[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.

A flexible coupling for transmitting torque between parts of a transmission shaft system comprises a tubular section of continuous-fibre-reinforced composite material which has been modified to form a living hinge section with reduced bending stiffness to allow flexion of the tubular section. The tubular section may be modified through the provision of a pattern of formations within the living hinge section. The formations may be in the form of apertures and/or recesses in the continuous-fibre-reinforced composite material to create a plurality of living hinges in the material between, in particular slots and/or grooves.

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.

A friction material presents a friction generating surface and a bonding surface facing opposite the friction generating surface. The friction material includes an organopolysiloxane resin, a plurality of fibers, and a plurality of friction particles. The organopolysiloxane resin includes siloxy units independently represented by the following formula: (R.sub.1SiO.sub.3/2) and/or (R.sub.2SiO.sub.2/2); wherein each R.sub.1 and R.sub.2 is independently selected from a monovalent hydrocarbon group having from 1 to 20 carbon atoms.

The present invention provides a construction waste filler brake pad for a friction material production process comprising the steps to be constructed. The material is sorted to remove the fiber impurities and then calcined to form a filler. The filler is calcined and cooled and then immersed soak, dehydrate and dry to produce the mixture to be mixed; all materials are fully fused and released after the barrel is generated. Construction of rubbish filler brakes friction material. The construction waste filler brake pad of the embodiment of the present invention. Rubbing material production process with advantage for the production of construction waste filler brake pads friction material thermal good stability.

A method of fabricating a friction part out of composite material, the method including densifying a carbon yarn fiber preform with a matrix including at least pyrolytic carbon and a ZrO.sub.xC.sub.y phase, where 1x2 and 0y1, the matrix being formed by film-boiling or by chemical vapor infiltration from a first precursor for pyrolytic carbon and a second precursor that includes zirconium, the second precursor being a zirconium complex including an alcoxy or carboxylate ligand bonded to zirconium.

The present invention provides straw fiber brake friction material production process including wheat straw removal. After the impurities, cut into the first preset length of the broken straw, and the broken straw cooking fat after drying. The dried chopped straw first preset length cut into second preset length broken straw, the first preset length is larger than the second preset length; second preset crushed straw immersion length of the glue pool. Dipping 0.5-1.5 hours, the ingredients of high-speed mixer to stir for 20-40 minutes, until completely fusion. After the release of barrel formation of wheat straw fiber brake friction material. The embodiment of the invention of wheat straw fiber production process of car plate friction material has produced advantages for brake pad friction material low noise and good performance.

A brake disk has a wear-reducing surface coating including a wear indicator and a friction ring. The wear indicator is a raised portion on the friction ring and is underneath the surface coating. The raised portion runs around the friction ring in the form of a wavy line, for example. The raised portion has a height which corresponds to a wear limit.

An apparatus (10) that houses functional components of a mechanical assembly includes a frame component (12) formed of a first material, the frame component (12) bearing primary load, torque or pressure applied to the apparatus (10) during operation of said mechanical assembly. The housing apparatus (10) further includes a composite reinforcement component (130) for resisting forces applied to the apparatus during operation of the mechanical assembly and an enclosure component (80) formed of a second material of lower density than the first material of the frame component (12), the enclosure component (80) covering and sealing at least the functional components of the mechanical assembly from external conditions during operation of the mechanical assembly.

A brake pad assembly having a consolidated lining comprised of an enhancement framework disposed within a tribological lining, the enhancement framework and tribological lining having substantially the same compressibility factor. The enhancement framework or tribological lining may advantageously be manufactured using an additive manufacturing technique.