A method and apparatus for fabricating a short length carbon fiber preform with a through thickness reinforcement is disclosed herein. The starting media for fabricating a net shape (e.g., annular disc) may meet specific requirements including a sufficient fiber volume and a binding mechanism compatible with the needle-punching process.

The invention relates to a device and a method for the thermal treatment of friction linings by means of IR-radiation, characterized in that IR radiators or IR heating fields are used as a source of infrared radiation, said radiators or heating fields generating IR-radiation in the wavelength range of 2260 nm to 3000 nm.

A rubber molded product such as a brake cylinder diaphragm with a balanced elongation substrate reinforcement in both the warp and fill directions incorporated therein is provided. The fabric substrate reinforcement is woven without size and overfed after the weaving process leading to balanced crimp and elongation in the length and width directions. The fabric member is also woven with a reduced number of weft threads to start, but which are added back by overfeeding to further render the fabric elongation more isotropic in at least the warp and fill directions. The reinforcement substrate is placed in the mold along with the molding material and formed into the desired shape to assist in shape retention and overall structural stability. A method of forming a molded product including a balanced crimp reinforcement substrate is also provided.

A component of a slip assembly is formed by rolling sheet molding compound into a rolled charge. The rolled charge is positioned in a compression molding press and compressed to produce a molded element. The molded element is removed from the compression molding press and can be machined for use as the component of the slip assembly. The component can be a slip segment or can be a cylindrical body for the slip segment. The compound layers in the molded component can be oriented in a number of different orientations in the component and can increase the overall strength of the component.

A friction pad (12) for inhibiting movement of a device (10), e.g., a portable electronic device, relative to an engagement surface (16) includes a pad body (18) having a first body surface (20) and an opposed second body surface (22). The first body surface (20) is configured to be coupled to an outer surface (14) of the portable electronic device (10), and the second body surface (22) is configured to engage the engagement surface (16). The pad body (18) is formed at least in part from a body material (18A) including high-density polyethylene. Additionally, the second body surface (22) of the pad body (18) has a static coefficient of friction of at least approximately 0.60.

A method for the production of braking elements for vehicles, in particular brake pads, includes a die forming step by means of fine and/or traditional shearing of a metal support and a molding step upon the metal support of a block of friction material. The friction material is selected from the group of asbestos free materials, while the metal plate is made of an aluminum alloy selected from the group consisting of aluminum alloys subjected to precipitation hardening (age-hardening alloys) and is made from the fine and/or traditional shearing of a metal sheet when the alloy is in a solubilized state. The alloy is not age hardened until a friction material baking step in order to gain the mechanical properties needed for its operation.

In some examples, a method includes depositing a mixture including a resin and an additive powder via a print head of a three-dimensional printing system to form a carbon fiber preform including a plurality of individual carbon fiber layers, wherein each individual layer of the plurality of individual carbon fiber layers includes a plurality of carbon fibers and the mixture of the resin and the additive powder.

An elevator brake wedge is provided and includes an elongate body having first and second generally opposed major surfaces and first and second generally opposed minor surfaces. The second minor surface has a greater length than the first minor surface. Each of the first and second major surfaces extends between corresponding first and second ends of the first and second minor surfaces, respectively. The second major surface defines low-friction film securing grooves extending from a plane of the second major surface into the elongate body.

Method for the production of braking elements for vehicles, in particular brake pads, including a die forming step by means of fine and/or traditional shearing of a metal support and a molding step upon the metal support of a block of friction material; the friction material is selected from the group of asbestos free materials, while the metal plate is made of an aluminum alloy selected from the group consisting of aluminum alloys subjected to precipitation hardening (age-hardening alloys) and is made from the fine and/or traditional shearing of a metal sheet when the alloy is in a solubilized state; the alloy, being aged during a friction material baking step, gains its mechanical properties needed for its operation.

A composite friction unit of a three dimensional composite body is formed in a system for continuous process manufacturing of composite friction units. The system uses a plurality of rolls of reinforcing fiber fabrics, a resin dispensing system that receives a panel of reinforcing fiber fabric from each one of the rolls and separately dispenses resin through a plurality of dispensing tubes, each associated with a different panel, onto a surface of each panel. A forming die is positioned to receive the plurality of panels of reinforcing fiber fabric after resin is dispensed onto the panels and is configured to form a composite panel from the plurality of panels of reinforcing fiber fabrics. A cutting mechanism cuts a desired shape part from the composite panel.