Abstract: The invention uses structural damping to reduce noise in brake pads in lieu of the traditional method of isolation of the noise by application of a vibration insulator. The invention eliminates the problems and costs associated with applying insulators to the brake pads. The invention geometrically alters the friction back plate to move frequencies away from the resonant frequencies, increase scattering and enhance absorption. Attenuation is greater in back plates made with the invention techniques. The geometry can be changed by machining or embossing. The benefits are substantial in that the invention will reduce costs, reduce weight, reduce noise and increase wearing thickness.

Abstract: A track brake for a rail vehicle has a plurality of elongated brake shoes affixed at intervals one behind the other to a continuous brake beam. The brake shoes have inserts incorporated in recesses inside their braking surfaces. The inserts are made of a friction-generating material that is resistant to temperatures under the braking load.

Abstract: To provide a disc brake pad for a disc brake equipped with a metal disc rotor, having a friction material that includes a fiber base material, a binder, an abrasive material, and a frictional wear modifier, which effectively minimizes a sticking problem of the friction material and the disc rotor and simultaneously provides effective fading resistance, wear resistance, and formability. The friction material includes the fiber base material, binder, abrasive material, and frictional wear modifier, and friction material has the binder of 4.5-7.0 weight % relative to the gross friction material amount, aralkyl modified phenolic resin of at least 50 weight % relative to the binder amount, inorganic particles of 1-3 weight % as the abrasive material with 6-8 of Moh's hardness and average particle diameter of 10-200 ?m. Furthermore, the friction material includes alkali metal titanate and/or alkali earth metal titanate of 20-30 weight %.

Abstract: A method of producing a brake lining assembly having a wear surface with increased wear characteristics comprises the steps of winding a metal strip, placing the wound metal strip into a brake lining cup, filling the brake lining cup with a brake lining material of powdered metal and then sintering the powdered metal thus embedding the wound metal strip into the brake lining material, forming a brake lining assembly. The metal strip has a width approximately equal to that of the brake lining assembly desired depth, and is wound into a shape and size which will fit into the brake lining cup. The wound metal strip is then placed into the brake lining cup such that the metal strip width is approximately perpendicular to the brake lining wear surface. Alternatively the wound metal strip may be produced by extrusion. The result is a brake lining assembly which is reinforced by a metallic winding structure.

Abstract: The present invention is a composite material and process to produce same. That material comprises a fibrous structure which is initially predominantly coated with elemental carbon; that fibrous structure is then subsequently predominantly coated with at least one ceramic material, e.g., boron carbide, which is non-reactive with silicon. The composite material also comprises a silicon matrix which is continuous and predominantly surrounds the fibrous structure, which has been initially predominantly coated with elemental carbon and subsequently predominantly coated with at least one ceramic material. The matrix which has a fine grain crystalline structure of predominantly 20 microns or less in size. The at least one ceramic material is discontinuous within that matrix. The fibrous material pulls out of the elemental carbon, which initially predominantly coats that fibrous structure, when the composite is subjected to fracture.

Abstract: A method for manufacturing an aluminum-based composite plate is disclosed. The method comprises the step of producing an aluminum-based composite billet. The billet production step includes reducing, by magnesium nitride, an oxide-based ceramic as a porous molded body. The reduced oxide-based ceramic has improved wettability. An aluminum alloy is then caused to infiltrate into porous sections of the reduced oxide-based ceramic to thereby provide the aluminum-based composite billet. The billet is extrusion molded into a flat plate form by using an extrusion press. Plates of desired shapes are punched from the molded flat plate by using a press.

Abstract: A braking component such as a brake pad, brake rotor, brake drum or clutch disk is comprised of a metal substrate having a friction material laminated on at least a portion of at least one face of the metal substrate, the friction material being a ceramic-metal composite comprised of a metal phase and a ceramic phase dispersed within each other, wherein the ceramic phase is present in an amount of at least about 20% by volume of the ceramic-metal composite. In particular, the braking component is a metal substrate, such as aluminum, having laminated thereto a ceramic-metal composite of a dense boron carbide-aluminum composite having high specific heat and low density.

Abstract: The back and the braking body of the brake shoe are both formed as cast iron elements. The brake shoe, mainly consisting of molded parts, allows a particularly rational manufacture by casting operations or as a composite casting in one and the same casting mold, the casting mold being divided into casting cavities for the back and the braking body by a steel sheet. Cast-in steel reinforcements may be provided as well.

Abstract: A friction material for making brake pads or brake disks is formed by mixing metallic fiber and/or aramid fibers as a main component, a filler material and a binder agent for binding the main component and the filler. The metallic fiber includes at least copper fibers and/or copper alloy fibers. The filler includes one or more inorganic substances having a plane netlike crystal structure. The inorganic substances having the plane netlike crystal structure include mica, talc, vermiculite, aluminum hydroxide, magnesium hydroxide, agalmatolite, kaolin, chlorite, sericite, iron hydroxide, and montmorillonite.

Abstract: A brake disc material which does not crack under a great braking action, such as in a large-sized truck, consisting of 0.03 percent to 1 percent of carbon, 1.2 percent to 20 percent of chromium, and 0.1 percent to 1 percent of molybdenum, the balance being essentially iron.

Abstract: A brake member integrally cast from a single melt and composed of a sliding portion and a hub portion, the sliding portion having a flaky graphite cast iron microstructure with a good damping capacity and the hub portion having a high-strength cast iron microstructure. The sliding portion which may be a drum or a rotor has a damping capacity Q.sup.-1 of higher than 16.times.10.sup.-3. It is manufactured by pouring a melt having a hyper-eutectic flaky graphite cast iron composition into a cavity of a sand mold in which a chiller is embedded adjacent to a cavity region for the hub portion.

Abstract: A brake system of a semi-metallic friction material and a braking component is characterized in that the friction material contains a metallic fiber and/or a metallic powder, a part or all of which has a lower hardness than that of the braking component.