28 | 2018-01-11 | 日立オートモティブシステムズ株式会社 | Brake friction material |
| CN110345184A (en) * | 2019-07-02 | 2019-10-18 | 重庆市宏向汽配有限公司 | A kind of production method and process flow of brake shoe assembly friction plate |
| JP2019214731A (en) * | 2019-08-08 | 2019-12-19 | 日本ブレーキ工業株式会社 | Friction material composition, friction material using friction material composition and friction member |
-
2001
- 2001-12-27 JP JP2001395573A patent/JP3810684B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012518044A (en) * | 2009-02-17 | 2012-08-09 | テーエムデー フリクション サービシス ゲーエムベーハー | Brake lining manufacturing method and brake lining |
| US8784552B2 (en) | 2009-02-17 | 2014-07-22 | Tmd Friction Services Gmbh | Method for producing a brake lining and brake lining |
| CN101851341A (en) * | 2010-05-18 | 2010-10-06 | 东营山信新型材料有限公司 | Method for preparing brake pad by utilizing potassium titanate lamella crystal |
| WO2012004844A1 (en) | 2010-07-05 | 2012-01-12 | 三菱電機株式会社 | Brake lining and method for manufacturing same |
| JP2016098362A (en) * | 2014-11-26 | 2016-05-30 | 日本ブレーキ工業株式会社 | Friction material composition, friction material using friction material composition and friction member |
| JP2016121243A (en) * | 2014-12-24 | 2016-07-07 | 日本ブレーキ工業株式会社 | Friction material composition, and friction material and friction member using the same |
| JP2016121244A (en) * | 2014-12-24 | 2016-07-07 | 日本ブレーキ工業株式会社 | Friction material composition, and friction material and friction member using the same |
| JP2018002775A (en) * | 2016-06-28 | 2018-01-11 | 日立オートモティブシステムズ株式会社 | Brake friction material |
| CN110345184A (en) * | 2019-07-02 | 2019-10-18 | 重庆市宏向汽配有限公司 | A kind of production method and process flow of brake shoe assembly friction plate |
| CN110345184B (en) * | 2019-07-02 | 2020-08-11 | 重庆市宏向汽配有限公司 | Manufacturing method of brake shoe assembly friction plate |
| JP2019214731A (en) * | 2019-08-08 | 2019-12-19 | 日本ブレーキ工業株式会社 | Friction material composition, friction material using friction material composition and friction member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3810684B2 (en) | 2006-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106085356B (en) | Friction material composition, friction material and manufacturing method thereof | |
| EP1233203B1 (en) | Non-asbestos friction material | |
| JP2005036157A (en) | Friction material | |
| JP2003238700A (en) | Nonasbestine friction material | |
| JP2004182870A (en) | Non-asbestos friction material | |
| JP2003194121A (en) | Brake friction material | |
| JP2004352813A (en) | Friction material | |
| JP2003313312A (en) | Non-asbestos friction material | |
| JP2004067884A (en) | Non-asbestos friction material | |
| JP4412475B2 (en) | Friction material | |
| JPWO2019151390A1 (en) | Friction material, friction material composition, friction member and vehicle | |
| JP4029026B2 (en) | Non-asbestos friction material | |
| JP7467465B2 (en) | Friction material composition, friction material and disc brake pad | |
| JP2001311071A (en) | Non-asbestos friction material | |
| EP0701071B1 (en) | Non-asbestos friction material | |
| JP2004316904A (en) | Friction material for brake | |
| JP2005207437A (en) | Friction material | |
| JP2001247852A (en) | Non-asbestos friction material | |
| JP2003105322A (en) | Nonasbestos friction material | |
| JP2004331861A (en) | Friction material | |
| JP2007039556A (en) | Friction material set | |
| JP2001107026A (en) | Friction material composition and friction material using this | |
| JP2002097455A (en) | Friction material composition and friction material obtained by using the same | |
| EP1225365A1 (en) | Non-asbestos friction materials | |
| JP2018002775A (en) | Brake friction material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040401 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20040405 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20041129 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060510 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060516 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060524 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090602 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100602 Year of fee payment: 4 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100602 Year of fee payment: 4 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100602 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110602 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110602 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120602 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120602 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130602 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130602 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140602 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |