A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.

Composite fibers created by a process including vertically texturizing and impregnating resin into the fibers at controlled viscosity results in stronger fibers in which virtually no microbubbles are trapped resulting in improved tensile strength for use in reinforcing concrete and other materials.

Disclosed are a method of spinning a continuous fiber without a mandrel to manufacture a hollow cylinder part and an apparatus for manufacturing the hollow cylinder part using the same method.

A method of forming a fiber-reinforced molding compound. The method includes establishing a melt stream of a source material and dosing a composite material into the melt stream. The composite material includes carbon reinforcing fibers pre-impregnated by a polymeric material. The composite material has at least 30% of the fibers protected by the polymeric material. The method further includes forming a molding compound from the source and composite materials, dispensing the molding compound from the extruder, and using the molding compound to produce a part.

A method of forming a fiber-reinforced molding compound. The method includes establishing a melt stream of a source material including a first polymeric material and dosing a composite material into the melt stream. The composite material includes pre-impregnated reinforcing fibers and a second polymeric material. The method further includes forming a molding compound from the source and composite materials and dispensing the molding compound from the extruder. The first and second polymeric materials are different than each other to introduce a functionality into the molding compound that is not present in the second polymeric material. The method further includes using the molding compound to produce a part.

Components may be manufactured by co-extruding a polymer filament and a fiber filament from a nozzle. The polymer filament and the fiber filament may be heated within the nozzle, which may couple the polymer filament to the fiber filament. The co-extruded filament may result in long reinforcing fibers which provide strength to the components.

The present invention relates to a toothed belt containing tooth parts that are disposed at predetermined intervals along a belt longitudinal direction, a cord, and a back side that has the cord embedded therein, in which the cord contains a Lang-twisted glass fiber, an adhesion treatment layer, and an overcoat treatment layer, the overcoat treatment layer is formed on a surface of the adhesion treatment layer, the back side is composed of a rubber composition, and the rubber composition contains from 5 parts by mass to 20 parts by mass of a plasticizer based on 100 parts by mass of a rubber component.

A method and a system for making a rotor slot cell by pultrusion are presented. The slot cell is positioned in a rotor slot between a rotor winding and a rotor body for insulation. Reinforcement material is pulled from a roving and passes through a resin tank for impregnation with resin mixture in the resin tank. The impregnated reinforcement material is cured in a die having a shape of the rotor slot. The cured reinforcement material is pulled from the die and cut to a predefined dimension for making the slot cell. The method significantly reduces cycle time for manufacturing slot cells and increases product output.

A flexible pipe body and method of producing a flexible pipe body are disclosed. The method includes providing two or more non-bonded composite filaments (302) as a non-bonded filament bundle (310); applying a braid element (304) around the filament bundle (310) to thereby form a braided bundle (310) comprising non-bonded filaments (302); and helically wrapping the braided bundle (310) around a flexible pipe body layer (502).

A method of manufacturing a power transmission belt includes: molding and vulcanizing an endless tension member layer in which a cord extending in a belt length direction is embedded; molding and vulcanizing a rubber member for a compressed rubber layer; and bonding together the tension member layer that has been vulcanized and the rubber member, that has been vulcanized, for the compressed rubber layer.