摘要:
An underwater pipe assembly includes first and second pipes each of which has opposite inner and outer circumferential surfaces and an annular end face. An inner coil surrounds the inner circumferential surfaces of the first and second pipes at a junction therebetween. An annular inner cover layer covers the inner coil. An outer coil is sleeved on the outer circumferential surfaces of the first and second pipes at a position corresponding to the inner coil. An annular outer cover layer covers the outer coil. When the inner and outer coils are energized, the end faces of the first and second pipes are melted to fuse together the pipes, and the inner and outer cover layers are melted to radially fuse with the pipes.
摘要:
An adjustable shim comprises a stack of plies comprising plastics material reinforced with a three-dimensional fiber layer, the plastics material being flowable under compressive force prior to cure for adjusting the thickness of the shim. The shim may be used to fill a void between two structural components joined together. Also, a method of filling a void between two structural components using the shim. The shim is easy to handle, can easily be laid up to a variety of thicknesses, and is quick to cure (depending on the plastics material used). The three-dimensional fiber layers make the shim highly compressible prior to cure, and provide significant reinforcement to the plastics material of the plies to support compressive stresses in the shim post cure.
摘要:
A method of repairing a polymeric composite workpiece. The method comprises identifying a localized area of the polymeric composite workpiece having a defect. A plurality of three dimensional interface structures are aligned adjacent at least a portion of the localized area. The method includes applying a polymeric composite patch to the localized area such that the interface structures are disposed between the polymeric composite workpiece and the polymeric composite patch. An alternating electromagnetic field may be introduced to selectively induce localized heating of the interface structures. The localized heating softens regions of the polymeric composite workpiece and the polymeric composite patch adjacent the interface structures, causing the interface structures to penetrate a distance into the respective polymeric composite workpiece and the polymeric composite patch.
摘要:
A method for the manufacture of reinforced core composites, comprises: inserting of a pin into a foamed core material or a filled honeycomb-shaped core material, wherein the pin and the core material contain a thermoplastic polymer, or a mixture of thermoplastic polymers; the pin is heated such that as the pin is inserted the core material softens or melts at the point of insertion; and/or the core material is heated at the point of insertion such that the core material softens or melts.
摘要:
Provided are a method for connecting members together that can easily form a connection structure, which has about the same high level of connection strength over the entire range of a position of superposition, in a short time, and a connection structure. The method is a method for connecting two or more members together, at least one of which is a fiber reinforced resin member containing a thermoplastic resin and also containing a reinforcing fiber material that serves as a heating element in the thermoplastic resin, at a position of superposition. The method includes pressing the members against each other while heating the members at a position of superposition using one of induction heating or dielectric heating and thus melting the thermoplastic resin with heat generated from the fiber material that serves as the heating element, thereby connecting the members together.
摘要:
A method of fabricating a thermoplastic component using inductive heating is described. The method includes positioning a plurality of induction heating coils to define a process area for the thermoplastic component, wherein the plurality of induction heating coils comprises a first set of coils and a second set of coils. The method also includes controlling a supply of electricity provided to the plurality of inductive heating coils to intermittently activate the coils. The intermittent activation is configured to facilitate prevention of electromagnetic interference between adjacent coils.
摘要:
The invention concerns a method of connecting a first material to a second material by means of a heat-activatable adhesive material (8) in aircraft construction, wherein the adhesive material (8) is arranged between the first material and the second material and an induction heat which is adequate to activate the adhesive material (8) is generated. The first material and/or the second material and/or the adhesive material (8) have an induction heat-generating means. The induction heat-generating means is a non-woven metallic mesh and/or the induction heat-generating means (53) has an amount of carbon fibers for induction heat generation. The invention further concerns an apparatus comprising a first material and a second material, wherein the first material and the second material have a connection which can be produced by a heat-activatable adhesive material arranged between the first material and the second material, in accordance with the method in accordance with the invention.
摘要:
A container provides sealed storage for contents. The container includes a composite top member formed of a panel and a frame. The panel includes an opening for providing access to the contents of the package. The frame includes a closure member that is molded in an open position, and which can be moved to a closed position for closing the opening in the panel. The container is formed of a container body in the form of a tubular member formed to a desired shape. The container body is closed using the top member that closes a top opening of the container body, and a bottom member that closes a bottom opening of the container body.
摘要:
A method of preparing a package comprises joining a first and a second piece of material. The first piece of material comprises a multi-layered material that a mechanically stabilizing layer, an electrically conducting layer, and a weldable layer. The mechanically stabilizing layer comprises a carton material. The first piece of material is arranged so that the weldable layer can be melted by supplying energy to the electrically conducting layer. The method further pressing the weldable layer against the second piece of material, and supplying energy to the electrically conducting layer. The energy supply per time unit, to the electrically conducting layer is varied from a maximum value to a minimum value during the period of time in which energy is supplied to the electrically conducting layer. The maximum value is supplied for the initial at least 40% of the period.
摘要:
A method for electromagnetic welding of molded parts wherein a mold and at least two molded parts for coupling are placed in the mold, wherein at least a contact surface between the molded parts comprises a thermally activiated coupling means and an induction-senstive component. The coupling means is activated by heating the induction-senstive component by means of an inductor. The inductor comprises an electrical conductor which, under alternating voltage, generates an electromagnetic field which is substantially cylindrical in at least a direction of welding. The molded parts are pressed together in the configuration defined by the mold, wherein the molded parts are coupled by the thermally activated coupling means. Also disclosed is an assembly of molded parts, an inductor, an assembly of the inductor with an alternating current generator, and a device for electromagnetic welding.