公开(公告)号：US20220373052A1

公开(公告)日：2022-11-24

申请号：US17765837

申请日：2020-09-28

申请人： NISSHINBO BRAKE, INC.

发明人： EIJI KIMURA ,  MITSUAKI YAGUCHI ,  YASUKI HATTORI

IPC分类号： F16D69/02 ,  F16D65/092

摘要： [Object]
To provide the disc brake pad including the friction material having the friction surface with the scorch treatment that can provide sufficient braking effectiveness while preventing the fading phenomenon at the initial stage of the disc brake pad usage.
[Means to Resolve]
In the disc brake pad including the friction material having the friction surface with the heat history due to the scorch treatment, the friction surface has the mixed areas including the area with the large heat history of the scorch treatment and the area with relatively small heat history of the scorch treatment. The following formula needs to be satisfied where the reduction rate of the mass of the inside of the friction material without the heat history due to the scorch treatment when performing the thermogravimetric analysis of the friction material at 500 centigrade is A, the reduction rate of the mass of the friction surface area with the largest heat history due to the scorch treatment when performing the thermogravimetric analysis at 500 centigrade is B1, and the reduction rate of the mass of the friction surface area with the relatively small heat history due to the scorch treatment relative to the friction surface area with the largest heat history when performing the thermogravimetric analysis at 500 centigrade is B2. 30≤B1/A×100≤90 50≤B2/A×100 B2/A×100−B1/A×100≤60  Formula:

公开(公告)号：US20210222748A1

公开(公告)日：2021-07-22

申请号：US17214855

申请日：2021-03-27

申请人： NISSHINBO BRAKE, INC.

发明人： TAKAO TANAKA ,  TOMOMI IWAI ,  MITSUAKI YAGUCHI

IPC分类号： F16D69/02

摘要： [Object] This invention relates to a friction material used for a disc brake pad, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that contains a binder, a fiber base material, a friction modifier, a lubricant, a pH adjuster, and a filler, which satisfies requirements for the required braking effectiveness, crack resistance, and fade resistance.
[Means to Resolve] The friction material, which is made from the NAO friction material composition, which includes the binder, the fiber base material, the friction modifier, the lubricant, the pH adjuster, and the filler, where the friction modifier contains 5-30 mass % of a magnesium potassium titanate, which has the alkali elution rate of 0.1-2.5 mass %, relative to the total amount of the friction material composition. Preferably, in the friction material, the titanate is a magnesium potassium titanate, and as the friction modifier, 5-25 mass % of a zirconium oxide relative to the total amount of the friction material composition and 1-5 mass % of a fibrillated organic fiber as the fiber base material relative to the total amount of the friction material composition are contained.

公开(公告)号：US20190154094A1

公开(公告)日：2019-05-23

申请号：US16164743

申请日：2017-04-04

申请人： NISSHINBO BRAKE, INC.

发明人： TAKAO TANAKA ,  TOMOMI IWAI ,  MITSUAKI YAGUCHI

IPC分类号： F16D69/02

摘要： [Object] This invention relates to a friction material used for a disc brake pad, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that contains a binder, a fiber base material, a friction modifier, a lubricant, a pH adjuster, and a filler, which satisfies requirements for the required braking effectiveness, crack resistance, and fade resistance.[Means to Resolve] The friction material, which is made from the NAO friction material composition, which includes the binder, the fiber base material, the friction modifier, the lubricant, the pH adjuster, and the filler, where the friction modifier contains 5-30 mass % of a later crystal structure titanate, which has the alkali elution rate of 0.1-2.5 mass %, relative to the total amount of the friction material composition. Preferably, in the friction material, the titanate is a magnesium potassium titanate, and as the friction modifier, 5-25 mass % of a monoclinic crystal zirconium oxide relative to the total amount of the friction material composition and 1-5 mass % of a fibrillated organic fiber as the fiber base material relative to the total amount of the friction material composition are contained.

公开(公告)号：US20170219037A1

公开(公告)日：2017-08-03

申请号：US15500516

申请日：2015-07-22

申请人： Nisshinbo Brake, Inc

发明人： Kazuhide YAMAMOTO ,  Toshiya TAKADA

IPC分类号： F16D69/02

CPC分类号： F16D69/02 ,  F16D69/026 ,  F16D69/027 ,  F16D2200/0052 ,  F16D2200/006 ,  F16D2200/0069

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, which is able to suppress an occurrence of noise just before a vehicle stops, while satisfying laws and regulations relating to the required amount of the content of the copper component.[MEANS TO SOLVE THE PROBLEM]The friction material for the disc brake pad is manufactured by forming the NAO friction material composition that is free of the copper component, the friction material composition practically does not include an iron component but includes 15-22 weight % of a non-whisker-like titanate, relative to the total amount of the friction material composition, as a titanate, 15-25 weight % of zirconium oxide with the average particle diameter of 1.0-4.0 μm, relative to the total amount of the friction material composition, as the inorganic friction modifier, and 4-6 weight % of cleavable mineral particles, relative to the total amount of the friction material composition, as the inorganic friction modifier.

公开(公告)号：US20160298710A9

公开(公告)日：2016-10-13

申请号：US14766691

申请日：2013-06-28

申请人： NISSHINBO BRAKE INC.

发明人： YASUKI HATTORI ,  MITSUAKI YAGUCHI ,  TOSHIYA TAKADA

IPC分类号： F16D69/02

CPC分类号： F16D69/02 ,  F16D69/026 ,  F16D2200/0039 ,  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 free of copper component, the above-described friction material composition contains no metal simple substance or alloy other than copper and contains, as the lubricant, metal sulfide having 600 centigrade or higher decomposition temperature to be decomposed into metal and sulfur. Especially, the above-described metal sulfide is preferably zinc sulfide, and the content thereof is preferably 0.5-2.0 weight % relative to the total amount of the friction material composition. Also, as the lubricant, the friction material further contains 2.0-5.0 weight % of graphite relative to the total amount of the friction material composition.

摘要翻译： 关于不含铜成分的NAO摩擦材料，本发明提供了一种在确保足够的耐磨性的同时防止金属堵塞的发生的摩擦材料。 在通过形成不含铜成分的NAO摩擦材料组合物制造的摩擦材料中，上述摩擦材料组合物不含铜以外的金属单体或合金，并且含有600℃以上的分解温度的金属硫化物作为润滑剂 被分解成金属和硫。 特别地，上述金属硫化物优选为硫化锌，相对于摩擦材料组合物的总量，其含量优选为0.5〜2.0重量％。 此外，作为润滑剂，相对于摩擦材料组合物的总量，摩擦材料还含有2.0-5.0重量％的石墨。

公开(公告)号：US20140225310A1

公开(公告)日：2014-08-14

申请号：US14347614

申请日：2012-09-03

申请人： Mitsuaki Yaguchi ,  Masafumi Honma ,  Yasuki Hattori

发明人： Mitsuaki Yaguchi ,  Masafumi Honma ,  Yasuki Hattori

IPC分类号： F16D69/02

CPC分类号： F16D69/026 ,  F16D2200/0073 ,  F16D2200/0086

摘要： [Object] 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 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.

摘要翻译： 提供铜和元素无铜NAO摩擦材料的制造方法，提供优异的抗褪色性和高机械强度。 [解决手段]该制造方法包括混合原料摩擦材料化合物以获得原始摩擦材料混合物的混合步骤，将密闭型捏合机中的原始摩擦材料混合物施加到捏合步骤，同时保持熔融温度 捏合机中的热固性树脂以上，但低于规定压力下的固化温度，得到捏合的原料摩擦材料，调整捏合后的原料摩擦材料的上浆步骤，得到原料摩擦材料造粒物，热压成型 将成型模具中的原始摩擦材料尺寸的颗粒填充到由压制机热压成型的步骤。

公开(公告)号：US20140209422A1

公开(公告)日：2014-07-31

申请号：US14122666

申请日：2012-05-29

申请人： Takeshi Takayama ,  Yoshihiro Tamai

发明人： Takeshi Takayama ,  Yoshihiro Tamai

IPC分类号： F16D65/092

CPC分类号： F16D65/092 ,  C23C8/02 ,  C23C8/26 ,  C23C8/32 ,  F16D69/0408 ,  H01L2224/48091 ,  H01L2924/00014

摘要： [Summary] [Object] This invention is to provide a steel back plate and a disc brake pad for a brake pad of such as an automotive car, where the back plate improves the adhesive strength between the friction material and the back plate and the disc brake pad has sufficient adhesive strength.[Means to Resolve]The steel back plate for the disc brake pad has the compound layer with the depth of 5 μm to 20 μm that is formed by a gas nitriding method or a gas soft nitriding method on the back plate surface on which the friction material is adhered. The compound layer has a porous layer with a thickness of 40% or more than a depth of a compound layer at the front surface layer side of the compound layer and the thickness of the oxide layer formed on the surface layer is 1 μm or less.

摘要翻译： 发明内容本发明提供一种用于诸如汽车的制动衬块的钢背板和盘式制动衬块，其中后板改善了摩擦材料和后板之间的粘合强度以及盘 制动片具有足够的粘合强度。 [解决方案]用于盘式制动衬块的钢背板具有通过气体氮化方法或气体软氮化方法形成的深度为5μm至20μm的复合层，所述复合层在背板表面上形成有摩擦 材料粘附。 化合物层的厚度为化合物层前表层侧的化合物层的深度的40％以上的多孔层，表面层上形成的氧化物层的厚度为1μm以下。

公开(公告)号：US20190128355A1

公开(公告)日：2019-05-02

申请号：US16133561

申请日：2018-09-17

申请人： NISSHINBO BRAKE, INC.

发明人： Mitsuaki YAGUCHI ,  MASAFUMI HONMA ,  YASUKI HATTORI

IPC分类号： F16D69/02 ,  B29C43/00

CPC分类号： F16D69/026 ,  B29C43/003 ,  B29K2065/00 ,  B29K2277/10 ,  B29K2509/00 ,  B29L2031/16 ,  F16D65/08 ,  F16D65/092 ,  F16D2200/006 ,  F16D2200/0086 ,  F16D2250/0023

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.

公开(公告)号：US10138969B2

公开(公告)日：2018-11-27

申请号：US14778049

申请日：2013-03-22

申请人： Nisshinbo Brake, Inc.

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.

公开(公告)号：US20180313420A1

公开(公告)日：2018-11-01

申请号：US15533993

申请日：2015-11-17

申请人： NISSHINBO BRAKE, INC.

发明人： WATARU SHIMADA ,  YUJI YADOMARU ,  TSUYOSHI KONDO

IPC分类号： F16D69/02 ,  C08G59/08 ,  C08K5/315

CPC分类号： F16D69/026 ,  F16D2200/0069

摘要： [OBJECT] To provide a friction material used for a brake shoe of a drum brake utilizing for a passenger car, which continuously reduces generation of low frequency noise and provides excellent braking effectiveness and wear resistance.[MEANS TO RESOLVE] A friction material used for a brake shoe of a drum brake utilizing for a passenger car, which is manufactured by forming a friction material composition containing a binder, an organic fiber, an inorganic friction modifier, an organic friction modifier, a pH adjuster, and an inorganic filler, where the friction material composition contains no cleavable substance, 8-12 weight %, relative to the total amount of the friction material composition, of a phenolic thermosetting resin as the binder, 9-18 weight %, relative to the total amount of the friction material composition, of cashew dust as the organic friction modifier, 6-12 weight %, relative to the total amount of the friction material composition, of a rubber particle, where the total amount of the cashew dust and rubber particle is 18-25 weight % relative to the total amount of the friction material composition, and 4-10 weight %, relative to the total amount of the friction material composition, of the aluminum particle as the inorganic friction modifier. The friction material contains the phenolic thermosetting resin consists of a straight novolak phenolic resin alone and the friction material composition contains the unvulcanized nitrile rubber (NBR) particle as a part of the rubber particle or an entire rubber particle.