214results about How to "Distribute stress" patented technology

The invention discloses a self-healing polymer material and a preparation method thereof. The self-healing polymer material comprises at least one polyurethane polymer prepared by random copolymerization reaction of a low polymer dihydric alcohol, a chain extender and a first diisocyanate, wherein the chain extender comprises at least one multiple hydrogen bond chain extender. The invention further provides a preparation method of the self-healing polymer material. The method comprises the following steps: preparing a ureido pyrimidone type end-capping reagent or chain extender, and preparing the low-temperature rapid self-healing polymer material containing quadruple hydrogen bond groups on side chains and end groups by utilizing the random copolymerization reaction of the low polymer diglycol, the chain extender and the first diisocyanate. Compared with the traditional self-healing material, the self-healing material disclosed by the invention can realize repeated self-healing at the same position at a low temperature without adding a repair agent to the damaged part, and the self-healing polymer material is high in healing ability, excellent in mechanical property, excellent in material film-forming property and transparency, simple in process and low in cost.

An embodiment of the invention provides a flexible array substrate and a preparation method thereof and a display device and relates to the display technical field. The probability of breakage of signal lines in a bending region due to bending can be reduced. The flexible array substrate comprises a display region and a wiring region. The wiring region comprises a bending region adjacent to the display region. The bending region comprises signal lines arranged on a substrate and a protection layer. The protection layer is arranged at one side, away from the substrate, of the signal lines; andthe orthographic projection of the protection layer on the substrate and the orthographic projection of the signal lines on the substrate have an overlapped region, and Young modulus of the protectionlayer is larger than or equal to Young modulus of the signal lines.

The invention provides a leaf-peeling system of a combine harvester of whole stalk type canes. Flexible strip-shaped objects arranged according to a certain rule are arranged on the surface of a conveying roller device, and flexible leaf peeling elements and spacer bushes are evenly arranged on the surface of a leaf peeling roller device at intervals, so as to realize the uniform conveying and leaf peeling operation of canes in batches, thus the leaf peeling dirt percentage and the broken rate of cane stems can be effectively lowered, and the dispersing and conveying effects of the cane stems are enhanced; and in addition, as the flexible strip-shaped objects arranged on the surface of the conveying roller device, and the flexible leaf peeling elements of the leaf peeling roller device are made of elastic materials, and are in flexible contact with the cane in the leaf peeling process, the collision damage rate of the cane can be reduced.

The embodiment of the invention provides a flexible display module and a preparation method thereof. The problem that an existing flexible display module is likely to lose efficacy after being bent issolved. The flexible display module comprises a flexible glass layer and a display panel arranged in the flexible glass layer.

The invention provides a method for strengthening and repairing a tubular pile head. The method comprises the following steps: cleaning broken and loose concrete, exposing main reinforcement for 3 to 4cm, regulating the main reinforcement to ensure that the main reinforcement is vertical to the ground; sawing off the broken pile head, and flat sawing the pile head; washing float ash and dust on the surface of the concrete, drying the concrete, and covering a pile cap with the same specification on the pile head; connecting the exposed main reinforcement with the pile cap, and placing a pallet matched with the pile cap in an inner cavity of the tubular pile; connecting the pallet with the pile cap; and finally, filling epoxy resin concrete in a cavity formed by the pallet, an annular end plate and the inner wall of the tubular pile, and continuously connecting the epoxy resin concrete with a sunk pile after curing in 4 hours. The pile cap comprises the annular end plate, wherein a cylindrical steel hoop is sleeved on the annular end plate; the surface of the annular end plate and the end surface of the cylindrical steel hoop are coplanar, and the annular end plate and the cylindrical steel hoop are connected; the annular end plate is provided with end plate screw holes; and the connection of the exposed main reinforcement and the pile cap is to weld the exposed main reinforcement onto the end plate screw holes one by one.

The invention provides a method for manufacturing an organic electroluminescent device, comprising a plurality of first electrodes on a substrate (20), a light-emitting functional layer arranged correspondingly to the formation positions of the first electrodes, and a layer covering the light-emitting function. A method for manufacturing an organic electroluminescent device for a second electrode of the layer, comprising: a buffer layer forming step of forming a buffer layer (210) while covering the second electrode; and forming a buffer layer (210) covering the second electrode. The process of the gas barrier layer ( ) 30, the buffer layer forming process includes: a coating process of coating a coating material having a monomer/oligomer material and a curing agent without using a solvent under a vacuum atmosphere, and making the coating material The thermal curing process of curing to form a buffer layer. According to the method of manufacturing an organic EL device of the present invention, sufficient luminescence characteristics or luminescence lifetime can be obtained and generation of non-luminescence regions can be suppressed. The present invention also provides an organic electroluminescent device.

The invention relates to a nanofiber flocculus with a sandwich structure. The nanofiber flocculus is provided with a bottom layer, a middle layer and an upper layer with the longitudinal volume density being changed, the bottom layer and the upper layer are compact fiber layers, and the middle layer is a fluffy fiber layer; fibers, making contact with each other, in the nanofiber flocculus are crosslinked; the volume density of the compact fiber layers is 30-40 mg/cm3; the volume density of the fluffy fiber layer is 5-20 mg/cm3; and the compression resilience ratio of the nanofiber flocculus reaches 90% or above, and the CLO value is 2-4 clo. The nanofiber flocculus is prepared through an electrospinning technique, a polymer and a cross-linking agent are dissolved and dispersed in a solvent firstly, and sufficient stirring is conducted to obtain a spinning solution; and then continuous electrospinning is conducted under a specific humidity condition to obtain a composite nanofiber layer with the longitudinal volume density being changed, the composite nanofiber layer is subjected to crosslinking heat treatment, and the nanofiber flocculus is obtained.

The invention relates to a laser scanning method, a readable storage medium and a laser scanning control device. The laser scanning method comprises the steps that a work area to be scanned is acquired, and a plurality of boundary lines are applied to partition the work area into a plurality of partition areas; a control scanner is used to sequentially scans line by line for the multiple partitionareas, wherein, a plurality of scanning lines scanning the same one of the partition areas are parallel to each other; and included angles between the scanning lines of each of the partition areas and the boundary lines of the partition areas are not equal to 90 degree, and the included angles between the scanning lines of each two adjacent partition areas are not equal to 0 degree or 180 degree.According to the laser scanning method, the readable storage medium and the laser scanning control device, the partition scanning can be realized to enable the stress generated by the laser scanningto be more dispersed, so that the problems of the buckling deformation or the cracking of the scanned workpiece are not prone to be caused, and the scanning effect is good.

The invention relates to a correcting method for the roundness of a casting and a correcting tool adopting the same. The correcting method for the roundness of the casting comprises the following steps that firstly, the roundness of the casting is measured, the deformation amount and deformation position of the casting are determined; secondly, the casting is preheated with the temperature being smaller than the aging temperature through a heating device; thirdly, the correcting tool for the roundness of the casting clamps the casting, the deformation part of the casting is adjusted to enablethe roundness of the casting to reach the required range; and fourthly, the casting and the correcting tool for the roundness of the casting are put into the heating device together and cooled to theindoor temperature along with the heating device. After the casting is subjected to low-temperature aging treatment, the deformation part of the casting is adjusted to enable the size of the casting to reach the predetermined required range, and the casting is cooled along with the heating device, so that the stress is dispersed, and the correcting effect of the roundness of the casting is good.

The invention discloses a special-shaped cable and a preparation method thereof. The conductive core of the special-shaped cable is composed of at least two conductive core segments in an end-to-end way, wherein the cross sections of the conductive core segments are different in shape. The conductive core segments are externally wrapped by an insulating layer. The contour of the insulating layer is fit with the conductive core segments. The cable has great bending performance and can also be greatly fit with a vehicle body so that consumables can be saved and the safety performance can be greatly enhanced. The cable is made of the aluminum or aluminum alloy conductive cores so that the vehicle body is enabled to be light-weighted, and the production cost of the motor vehicle can be reduced. The preparation method of the special-shaped cable comprises the steps of manufacturing the conductive core segments, connection of the conductive core segments and manufacturing of the insulating layer so that the production efficiency and the productivity can be effectively enhanced according to different production requirements and the production cost can be reduced.

The embodiment of the invention provides a flexible lining plate and a flexible display panel. The flexible lining plate comprises a bending area and supporting areas on the two sides of the bending area. A plurality of hole structures are arranged on the first surface of the bending area; wherein the orthographic projection areas of the opening of the hole structure and the bottom of the hole structure on the first surface are different. In the embodiment of the invention, the area of the orthographic projection of the opening of the hole structure and the area of the orthographic projection of the bottom of the hole structure on the first surface are different, so that the area of the cross section of the hole structure parallel to the first surface is variable, the stress borne by the bending area can be better dispersed by the hole structure, and the service life of the bending area is prolonged.

The invention discloses a cervical spondylosis traction cervical collar capable of realizing personalized adjustment. The cervical collar is technically characterized by consisting of a shoulder frame, a jaw support, a front support frame, an upper shell sleeve, a lower shell sleeve, and a height adjusting device, a bracket angle adjusting device and a jaw support angle adjusting device which arepositioned behind the neck. The shoulder frame is supported by the shoulder of the human body; the jaw support is used for lifting the head; one end of the height adjusting device is connected into the upper shell sleeve, the other end is connected into the lower shell sleeve, and the length is adjustable; the jaw support angle adjusting device is used for adjusting the pitching angle of the jaw support; the bracket angle adjusting device is used for adjusting the pitching angle of the height adjusting device; the lower shell sleeve is fixedly connected to the shoulder frame; and the front support frame is positioned in front of the neck, one end of the front support frame is connected to the lower part of the jaw support, and the other end abuts against the sternum part of the human body.The cervical collar can quantitatively adjust the strength and the angle of the supporting, adjust the size according to individual conditions, improve the comfort degree, and meet the individualizedtreatment requirement of cervical spondylosis traction physiotherapy.

The invention relates to a manufacturing process of a touch screen bonding part. The bonding part is formed by bonding conductive glass and a conductive film. A touch screen uses a small bonding part, and a large bonding part contains a plurality of uncut small bonding parts. Fittings; in the process of making the fittings, the edging equipment is used to grind the cutting surface of each edge of the conductive glass in the small fittings into a frosted curved surface. The touch screen laminating part produced by the invention avoids the problems of stress concentration points and poor drop resistance in the cut surface of the ITO conductive glass substrate in conventional laminating parts. After the touch screen is made by using the invention, the stress when the touch screen falls can be effectively dispersed, and the qualified rate of products in the production of the touch screen can be improved. At the same time, because no strengthened glass substrate is used, the production cost is greatly reduced.

The invention relates to an optical lens group which comprises a first lens and a second lens, wherein an optical axis of the first lens and an optical axis of the second lens are superposed; the radius of the second lens is more than that of the first lens; the first lens comprises a first optical part and a first mounting part; the second lens comprises a second optical part and a second mounting part; the first mounting part comprises a first buckling surface, a first bearing surface and a third bearing surface; the second mounting part comprises a second buckling surface and a second bearing surface which can cooperate with the first buckling surface and the first bearing surface; the vertical distance between the third bearing surface and the first bearing surface is D, and D is more than or equal to 0.08 mm and less than or equal to 0.5 mm. The optical lens group is stable in structure, realizes automatic centering and is favorable for rotational symmetry of image quality.

A slotting cutter includes a disc-like cutter body rotatable in a predetermined direction on a central axis perpendicular to a plane of the cutter body. The cutter body includes a stop slot, an upper cam slot and a lower slot. A plurality of pockets adapted to receive a cutting inset are formed about a perimeter of the body. A cantilevered clamping member includes a bottom surface with a pair of clamping surfaces that engage a pair of angled clamping surfaces on a top surface of the cutting insert during operation. A wrench is provided to lift the cantilevered clamping member for inserting, indexing or removing the cutting insert from the slotting cutter. The wrench includes two fixed pins and a floating pin that prevents the cantilevered clamping member from bending too far and limiting the useful life of the slotting cutter.

The invention discloses an unbonded prestress and steel-concrete composite reinforcement design method for concrete T-shaped beams. The unbonded prestress and steel-concrete composite reinforcement design method includes steps of firstly, determining unbonded prestress and steel plate-concrete composite reinforcement structures for the reinforcement T-shaped beams; secondly, determining structural parameters of the T-shaped beams prior to reinforcement; thirdly, determining structural parameters of the composite reinforcement structures, to be more specific, initializing the parameters, computing the maximum theoretical thicknesses of reinforcement steel plates, determining the thicknesses of the reinforcement steel plates and the thickness of concrete and determining the heights of longitudinal side steel plates and the widths of bottom steel plates. Each composite reinforcement structure comprises the corresponding bottom steel plate, the two longitudinal side steel plates and a steel bushing case, each steel bushing case comprises two end blocking steel plates, and a plurality of unbonded prestress reinforcing steel bars are arranged in each steel bushing case. The unbonded prestress and steel-concrete composite reinforcement design method has the advantages that the steps are simple, the unbonded prestress and steel-concrete composite reinforcement design method is reasonable in design and convenient to implement, good service effects can be realized, the structural parameters of the bridge composite reinforcement structures can be easily, conveniently and quickly determined, the bridge composite reinforcement structures designed by the aid of the unbonded prestress and steel-concrete composite reinforcement design method are economical and practical, and good reinforcement effects can be realized by the bridge composite reinforcement structures.

The invention discloses a waste HMX and TNT mixed explosive recovery method. The method comprises the following steps: dissolving TNT in a waste HMX and TNT mixed explosive in an excess amount of toluene as a solvent, separating a solid phase HMX and a liquid phase toluene unsaturated solution of TNT; washing the solid phase in toluene, carrying out pumping filtration, washing by using water, carrying out pumping filtration, and drying to obtain an HMX product; and carrying out simple distillation on the liquid phase and the above toluene washing mother liquor to steam out parts of toluene, carrying out a cooling and water addition combined crystallization process to precipitate TNT crystals, filtering, washing the crystals by water, carrying out pumping filtration, and drying to obtain a crystallized granular TNT product. The total yield of the recovery treatment is 98.55%; and the method has the advantages of simple process, few species of used materials, complete recycling of the used solvent toluene, basic reuse of washing water, and realizing of energy saving and clean production.

The invention discloses a CFRP sheet reinforcement installation system. The CFRP sheet reinforcement installation system comprises a beam body, n+1 CFRP sheets, n fixed supports and 2n+2 anchorages, nis a positive integer greater than or equal to 1, the beam body is horizontally arranged, the fixed supports are vertically arranged on the lower surface of the beam body, two anchorages are hinged to the lower ends of the fixed supports, two hinged seats are further arranged at the two ends of the lower surface of the beam body, and the fixed supports are located between the two hinged seats. Anchorages are hinged to the two hinged seats correspondingly. CFRP sheets are arranged between the hinged seats and the adjacent fixed supports. CFRP sheets are further arranged between the two adjacent fixed supports, and the two ends of the CFRP sheets are clamped on the corresponding anchorages. The CFRP sheet reinforcement installation system has the remarkable effects that in the clamping andstretching process of the CFRP sheets, the stress of the CFRP sheets is dispersed, and the uniform stress of the CFRP sheets is ensured. Because the CFRP sheets can form any angle through hinge pieces, the CFRP sheets can be stretched along the straight line, and the shear failure of the CFRP sheets is avoided, and thus the bearing capacity of a reinforced member is improved.

The invention relates to a laminating device and method applied to a large-size battery assembly. The laminating device comprises a laminating cavity, a curing cavity, pre-cooling cavities and a cooling cavity which are connected sequentially, and the temperature in the pre-cooling cavities is higher than the temperature in the cooling cavity; and in the laminating process, the assembly is sequentially subjected to the four steps of laminating, curing, pre-cooling and cooling, wherein in the pre-cooling process, the assembly is cooled from 130-160 DEG C to 50-80 DEG C firstly and then placed into the cooling cavity to be cooled to 20-50 DEG C. The laminating device and method have the beneficial effects that the laminating device including the one or more pre-cooling cavities is adopted, through a stepped cooling method, the influences of quick cooling on large-size battery pieces are reduced, stress, caused by thermal expansion and cold contraction phenomena in the cooling process, ofthe surface of a silicon wafer is dispersed, impact borne by the surfaces of the battery pieces is buffered, the phenomena of laminating fragments and subfissure of the battery pieces are obviously reduced, the efficiency of assembly preparation is improved, and the qualified rate of assembly preparation is increased.

The invention discloses a foldable flexible cover plate and a manufacturing method thereof. The foldable flexible cover plate comprises an ultrathin glass substrate, and an adhesion enhancing platinglayer, a high polymer material layer and a ceramic functional layer which are sequentially stacked on the ultrathin glass substrate, wherein the high polymer material layer is formed by coating and baking a mixture at least consisting of transparent polyamide acid and a coupling agent at one time. The manufacturing method comprises the following steps: providing an ultrathin glass substrate, and forming an adhesion enhancing plating layer on the surface of one side of the ultrathin glass substrate; coating the surface of the adhesion enhancing plating layer with the mixture at least consistingof transparent polyamic acid and a coupling agent, and then carrying out baking-curing reaction to form a high polymer material layer at least consisting of transparent polyimide; and forming a ceramic functional layer on the high polymer material layer to obtain the foldable flexible cover plate. According to the invention, the foldable flexible cover plate with stronger mechanical property andgood bending property can be prepared.

The invention discloses a rear traction device and an automobile. The rear traction device comprises a rear floor cross beam arranged on an automobile vehicle, a longitudinal beam connected with the rear floor cross beam, a traction hook lower mounting plate and a traction hook upper mounting plate. The traction hook lower mounting plate comprises a first connecting part connected with the longitudinal beam, a second connecting part connected with the rear floor cross beam and a third connecting part connected with the traction hook upper mounting plate. The first connecting part and the thirdconnecting part are located on the two sides of the second connecting part correspondingly, and the third connecting part is exposed out of the side, away from the longitudinal beam, of the rear floor cross beam. The traction hook upper mounting plate comprises a fourth connecting part connected with the third connecting part and a fifth connecting part connected with the rear floor cross beam. Aspace for mounting a traction hook nut is formed between the traction hook upper mounting plate and the traction hook lower mounting plate. According to the technical scheme provided by the invention, when the nut bears traction force, the traction force can be transmitted to the rear floor cross beam and the longitudinal beam, stress is dispersed, and welding spots are also not prone to being stripped.