Abstract: [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 ?m relative to the total amount of the friction material composition, 1.

Abstract: [Object] To provide a friction material, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition, used for a disc brake assembled in such as a passenger car, which does not degrade the inhibitory effect of rusting and prevents seizure due to corrosion even if the automotive while the parking brake in operation is left under a high humidity state for a long period of time. [Means to Resolve] A friction material, which is manufactured by forming the NAO friction material composition including a binder, a fiber base material, a friction modifier, a lubricant, a pH adjuster, and a filler, where the friction material composition contains 2-6 weight % of alkali metal salt and/or alkaline earth metal salt as the pH adjuster relative to the total amount of the friction material composition, 1-7 weight % of fibrillated organic fiber as the fiber base material relative to the total amount of the friction material composition, and 0-0.

Abstract: 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.

Abstract: [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.

Abstract: 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.

Abstract: [OBJECT] 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. [MEANS TO SOLVE THE PROBLEM] 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.

Abstract: [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.

Abstract: To provide a low-cost friction material which is able to secure the required braking performance, the fading resistance, the wear resistance, and the adhesive strength between the friction material and the back plate while satisfying laws and regulations relating to the required amount of the content of the copper component contained therein. The friction material for the disc brake pad which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that includes no copper component, in which the friction material composition includes no titanate but includes (a) 8-15 volume % of an inorganic friction modifier having the average particle diameter of 0.

Abstract: To provide a low-cost friction material which is able to secure the required braking performance, the fading resistance, the wear resistance, and the adhesive strength between the friction material and the back plate while satisfying laws and regulations relating to the required amount of the content of the copper component contained therein. The friction material for the disc brake pad which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that includes no copper component, in which the friction material composition includes no titanate but includes (a) 8-15 volume % of an inorganic friction modifier having the average particle diameter of 0.

Abstract: 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.

Abstract: 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.

Abstract: The present invention addresses the problem of providing a friction material for a disc brake pad, which is able to secure effective braking performance and wear resistance during the high speed and high load braking while satisfying laws and regulations relating to copper content. The solution to this problem is using a non-asbestos organic (NAO) friction material for a disc brake pad, which is formed by molding a friction material composition comprising a fiber base material, a binder, and a friction modifier, and specially comprising, as an inorganic friction modifier, 1-10 weight % of one or any combination of two or more of aluminum particles, aluminum fibers, alloy particles mainly containing aluminum, and alloy fibers mainly containing aluminum relative to the total amount of the friction material composition, 5-20 weight % of hard inorganic particles with an average particle diameter of 1-20 ?m and a Mohs hardness of 4.5 or more, and copper content of less than 0.5 weight %.

Abstract: 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.

Abstract: 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 ?m 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 ?m.

Abstract: [Object] To provide the functional material for acoustic equipment of this invention made by molding and curing the resin composition consisting of a thermosetting resin and a filler shows superior sound performance to the conventional material. [Means to Resolve] The functional material for acoustic equipment made by molding the resin composition consisting of the thermosetting resin and the filler, where a specific gravity of the molded material is between 1.5 and 5.0, the porosity of the molded materials is between 2% and 20%, and the average pore size of the materials is between 0.1 ?m and 3.0 ?m. The resin composition has 5-25 weight % of the thermosetting resin relative to the entire amount of the resin compositions and the filler of the resin composition partially includes 10-35 weight % of the porous filler (preferably having micro porous structure) relative to the entire resin composition.

Abstract: To provide the friction material comprising the fiber base, the binder, and the friction modifier and being produced by forming the NAO friction material composition containing at least one type of material that elutes the sulfate ion, which secures the preferable wear resistance and restricts seizure due to corrosion. The friction material composition contains a hydrophilic activated carbon as the friction modifier. The hydrophilic activated carbon has an average particle diameter of 80-200 ?m and an amount thereof is 0.4-5.0 weight % relative to the total amount of the friction material composition. Also, the friction material composition contains 8-12 weight % of a hydrophilic phenolic resin as the binder relative to the total amount of the friction material composition.

Abstract: To provide the drum brake with the automatic shoe clearance adjustment apparatus to reduce the cost of the drum brake as reducing the number of components. The first engagement portion is provided between the brake lever and the strut body to engage the brake lever and the strut body without operating the service brake, and the second engagement portion is provided also to engage the brake lever and the strut body while automatically adjusting the shoe clearance.

Abstract: [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.

Abstract: [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 ?m to 20 ?m 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 ?m or less.

Abstract: To provide a manufacturing method for a disc brake pad using a forming die to form a final inclined surface on a friction material, where the resulted friction material is entirely uniform even if the flowability of the powdered raw friction material is insufficient. The method for manufacturing a disc brake pad includes the steps of preliminarily forming a preliminarily formed product by pressurizing without heating the powdered raw materials in a metal preliminarily forming die, and forming the final inclined surface on the friction material using a metal forming die with an inclined surface, the step of preliminarily forming including forming a temporary inclined surface, having a larger angle than the final inclined surface of the friction material, on the preliminarily formed product at an opposite side thereof to be fixed to a back plate, and forming a recess portion on the preliminarily formed product at a side thereof to be fixed to the back plate.