Abstract:
The present invention provides a filament winding method including operation (a) of forming a first pattern layer by winding a fiber reinforcement composite material on an outer circumferential surface of a liner, operation (b) of forming a first composite layer by winding the fiber reinforcement composite material on an upper surface of the first pattern layer to form a second pattern layer, and operation (c) of forming a second composite layer by re-forming a first pattern layer on an upper surface of the first composite layer and forming a second pattern layer on an upper surface of the first pattern layer, wherein composite layers are repeatedly formed according to Expression 1, wherein CN≤5 and CN denotes the total number of the composite layers.
Abstract:
A method and an apparatus of manufacturing flexible pipe body (100) is disclosed. The method includes the step of winding at least one composite body having a substantially helical innate shape around an underlining pipe layer.
Abstract:
The present invention relates to a twisted cord for constituting a core wire of a power-transmission belt, the twisted cord including a plurality of primary twisted yarns that are bundled and secondarily-twisted, in which when secondary twist is untwisted by 25 cm, a difference in length between the longest primary twisted yarn L and the shortest primary twisted yarn S among the plurality of primary twisted yarns is 1 to 10 mm.
Abstract:
The present invention relates to an elastic pull rope used in exercise, comprising an inner tube layer with a hollow channel, a woven wire layer surrounding the outer part of the inner tube layer and an outer tube layer surrounding the outer part of the woven wire layer, wherein the woven wire layer surrounds the outer surface of the inner tube layer via a plurality of first wire rods, and weaving a plurality of second wire rods around the first wire rods in an overlapping manner in order to form and clamp the woven wire layer between the inner and outer tube layers, so that the formed elastic pull rope would have improved overall structural strength.
Abstract:
Provided is a method for manufacturing a tank and a manufacturing device thereof that can achieve resin impregnation within a short time. The method wraps fibers in an overlapping manner in a radial direction around an outer surface of a liner such that a first fiber layer (braiding layer) on an outer surface of a dome portion is less dense than a second fiber layer (helical layer) on an outer surface of a straight body portion and such that a portion of a lamina of the first fiber layer, which is less dense, is interposed continuously from the first fiber layer partially between laminae of the second fiber layer, and then impregnates the fiber layer including the first fiber layer and the second fiber layer with a resin.
Abstract:
Disclosed herein are abrasion resistant flexible hoses and methods for manufacturing such hose. The abrasion resistant elastomeric hose comprises an inner surface and an outer surface, and a abrasion resistant material embedded in the hose at a depth that imparts a three-dimensional pattern at the outer surface of the hose.
Abstract:
A carbon filter is disclosed. Such a carbon filter includes a carbon-based core having a central cavity, a layer of a polymer-based filter material surrounding the carbon-based core, and at least one end cap fixedly attached to the carbon-based core.
Abstract:
A helical winding unit includes a plurality of guides arrayed in a peripheral direction of a liner, and adapted to guide each of a plurality of fiber bundles supplied to the helical winding unit to the liner, and an opening member arranged downstream of the plurality of guides in a travelling direction of the fiber bundle, and including an inner peripheral surface for forming a hole, through which the plurality of fiber bundles are inserted from one side to the other side in the axial direction. A plurality of opening surfaces on which the plurality of fiber bundles travel while making contact are formed on the inner peripheral surface of the opening member, and a cross-sectional shape orthogonal to the axial direction of each opening surface is linear.
Abstract:
A composite shaft assembly including a core structure formed by weaving fibre(s) into an open composite structure. The assembly further includes a first end piece and a second end piece having helically shaped groove(s) and/or axially groove(s) on an outer surface of an end portion of the first and second end piece. Woven into the helical and/or axial groove(s) on the first end piece and at least partially within through hole(s) disposed at an end of the groove(s) is the fibre(s) at a first end portion of the of the core structure. Woven into the helical and/or axial groove(s) on the second end piece and at least partially within through hole(s) disposed at an end of the groove(s) is the fibre(s) at a second end portion of the of the core structure. Structural adhesive(s) are applied over the fibre(s) and allowed to cure to form the composite drive shaft.
Abstract:
A fiber composite assembly and a process of fabricating a fiber composite assembly are disclosed. The fiber composite assembly includes a first composite layer having a first fiber and a second composite layer having a second layer. The first fiber includes a helical portion and the second fiber extends to within the helical portion of the first fiber. A process of fabricating a fiber composite assembly includes elongating a wound fiber preform to form a helical fiber or positioning the first fiber in the first composite layer and positioning the second fiber in the second composite layer.