32results about How to "Contact flat" patented technology

The invention relates to a rotatable bridge frame. The rotatable bridge frame comprises a rotating mechanism, a climbing mechanism, an operating platform and a driving mechanism. The climbing mechanism comprises a space support, an upper end cover and a lower end cover, wherein the space support is arranged vertically, and the upper end cover and the lower end cover are up-and-down opposite to each other; through holes are formed in both the upper end cover and the lower end cover, and the upper end cover and the lower end cover are arranged on the space support in a sleeving mode through the through holes and are detachably connected with the space support; the rotating mechanism comprises a frame and a connecting part, wherein the frame is in a cylindrical shape and arranged vertically, the connecting part is fixed to the frame, and the frame is arranged on the space support between the upper end cover and the lower end cover in a sleeving mode; the frame is fixedly connected with the operating platform through the connecting part; and the driving mechanism drives the frame to rotate around the space support. According to the rotatable bridge frame, angle adjustment can be conducted on high, constructing efficiency is effectively improved, and constructing safety is guaranteed.

The invention discloses a zinc oxide nanorod array / polyvinyl carbazole / graphene hybridized fiber-shaped ultraviolet light detector based on interface optimization and a preparation method thereof. The preparation method comprises the following steps of using a fine metal wire as a substrate, growing a zinc oxide nanorod array at the surface of the ine metal wire in the vertical direction, uniformly covering the surface of the zinc oxide nanorod array with a polyvinyl carbazole thin layer, and coating the outer surface of the polyvinyl carbazole thin layer with a single layer of graphene thin film, wherein a fine sliver wire leading-out electrode is blended in the graphene thin film. The preparation method has the advantages that the problem of poor interface contact in the traditional fiber-shaped detector is solved, the surface-contact surface electrode is used for replacing the line-contact surface electrode, and the property of the detector is improved.

The invention relates to a flexible circuit board as well as a hot-pressed device and a method for manufacturing the same. The flexible circuit board comprises a main part and a contact part, wherein the contact part is arranged at one end of the main part; the main part comprises a first insulation layer, a plurality of conductive lines and a protecting layer; the conductive lines are arranged between the first insulation layer and the protecting layer; the contact part comprises a second insulation layer connected with the first insulation layer of the main part; the second insulation layercomprises a contact surface and a bottom surface opposite to the contact surface; the surface of the contact surface is provided with a plurality of conductive terminals for being electrically connected with an external line; the conductive terminals are electrically connected with the conductive lines of the main part, and a reinforced layer is covered on the bottom surface. The invention has simple structure, simple and convenient assembly and multiple functions. The flexible circuit board is difficultly influenced by the thermal expansion factor and can improve the press precision when being pressed with an external electronic element.

Various embodiments disclosed related to sealant tape. The sealant tape can include a cured product of a sealant composition including a curable liquid that includes a polysulfide, a polythioether, acopolymer thereof, or a combination thereof. The sealant composition also includes a curing agent for curing the curable liquid. Various embodiments provide cured products of the sealant composition,sealant tapes including the cured product, and sealant tapes including any suitable material with an adhesive pattern thereon.

The invention relates to the technical field of building construction, in particular to a small coiled material automatic unrolling trolley and a method for unrolling a coiled material. The small coiled material automatic unrolling trolley comprises a moving chassis. One end of the moving chassis is connected with a traction advancing mechanism, and the other end of the moving chassis is connected with a coiled material laying-pressing mechanism. The coiled material laying-pressing mechanism comprises a laying-pressing platform connected with the moving chassis. The lower end of the laying-pressing platform is in coupling connection with a laying through roller. A coiled-material-wound storing roller is erected on the laying-pressing platform through a storing support. One end of the coiled material is wound around the storing roller, and the other end of the coiled material covers the laying through roller and is pressed on the ground through the bottom end of the laying through roller. By means of the laying-pressing mechanism and a spray nozzle, the problem that the coiled material needs to be manually heated and then laid on the surface of a building, so that the working efficiency is low, and when the surface of the building is uneven, large gaps usually exist between the coiled material and the sinking parts or protruding parts of the building is solved.

The invention discloses a pressure cell fixing device for measuring the tunnel surrounding rock pressure and a construction method. The device comprises an annular rubber ring which is arranged on anouter ring of a pressure cell and used for fixing the pressure cell; the bottom of the pressure cell is supported by a base support; the base support and the rubber ring are arranged in an anti-sideslip outer sleeve, and the angle of the pressure cell and the fitting degree of the pressure cell fitting into the surrounding rock surface are adjusted through adjusting bolts; the anti-sideslip outersleeve is connected with a lifting sleeve which sleeves a base fixing rod, and the bottom of the base fixing rod is fixed to a fixed base.

The invention discloses a three-layer nanopore thin film and a preparation method and application thereof. The preparation method comprises the following steps that a base plate is provided, two-layerSi3N4 / SiO2 nano thin films deposit on the surfaces of the two sides of the base body, a layer of Si3N4 thin film deposits on the top SiO2 thin film layer, the thin film on one side of the base boy isetched to form a base body releasing window, the base plate is etched so that the three-layer nano thin film can be obtained, reactive ion etching is adopted to etch the Si3N4 thin film on the releasing window of the base body to achieve thinning, a suspended three-layer nano thin film structure is obtained, and helium ion beams are used for carrying out etching so that a three-layer nano throughhole can be obtained. According to the preparation method for the three-layer nanopore thin film, an Si3N4 / SiO2 layer is formed through deposition, the Si3N4 top layer is formed through atom deposition or molecule vapor deposition, the thicknesses of all layers are uniform and controllable, contact faces between the layers are flat, the quality of the thin layer is stable, the preparation methodis easy in operation, it does not need to thin the deposition layer, the production efficiency is improved, and the production cost is saved.

The invention relates to a solenoid drive self-adaption thermal transfer ribbon printing mechanism which comprises a rack, a printer component, a thermal transfer ribbon and a base plate, wherein the printer component is arranged at one side of the rack, the base plate is arranged at the other side of the rack, and the thermal transfer ribbon is located between the printer component and the base plate; when a printing command is inputted to the printer component, and an electromagnetic drive mechanism drives a printing head to move to the direction of a print medium and close up to an elastic gasket, the printing head swings automatically under the support of a pin shaft, so that the thermal transfer ribbon and a printed object are completely flat to each other in the width direction of a printing breadth of the printing head, and the pressure is uniform, a printed stamp is even in depth and clear. Through the concrete design, the mechanism provided by the invention has the advantages of simple structure, convenient adjustment, reliable operation and the like.

The invention discloses a preparation method of a water-based PVDF-coated lithium-ion battery diaphragm. The preparation steps are: adding a dispersant and a thickener to water, stirring evenly, adding PVDF, and merging the PVDF into water to prepare a suspension Add water-based UV resin, water-based binder, photoinitiator, polymerization inhibitor to the remaining water, disperse evenly, then import PVDF suspension, disperse evenly to prepare PVDF slurry; PVDF slurry is coated on corona One or both sides of the treated lithium-ion battery base film form a dot-matrix distributed coating, and cure the finished product. The advantages are: using water-based UV light curing technology, the coating can be dried immediately, with lower energy consumption, and there is no need to worry about the deformation of the diaphragm due to heat and tension. The drying time of the diaphragm coating can be reduced to 8‑15s, which is conducive to continuous and stable mass production.

The invention discloses a radio frequency power transistor based on an inversion process and a forming method thereof. The method comprises the following steps of: providing a substrate; forming a transition layer; forming a source connecting wire, a drain connecting wire and a gate connecting wire; forming interlayer dielectric layers on the transition layer, and filling the interlayer dielectric layers between the connecting wires; forming metal contact layers on the interlayer dielectric layers, and connecting the metal contact layers with the connecting wires; etching the metal contact layers to form N sources, N drains and 2N-1 gates, which are parallel mutually, wherein the sources, the gates and the drains are adjacently arranged sequentially according to the order of source-gate-drain-gate, the N sources are connected with the source connecting wire, the N drains are connected with the drain connecting wire, and the 2N-1 gates are connected with the gate connecting wire; forming a gate dielectric layer; and forming a graphene thin film as a channel layer. According to the method disclosed by the invention, the inversion process is adopted, the implementation is easy, and the method is stable and reliable; and the device disclosed by the invention has an inversion structure, the source-drain contact is small, and the gate control ability is strong.