700results about How to "Fill in the gaps" patented technology

The invention discloses a wavelength conversion device and a related light emitting device thereof. The wavelength conversion device comprises a substrate, a reflecting layer and a light emitting layer which are superimposed in sequence. The light emitting layer contains a wavelength conversion material and a second binder. The reflecting layer contains reflecting particles, auxiliary particles and a first binder, wherein the reflecting particles are used for reflecting light, the auxiliary particles are used for filling the gaps of the reflecting particles, and the first binder is used for binding the reflecting particles and the auxiliary particles into a layer. The reflecting layer not only ensures high reflectivity, but also achieves small thickness. Therefore, heat generated by the light emitting layer can be better transferred to the substrate through the reflecting layer, and reduction of light conversion efficiency due to too high temperature of the light emitting layer is avoided.

The invention relates to the field of coatings and particularly relates to an aqueous composite zinc-aluminum anticorrosion coating. The aqueous composite zinc-aluminum anticorrosion coating comprises, by weight, 40-65 parts of zinc-aluminum alloy powder, 2-5 parts of a passivating agent, 10-18 parts of a binder, 25-45 parts of a dispersing agent, 0.5-5 parts of a wetting agent, 5-15 parts of a filler, 0.5-2 parts of an additive and 100 parts by weight of a solvent. The filler comprises one or more of nano-silica, nano-titanium dioxide, nano-zinc oxide, modified graphene, nano-alumina, mica powder, talc powder, calcium carbonate, barium sulfate, kaolin, aluminum silicate and nano-cerium oxide. The solvent is a mixture of ethanol and water. The content of ethanol is 20wt% to 50wt%.

The invention discloses an evaluation device and an evaluation method for simulating damage of cementing slurry to reservoirs. The device mainly comprises an upper kettle 15, a lower kettle 21, a middle component 19, a core clamp 20, a variable frequency motor 11, an upper kettle high-pressure pump 32, a confining pressure pump 29, a lower kettle high-pressure pump 28, a central processing system 33, a data display system 34, a formation water middle container 9, a working solution middle container group, a waste liquid collecting kettle 6, a liquid collecting tank 24, a kettle heating and cooling system 16, an upper kettle temperature sensor 30, a lower kettle temperature sensor 26, an upper kettle pressure sensor 31 and a lower kettle pressure sensor 27. The device simulates damage of various working solutions to the reservoirs under complicated working conditions such as different temperature, pressure and loss in the drilling and completion process, and a cement slurry system matched with underground environments and other working solutions is optimally selected. According to the device, cementing quality can be effectively improved, and high-efficient mining of oil and gas wells is achieved.

The invention relates to an intelligent battery. The intelligent battery comprises a battery shell, a layered battery cell, a positive electrode, a negative electrode, an embedded multi-source sensorgroup and an intelligent chip, wherein the battery shell, the layered battery cell, the positive electrode and the negative electrode are arranged on a common battery. According to the intelligent battery provided by the invention, by adopting the intelligent chip and the embedded multi-source sensor group, the core pressure, the core temperature, the current and other working information of the battery can be detected in real time, so that the real-time monitoring of the working state and the safety state of the battery is realized, and the safety of the battery is improved on the basis of realizing the self-sensing function of the battery. Therefore, the use safety and reliability of the battery are improved. Moreover, according to the intelligent battery provided by the invention, the traditional battery structure is modified by adding the intelligent chip and the embedded multi-source sensor group, so that the blank state of research on research on research and development, manufacturing, production and the like of the intelligent battery is filled up on the premise of ensuring that the volume of the battery is not changed.

The invention relates to an inorganic functional coating for degrading formaldehyde by negative ions and a preparation method of the coating. The coating comprises a component A and a component B, wherein the component A contains negative ion powder. The coating is high in abrasion resistance, hardness and high-temperature hot hardness, adhesive force and peeling strength and can be abraded for 9 hours, cross-linking density is greatly enhanced and compactness of the coating is increased as the coating is compounded with inorganic materials with different particle sizes, gaps among large-particle-size raw materials are filled up as the raw materials with different particle sizes are mixed, thermal stress dispersion among the large-particle-size raw materials is absorbed and buffered by small-particle-size raw materials, thermal stress concentration of the small-particle-size raw materials is resisted and isolated by the large-particle-size raw materials, the coating is environment-friendly and green, VOC (volatile organic compound) is avoided, a large number of negative ions can be generated, and the coating is superior to other products in the field.

The invention relates to a double-outer-lead-terminal coil winding machine and a winding process. The winding machine structurally comprises a coil sorting component, a mechanical arm component, a left rotating and winding component, a right rotating and winding component, a clutch drive component, a machine base and a program controller. The left rotating and winding component and the right rotating and winding component are arranged on a base, and rotating shaft components in the left rotating and winding component and the right rotating and winding component are coaxially and oppositely arranged; the left rotating shaft of the left rotating and winding assembly is further fixedly provided with a rectangular rotation block provided with a pre-wind-up component. The winding process of the double-outer-lead-terminal coil winding machine includes the steps of system resetting, coil feeding, pre-winding-up, winding and demoulding. By means of the double-outer-lead-terminal coil winding machine and the winding process, double-outer-lead-terminal coils can be machined and produced conveniently and rapidly, and production efficiency is high.

The invention relates to the technical field of shaves, in particular to a floating type shaver. The floating type shaver comprises a head portion, a housing, a main shell, a first floating component and a second floating component, wherein the first floating component is provided with a first through hole, and the second floating component is arranged in the first through hole. A second through hole is formed in the second floating component. A containing groove for containing the first floating component is further formed in the main shell in a sunken manner. A pair of first parent pivot-joint portions are arranged at the left side and the right side of the first floating component. A pair of first son pivot-joint portions matched with the first parent pivot-joint portions are arranged in the containing groove. A clamping component is further fixedly arranged at the bottom of the first floating component. The clamping component is provided with clamping pieces which extend into the front side and the rear side inside the first through hole in a protruding manner. The clamping pieces are provided with a pair of second parent pivot-joint portions. The second floating component is provided with a pair of second son pivot-joint portions matched with the second parent pivot-joint portions. A first elastic sleeving component is mounted between the first floating component and the containing groove, and a second elastic sleeving component is mounted between the second floating component and the housing. According to the floating type shaver, by means of the double son pivot-joint portions, the double parent pivot-joint portions and the double elastic sleeving components, 360-degree rotation can be achieved; and the effect achieved when the shaver is attached to the face in a floating manner is good.

The invention discloses an environmentally friendly surface sizing agent capable of improving paper smoothness and barrier property and a preparation method and application of the environmentally friendly surface sizing agent. The method comprises the following steps: (1) preparation of micro-nano celluloses: pretreating bleaching wood pulp by a mechanical method, and carrying out enzymolysis treatment, nano grinding and homogenization treatment on the pretreated material to obtain the micro-nano celluloses; and (2) preparation of the surface sizing agent: pasting cationic starch under heatingand stirring conditions at first, cooling to a certain temperature, then adding the micro-nano celluloses, and continuously stirring at the temperature until the material is uniform to obtain the environmentally friendly surface sizing agent. An application process comprises the following steps: sizing paper by using a roll coater, naturally air-drying the sized paper, carrying out press polish treatment on the dried paper, and detecting influences of the sizing agent to the surface performance of the paper. By the disclosed environmentally friendly surface sizing agent with micro-nano cellulose / starch, the smoothness and barrier property of paper can be improved effectively.

The invention relates to a phase-change metal thermal interface composite material and a preparation method thereof. The phase-change metal thermal interface composite material comprises a porous middle metal layer, two microporous metal layers respectively arranged at two opposite sides of the porous metal layer, and phase-change metal, wherein the the porous middle metal layer and the two microporous metal layers are filled with the phase-change metal. The composite material has the advantages that the porous middle metal layer serving as a structure supporting layer can bear certain pressure to ensure that the phase-change metal in a molten state cannot be extruded and overflown and the phase-change metal can run through up and down to ensure that the phase-change metal thermal interface composite material has the low thermal resistance and the high heat-conducting property; the phase-change metal can be effectively prevented from being overflown by adopting the two microporous metal layers, after being molten and expanded, the phase-change metal can be oozed from micropores of the microporous metal layers to effectively fill up gaps in the composite material and no hole occurs in the using process.

The invention belongs to the technical field of papermaking, and particularly relates to composite papermaking nano reinforced aramid paper and a preparation method thereof. By utilizing the characteristics of easy dispersion, large specific surface area and the like of the para-aramid nanofibers in a solution, the para-aramid nanofiber composite wet paper sheet replaces the traditional pulp wetting agent and adhesive, and the para-aramid nanofiber composite wet paper sheet is prepared from the traditional chopped fibers and pulp or fibrids. Then the para-aramid nanofiber dispersion liquid is subjected to spraying sizing treatment on the surface of the aramid wet paper sheet, then compounding and drying forming are carried out, and the sprayed and compounded paper sheet can significantly improve the uniformity, dielectric property and mechanical strength of aramid paper, improve the forming thickness of finished aramid paper, improve the production efficiency and the like; and the negative influence on the performance of the paper sheet due to the introduction of a third adhesive or a wet strength agent is avoided.

The invention discloses a preparation method of a steel fiber composite bar. The steel fiber composite bar is obtained by compounding a thread steel bar inner core, a fiber cloth and a basalt fiber bundle and has a reasonable construction structure; the fiber cloth and the basalt fiber bundle used as reinforcing materials are fully dipped in resin, so the design strength of the reinforced concrete structure can be effectively met; and the method overcomes the defects of strong brittleness, high price and the like of present fiber reinforced composite materials (FRP), and is suitable for wide popularization use. The preparation method is simple, the circumferential winding of the basalt fiber bundle can effectively fills a gap between the projection rib of the thread steel bar inner core and the fiber cloth, and substantially reduces the strength and rigidity weakening due to the local bending of the fiber cloth during the compounding of the vertical fiber (fiber cloth) with the thread steel bar.