62results about How to "Prevent lateral deformation" patented technology

The invention discloses a method for manufacturing multi-core MgB2 superconductive wires through the extrusion technology. The method includes the steps that first, precursor powder is prepared; second, the precursor powder is installed in a pipe to prepare a primary complex, and single-core wires are obtained through drawing machining; third, the precursor powder is installed in a pipe to prepare a secondary complex; fourth, the secondary complex processed through pre-heating seal welding is extruded, and multi-core rods are obtained; fifth, the multi-core rods are stripped and drawn to obtain multi-core wires, the multi-core wires are subjected to heat treatment, and then the multi-core MgB2 superconductive wires are obtained. According to the method, on the basis of a traditional power pipe-installing technology, a large single-pass machining deformation amount is adopted for manufacturing the multi-core MgB2 superconductive wires, in other words, the extrusion technology is adopted for manufacturing the multi-core MgB2 superconductive wires, because the secondary complex is in a very favorable three-dimensional stress state in extrusion, good metallurgical bonding will be achieved between different metal interfaces in the secondary complex along with the large extrusion deformation amount, the manufactured multi-core rods are high in composite strength, and the compactness and the yield strength of the multi-core MgB2 superconductive wires can be significantly improved.

A dustproof receptacle connector includes a dielectric housing, a plurality of female contacts disposed in the housing, and a slider unit installed in the housing. The housing has a receiving cavity with a front opening defined in a front surface thereof, and a pair of mounting holes defined in a rear wall of the housing communicating with the receiving cavity. The slider unit includes a dustproof cover slidably received in the receiving cavity for sealing the front opening and a pair of springs disposed on the dustproof cover. A pair of longitudinal pillars extending backwards from the dustproof cover, with the free end of each pillar slidably disposed in the corresponding mounting hole of the housing. Each spring is retained on the corresponding longitudinal pillar, with one end thereof abutting against the dustproof cover and the other end thereof abutting against the rear wall of the housing.

The invention relates to an electrical heating plate and a fabrication method thereof, in particular to a high-temperature resistant graphene mica electrical heating plate and a fabrication method thereof. The high-temperature resistant graphene mica electrical heating plate comprises a surface modification layer, an upper mica insulation layer, a graphene heating layer and a lower mica insulationlayer which are sequentially laminated from top to bottom and are hot-pressed by a hot-press machine. The high-temperature resistant graphene mica electrical heating plate employs graphene conductivepaper as a heating core layer, the mica paper with fireproof class is used as an insulation material, the electrical heating plate is synthesized by hot-pressing of a hot-press machine and by takingorganic silicon as an adhesive has the advantages of fireproof performance, high safety class, high temperature resistance (300 DEG C), high insulativity, high heating efficiency, rapid heating speed,structure stability and long service lifetime and can be used for a long time between 200-300 DEG C, the limitation of an electrical heating film and an epoxy electric coupling plate which are only used within 100 DEG C and a phenomenon that a fire is easily caused are solved, and the electrical heating plate is suitable for promotion and application.

The invention provides a vertical sliding assembly type foundation pit supporting structure and a construction method thereof. The vertical sliding assembly type foundation pit supporting structure comprises a steel stand column, a first steel sliding rail and a second steel sliding rail. A plurality of first steel slide rails are uniformly embedded in the underground diaphragm wall. The diaphragm wall reinforcing structure reinforcing steel bar mesh is welded to the diaphragm wall reinforcing steel bar mesh, and the diaphragm wall reinforcing steel bar mesh is arranged on the face, away from the first steel sliding rail, of the diaphragm wall. At least two layers of horizontal steel supporting mechanisms are arranged, each layer of horizontal steel supporting mechanism is connected with the first steel sliding rail and the second steel sliding rail in a clamped mode through a T-shaped connector, and the horizontal steel supporting mechanism on the top layer is replaced by a reinforced concrete support. According to the vertical sliding assembly type foundation pit supporting structure and the construction method thereof, supporting is conducted firstly, then excavation is conducted, one-time supporting is conducted in place, the technical problem that in the construction process of excavation while supporting, layered excavation and layered supporting, deformation of a diaphragm wall and a soil body behind the wall occurs is solved, and the overall stability of the structure is improved.

The present invention provides an aircraft assembly with a fixed structure and a high-lift device. The fixed structure has a spar, a forward part which provides a foremost edge of an aircraft wing, and a lower part which provides a lower surface of the aircraft wing. A high-lift device is downwardly movable relative to the fixed structure from a stowed configuration to a deployed configuration. The high-lift device has a forward part which provides a foremost edge of the aircraft wing and a lower part which provides a lower surface of the aircraft wing. Downward movement of the high-lift device causes progressive opening of a lateral gap between the lower part of the high-lift device and the lower part of the fixed structure. A retractable infill panel is arranged to progressively extend from a retracted configuration to an extended configuration to fill the lateral gap.

The invention relates to a production method for controlling the transverse plate shape of a high-quality carbon structural steel plate based on a single-rack wide and thick plate rolling line. The production method comprises the following steps that (1) a plate blank is heated, specifically, the thickness of the plate blank is 200-300mm, and the tapping temperature of the plate blank is controlled to be 1080-1140 DEG C; (2) rolling is conducted, specifically, the initial rolling temperature of the plate blank is 1050-1100 DEG C, the thickness of an intermediate blank is 30-200mm, different amounts of water are used for cooling the intermediate blank with different thicknesses through a water cooling device, the water cooling ending temperature is controlled to be 870-950 DEG C, and the final rolling temperature of the plate blank is 800-880 DEG C; and (3) the straightening and red returning temperature of the steel plate is controlled to be 600-700 DEG C. According to the production method, in the rolling process of the carbon structural steel plate, the low straightening and red returning temperature is obtained by integrating execution of a series of key process temperature point control measures, the high-precision transverse plate shape is obtained, and meanwhile the production efficiency of a rolling mill is not reduced; and by the adoption of the production method, the transverse unevenness of the finally-manufactured steel plate is smaller than or equal to 5mm/plate width size, and the market competitiveness is high.

The invention relates to a frame-shear wall structure formwork system and a construction method thereof. The frame-shear wall structure formwork system comprises symmetrically arranged shear walls which are connected through a plurality of crossbeams, stand columns are arranged at the joint of the shear walls and the crossbeams, longitudinal beams are vertically connected to the crossbeams, standcolumns are arranged at the joint of the crossbeams and longitudinal beams, and stairs are arranged between the shear walls, the longitudinal beams and the two crossbeams located in the middle. The shear walls comprises shear wall shaping formworks. The stand columns comprise frame column shaping formworks. The crossbeams and the longitudinal beams comprise frame beam shaping formworks. The stairscomprise stair shaping formworks. According to the frame-shear wall structure formwork system and the construction method thereof, step splicing holes and stair bottom plate connecting holes are formed in stair prefabricated side formworks; and only stair bottom plate modules and connecting pieces on step formworks need to be inserted into corresponding reserved holes in sequence in the stair formwork erection process, and then the stair bottom plate modules and the connecting pieces on the step formworks are fixed by screws and nuts, so that the frame-shear wall structure formwork system isquickly completed.

The invention discloses a process for producing a large-size quartz cylinder by a continuous melting method. The technology comprises the following steps: preheating a continuous melting furnace, adding raw materials, molding the quartz cylinder, and drawing the quartz cylinder to ensure that the quartz cylinder is slowly pulled out at a constant speed; adjusting the size of the quartz cylinder, wherein the pull-out rate of the quartz cylinder is changed by adjusting the upward supporting force and extrusion friction force between a quartz cylinder bearing mechanism and the quartz cylinder toobtain the quartz cylinder with the required size, the diameter of the quartz cylinder is 300-600 mm, and the wall thickness of the quartz cylinder is 20-100 mm; and cutting the quartz cylinder, namely cutting the quartz cylinder with stable output. The technology can be applied to semiconductor processing and high-temperature manufacturing fields.

The invention provides an anti-seismic device and an anti-seismic system of a buried pipeline. The device comprises a culvert and a sliding supporting structure. The culvert is buckled in a pipe ditchto form a space structure, and the sliding supporting structure is arranged in the formed space and can laterally slide within a certain range perpendicular to the buried pipeline axis direction. When the earthquake happens, great relative displacement of the surrounding soil body can be generated due to faulting, and within a certain range, the buried pipeline arranged on the sliding supportingstructure can laterally slide along with movement of the soil body. The sliding supporting structure is internally further provided with a spring structure with high elasticity, and deformation of theburied pipeline can be partially absorbed by the spring structure under the earthquake wave motion effect. Thus, according to the provided scheme, within a certain range, lateral deformation generated to the buried pipeline due to faulting can be effectively avoided, and influences on the buried pipeline due to the earthquake wave motion effect can be reduced.

The invention discloses a pile-supported soft soil roadbed reinforcing structure and a reinforcing method. The pile-supported soft soil roadbed reinforcing structure comprises a solidified sludge filling embankment layer, a pile-supported soft soil roadbed reinforcing layer, a pile-supported soft soil roadbed reinforcing layer and a pile-supported soft soil roadbed reinforcing layer which are sequentially arranged from top to bottom, the three-dimensional geocell reinforced cushion layer is formed by filling a three-dimensional geocell with potassium magnesium phosphate cement solidified sludge; the shallow soft soil solidification layer is formed by in-situ stirring and solidification of soft soil through a soil solidifying agent; a pile bearing structure of a cement mixing pile group; and a bearing layer; the upper end of the pile bearing structure of the cement mixing pile group extends into the shallow soft soil solidification layer, and the lower end of the pile bearing structure of the cement mixing pile group extends into the bearing layer. On the basis of the concept of using local materials and treating waste with waste, an environment-friendly sludge curing technology is introduced, and in-situ curing of soil between shallow piles is conducted, a cement mixing pile group serves as a pile bearing structure, a three-dimensional geocell replaces a two-dimensional geogrid, and sludge solidified soil serves as a reinforced cushion layer filling material and roadbed filler; the method has the outstanding advantages of improving the rib-soil interface friction force, controlling differential settlement, preventing lateral deformation and the like.

The invention relates to the technical field of forming machining equipment and specifically discloses a mariculture net cage pedal antiskid salient point forming roller. The mariculture net cage pedal antiskid salient point forming roller is used for pressing to form an antiskid structure on the surface of a sectional material and comprises a hollow roller main body taking the shape of a cylinder, and a concave pit is arranged on the circumferential surface of the hollow roller main body; two ends of the hollow roller main body are connected with flanges; a support shaft is arranged on the flanges; a passage is formed in the support shaft to communicate with the inner cavity of the hollow roller main body; a water supply joint is connected with the end part of the support shaft. The mariculture net cage pedal antiskid salient point forming roller, disclosed by the invention, can press to form antiskid salient points on the surface of the sectional material to prevent people from slipping.

The invention discloses a novel electric cabinet dehumidifying device easy to install. The dehumidifying device comprises a casing. The outer surface at the front end of the casing is fixedly providedwith an operation panel, an air outlet is arranged below the operation panel, the outer surface at the rear end of the casing is fixedly provided with a connecting rod, and a drain pipe is disposed on the outer surface at the lower end of the casing. A heat dissipation port is disposed in the outer surface at one end of the casing, and a fan is fixedly mounted in the casing at the position closeto an air outlet. A condensation module is fixedly mounted on one side of the fan, and a control module is fixedly mounted above the fan. A heater is fixedly mounted between the fan and the control module, and a temperature and humidity sensor is fixedly mounted on one side of the heater. A heat sink is fixedly mounted inside the casing at the position close to the heat dissipation port. By meansof a series of structures, the dehumidifying device achieves the advantages of safe water guiding, convenient installation and movement during use, and the use process is optimized.