131 results about "Composite joint" patented technology

The present invention relates to a femoral component for use in connection with knee anthroplasty. The implant includes a support having a contoured inner bone engaging surface, and a shell affixed to the support. The shell has an outer surface spaced so as to provide an articulation surface for engaging the tibia that substantially replicates the shape of a femoral condyle, and an inner surface for receiving an outer surface of the support. The support bone engaging surface is structured to mate with a prepared surface of the distal femur and the support spaces the shell outer surface at a predetermined distance from the prepared surface.

The invention relates to aluminum matrix composites and the field of welding, specially provides a process for improving the strength of a friction stir welding (FSM) joint for discontinuously reinforced aluminum (DRA) matrix composites, which is suitable for DRA matrix composites capable of being subjected to reinforced heat treatment. The process comprises the following steps: carrying out solution treatment on aluminum matrix composites which can be subjected to reinforced heat treatment; after the quenching operation is performed, carrying out friction stir welding on the obtained object within four hours; and carrying out natural ageing or artificial aging on the obtained weld assembly in the air according to the application demands, or carrying out reinforced heat treatment again onthe weld assembly by using a commonly-used industrial process. By using the welding process provided by the invention, the weldability of DRA matrix composites can be improved obviously, the tool wear can be reduced, and the mechanical property of a composite joint can be improved.

The invention relates to a fabricated steel-wood composite joint. The fabricated steel-wood composite joint comprises a square pipe column, a steel-wood composite beam and a beam-column connecting assembly connecting the square pipe column with the steel-wood composite beam; the square pipe column comprises a connecting corner column and a connecting side plate, the steel-wood composite beam comprises an upper flange, a lower flange and a wood web plate connecting the upper flange with the lower flange, and the beam-column connecting assembly comprises a central column connecting assembly anda corner column connecting assembly. Through special structural design, under the premise of welding and bolting connection, the beam and the column are effectively connected, certain toughness and good seismic performance are achieved, components of the fabricated steel-wood composite joint can be prefabricated in a factory, the component precision is high, on-site splicing is achieved, construction is easy and convenient, the processes are reduced, and the construction cycle is effectively shortened; and by adopting a steel-wood composite structure, the utilization rate of materials of different strength is increased, through ingenious connection and cooperation, the efficient and reasonable structure new form is achieved through combination and synergy of the steel-wood structure, and the rich diversity of architectural performance is improved.

A metallic-composite joint is formed by inserting a metallic member into a slot of a pi-shaped composite preform. The preform is formed from woven carbon fiber in a binder of resin and may or may not be cured prior to assembly. An inert compliant layer is located between the legs of the preform and the metallic member. The resin binder or an adhesive is used to bond the compliant layer to the preform. The compliant layer has a coefficient of thermal expansion that more closely matches that of the preform. The properties of the compliant layer also avoid galvanic corrosion between the carbon in the preform and the metallic member.

The invention relates to the technical field of a welding device, in particular to a laser composite welding joint device, which comprises a box body, a composite welding joint, a combined plate, a big gear ring, a sleeve, a small gear and an electric motor. The composite welding joint consists of a laser welding torch and an arc torch. The electric motor drives the big gear ring to rotate through the small gear and simultaneously the sleeve tightly fixed with the big gear ring concentrically rotates together. The combined plate is fixedly connected with the hollow sleeve. The laser welding torch and the arc torch are arranged on the combined plate. The laser welding torch is arranged on a central shaft of the sleeve; consequently during a rotating process, the arc torch enwinds rotates at a 360 degrees around the laser beam of the laser welding torch. The rotating speed and the rotating angle of the composite joint can be controlled through controlling the running of the electric motor to lead the composite joint to be able to adopt the welding on a curve welding line of different curvatures or curvature changes.

The invention discloses a fabricated self-resetting concrete frame soft steel energy dissipation composite joint. The fabricated self-resetting concrete frame soft steel energy dissipation composite joint includes a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, soft steel dampers, a pre-stressed steel strand, embedded high-strength bolts and anchored steel bars, wherein the prefabricated reinforced concrete beam is provided with a beam end embedded steel sleeve, and a column end embedded steel plate is arranged at the butt-joint position between the prefabricated reinforced concrete column and the beam end embedded steel sleeve; the pre-stressed steel strand penetrates through a pre-stressed steel strand hole channel of the prefabricated reinforced concrete column, a pre-stressed steel strand opening of the column end embedded steel plate, a pre-stressed steel strand opening of the beam end embedded steel sleeve and the pre-stressed steel strand channel of the prefabricated reinforced concrete beam in sequence, so that the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam are spliced together; and the soft steel dampers are arranged on both sides of a web plate of the section steel part of the beam end embedded steel sleeve. The fabricated self-resetting concrete frame soft steel energy dissipation composite joint enables the prefabricated concrete frame structure to have excellent seismic performance and self-resetting ability under high earthquake intensity.

An apparatus for filling joints in precast concrete structures includes a core that has exceptionally low creep and conforms to ASTM D 1752 made of controlled particle size composites of recycled cellular rubber and plastic materials in the form of a rectangular slab. Holes are drilled through a central area and countersink recesses are formed around the holes. An outer coating of a thermoplastic polyurethane/polyurea elastomer system of a thickness of 0.075 inch covers the slab and countersink recesses. The coated core is abrasion and UV resistant while having the creep characteristics needed to make a dam expansion joint filler.

Composite joint for fitting at least one external member to a sandwich panel and panel integrating at least one such joint. To permit the transmission of static and/or dynamic stresses between at least one external member and a sandwich panel, into said panel is integrated at least one composite joint (10). Said joint comprises a plurality of juxtaposed, elementary, tubular cells (12), oriented in the panel thickness direction, as well as at least one stress introduction cell (12a), in which is fitted a rigid part (14) for fixing the external member. The tubular cells (12) comprise composite walls formed from braided fiber roves and resin.

The invention discloses a multibarrel tube-confined concrete column and steel beam connection joint and a manufacturing method thereof. The multibarrel tube-confined concrete column and steel beam connection joint comprises an inner steel tube, an outer steel tube, anchoring plates and steel beams, wherein the outer steel tube sleeves the inner steel tube, and steel beams are connected to the sidewall of the outer steel tube; the multiple anchoring plates are evenly arranged on the side wall of the inner steel tube, clamping grooves matched with the anchoring plates are formed in the outer steel tube, and the anchoring plates penetrate through the clamping grooves and extend out of the outer steel tube; and the extending ends of the anchoring plates and web plates of the steel beams are connected with first fixing mechanisms. The multibarrel tube-confined concrete column and steel beam connection joint is in an upper-welding and lower-bolting form, upper flanges of the steel beams andupper outer ring plates are connected through welding seams, and through reinforced concrete floor slabs, the connection welding beams can be effectively protected from being torn and damaged; and lower flanges of the steel beams and lower outer ring plates are connected through bolts, and thus the deformation capability of the composite joint under the effect of the earthquake load is enhanced.The manufacturing method of the multibarrel tube-confined concrete column and steel beam connection joint is simple and easy to operate and implement.