18results about How to "Small creep" patented technology

The invention belongs to the technical field of compressed air energy storage, and discloses a salt cavern compressed air energy storage reservoir stability grade evaluation method and system, and the method comprises the steps: obtaining salt rock physical and mechanical parameters, stratum structure parameters and salt cavern internal structure parameters; selecting a stability evaluation index of the salt-cavern compressed air energy storage library; establishing a three-dimensional geomechanical model of the salt cavern energy storage library and performing simulation calculation; constructing an evaluation model; determining an index weight value of the stability of the salt-cavern compressed air energy storage library; calculating an evaluation grade; and adjusting and optimizing operation parameters of the salt cavern energy storage bank. According to the method, by providing a systematic quantitative analysis process and a unified evaluation index system, the accuracy and reliability of stability evaluation of the salt-cavern compressed air energy storage library are remarkably improved, and an important technical support is provided for development and application of a salt-cavern compressed air energy storage technology. Important technical support is provided for development and application of a salt cavern compressed air energy storage technology, and commercialization and large-scale development of the technology can be promoted.

The invention discloses a pressure-sensitive adhesive, a preparation method thereof and application of the pressure-sensitive adhesive in a high-temperature-resistant zero-climbing large-size polaroid protective film, and belongs to the technical field of optical protective films. The pressure-sensitive adhesive comprises a cellulose derivative modified acrylate polymer, a curing agent, an antistatic agent, a wetting agent and a first solvent; the cellulose derivative modified acrylate polymer is prepared from an acrylate hard monomer, an acrylate soft monomer, an acrylate functional monomer, a cellulose derivative containing double bonds, an initiator and a second solvent through free radical polymerization; the prepared pressure-sensitive adhesive is applied to the high-temperature-resistant zero-climbing large-size polaroid protective film, the problem that the high-speed stripping force and the low-speed stripping force are too large in climbing when the protective film is stripped after the large-size polaroid protective film is attached for a long time at present can be solved, and the surface resistivity and the film tearing voltage are not influenced while the stripping force climbing is solved.

The invention relates to the field of automobile parts, and discloses an instrument panel cross beam machining method and an instrument panel cross beam. The instrument panel cross beam machining method adopts an injection molding mode to machine an instrument panel cross beam, and in the injection molding process of the instrument panel cross beam, injection molding is carried out by adopting injection molding parameters of a first injection speed and a first screw rotating speed in a first time period; in the second time period, injection molding parameters of the second injection speed and the second screw rotating speed are adopted for injection molding; wherein the first injection speed is greater than the second injection speed, and the first screw rotation speed is greater than or equal to the second screw rotation speed. Therefore, the distribution of the glass fibers can be optimized only by adjusting the injection molding parameters of the first time period and the second time period, so that the mechanical property of the instrument panel cross beam is improved, and compared with the mode that the content of defects and impurities needs to be accurately controlled in the related technology, the production cost and the production difficulty can be reduced.

The utility model provides a side bearing device and a bogie with the side bearing device, and the side bearing device comprises a side bearing seat which comprises a bottom plate, a first vertical plate, a second vertical plate and a convex column, the first vertical plate and the second vertical plate are connected to two sides of the bottom plate, and the convex column is arranged on the bottom plate; the taper sleeve structure comprises a first taper sleeve and a second taper sleeve arranged on the outer side of the first taper sleeve in a sleeving mode, and the first buffering piece is connected between the first taper sleeve and the second taper sleeve. The first side plate and the second side plate are arranged on the two opposite sides of the taper sleeve structure, a second buffer part is connected between the first side plate and the taper sleeve structure, a third buffer part is connected between the second side plate and the taper sleeve structure, and the top plate is connected to the taper sleeve structure; the positioning structure is arranged between the top plate and the taper sleeve structure; the connecting structure is arranged between the top plate and the taper sleeve structure, and the connecting structure and the positioning structure are arranged at intervals. According to the technical scheme, the problem that the use effect of the elastic side bearing is affected due to the fact that the top plate of the elastic side bearing is easily separated from the rubber body in the prior art is effectively solved.

The invention discloses a high-strength and high-wear-resistance cast aluminum alloy material and a preparation method thereof, and belongs to the technical field of motors for new energy automobiles. The cast aluminum alloy material is prepared from the following components in parts by weight: 0.2 to 0.5 weight percent of Si, 0.7 to 1.0 weight percent of Cu, 0.2 to 0.5 weight percent of IIA group elements and the balance of Al and inevitable impurities. The cast aluminum alloy material can reduce the alloy cracking tendency in the casting process, so that the yield strength and the tensile strength of a cast aluminum rotor made of the alloy material are improved, the cast aluminum rotor can stably run when running at the high rotating speed of 23000 rpm or above, and the running safety of the cast aluminum rotor is improved.

The application provides a low-temperature laminated co-extrusion adhesive film and a preparation method and a photovoltaic module, and relates to the technical field of photovoltaic devices.The low-temperature laminated co-extrusion adhesive film comprises a laminated EVA film layer and a TPO film layer, and the EVA film layer and the TPO film layer are fused at the interface part; the content of vinyl acetate in the EVA film layer is 15-40%, and the crosslinking degree of EVA is not less than 65%; the raw material for forming the TPO film layer comprises an ethylene-alpha olefin copolymer; the melt index of the ethylene-alpha olefin copolymer is 0.5-10 g / 10 min, and the melting point is 50-115 DEG C; the light transmittance of the low-temperature laminated co-extrusion adhesive film for light with a wavelength of 380-1100 nm is greater than 88%. The low-temperature laminated co-extrusion adhesive film provided by the application not only can realize low-temperature crosslinking, but also has high bonding performance with a base material and long-term anti-creep performance.

The embodiment of the invention provides a piezoelectric element, a manufacturing method, an actuator and electronic equipment, and relates to the technical field of semiconductors. The piezoelectric element comprises a substrate, wherein the substrate comprises a cavity penetrating through the substrate; a vibration layer is arranged on the substrate and covers the cavity; the first electrode, the piezoelectric film layer and the second electrode are arranged on the vibration layer in a stacked mode, and the first electrode is in lattice matching with the vibration layer. According to the piezoelectric element provided by the embodiment of the invention, the buffer layer is used as the vibration layer, and a grinding process does not need to be used for the vibration layer, so that the film thickness error of the vibration layer is relatively small, and the performance of the piezoelectric element is improved.

The utility model belongs to the technical field of indicator lamp protection, and particularly relates to a floor indicator lamp with a protection structure, which comprises a protection component, a height adjusting component is mounted on one side of the protection component, and a fixing component is mounted on the other side of the height adjusting component. The protection assembly comprises a supporting shell, a nut is fixedly connected into the supporting shell, a clamping groove is formed in the side edge of the supporting shell, an indicator lamp body is connected into the clamping groove in a clamped mode, a sealing ring is fixedly connected to the outer wall of the supporting shell, a hinge is arranged at the bottom of the sealing ring, and a cover plate is fixedly connected to the side edge of the hinge. The top of the cover plate is fixedly connected with a buckle, and the outer wall of the buckle is connected with a clamping box in a clamped mode. And the sealing ring is arranged outside the shell and is closed, so that sealing can be carried out, and moisture is prevented from entering the supporting shell to damage the electronic element.

The utility model discloses a mounting side plate. According to the scheme, the side plate comprises a first limiting hole and a second limiting hole which are formed in the plate surface of a side plate body, and the side plate body is made of nylon materials. The side plate body provided by the utility model is made of the fiber-reinforced semi-aromatic nylon, has high chemical resistance, high temperature resistance, high strength, high rigidity, high dimensional stability, scratch resistance and low creep property.

The utility model provides a string separator for a bow handle of a composite bow. The string separator comprises an auxiliary string separating device, a string separator sliding rod and a plurality of positioning sliding pieces in a cavity in the middle of a bow handle body. The plurality of positioning sliding pieces are arranged in the cavity in the middle of the bow handle main body and are arranged in the long groove of the string splitter sliding rod; the string splitter sliding rod is arranged in the cavity of the bow handle body in a sliding fit mode. The translation function of the string separator is realized through the sliding of the string separator sliding rod and the plurality of positioning shafts in the bow handle main body, and the problems that the bowstring is easy to wear, the string separator cannot move along with the auxiliary string and the like are solved.

The utility model provides a movement sliding plate capable of preventing plate breakage. The movement sliding plate comprises a plate body, a pulley assembly, a bottom plate, a core plate, a top plate, an arc-shaped reinforcing rib, a transition arc and a wear-resisting plate, according to the utility model, the plate body formed by pressing the three layers of plates and the arc-shaped reinforcing ribs are arranged, and the core plate of the plate body adopts the graphene / ester ether copolymerization type thermosetting polyurethane composite layer with high strength, low creep, high wear resistance, aging resistance and low temperature resistance, so that the processing of the plate body is simplified; through the design of the arc-shaped reinforcing ribs, the transition arcs and the wear-resisting plates, the strength and the wear-resisting degree of the upwarp part and the middle part of the plate body are improved; and the situation that the raised parts at the two ends of the plate body and the middle part of the plate body are fractured to cause missing step and falling of people and cause injury is prevented.

The application discloses a high-temperature-resistant and high-rigidity oil tank valve body sealing gasket skeleton material and a preparation method thereof, and belongs to the technical field of automobile fuel system component manufacturing. The skeleton material comprises the following raw materials in parts by weight: 70-80 parts of polyphthalamide resin, 13-15 parts of glass fiber, 12-14 parts of carbon fiber, 2-3 parts of ethanol aqueous solution containing KH-550, 3-6 parts of modifier, 0.5-1 part of antioxidant and 0.4-0.8 part of lubricant. The modifier has a molecular structure comprising a fluoralkyl chain, a long alkyl chain, a sulfonyl group and a benzene ring. The application cooperatively enhances the glass fiber and the carbon fiber, and combines the special modifier, so that the high-temperature resistance, the impact resistance, the dimensional stability and the fuel swelling resistance of the material are significantly improved, the problems of insufficient mechanical property and poor medium resistance of the existing polyphthalamide material are solved, and the application is suitable for the high-demand automobile oil tank valve body sealing gasket.

The invention discloses a Ti2O3-containing andalusite refractory material and a preparation method thereof, and belongs to the technical field of refractory materials. The raw materials of the Ti2O3-containing andalusite refractory material of the invention include, by weight, 69-90 parts of andalusite, 10-31 parts of mixed fine powder and 3.5 parts of phenolic resin binder; the mixed fine powder contains titanium dioxide and metal aluminum powder in a mass ratio of 28:3. The Ti2O3-containing andalusite refractory material prepared by the invention has the advantages of low creep, good thermal shock resistance, high density, high strength and high resistance to penetration and erosion. The invention utilizes the generated Al2O3 to further react with the silicon-rich glass phase of andalusite to generate secondary mullite, thereby improving the bonding strength of the system. At the same time, the finely dispersed Ti2O3 generated in situ is uniformly dispersed in the mullite grain boundary in the form of an independent phase, and is almost not solid-dissolved in the mullite, which can inhibit the anisotropic growth of the mullite crystal, promote the densification of the material, reduce the porosity, and improve its resistance to penetration and erosion.

The utility model discloses a pipeline connector with a reinforced metal sleeve and a safe and detachable pipeline, and relates to the technical field of pipeline connectors. Comprising a connector shell, a metal sleeve and a limiting piece, the metal sleeve is arranged on the outer wall of an outer ring cover, the outer wall of an inner ring cover and the outer wall of the connector shell in a sleeving mode, the end, close to the outer ring cover, of the metal sleeve is provided with a closing opening with the step-shaped section, one end of the outer ring cover is provided with an engagement part, and second limiting grooves are formed between every two adjacent clamping jaws of a clamping jaw ring. At least two first limiting grooves are evenly formed in the inner wall of the outer ring cover, at least two grooves aligned with the first limiting grooves are evenly formed in the frustum-shaped inner wall of the inner ring cover, and after the clamping jaw ring rotates, at least one second limiting groove is aligned with the first limiting grooves and the grooves respectively. The reinforced metal sleeve can improve the connection firmness degree between the assemblies; the external pipeline synchronously rotates along with the clamping jaw ring, so that the external pipeline cannot be dismounted by mistake due to accidental rotation; the limiting piece can limit rotation of the clamping jaw ring, so that the clamping jaw ring can be quickly disassembled by rotating the external pipeline.

The present disclosure relates to a vibration absorber and a vehicle, the vibration absorber comprising: a mounting disc configured to be mounted on a drive shaft; a rubber main spring connected around an outer periphery of the mounting disc; a first mass ring embedded in the rubber main spring; a second mass ring connected to an outer periphery of the rubber main spring, and the first mass ring and the second mass ring are coaxially arranged with the mounting disc respectively; and a reinforcing member embedded in the rubber main spring, the reinforcing member comprising a first reinforcing member arranged between the mounting disc and the first mass ring, and a second reinforcing member arranged between the first mass ring and the second mass ring, and the reinforcing member is in contact with the rubber main spring. The first mass ring and the second mass ring can enable the vibration absorber to attenuate vibrations at two torsional vibration frequencies. The reinforcing member arranged in the rubber main spring can reduce the creep of the rubber main spring during operation of the vibration absorber, not only ensuring the dynamic balance of the vibration absorber, but also ensuring the strength of the rubber main spring, so that it is not easy to be damaged when bearing larger vibrations, thereby improving the service life of the rubber main spring.

The invention discloses a geocell strip and a preparation method and application thereof.The geocell strip is formed by compounding a geogrid and geotextile, and the geogrid is prepared through the following steps that a warp knitting machine is used for weaving composite fiber bundles into a geogrid body, the geogrid body is coated with a modified asphalt coating, drying is conducted, and the geocell strip is obtained. The geogrid is obtained; the composite fiber bundles are formed by secondarily twisting polyester filament yarns, carbon fibers and polyphenylene sulfide fibers; the modified asphalt coating is prepared from asphalt, SBS, natural rubber, polyphenylene sulfide, basalt fibers, antimony trioxide, polyvinylpyrrolidone and sodium dodecyl benzene sulfonate. The polyester filaments, the carbon fibers and the polyphenylene sulfide fibers are compounded and woven into the geogrid body, the tensile strength, the wear resistance and the durability of the geogrid are enhanced, the asphalt coating is further improved, the temperature sensitivity of asphalt is improved, and the crack resistance, the chemical stability, the oil resistance, the mechanical strength and the wear resistance are improved.

This disclosure relates to a display device, including a display panel, a protective layer on the display panel, and a first adhesive layer between the display panel and the protective layer. The first adhesive layer may contain 0.05 wt% to 1 wt% of a silane coupling agent, and the first adhesive layer may have 20% or less creep at 60°C.

The utility model discloses a trailer tire pattern and a tire, and belongs to the technical field of tires. According to the technical scheme, left-side pattern blocks and right-side pattern blocks are arranged on a tread, the left-side pattern blocks and the right-side pattern blocks are arranged on the tread in a herringbone staggered mode, and transverse pattern grooves are formed between the left-side pattern blocks and the right-side pattern blocks of the previous pitch and the left-side pattern blocks and the right-side pattern blocks of the next pitch. Longitudinal pattern grooves are formed between the left pattern blocks and the right pattern blocks and are positioned in the center of the tread. The pattern blocks are designed in a herringbone manner, so that traction force can be improved, rolling resistance is reduced, and drainage performance is improved; the left pattern blocks and the right pattern blocks are large-area pattern blocks, so that the wear resistance is improved.