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公开(公告)号：US10801571B2
公开(公告)日：2020-10-13
申请号：US15328446
申请日：2014-07-24
发明人： Shinya Kaji , Makoto Tamura , Mitsuaki Yaguchi
IPC分类号： F16D69/02
摘要： The present invention provides a friction material used for a disc brake pad, which is able to secure the braking effectiveness and the wear resistance under the high speed and high load braking conditions while satisfying laws and regulations relating to the required amount of the content of the copper component. A friction material used for a disc brake pad, which is manufactured by forming a non-asbestos organic friction material composition, in which the friction material composition contains 1-15 weight % of ferrous sulfide (FeS) particles relative to the total amount of the friction material composition as a lubricant, and the total amount of the copper component involved in the friction material composition is less than 5 weight % relative to the total amount of the friction material composition. Furthermore, it is preferable to contain 0.3-5 weight % of flaky graphite particles with 1-100 μm of average particle diameter or the aggregates thereof relative to the total amount of the friction material composition.
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公开(公告)号：US20210231185A1
公开(公告)日：2021-07-29
申请号：US17054165
申请日：2019-04-26
发明人： Eiji Kimura , Mitsuaki Yaguchi , Junichi Imai
IPC分类号： F16D69/02
摘要： [Object]
To provide the method of manufacturing the friction material that is capable of uniformly scorching into the deep part of the surface layer of the friction material in a short period of time.
[Means to Resolve]
In the method of manufacturing the friction material including the scorching step of scorching the surface of the friction material with the laser, the friction material contains 5 to 25% by weight of one or more types of black materials relative to the total amount of the friction material composition, and the L* of the CIE Lab of the surface of the friction material before scorching is 20 to 60.-
公开(公告)号：US10138969B2
公开(公告)日：2018-11-27
申请号：US14778049
申请日：2013-03-22
发明人： Yasuki Hattori , Mitsuaki Yaguchi , Toshiya Takada
IPC分类号： F16D69/02
摘要： The present invention addresses the problem of providing a disc brake pad friction material, which is capable of securing fade resistance and wear resistance while satisfying laws relating to copper component content and for which coating by electrostatic powder coating is favorable. As a means for solving the problem, a friction agent composition, which contains 0.3-5 weight % of flake graphite particles of 1-100 μm mean particle diameter with respect to the total amount of the friction material composition as a lubricant and in which the total amount of copper components contained in the friction material composition is less than 5 weight % of the total amount of the friction material composition, is used. Preferably, the flake graphite particles are aggregates. It is also preferable that the friction material composition contains mica with a mean particle diameter of 100-400 μm.
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公开(公告)号：US09970501B2
公开(公告)日：2018-05-15
申请号：US15472219
申请日：2017-03-28
发明人： Yasuki Hattori , Mitsuaki Yaguchi , Toshiya Takeda
IPC分类号： F16D69/02 , C10M125/22
CPC分类号： F16D69/026 , C10M125/00 , C10M125/22 , C10M2201/0413 , C10M2201/05 , C10M2201/062 , C10M2201/065 , C10M2201/066 , C10M2201/084 , C10M2201/102 , C10M2201/103 , C10M2205/20 , C10M2209/12 , C10N2210/02 , C10N2210/04 , C10N2230/06 , F16D69/02 , F16D2200/0043 , F16D2200/006 , F16D2200/0065 , F16D2200/0073 , F16D2200/0086
摘要： In relation to the NAO friction material free of copper component, this invention is to provide the friction material that prevents the occurrence of metal catch while securing sufficient wear resistance. In the friction material manufactured by forming the NAO friction material composition which is free of copper component, the above-described friction material composition does not contain metal simple substance or alloy and contains, as the lubricant, metal sulfide having 600 centigrade or higher decomposition temperature to be decomposed into metal and sulfur, 2.0-5.0 weight % of graphite and a zirconium silicate as an abrasive material. Here, the metal sulfide is not a molybdenum disulfide or a tungsten disulfide. Especially, the content of the metal sulfide is preferably 0.5-2.0 weight % relative to the total amount of the friction material composition.
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公开(公告)号：US10670099B2
公开(公告)日：2020-06-02
申请号：US15766815
申请日：2016-10-03
发明人： Mitsuaki Yaguchi , Shinya Kaji , Tomomi Iwai
摘要： [Object]The present invention provides a friction material used for a disc brake pad, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that does not contain a copper component, which provides an excellent wear resistance and a highly stable braking effectiveness even after being subjected to a history of high temperatures and high loads.[Means to Resolve]The friction material composition for the friction material molding containing, as an inorganic friction modifier, 10-40 weight % of a monoclinic zirconium oxide with an average particle diameter of 1-8 μm relative to the total amount of the friction material composition, 1.5 weight % or more of a resilient graphitic carbon as a carbon type lubricant relative to the total amount of the friction material composition, and a calcined coke also as a carbon type lubricant, where total amount of the resilient graphitic carbon and the calcined coke is 2-8 weight % relative to the total amount of the friction material composition and a weight ratio of the resilient graphitic carbon and the calcined coke is 4:6-8:2. It is preferable that the friction material composition contains 2-6 weight % of the layered mineral particle as the inorganic friction modifier relative to the total amount of the friction material composition and that the layered mineral particle is mica.
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公开(公告)号：US11473638B2
公开(公告)日：2022-10-18
申请号：US17054165
申请日：2019-04-26
发明人： Eiji Kimura , Mitsuaki Yaguchi , Junichi Imai
IPC分类号： F16D69/02
摘要： [Object]
To provide the method of manufacturing the friction material that is capable of uniformly scorching into the deep part of the surface layer of the friction material in a short period of time.
[Means to Resolve]
In the method of manufacturing the friction material including the scorching step of scorching the surface of the friction material with the laser, the friction material contains 5 to 25% by weight of one or more types of black materials relative to the total amount of the friction material composition, and the L* of the CIE Lab of the surface of the friction material before scorching is 20 to 60.-
7.发明授权公开(公告)号：US10801573B2
公开(公告)日：2020-10-13
申请号：US16133561
申请日：2018-09-17
发明人： Mitsuaki Yaguchi , Masafumi Honma , Yasuki Hattori
IPC分类号： F16D69/02 , B29C43/00 , F16D65/08 , F16D65/092 , B29L31/16 , B29K277/00 , B29K509/00
摘要： To provide the manufacturing method for a copper and elemental copper free NAO friction material providing an excellent fade resistance and high mechanical strength. [Means to Resolve] This manufacturing method includes the mixing step of mixing the raw friction material compounds to obtain the raw friction material mixture, the kneading step to apply the raw friction material mixture in the sealed type kneader to knead while maintaining the melting temperature of the thermosetting resin in the kneader or higher but lower than the curing temperature (temperature to start curing) under the predetermined pressure to obtain the kneaded raw friction material, the sizing step of sizing the kneaded raw friction material to obtain the raw friction material granulation article, and the hot press molding step of filling the raw friction material sized particles in the molding die to hot press molded by the press machine.
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公开(公告)号：US10458500B2
公开(公告)日：2019-10-29
申请号：US15186385
申请日：2014-12-02
申请人： NISSHINBO BRAKE INC.
发明人： Mitsuaki Yaguchi , Shinya Kaji
IPC分类号： F16D69/02 , C08L61/14 , C08K3/22 , C08K3/30 , C08K3/32 , C08K7/06 , C08L61/06 , C08L61/34 , C08L77/10 , C08K3/04
摘要： The present invention provides a friction material for a disc brake pad, which is able to suppress chipping of an edge of the friction material that occurs under the high speed and high load braking conditions and further to suppress the deterioration of the braking effectiveness under the high speed and high load braking conditions while satisfying laws and regulations relating to the required amount of the content of the copper component. A friction material composition that contains 0.5-10 weight % of a resilient graphitic carbon particle relative to the total amount of the friction material composition as a carbon type lubricant and contains the total amount of a copper component contained in the friction material composition is less than 5 weight % relative to the total amount of the friction material composition.
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公开(公告)号：US20160069408A1
公开(公告)日：2016-03-10
申请号：US14778049
申请日：2013-03-22
发明人： Yasuki Hattori , Mitsuaki Yaguchi , Toshiya Takada
IPC分类号： F16D69/02
CPC分类号： F16D69/026 , F16D2200/0052 , F16D2200/0056 , F16D2200/006 , F16D2200/0069 , F16D2200/0073 , F16D2200/0086 , F16D2250/0046
摘要： The present invention addresses the problem of providing a disc brake pad friction material, which is capable of securing fade resistance and wear resistance while satisfying laws relating to copper component content and for which coating by electrostatic powder coating is favorable. As a means for solving the problem, a friction agent composition, which contains 0.3-5 weight % of flake graphite particles of 1-100 μm mean particle diameter with respect to the total amount of the friction material composition as a lubricant and in which the total amount of copper components contained in the friction material composition is less than 5 weight % of the total amount of the friction material composition, is used. Preferably, the flake graphite particles are aggregates. It is also preferable that the friction material composition contains mica with a mean particle diameter of 100-400 μm.
摘要翻译： 本发明解决了提供一种盘式制动衬块摩擦材料的问题，其能够在满足与铜成分含量有关的规律的同时，通过静电粉末涂料进行涂覆是有利的，其能够确保抗褪色性和耐磨性。 作为解决问题的手段，含有0.3〜5重量％的1-100μm的片状石墨粒子的摩擦剂组合物相对于作为润滑剂的摩擦材料组合物的总量的平均粒径，其中 使用摩擦材料组合物中所含的铜成分的总量小于摩擦材料组合物总量的5重量％。 优选地，片状石墨颗粒是聚集体。 摩擦材料组合物还优选含有平均粒径为100-400μm的云母。
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