57results about How to "Good bending resistance" patented technology

A heat-insulation fireproof sound-absorbing ecological gypsum board made of composite materials utilizes alpha-hemi-hydrated gypsum or beta-hemi-hydrated gypsum as a raw material, and is characterized by further utilizing gypsum whiskers and light materials (pearlite, glazed hollow beads or foam particles) as raw materials. The gypsum board is prepared by pouring, forming by rolling and drying mixed slurry of the three raw materials and water, and the gypsum board comprises, by weight, 20-80% of the alpha-hemi-hydrated gypsum or beta-hemi-hydrated gypsum, 10-65% of the gypsum whiskers and 5-20% of the light materials. The gypsum board can serve as a heat-insulation energy-saving board for an outer wall and an inner wall, a fireproof sound-absorbing tunnel board, a ceiling board and a decorative board, has the advantages of lightness, high strength, fine bending resistance and capability of reaching standards of a level-A fireproof ecological environment-friendly product, heat-insulation boards in different thickness can be produced according to heat-insulation and energy-saving requirements of different regions so as to meet the requirements on heat insulation and energy saving, and the fireproof heat-insulation boards in industrialized production are guaranteed to meet the requirements on energy saving and quality in installation and construction.

The invention discloses a preparation device for a low-stress SiC single crystal. The device comprises a crucible made from a material with high temperature resistance and high thermal conductivity, the bottom of the inner portion of the crucible is provided with a SiC polycrystalline raw material, the inner side of an upper cover of the crucible is fixedly provided with a stress buffer layer madefrom a high-temperature-resistant flexible material, a seed crystal is bonded to the stress buffer layer, the stress buffer layer of an annular structure made from the high-temperature-resistant flexible material and used for limiting the diameter of the crystal is arranged at the outer side of the seed crystal and next to the seed crystal, a heat insulating and preserving layer with high temperature resistance and low thermal conductivity is arranged at the peripheral side of the crucible, and induction coils made from a metal material are wound around the peripheral side of the heat insulating and preserving layer. The preparation device effectively reduces various defects and the cracking probability of the SiC crystal.

The embodiment of the invention discloses a touch screen and a corresponding OLED panel. A metal mesh touch circuit is fabricated on an encapsulation layer of a flexible OLED display screen, metal mesh touch circuit avoids the luminous zone of pixels, wire is arranged between adjacent pixels, at least one electrode of that drive electrode or the sensing electrode is connected and conducted througha metal bridge below, so that the flexible touch screen can be realized, and the thickness of the flexible touch screen becomes smaller by reducing the use of the transparent optical adhesive, and the production cost can be reduced.

The invention relates to a photosensitive covering material used on a flexible circuit board. In order to overcome difficulties in the prior art, the invention provides a preparation method of the photosensitive resin with flame retardancy, and the preparation method comprises the following steps: dissolving imide modified epoxy resin in a solvent, carrying out a reaction with unsaturated monocarboxylic acid under the action of a catalyst at 70-140 DEG C for 1-10 hours, and then carrying out a reaction with a anhydride-containing material at 70-140 DEG C for 1-10 hours to prepare the photosensitive resin with flame retardancy, good bending resistance and good chemical resistance. Meanwhile, the invention also provides an application of photosensitive ink prepared by the photosensitive resin with flame retardancy on a circuit board, the heat resistance and chemical resistance of the ink are ensured, and the bending resistance after the ink is cured is also ensured.

The invention discloses a polyimide polymer and preparing method of clad copper layer board, which comprises the following steps: dissolving aromatic tetracarboxylic dianhydride and aromatic diamine in the polar aprotic solvent without adding inorganic filler; producing polyamide acid solution; proceeding amination reaction for polyamide acid solution to obtain the product with heat bulking coefficient between 10 and 30pm/deg.c.

The invention relates to a machining method of a metal middle frame, a metal middle frame and a mobile terminal. The machining method of the metal middle frame comprises the following steps that a plurality of connecting sections is provided; the connecting sections is arranged in a die-casting die at intervals, and the plurality of connecting sections define an annular frame with a gap; molten aluminum liquid is injected into the cavity of the die-casting die and fills the cavity of the die-casting die through a die-casting treatment technology, wherein part of the molten aluminum liquid is solidified to form a middle plate which is integrally formed with the connecting sections, and the rest of the molten aluminum liquid fills the gap and is solidified to form a filled aluminum material;and surface treatment is carried out on the frame and the filled aluminum material. Due to the fact that the connecting sections are placed in the cavity of the die-casting die at intervals, the tensile stress generated by the filled aluminum material located in different gaps in the cooling and forming process is counteracted mutually; and defects of bending deformation and the like caused by unbalanced stress of the frame formed after the connecting sections are connected through the filled aluminum material are avoided, so that the forming quality of the whole metal middle frame is ensured.

The invention provides a stereo image display device comprising a display panel, a stiffened plate and a spectral structure layer. The stiffened plate is selectively attached to at least one surface of the display panel to enhance the anti-bending and anti-deforming capabilities of the display panel. When the stiffened plate is attached to the display surface of the display panel, the stiffened plate is necessary to have light transmittance, and the rigidity of the stiffened plate is greater than that of the display panel so that the stiffened plate can support the display panel to keep the shape of the display panel and avoid the display panel from being bent after the stiffened plate is attached to the surface of the display panel. The spectral structure layer is arranged corresponding to the display surface, and a gap is clamped between the spectral structure layer and the display panel to form an air layer. The image display device has stabler stereo image output effect.

The invention relates to a PET composite material for beer packaging and its preparation technology. The composite material is composed of the following components by weight: 62-73 parts of polyethylene terephthalate, 25-35 parts of glass fiber, 5-15 parts of an interfacial compatibilizer, 0.05-0.2 part of an anti-oxidant, 0.05-0.15 part of a cross-linking agent, and 1-3 parts of a lubricant. Theinvention also includes a preparation technology of the PET composite material for beer packaging. The PET composite material for beer packaging of the invention has the advantages of good impact resistance, tensile strength and bending resistance, easy processing and moulding, and low manufacturing cost, thus being especially suitable for the packaging of beer bottles, etc. Characterized by simple preparation technology, the composite material provided in the invention is suitable for industrial production.

The invention discloses a graphene regenerated EVA (ethylene-vinyl acetate) forming sole colloidal particle and a preparation method thereof. The colloidal particle is prepared from, by weight, 22-28parts of ethylene-vinyl acetate copolymers, 45-50 parts of ethylene-vinyl acetate copolymer scrap grinding powder, 13-17 parts of oxidic polyethylene, 4-7 parts of graphene, 1-2 parts of carboxylatedgraphene, 2-4 parts of antioxidants, 1.5-3 parts of light stabilizers and 3-5 parts of zinc stearate. According to the graphene regenerated EVA forming sole colloidal particle, raw materials are carefully selected, a formula is reasonable, the graphene regenerated EVA forming sole colloidal particle serves as an EVA forming sole material, the colloidal particle has the advantages of high tensile strength, tearing strength and rebound rate, good bending resistance and rebound resilience, low size shrinkage rate and the like, the performances of the forming sole colloidal particle is close to even superior to those of marketing EVA sole materials, the EVA is recycled, the utilization rate of the EVA is increased, costs of raw materials are reduced, and the colloidal particle is more environmentally friendly.

The invention discloses an integral valve casting machining technology. A high-temperature coating is adopted for finishing, an E-shaped core support is used for conducting supporting, and a chillingblock is combined with an exothermic riser. The invention further discloses an integral valve casting prepared through the above technology. A valve comprises a plurality of main runners, a transverserunner, a plurality of vertical runners, a plurality of auxiliary runners and a plurality of runner ports. The transverse runner is located in the vertical direction of the main runners. The auxiliary runners are used for connection between the main runners. The runner ports are formed in the surface of the valve. The runner ports communicate with the main runners through vertical runners. By adoption of the integral valve casting machining technology and the integral valve casting, the beneficial effects that the sand core anti-bending performance is good, the casting is free of air holes, shrinkage cavities and shrinkage porosity, and inner runners are free of sand core sintering trimmings are achieved. Meanwhile, the prepared valve is compact in structure, convenient to use and not prone to leakage.

The invention discloses an audio and video searching and collecting system. The system comprises a supporting rod, a camera assembly fixedly arranged at the end of the supporting rod, a sound pickup, a control assembly and a receiver; the supporting rod comprises a main rod body, a rotating handle, a telescopic rod and a camera assembly, and the rotating handle is provided with an elastic telescopic hoop; the control assembly comprises a power source, a processor, an image displayer, a control panel and a wireless transmitter. The collecting system can collect and infinitely transmit audios and videos, advisers outside a fire ground can master conditions in the fire ground conveniently, the supporting rod is telescopic in a pinching mode and can be fast stretched to be unfolded or retracted to control detection depth, the detection angle can be adjusted through the rotating handle, a searcher can conveniently adjust detection depth and angle according to search requirements under the condition of ensuring position concealment, and damage risk is reduced while site images are obtained in an all-dimensional mode; the collecting system is suitable for being used and popularized in a military police system, a fire-extinguishing system and a disaster relief system.

The invention discloses a fiber-to-the-home wall-penetrating rubber casing which is prepared from the following raw materials in parts by weight: 30-35 parts of polybutadiene rubber, 25-30 parts of ethylene propylene diene monomer rubber 3092PM, 20-25 parts of natural rubber, 15-20 parts of silicon rubber, 4-6 parts of stearic acid, 0.3-0.5 part of polyethyleneglycol (PEG) 4000, 14-16 parts of white carbon black, 18-20 parts of carbon black N568, 16-18 parts of carbon black N765, 25-30 parts of light calcium carbonate, 25-35 parts of paraffin oil 2280, 2-3 parts of crosslinking agent TAIC, 3-5 parts of crosslinking agent BIPB, 20-25 parts of modified sericite and 3-4 parts of modified quartz powder. By combining the polybutadiene rubber, ethylene propylene diene monomer rubber, natural rubber and silicon rubber, the compounded rubber has the advantages of favorable water resistance, aging resistance, acid/alkali resistance, excellent fatigue resistance and excellent bending resistance.

The invention provides a flexible red photoelectric injection light-emitting device based on a metal halide perovskite light-emitting layer and a preparation method thereof. The flexible red photoelectric injection light-emitting device comprises an anode layer, a hole transport layer, a perovskite light-emitting layer, an electron transport layer and a flexible substrate which are arranged in order; the anode layer employs Au, the hole transport layer employs Spiro-OMeTAD, the perovskite light-emitting layer employs Cs0.05FA0.8075MA0.1425Pb(I0.85Br0.15)3 mixed perovskite film material, the electron transport layer employs an amorphous non-continuous electron transport material SnO2, and the flexible substrate employs ITO/PEN. The preparation method of the flexible red photoelectric injection light-emitting device based on the metal halide perovskite light-emitting layer is simple and practicable and low in cost, and the prepared flexible red photoelectric injection light-emitting device effectively solves the bending stability problem of a flexible perovskite device.

The invention discloses a white-light handwriting and reflectively-enhanced liquid crystal writing board and a preparation method thereof. The white-light handwriting and reflectively-enhanced liquidcrystal writing board comprises a polyethylene terephthalate (PET) transparent film with a silver or copper metal grid plated on one side, a liquid crystal thin layer containing a chiral compound-supported mesoporous material, and a PET non-transparent black film with a silver or copper metal grid plated on one side. According to the white-light enhanced liquid crystal writing board and the preparation method thereof, the chiral compound-supported mesoporous material is introduced into a liquid crystal system, and the diffusion of a chiral compound in mesopores is controlled, thereby making the chiral compound present gradient or uneven distribution in the liquid crystal system, resulting in the gradient or uneven distribution of the pitches of the liquid crystal system. Then, the reflective wave width of the liquid crystal system is greatly improved through ultraviolet polymerization anchoring pitches to cover the whole visible light area, thereby making the handwriting of the writingboard white, and greatly improving the brightness, contrast and other key technical indexes.

The invention relates to the technical field of electromagnetic shielding films for flexible circuit boards, in particular to an electromagnetic shielding film with high shielding performance and a production process thereof. According to the invention, the main points of the technical scheme are that the electromagnetic shielding film comprises an insulating layer, a metal shielding layer and a conductive adhesive layer which are arranged in sequence; one side of the insulating layer is in a network shape, and the side, connected with the insulating layer, of the metal shielding layer is in anetwork shape matched with the insulating layer. According to the electromagnetic shielding film with high shielding performance and the production process of the electromagnetic shielding film, theshielding effectiveness of the electromagnetic shielding film reaches up to 75db due to the unique shielding body structure. Meanwhile, the metal shielding layer filled on one side of the grid-shapedinsulating layer has special grid-shaped process characteristics which are different from the structural characteristics of the conventional rigid flat metal shielding layer, so the bending resistanceof the metal shielding layer is more outstanding, and the metal shielding layer has excellent flexibility. In addition, compared with similar products, the method is simple in process, easy to implement, lower in cost and higher in mass production.

The invention provides an L-shaped composite material laminboard connecting structure with a flexible metal connector. The structure comprises foamed laminated composite material plates and metal connecting parts, wherein pre-buried metal plate parts of the metal connecting parts are embedded between laminated foams and composite material plates; composite material laminboards and the metal connecting parts are cured together by using an integral molding technique. Due to adoption of adjustable flexible connectors, the assembling stress is effectively reduced, and flexible assembling is achieved; the pre-buried metal plate parts are designed as a forked tail structure, so that the concentrated stress at the connecting parts of the metal plates and the composite material plates is effectively reduced; the connecting parts are of circular arc-shaped design, so that the bending strength is improved; due to a co-curing technique, composite material openings and the like are avoided, and the integrity of the composite material plates is ensured; a relatively large space is reserved in the metal connecting parts, so that convenience can be brought to pipeline laying and later maintenance. The structure is applicable to mechanical connection of composites material laminboards and other structures of large-size structures.

The invention relates to a stereoscopic parking equipment rack structure. The stereoscopic parking equipment rack structure comprises a rack formed by connecting a plurality of stand columns and a plurality of beams, the stand columns are perpendicularly arranged, the beams are transversely arranged and connected between the stand columns, a layer and above upper-layer parking spots are arranged on the rack, car-shifting channels are arranged at the positions, corresponding to the sides of the upper-layer parking spots, of the rack, the stand columns are formed by connecting a plurality of segments of H-shaped steel through connection plates, the connection plates are connected with the surface of the H-shaped steel through bolted connection or rivet connection, or the connection plate iswelded to the surface of the H-shaped steel. According to the stereoscopic parking equipment rack structure, the stand columns are connected through the connection plates by adopting the multiple segments of H-shaped steel, a flange plate is not required to be welded to the end part of each segment of H-shaped steel, the processing is convenient, the H-shaped steel has good anti-bending supportingcapacity, and the rack rigidity is improved.

The invention relates to the field of bullet trains, in particular to an anti-bending composite insulator of a bullet train roof. The anti-bending composite insulator of the bullet train roof comprises a supporting body, wherein a plurality of umbrella skirts are arranged around the side wall of the supporting body and arrayed side by side in the axial direction, the umbrella skirts protrude out of the side wall of the supporting body in the radial direction, and the supporting body is a high-strength glass fiber epoxy resin bar. The composite insulator is good in acid, alkali and salt resistance and bending resistance, and the bending resistance is larger than 16KN. Preferably, the upper end of the supporting body is provided with an upper fitting used for being connected with a conducting rod, and the upper fitting is assembled at the upper end of the supporting body through a special device in an annular compression joint mode. The lower end of the supporting body is provided with a lower fitting used for installing the composite insulator on the bullet train roof, and the lower fitting is assembled at the lower end of the supporting body in a high-pressure compression joint mode. The composite insulator is good in shock resistance, impact resistance and brittle fracture resistance and can operate in various climates, working conditions and environments.

The invention discloses a weather-resistant, bending-resistant, high-gloss and low-light-transmittance ABS (Acrylonitrile Butadiene Styrene) material. The key point of the technical scheme is that the weather-resistant, bending-resistant, high-gloss and low-light-transmittance ABS material contains the following components in percentage by mass: 79-91wt% of weather-resistant ABS resin, 0.2-0.4wt% of a dispersant, 0.2-0.4wt% of an antioxidant, 0.3-0.6wt% of a lubricant, and 8-20wt% of a light-screening agent. The weather-resistant, bending-resistant, high-gloss and low-light-transmittance ABS material provided by the invention is relatively good in shading effect, better in weather resistance and fluidity and lower in cost.

The invention discloses a modular foundation pit steel truss supporting structure which is compose of a single row or a plurality of rows of plane truss structures. Each plane truss structure comprises basic structure units and edge components and is mainly formed by splicing the basic structure units. The basic structure units located at the edges of the two ends of the plane truss structure are connected with the edge components. Each plane truss structure is formed by splicing the basic structure units along a row. Every two adjacent basic structure units are connected through a middle connecting node, and the spliced basic structure units at the two ends are connected with the edge components through end connecting nodes. Each basic structure unit is composed of two chord members and a diagonal web member, wherein the two chord members are arranged in parallel and are connected into a whole through the diagonal web member. The modular foundation pit steel truss supporting structure has the stressing characteristics of being large in bending bearing capacity and large in anti-bending stiffness and meanwhile has the characteristics of being unified in specification of the basic structure, high in universality, high in reutilization rate, easy to transport and install on site and the like.

The invention relates to a high-strength anticorrosive artificial artistic stone plate and a production method thereof. The artificial artistic stone plate comprises, by mass, 42-55 parts of recycledcoarse aggregates, 18-30 parts of recycled fine aggregates, 18-25 parts of fast-hardening cement, 0.2-0.6 part of basalt fibers, 0.5-0.7 part of a water reducing agent, 1-2 parts of water-based epoxyresin and 2-4 parts of a curing agent. The high-strength anticorrosive artificial artistic stone plate has the advantages of good compression resistance, good impact resistance, good bending resistance, good pollution resistance, good corrosion resistance and environmental protection, and the production method has the advantages of simplicity, easiness in control of the production process conditions, and low production cost due to the main material being recycled building wastes.

The invention provides a microcatheter with double cavities, which comprises a first catheter body with a near-end section, a transition section and a far-end section which are connected in sequence and a second catheter body jointed on the periphery of the first catheter body, the second catheter body is provided with a connecting section jointed on the periphery of the first catheter body and atip section which is connected with the connecting section and is gradually shrunk, and the near-end section is provided with a first inner layer forming a first guide wire inner cavity, a spring layer wound on the first inner layer in a winding mode and arranged in the length direction of the first inner layer, a woven layer arranged on the outer side of the spring layer, and a first polymer layer covering the outer side of the woven layer. The transition section is provided with a first inner layer extending from the near-end section, a woven layer extending from the near-end section and partially covering the outer side of the first inner layer, and a first polymer layer extending from the near-end section and covering the outer side of the braided layer. The far-end section has a firstinner layer extending from the transition section, and a first polymer layer extending from the transition section and covering an outer side of the first inner layer.

The invention discloses a special optical fiber ribbon cable for communication and belongs to the technical field of optical cables. The optical fiber ribbon cable is composed of a plurality of optical cable units, wherein the appearances of the optical cable units are flat, grooves are formed in connecting positions, tearing ropes are arranged in the grooves, an optical fiber ribbon coated with a loose sleeve is arranged at the center of each optical cable unit, reinforcing pieces are arranged on the two sides of each loose sleeve, and the outermost layer of each optical cable unit is an outer protective layer. An optical fiber is bent and insensitive and has excellent transmission performance and good bending resistance; the reinforcing pieces are non-metallic waterproof reinforcing pieces and meet the requirements for thunder prevention, high strength and high water resistance; the optical fiber ribbons, the loose sleeves and the outer protective layers are all made of transparent materials, and therefore after construction is carried out at a decorated place, the effects of transparency, invisibility and uniformity with the environment can be achieved. Filling of oil is not needed, so that the problem of environmental pollution in the construction process is solved. The optical cable units are connected through the grooves easy to separate, and the tearing ropes are arranged in the grooves, so that convenience is brought to users in wiring and construction.

The invention discloses an aluminum metal sheathed fireproof cable. The cable is composed of a sheath and a cable core, wherein the cable core is provided with at most five wire cores; , phlogopite layer, aluminum metal sleeve and isolation sleeve, and a fireproof layer is also arranged in the cable core. In the present invention, the cable has good flexibility and bending resistance by using a plurality of single-filament conductors; by using fluorine tape as a high flame-retardant insulating tape, the cable has high insulation resistance; by using continuous seamless extrusion The aluminum metal sleeve makes the cable waterproof, anti-rat ants and stray current, as well as anti-pressure and anti-interference; at the same time, the aluminum metal sleeve can also be used as the PE wire or PEN wire of the cable, so as to prevent electric shock during electricity use. The occurrence of accidents; by using metal hydrate composed of aluminum hydroxide, magnesium hydroxide and binder as a fireproof layer, the cable has good fire resistance.

The invention provides a high-weather-resistant, torsion-resistant and bending-resistant control cable, and relates to the technical field of design of towline cables. The high-weather-resistant, torsion-resistant and bending-resistant control cable includes a cable core formed by mutual twisting of a plurality of reinforced insulating wire cores, an inner liner layer, a reinforced braided shielding layer and an outer sheath layer are arranged in sequence outside the cable core, each reinforced insulating wire core includes a conductor externally wrapped by an insulating layer, and the conductor is formed by intertwisting copper wires and Dupont fibers in the same direction; and the reinforced braided shielding layer is formed by braiding copper wires and Dupont fibers in a combined manner, each spindle of copper wires is provided with a piece of Dupont fiber, and the braiding density of the reinforced braided shielding layer is larger than 90%. The high-weather-resistant, torsion-resistant and bending-resistant control cable provided by the invention has the characteristics of excellent interference resistance, torsion resistance, bending resistance and the like, and can meet market requirements.