Abstract:
The present invention relates to radius fillers for composite structures, composite structures including radius fillers, and systems and method for forming the same. The systems and methods form base material for forming the radius filler and/or form the radius filler from the base material. To form the base material comprises to receive a plurality of length parts of a composite tape from a base material-forming structure by injecting the length parts from a composite tape source part; to constringe and/or combine the length parts inside the base material structure in order to make the base material; and/or picking the base material out of the base material-forming structure. To form the radius fillers from the composite structure includes to receive the base material from the radius filler-forming structure and to produce the radius fillers from the radius filler-forming structure.
Abstract:
본 발명은 복수개 종류의 섬유와, 강재소선을 이용한 복합 섬유보강 폴리머 보강근을 제작하되, 섬유를 설계 의도에 따라 섬유보강 폴리머 보강근 단면의 특정 위치에 분포시킴과 동시에, 설계된 위치에 강재소선을 배치시킨 구성의 복합 섬유보강 폴리머 보강근을 제조할 수 있는 방법과, 이를 위한 제조장치, 그리고 이를 위한 성형노즐에 관한 것이다. 본 발명에서는 성형노즐(100)을 이용하여 복합 FRP 보강근을 제조하되, 상기 성형노즐(100)은, 외측 노즐(11)과, 상기 외측 노즐(11)에 배치되며 간격을 두고 서로의 내측에 배치되는 중간 노즐(12)과, 강재소선이 관통하는 가이드부재를 포함하여 구성되어, 가이드부재를 통해서 각각 강재소선과 섬유가 공급될 때, 가장 내측에 위치하는 중간 노즐의 중앙공을 통해서 섬유와 강재소선이 공급되고, 중간 노즐 간의 간격을 통해서도 섬유가 공급되며, 중간 노즐과 외측 노즐 사이의 간격을 통해서도 섬유가 공급되어, 섬유가 FRP 보강근의 중심에서 외곽으로 갈수록 복수개의 섬유분포층을 이루면서 분포되어 있으며, 내부에는 강재소선이 배치되어 있는 단면을 가지는 복합 FRP 보강근을 만들게 되는 것을 특징으로 하는 FRP 보강근의 제조장치가 제공되며, 아울러 이를 이용하여 FRP 보강근을 제조하는 방법 및 이에 사용되는 성형노즐이 제공된다.
Abstract:
PURPOSE: An aramid strip structure reinforcing method and a structure reinforcing member of an aramid strip, which prevents the deterioration of an aramid fibrous layer by a degradation prevention layer, are provided to improve earthquake resistance by using a PC steel wire. CONSTITUTION: An aramid strip structure reinforcing method is as follows. A plurality of steel wires(10) is wrapped with a plurality of aramid fibers. A resin bath(30) penetrates through a gap between the aramid fiber and the steel wire. The steel wire and aramid fiber are pressurized into the interval of guide plates in order to form a steel wire-embedded aramid fiber layer(40).
Abstract:
The present invention relates to a method for manufacturing a hybrid fiber reinforced polymer (FRP) bar which manufactures the hybrid FRP bar using two or more kinds of fibers and distributes the fibers to specific locations on the cross section of the FRP bar according to design intentions, and to an apparatus for manufacturing the same. The present invention relates to the apparatus for manufacturing a rod shaped FRP bar made of fibers and resins using molding nozzles (100). The molding nozzle (100) is formed to have a plurality of nozzle bodies in serial in a processing direction of the fibers. In the nozzle bodies, the entrance of the nozzle body located in the front has the bigger cross section than the exit of the nozzle body located in the rear side. The present invention provides the apparatus for manufacturing the FRP bar and a method for manufacturing the FRO bar using the same which make the hybrid FRP bar having the cross section in which the fibers form more fiber layers while being distributed on the cross section of the FRP bar as the fiber moves from the center to the outside in the radius direction by providing the fibers, which are penetrated with the resins, to the entrance of a nozzle body located in front and pultruding the fibers using the nozzle body located in front when the fiber bars pultruded by the nozzle body located in rear side are entered into the entrance of the nozzle body located in front.
Abstract:
An impregnation die, comprising: a housing including an internal processing chamber and a pultrusion aperture; and a nozzle carried on said housing, said nozzle including an opening having an inlet end, an outlet end and a central axis, said inlet end being in communication with said processing chamber by means of said pultrusion aperture; said impregnation die being characterized by said opening including a first tapered section adjacent said inlet end, a first straight section downstream from said first tapered section, a second tapered section downstream from said first straight section and a second straight section downstream from said second tapered section and adjacent said outlet end.
Abstract:
PURPOSE: A drawing mold is provided to remove a parting line or a weld line because a contact surface of upper and lower molds is formed at a constant angle and a through-hole is horizontally formed. CONSTITUTION: A drawing mold comprises an upper mold(10) and a lower mold(20). The upper and lower molds respectively comprise oblique planes(11,21), through-holes(12,22), and inlets and outlets(13,23). An incline d surface of the lower mold is formed on the top and inclined toward one side. An inclined surface of the upper mold is formed on the bottom and inclined toward one side. The through-holes are formed into an oval shape on each inclined surface. Inlets or outlets of a circular shape are formed each other side becoming connected to the through-holes.
Abstract:
A continuous compression molding process and an apparatus for assembling thermoplastic composite parts from pre-formed thermoplastic resin composite laminates having tooling dies have a staggered bevel shape at an entry side of the tooling dies. The length of the bevel shape is staggered on each section between bending parts in a surface contour along the width of the edge of the entrance of the tooling dies prevents thermoplastic resin composite parts where excessive materials are inserted and finished from forming wrinkles. The length of a taper on each section according to the width of the tooling dies is aligned with a pulse advancement distance of the pre-formed molding parts.
Abstract:
PURPOSE: A curved panel manufacturing apparatus and a curved panel manufacturing method are provided to continuously produce curved panels by drawing a curved panel using a drawing unit. CONSTITUTION: A curved panel manufacturing apparatus includes a shaping unit(100), a pair of drawing units(200), a cutting unit(300), and a curved panel(400). The shaping unit shapes a curved panel using fiber impregnated into a resin. The drawing units draw the shaped panel. The drawing units are arranged along the progressive direction of the curved panel and alternately draw the curved panel. The cutting unit cut the drawn panel.
Abstract:
PURPOSE: A manufacturing apparatus of a curved panel is provided to stably produce curved panels by automatically implement operational processes with respect to curved panels for tunnels and bridges. CONSTITUTION: A manufacturing apparatus of a curved panel includes a shaping unit(100), a drawing unit(200), and a cutting unit(300). The shaping unit receives fiber impregnated in a resin and shapes a curved panel(400). The drawing unit draws the shaped panel to be continuously shaped. The drawing unit is axially fixed at a position with the same radius of curvature as the radius of curvature of the curved panel. The cutting unit cut the drawn panel.