355 results about "Fibre-reinforced plastic" patented technology

Embodiments of the invention relate to a stringer (108) adapted to transport fluid in an aircraft wing (100). For example, the stringer may be adapted to provide venting to one or more fuel tanks (111) in the aircraft wing, or may be adapted to provide fuel to the one or more fuel tanks. To perform this function, the stringer comprises a duct member (120) providing a duct and a structural member (121) providing an attachment surface for attachment of the stringer to a wing panel (112). Typically, the stringer is formed from a composite material such as carbon fibre reinforced plastic. A method of manufacturing the stringer is also disclosed.

This invention relates to fibre reinforced plastic (“FPR”) roofing materials with a sandwich structure. A pair of sheets of FRP are arranged with a gap between them, and a rib structure which joins the sheets is interposed. Further, this invention relates to a method for producing FRP roofing material in which channels are provided in the core material and a reinforcing fibre impregnated with a resin is distributed through these channels. A preferred joint structure for the roofing material is to use butt joints and to provide a connecting layer extending across the surfaces of both ends of the sandwich structures. A layer containing a resin distribution medium is provided between the abutting end faces. This invention overcomes various problems of conventional joint structures, permitting the ends of the sandwich structures to be easily, firmly and cheaply joined together, ensuring high joint strength and rigidity, while achieving excellent appearance.

An assembly includes a flexurally deformed panel, which is connected to a membrane tie by a linear connector and is tied by the membrane tie to form a geometrically stable pre-stressed structure. More than one panel may be flexurally deformed and tied together in an assembly and more than one membrane tie may be present within an assembly. Panels are typically semi-rigid sheet materials, for example metal sheets, plastic sheets, or sheets of composite materials, such as glass or carbon fibre reinforced plastics or resins. Membrane tie members are typically flexible, for example plastic films, fabrics or nets or arrays of rods or cables. The assemblies have many different geometric forms and many different practical applications. Assemblies may be relatively large, for example demountable and reusable shelters or flat-pack point-of-purchase display assemblies, or may be relatively small, for example a photograph or postcard display system.

The present invention provides a fibre reinforced plastics rib material. It includes fibre reinforced plastics (FRP) core layer and matrix resin impregnating fibre reinforced plastics (FRP), the peripheral surface of said core layer is axially covered with glass fibre bulk yarn reinforced plastics covering layer. Said glass fibre bulk yarn reinforced plastics covering layer can effectively increase roughness of exterior surface of the fibre reinforced plastics rib material core layer, so that the bond stress of said rib material core layer and concrete also can be raised, and the service lift of concrete member also can be raised.

A plastic core container is reinforced with a fibre-plastic composite for storing pressurized liquid and/or gaseous media and includes one or more connecting parts located in the neck and/or base and/or cylindrical container part. At least one connecting part is configured to receive a screw-in cylindrical or conical pressure-line feed device. A cylindrical insert is mounted in a connection shank of the plastic core container and has an end collar that envelops or surrounds the end of the connection shank. At least two seals are positioned so that at least one seal lies between the insert and the inner surface of the plastic connecting shank and at least one additional seal lies between the insert and the pressure-line feed device to guarantee a tight and permanent impermeability in the vicinity of the connecting parts, even under extreme, fluctuating thermal and operational stresses.

A refractory paint for the grate made of glass fibre reinforced plastics contains component A and component B, which are proportionally mixed before used. Said component A is prepared from organosilicon resin modified organic resin, high-temp stable pigment and filler, flame retarding-smoke inhibiting agent, coupling agent, solidifying promoter, and UV absorbing or shielding assistant. Said component B is polyurethane solidifying agent containing NCO. Its advantages are high resistance to high temp (900 deg.C) and weatherability and low smoke density at high temp.

Apparatus for providing an enclosure, for example as a housing or to provide buoyancy, at underwater locations is disclosed comprising an inner shell and an outer shell, with a structural filler disposed between the two. The shells are prepared from fibre-reinforced plastic, with the fibres being oriented to provide resistance to both longitudinal and radial stresses induced in the apparatus by the hydrostatic pressure. The filler may be a structural filler comprising structural members extending between the inner and outer shells and occupying less than 60% of the volume of the cavity between the two shells. Alternatively, the filler may be a substantially void-free structural filler, such as a polyester resin. Methods of fabricating the apparatus are disclosed. In addition, a method of deballasting a buoyancy module is disclosed, in which the ballast, for example water, is withdrawn from the module by means of reduced pressure. Apparatus for deballasting is also disclosed.

The present invention relates to an adhesive anchoring unit and an anchoring method for anchoring fiber reinforcement plastic bar or cable, an end cover is arranged at one end of the anchoring unit and a sleeve with a locating hole is arranged at the other end of the anchoring unit. An internal cone chamber is arranged in the sleeve, and a nut is arranged surrounding the sleeve provided with a mortar filling hole and a ventilation hole. The fiber reinforcement plastic bar or cable passes through the locating hole and one end in the internal cone chamber was cut into two halves, which are inserted with a wedge to become a wedge form. A starting section of the half of one end of the bar or cable is coated with a retaining ring and the section passing through the locating hole is coated with a thin wall aluminum sleeve tube and active powder concrete is filled in the internal cone chamber of the sleeve. The method is described as follows: after the bar or cable shaft passes through the sleeve of the anchoring unit, a pretension is required on the sleeve, and the active powder concrete is added into the sleeve. The present invention improves anchoring performances of the adhesive media and the FRP bar, therefore, the anchoring length is reduced, the structure is simple, the use is convenient, the present invention is safe and reliable, the cost is low and the PRC manufacturing and maintenance is easy.

A sheet entity, in particular for use as a skin panel for an aircraft fuselage, with a carbon fibre-reinforced plastic laminate and an aluminum-based metal laminate in the edge region, which are connected with one another by means of an adhesive bond, and thereby are electrically insulated from one another, and are stepped back by layers. Also disclosed is a fuselage cell of an aircraft with at least one sheet entity of this type.

The invention discloses a size of high-strength alkali-free glass fibre direct yarn used for a reinforced core of an optical cable, comprising coupling agent, lubricant, film forming agent A, film forming agent B, film forming agent C and a pH value regulator; the solid weight of all the materials accounts for 5 to 10 percent, the rest of materials is water, and the content of the water accounts for 90 to 95 percent of the total weight of the size; the coupling agent adopts silane coupling agent and accounts for 3 to 10 percent of the solid weight of the size; the lubricant adopts unsaturated olein lubricant and accounts for 1 to 10 percent of the solid weight of the size; the film forming agent A, the film forming agent B and the film forming agent C respectively adopts one of epoxy emulsion, polyester emulsion and polyvinyl acetate emulsion, wherein, the film forming agent C selects compound with low degree of polymerization, the combination of the film forming agent A and the film forming agent B accounts for 80 to 85 percent of the solid weight of the size, the film forming agent C accounts for 1 to 5 percent of the solid weight of the size, the pH value regulator adopts acid and accounts for 1 to 5 percent of the solid weight of the size and the pH value of the size is 2 to 8. The size has good compatibility with vinyl resin and epoxy resin and can lead the strength of the glass fibre reinforced plastic of the product to be improved.

A modular fibre reinforced plastic flange for a structural composite beam which comprises a body formed of a plurality of elongate elements arranged in an array, wherein the dimensions of the body are substantially determined by the number and arrangement of the elongate elements in the array, and a skin member at least partially surrounding the array. Also, a structural composite beam comprising the modular fibre reinforced plastic flange and a shear web connected to the skin member of the modular flange. A method of making the modular flange and beams, and a kit of parts for making the modular flange are also disclosed.

The present invention relates to one kind of molded GRP grille and its production process, and features that the molded GRP grille is produced with resin as basic material, and through adding proper amount of promoter and curing agent and glass fiber as reinforcing material, molding and curing. The resin may be one of three kinds of resin, including vinyl resin, etc; the promoter is cobalt isozincate in 0.5-3 wt% of resin; and the curing agent is butanone peroxide in 0.5-3 wt% of resin. The molded GRP grille has high strength and easy edge trimming.

The present invention relates to a lightweight structural composite, which comprises an inner core of lightweight panel encapsulated by outer layers of polymer material. Specifically, the lightweight panel consists of multiple laminations of corrugated thin metal or fibre reinforced plastic sheets kept in position by polymeric foam and/or adhesive, and enclosed in a casing of the same material. The outer layer is made up of a blend of thermosetting and thermoplastic polymers. The method of forming the composite comprises of stacking the corrugated sheets, filling the interstitial spaces with the foam, constructing the casing, the surface treatment of the panel for good adhesion to the outer polymer layer and the high temperature/pressure encapsulation of the panel with the polymer blend containing curing agents. The composite has application as replacement to wood, concrete or particle board panels used in ship docking, panels for wall, door and windows, blast-proof panels, rail sleepers and shipping pallets.

The present invention relates to a fire-resisting sound-insulating safety door and its production method. Said door mainly is formed from face layer, steel frame and reinforcing ribs. Two sides of the steel frame are equipped with two face layers, between two face layers several reinforcing ribs are set, and firmly connected together with face layers and made into one whole body. On the reinforcing ribs several holes or spaces through which several foamed cement blocks can be passed, and the interior of the steel frame is filled with foamed cement. The safety door is equipped with door handleand door lock, etc. and the described two face layers are steel plate, also one can be steel plate and another can be wood plate, plastic plate, glass fibre reinforced plastic or cement face layer.

The invention discloses a process for manufacturing a septic tank by using glass fibre reinforced plastic, relating to a method for manufacturing a composite formed septic tank, belonging to the technical field of glass fibre reinforced plastic pipeline manufacturing. The invention aims to provide a composite formed glass fibre reinforced plastic pipeline, which is low in production cost, free from water leakage, long in service life, light in weight and low in liquid conveying resistance, and a production process thereof. The process has the benefits that: glass fibre taking resin as a basic body is wound on a bushing with a manufactured core mould one by one in three different manners according to process requirements; the glass fibre has corrosion resistance, aging resistance and insulating property; a pipe wall structure is rational and advanced; the action of materials is sufficiently played; the stiffness of a product is increased; the stability and the reliability of the production are ensured; the appearance quality is good; the production cost is reduced; the production process is simplified; the production difficulty is reduced; the production benefit is increased; by using the composite forming process in the invention, the designability of the product is strong; and the comprehensive property of the product is good.

The present invention relates to a test method of a test piece destruction time in a glass-reinforced plastic pipe long-term ring-bending strain test, in particular to a test method of a test piece destruction time in a glass-reinforced plastic pipe long-term performance test. The present invention is characterized in that with the help of the conductive characteristic of corrosive liquor, a corrosion resistant and conductive first interruption electrode 11 and a second interruption electrode 12 are arranged on the two sides of the bottom pipe wall in a glass-reinforced plastic pipe test piece 5; when the glass-reinforced plastic pipe test piece 5 is charged with sulfuric acid corrosive liquor, the first interruption electrode 11 and the second interruption electrode 12 are connected through corrosive liquor, the conductive characteristic of the sulfuric acid corrosive liquor is utilized to make the external interruption pin of a microporocessor in a high level, and the microporocessor starts to record power on time; when the glass-reinforced plastic pipe test piece 5 is broken under the effect of distortion and sulfuric acid corrosion, the sulfuric acid flows out of the glass-reinforced plastic pipe test piece 5 along the fracture, the first interruption electrode 11 and the second interruption electrode 12 are disconnected, the external interruption of the microporocessor is in a low level, and the microporocessor stops timing, thus the test piece destruction time is obtained. The present invention has the advantages of reduced labor intensity, and high accuracy.

This invention is preparation of unsaturated polyester resin. The raw material is the terephthalic acid waste containing terephthalic acid 80%-90% and p-aminobenzoic acid 10%-20%. The procedure is as followings: add diatomic alcohol and catalytic composite into the terephthalic acid waste for polycondensation reaction. Add unsaturated diacid for further polycondensation. Add phenylethene for permutoid reaction. This invention's raw material is wasted washing water. The facility is the general ones for unsaturated polyester resin. The product has lower price, high quality, stability and environment-friendness. It could be used in a large scale of tube of glass fibre reinforced plastic, storage tank and instrument backing strip.

The invention provides a high-strength pretightening-force yield anchor rod of glass fiber reinforced plastic, which effectively solves the problems of small tensioning force resistance and poor anchoring effect of the original anchor rod. A metal yield ring is arranged between a nut and a tray on an anchor rod assembly. The front end of the anchor rod of glass fiber reinforced plastic is a flat-annular body, and the diameter of the flat-annular body on the front end of the anchor rod is bigger than that of the tail part of the anchor rod. The anchor rod of glass fiber reinforced plastic is effectively prevented from being broken by over-high stress, and the tail part of the rod body is prevented from being broken by applying pretightening force, thereby the torsional resistance of the anchor rod of glass fiber reinforced plastic is improved.

A fiber reinforced plastic-steel tube-concrete column relates to a construction component. The fiber reinforced plastic-steel tube-concrete column is composed of a steel tube, a round fiber reinforced plastics tube and concrete in the plastic tube, and is characterized in that the steel tube of the concrete column is made by welding of a steel plate, the round fiber reinforced plastics tube is made by winding of fiber reinforced plastic cloth on a winding machine, the round fiber reinforced plastic tube is arranged at the center of the concrete column, the geometric center of the round fiber reinforced plastic tube is overlapped with that of the concrete column, and concrete is poured in the concrete column. The present invention has the advantages of high bearing capacity, large toughness, lightweight, sound plasticity and flexibility, impact and fatigue resistance, sound shockproof, etc.