172results about How to "Flat surface" patented technology

A heel backer shaper comprises a case, a last-compressing ironing base, a last rotation mechanism, a shaping wheel, an automatic selector switch, and a footboard. One side of the upper half of the case is not closed. The last rotation mechanism is disposed on the upper half of the case. The last rotation mechanism comprises a cylinder and a rotary table; the rotary table is disposed at the top of the cylinder; the last-compressing ironing base is disposed on the top inner wall of the case and right faces the rotary table. During heel shaping, the heel backer shaper can adjust the operating performances, such as the position of the shaping wheel on a backer, knocking force, ironing temperature and delay time, according to the quality conditions of a shoe so as to acquire optimal shaping effect; during normal working, the heel backer shaper can operate in an automatic manner; an electrothermal plate on the last-compressing ironing base is controlled via a three-compartment closed-loop controlled silicon voltage regulator, temperature control precision is greatly improved, a temperature difference can be controlled within a 10 DEG C range, and the plane of the shaped backer is flat, with clear edge and smooth wrinkle-free surface.

This utility model provides a reinforced concrete foundation and photovoltaic support suitable for mountain foundations. The foundation includes a rock anchor bolt foundation and an above-ground reinforced concrete foundation. The rock anchor bolt foundation includes rock mass with drilled holes, anchor bolts anchored into the drilled holes, and anchor bolt fixing reinforcement connected to the upper end of the anchor bolts. The anchor bolt fixing reinforcement is embedded in the above-ground reinforced concrete foundation. The above-ground reinforced concrete foundation includes a foundation platform and short reinforced concrete columns extending vertically upwards from the centroid of the foundation platform. The bottom of the photovoltaic support column is embedded in the short reinforced concrete column. The rock anchor bolt foundation and the above-ground reinforced concrete foundation are formed as a single structure through the reinforced concrete structure, which can effectively fix the above-ground reinforced concrete foundation. This avoids the risk of the power station overturning due to excessive pull-out force on one side of the foundation caused by excessive eccentricity between the column and the foundation centroid due to terrain limitations or construction deviations.

This utility model relates to the field of conveying device technology, specifically to a non-powered conveyor frame for rolling mill billets, including a milling mill discharge roller conveyor and a rolling mill feed roller conveyor. Multiple rollers are installed between the milling mill discharge roller conveyor and the rolling mill feed roller conveyor. Each roller has an anti-collision component installed at one end near the milling mill discharge roller conveyor, and the other end is rotatably connected to the rolling mill feed roller conveyor. An elastic reset component is installed inside each anti-collision component and between it and the roller. When the billet bends during conveying on the milling mill discharge roller conveyor, it first contacts the anti-collision component. The anti-collision component, in conjunction with the elastic reset component, pushes the bent portion of the billet back onto the milling mill discharge roller conveyor to prevent damage to the roller. Simultaneously, the roller-type conveyor frame has a smooth surface, a small contact area with the copper pipe, eliminates the need for nylon sheets or similar materials, provides minimal resistance, and can adapt to any height difference.

This disclosure provides an ultrasonic transducer assembly, a single-element ultrasonic transducer, and an ultrasonic testing device. The ultrasonic transducer assembly includes a first matching layer, a second matching layer, a piezoelectric material layer, and a conductive backing layer stacked sequentially from top to bottom. The first matching layer is made of a non-conductive material, and the second matching layer is made of a conductive material. The upper surface of the first matching layer is the ultrasonic signal emitting surface, and signal electrodes are disposed on the side of the second matching layer. This disclosure directly leads out the signal electrodes from the side of the second matching layer. Compared with the traditional method of leading electrodes from the front of the emitting surface, the side electrode method avoids occupying the emitting surface, effectively expands the sound wave emitting area, and improves the transducer performance. At the same time, since the side operating space is relatively large, it avoids the problem of low product yield caused by limited operating space, and the side electrode method makes the upper surface of the product flatter and the dimensions more accurate.

The invention provides a compaction control system of a heat treatment furnace door, which comprises a mechanical structure and software control, the mechanical structure comprises six hinge mounting seats mounted on the outer side of a furnace chamber, and the six hinge mounting seats are respectively arranged on the upper, middle and lower parts of the left and right sides of the furnace chamber; an air cylinder and a curved surface pressing block mechanism are installed on each hinge installation base, the air cylinders move to drive the curved surface pressing block mechanisms to do curvilinear motion, and rolling bearings are symmetrically installed on each curved surface pressing block mechanism in the axial direction; a metal protection plate is installed at the corresponding position of the furnace door, when an air cylinder moves forwards or backwards, a pressing block on a curved surface pressing block mechanism is driven to do curvilinear motion, the furnace door is pressed through a rolling bearing, and the rolling bearing makes rolling motion after making contact with the metal protection plate. Software control adopts synchronous action control of six air cylinder systems on the left side and the right side, air supply and exhaust of air cylinders are independently controlled through middle-sealed type electromagnetic reversing valves respectively, and the air cylinders adjust clamping blocks to act synchronously through precise exhaust throttling valves.

This invention relates to the field of coffee machine technology and proposes a coffee machine powder receiving cylinder movement structure, including a housing. A grinding assembly is disposed within the housing, a tamping cylinder assembly is disposed on one side of the grinding assembly, and a receiving cylinder assembly is disposed below the tamping cylinder assembly. A connecting rod fixed shaft movement track is provided between the tamping cylinder assembly and the receiving cylinder assembly. A fixing component is snapped onto one side of the receiving cylinder assembly, and a lead screw assembly is connected to the fixing component. The grinding assembly guides coffee powder into the receiving cylinder assembly. The lead screw assembly drives the fixing component to move, simultaneously driving the receiving cylinder assembly connected to the fixing component to move upward along the connecting rod fixed shaft movement track. The receiving cylinder assembly moves to below the tamping cylinder assembly and engages with it. During this process, the tamping cylinder assembly and the receiving cylinder assembly are concentric and coaxial in the vertical direction. The tamping cylinder assembly applies downward force, cooperating with the receiving cylinder assembly to compress the coffee powder into a uniformly dense coffee cake.

The utility model discloses a sheet metal part drilling fine adjustment mechanism relates to sheet metal part drilling field, the utility model discloses a first electric sliding table, and the output of first electric sliding table is equipped with the first sliding seat, and the top of first sliding seat is installed with second electric sliding table, and the output of second electric sliding table is equipped with the second sliding seat. The utility model discloses through being provided with the shielding cloth, first bolt, second bolt, first side plate and second side plate, the top of first electric sliding table and second electric sliding table can be shielded by the shielding cloth, prevent the direct drop of debris to the top of first electric sliding table and second electric sliding table, thereby prevent the hard debris (such as metal scrap) and cause the sliding seat to be stuck in the clearance between electric sliding table and sliding seat and affect the movement of sliding seat, to ensure that the sliding seat can move smoothly, prevent the sliding seat to push the debris movement simultaneously and make the debris and the top of electric sliding table rub and scratch the top surface of electric sliding table, thereby prolong the service life of electric sliding table.

This utility model discloses a conical installation device for a cartridge filter in an air conditioning unit. The device comprises a top disc, hexagonal bolts, diagonal support rods, fixing rods (in three lengths), internal hexagonal screws, flat washers, and spring washers. This utility model uses a specialized tooling mold for positioning. The diagonal support rods, composed of three round steel pipes arranged in an isosceles triangle and welded into a conical structure, are finished with hexagonal bolts at the ends and secured with a handle locking device. The filter cartridge can be disassembled and assembled without any special tools. This solves the problems of deformation and air leakage caused by insufficient installation strength in cartridge filters, while also shortening installation and disassembly time, ensuring the air conditioning unit can be put into use quickly. It is particularly suitable for air conditioning systems in cigarette factories, welding workshops, and other similar fields.

The utility model provides a rolling device of plastic extrusion production line, including: rolling device, clamping device and conveying device, rolling device includes: rolling frame, servo motor, hold-down mechanism and rolling mechanism, servo motor is on rolling frame, servo motor output end installs rolling mechanism, rolling mechanism can be rotatingly installed on rolling frame, the rolling mechanism is equipped with the clamping device, the clamping device is equipped with the conveying device. A conveying device is arranged on one side of the winding frame and comprises a guide rail, a movable bearing device, a blocking mechanism and an upward guiding assembly, a clamping device is installed above the movable bearing device and comprises a base, an installation rod and a supporting clamping mechanism, and the base is connected with the top of the movable bearing device through the installation rod. According to the winding device of the plastic extrusion production line, the accurate clamping action is achieved through the linkage shaft and the clamping arms, the opening and closing state of the clamping arms can be conveniently and rapidly adjusted through the design of the telescopic adjusting rods, and therefore plastic rolls are efficiently grabbed and released, and the stability of the plastic rolls in the transferring process is guaranteed.

The invention belongs to the technical field of biology, and particularly relates to Meyerozyma caribba XX2120, and the preservation number of the Meyerozyma caribba XX2120 is GDMCC No: 67777. The invention further relates to a preparation method of the Meyerozyma caribba XX2120. The strain is obtained by taking saccharomycetes X2120 as a starting strain, carrying out ARTP mutagenesis treatment and screening, has relatively strong acid resistance, relatively high salt stress resistance and certain alcohol resistance and aldehyde resistance, can effectively utilize monosaccharide, disaccharide and trisaccharide, has a wide utilization range on carbohydrate and has a relatively good utilization rate on inorganic nitrogen. Moreover, the strain can be used for producing mycoprotein through liquid fermentation by taking Luzhou-flavor distillers' grains as a raw material, and also can be used for performing solid fermentation on the Luzhou-flavor distillers' grains, so that the true protein content of the distillers' grains is increased, the nutritional value of the distillers' grains is improved, and the recycling of distillers' grain resources is effectively promoted.

This disclosure provides a polishing pad and a final polishing apparatus. The polishing pad includes: a substrate; and a deformable unit disposed on the substrate. The deformable unit is capable of switching the polishing pad between a first shape mode and a second shape mode by deformation. In the first shape mode, the polishing surface of the polishing pad has grooves, and in the second shape mode, the polishing surface of the polishing pad is flat.

This invention discloses a water-soluble punching and shearing oil, comprising the following components in 100 parts by weight: 20.0-35.0 parts rust inhibitor; 10.0-20.0 parts lubricant; 3.0-10.0 parts surfactant; 0.5-3.5 parts bactericide and mildew inhibitor; 0.5-2.0 parts other additives; and the balance being deionized water. This punching and shearing oil can be used in various sheet metal deep drawing and punching processes. It can be diluted for use, effectively reducing users' oil costs. Simultaneously, it avoids oil mist and VOC problems caused by using oily products in the workshop, thus purifying the workshop operating environment. Parts punched and sheared using this invention have smooth surfaces, complete cuts, good gloss, and are burr-free. Processed parts are easy to clean or require no cleaning, significantly saving on overall costs such as materials, water resources, and labor.

This invention discloses an automated molding and manufacturing equipment and method for utility poles, relating to the technical field of utility pole manufacturing equipment. It includes an installation base, a mold assembly on the installation base, a reinforcing cage on the mold assembly, and a feeding device located directly above the reinforcing cage. The feeding device is equipped with a dispersing and leveling mechanism and a gravity-flipping feeding mechanism. This invention, through the feeding device and the dispersing and leveling mechanism, evenly disperses and guides concrete material to different positions in the feeding hopper, achieving oscillating and dispersing feeding. This effectively avoids the problems of clumping and localized pile-up caused by concentrated concrete material accumulation. The leveling component quickly levels the dispersed material, ensuring that the surface of the concrete material in the feeding hopper remains flat and of uniform height. Finally, the gravity-flipping feeding mechanism quantitatively feeds the material, eliminating the need for manual intervention in the feeding process, significantly reducing labor intensity and improving production efficiency.

The invention discloses flaky alumina and a preparation method thereof, the flaky alumina is in a square sheet shape and has a single crystal structure, the grain size of the flaky alumina is 300-1300 nm, and the grain thickness is less than or equal to 150 nm. The preparation method comprises the following steps: placing roasted SB powder and a quaternary ammonium base solution in a pressure container in a solid-liquid two-phase separation manner, carrying out a gas-solid reaction under certain heat treatment conditions, and drying and roasting the reacted solid powder to obtain the flaky aluminum oxide. The flaky aluminum oxide is regular in structure and flat and smooth in surface, can be used as a polishing material, a coating, a catalysis material and an adsorption material, and is simple in preparation process, easy in raw material obtaining and easy in industrial production.

The application discloses a kind of invisible optical cable and preparation method thereof, belong to optical cable technical field, including multiple optical fibers, and sleeve is arranged at the periphery of multiple optical fibers, and sleeve is prepared using transparent material.The woven yarn is further provided in the sleeve in the application, and the woven yarn is in mesh structure, and multiple optical fibers are sequentially and side by side arranged in the mesh structure of woven yarn.In the application, the arrangement order of each optical fiber is naturally limited by the mesh structure of woven yarn, and each optical fiber can be accurately distinguished by observing the position of optical fiber in the mesh during construction, without any color marking or special identification equipment, especially suitable for multi-core invisible optical cable.The yarn of woven yarn is extremely thin, and the mesh structure is invisible under normal visibility, the overall transparency of optical cable is high, and it is perfectly integrated with indoor environment, maintaining excellent invisible effect.

The invention belongs to the technical field of repair material production equipment, discloses ultraviolet curing lining hose flattening and rolling equipment and a production system, and particularly relates to the ultraviolet curing lining hose flattening and rolling equipment which comprises a supporting assembly, one end of the supporting assembly is connected with a sliding rail, and the other end of the supporting assembly is connected with a lifting assembly. The end, away from the sliding rail, of the supporting assembly is connected with a connecting assembly, the two ends, in the width direction, of the connecting assembly are connected with a pre-unfolding assembly and a detection assembly correspondingly, the end, close to the sliding rail, of the supporting assembly is connected with a working assembly, and through cooperation of the supporting assembly and the working assembly, precise regulation and control of rolling pressure are achieved. The telescopic rod dynamically adjusts the height of the movable plate according to feedback data of the pressure sensor, so that the pressing plate of the rolling part always contacts the hose at the optimal pressure; the elastic connection design of the rotating roller and the pressing plate can adapt to tiny fluctuation of the surface of the hose, and the hose can be prevented from being damaged due to too large pressure.

The present application relates to a kind of sanitary grade pneumatic actuator, it is related to valve actuator technical field, it includes rotating shaft, shell, piston, spring, and respectively sealedly arranged on the base and end cover of shell two ports, gas source access is installed on end cover or shell, gas source access is installed on the base or shell, spiral chute is opened on the circumferential surface of piston, guiding piece is arranged on the inner circumferential side wall of shell, guiding piece is arranged in spiral chute, piston is connected with driving element, fixed plate is fixedly installed on driving element, plane bearing is arranged between fixed plate and base, the end of spring respectively touches the end face of piston and fixed plate, the end of driving element away from and connected with piston penetrates base and is arranged outside base and protrudes, and is fixedly connected with rotating shaft, driving element and base are rotationally sealedly connected.The effect of reducing friction, reducing noise, improving the service life of component, improving transmission efficiency and use stability.

This utility model relates to the field of stainless steel flue processing, and discloses a residue cleaning structure and a steel pipe cutting device. It includes a circumferential cutting device and a slag cleaning assembly. The circumferential cutting device includes a base, a rotating disk, and a laser cutting head. The rotating disk is rotatably connected to one side of the base. The formed steel pipe passes through the base and the rotating disk. The laser cutting head is connected to the rotating disk and rotates synchronously to perform circumferential cutting on the steel pipe passing through the rotating disk. The slag cleaning assembly includes a support frame, a slag suction pipe, and a fan. The fan is connected to the slag suction pipe to generate suction. The slag suction pipe is slidably connected to the support frame to be inserted into the steel pipe during laser cutting to absorb and clean the residue. During cutting, the slag suction pipe can be inserted into the steel pipe to remove the slag generated during cutting, resulting in cleaner residue cleaning and improved quality of the cut steel pipe. Furthermore, the steel pipe can be cut promptly after forming, improving work efficiency.

The utility model belongs to the technical field of decoration material relates to a multilayer heterochromatic composite structure's floor, including the surface decorative layer, and the composite substrate layer and the back balance layer of downward in turn, be equipped with first glue layer and second glue layer between each layer of composite substrate layer, the composite substrate layer is by three layers and above -mentioned super -thin moisture -proof density board, PVC carbon crystal board and inorganic straw board base material layer group billet and is formed, the colour of each base material layer is red, black, xylophone colour, blue, green, yellow, brown etc. The utility model discloses the composite substrate layer structure is by the super -thin moisture -proof density board, PVC carbon crystal board, inorganic straw board of different colour combination and is formed, has strong stability, surface level, is not easy to crack deformation, and the characteristics such as suitable ground heating environment. The floor disclosed effectively combines the advantages of various substrates, and is superior to ordinary floor in size stability, heat and moisture resistance, fire resistance, corrosion resistance, etc. The cost is reduced, and the product added value is obviously improved.

The utility model provides a waffle box carrier which comprises a material placing disc, a barrier strip structure and an adhesive tape, and the material placing disc is provided with a flat placing surface; the barrier strip structure comprises a transverse barrier strip and a vertical barrier strip which are integrally formed on the placing surface; the transverse barrier strips are matched with the vertical barrier strips to divide the placing surface into a plurality of clamping grooves; the rubber strips are made of elastic materials and detachably installed on the inner walls of the transverse barrier strips respectively. During use, the adhesive tape is mounted on the transverse barrier strip, then waffle boxes are sequentially placed into the clamping grooves, and finally, the discharging disc is mounted on a wafer feeding platform. When the waffle boxes are unloaded, an operator makes contact with the waffle boxes through the avoiding holes and takes out the waffle boxes one by one. The wafer feeding device can be compatible with a wafer feeding platform, and a wafer box feeding platform or a static support does not need to be additionally arranged. The discharging disc and the barrier strip structure adopt an integrated design and processing mode, the manufacturing cost is far lower than that of a waffle box feeding platform or a waffle box static support, and therefore the problems that a traditional waffle box feeding platform is high in cost and low in efficiency are solved.

The utility model discloses a kind of circular non-standard knife holders, belong to oil cylinder production and manufacturing technical field, a kind of circular non-standard knife holder, including knife holder box body, knife holder box body is ladder structure, is successively provided upper ladder surface, side surface and middle ladder surface, the top end between upper ladder surface and the bottom end surface of knife holder box body is provided with vertical installation round hole groove structure, round hole groove and strip-shaped through hole are provided with between middle ladder surface and the bottom end surface of knife holder box body circular through hole, transverse side of knife holder box body is provided with transverse installation round hole groove structure, and circular cutter installation groove is set up on side surface, and circular cutter installation groove is located between upper ladder surface, middle ladder surface.It can improve the cutting position of blade, enhance the utilization of cutting edge, reduce the use cost of scraping and rolling light cutter, improve processing precision and stability, improve the surface finish of workpiece, reduce the loss of wear, while can avoid chip accumulation, ensure processing efficiency and the surface quality of processing product.

This utility model discloses a novel ventilated floor for grain storage and a grain storage facility. The novel ventilated floor comprises several floor panels, each rectangular in shape, which can be interlocked. Each floor panel contains a ventilation cavity, and ventilation holes communicating with the ventilation cavity are provided on all four sides of the floor panel. Multiple air outlets communicating with the ventilation cavity are provided on the top surface of the floor panel. This utility model embodiment ensures good ventilation performance while improving the convenience and safety of operations within the storage facility.

The application relates to the technical field of powder coating, in particular to a powder coating suitable for laser curing and a preparation method and application thereof. The powder coating for laser curing comprises the following components in parts by weight: resin, curing agent and heat-conducting agent, and other components; the mass ratio of the resin, the curing agent and the heat-conducting agent is 50-90:510:510; the heat-conducting agent is selected from two or more of graphene oxide, nano-aluminum oxide, carbon nanotubes, aluminum nitride and hexagonal boron nitride. The powder coating for laser curing of the application has excellent surface gloss, flatness and substrate adhesion after laser curing, and has good chemical corrosion resistance, and can realize a curing effect equivalent to that of current conventional thermal curing, and has significant application value in the fields of decoration and protection.

The utility model relates to a backlight module and a display terminal. The backlight module comprises a backlight main body and an opening adhesive; the opening glue is adhered to the edge of the backlight main body, the opening glue comprises a plurality of adhering sections, the ends, close to each other, of every two adjacent adhering sections are overlapped to form an overlapping part, at least one of the adhering sections and the backlight main body is provided with a thinned opening in the area corresponding to the overlapping part, and the area of the thinned opening is larger than or equal to that of the overlapping part. According to the backlight module, the ends, close to each other, of the two adjacent bonding sections are overlapped to form the overlapping part, so that light leakage between the two adjacent bonding sections is avoided; the thinning opening is formed in the area, corresponding to the overlapping part, of at least one of the bonding section and the backlight body, and the area of the thinning opening is larger than that of the overlapping part, so that the total thickness of the backlight module in the area corresponding to the overlapping part is reduced, and the upper surface of the opening glue is as flat as possible.

This invention relates to the field of lithium-ion battery manufacturing technology, specifically providing a full-tab battery cell for large cylindrical batteries, its preparation method, and applications. This invention innovatively employs a "winding-fixing-laser axial cutting-graded flattening" process flow, changing the traditional "cut-then-winding" process long used in the industry, achieving a breakthrough in the precision of tab forming. Specifically, after the bare cell is wound, the blank areas of each current collector layer have formed a stable stacked structure, which is precisely fixed using a special fixture and simultaneously cut along the axial direction by laser, completing the high-precision forming of multiple tabs in one step. This method fundamentally eliminates the problem of accumulated deviations caused by step-by-step operations in traditional winding processes, stably controlling the tab alignment accuracy within 0.1mm, effectively solving the long-standing problem of alignment consistency in existing technologies.

The utility model discloses a tank paint spraying device which comprises a bottom plate, the top face of the bottom plate is fixedly connected with a plurality of paint spraying plates, two side plates are installed at the top end of the bottom plate, a cylindrical concave face is arranged on the face, opposite to the other side plate, of each side plate, a frosted face is arranged on the side wall face, provided with the concave face, of each side plate, and a plurality of brush bodies are installed on each side plate. A plurality of bristles are fixedly connected to the surface of the brush body, a tank body is placed at the position, located between the two side plates, of the bottom plate, the two side plate installation frosted faces capable of fixing the tank body and the brush body are arranged at the top end of the bottom plate, the tank body before paint spraying is cleaned, the surface of the cleaned tank body is smoother and neater, and the paint spraying effect of the surface of the tank body is better. And the working efficiency is higher.

The invention relates to the technical field of textiles, and discloses a preparation process of a light-weight environment-friendly automotive trim non-woven fabric. According to the process, three layers of fiber components including regenerated polyester, bio-based polyester and natural fibers are prepared; a sandwich structure is constructed by adopting multi-guide-bar parallel net forming, online electrostatic spinning is performed on a bio-based microporous membrane between layers, and low-melting-point hot melt adhesive powder is applied; and after needling reinforcement and gradient hot air curing are conducted, far infrared preheating is combined with a cold pressing mold for hot punching forming. While the gram weight is reduced, the sound absorption coefficient is improved, and the sound absorption material has excellent flame retardance, self-cleaning performance and full-life-cycle closed-loop recycling capacity.

The application provides a preparation method of a flat epitaxial diamond semiconductor and relates to the technical field of diamond semiconductor preparation. The preparation method comprises the following steps: cleaning a microwave plasma device chamber, pretreating a single crystal diamond substrate, etching the single crystal diamond substrate and preparing a hydrogen-terminated diamond semiconductor, wherein a magnetic field generated by a magnetic excitation coil is used to constrain the microwave plasma in the microwave vapor deposition device, so that carbon atoms are uniformly and rapidly deposited on the single crystal diamond substrate, and finally, a single crystal diamond epitaxial layer with a flat surface is obtained. The preparation method of the application can synergistically optimize the carrier mobility, surface density and square resistance of the hydrogen-terminated diamond semiconductor, is simple and easy to operate, has low cost and low energy consumption, is high in efficiency, and is beneficial to industrial large-scale production and popularization.

The application belongs to the technical field of semiconductor manufacturing, and discloses an inert gas assisted pixel planarization etching method, which comprises the following steps: etching a ROIC wafer with a metal column and a dielectric layer by using a mixed plasma containing fluorine-containing gas and oxygen-containing gas, and stopping etching when the metal column is completely exposed or slightly exposed; after the first step of etching is completed, stop feeding the fluorine-containing gas and the oxygen-containing gas, feed inert gas, and etch the surface of the ROIC wafer by using the inert gas plasma. By separating and combining the high-selectivity chemical etching and the low-selectivity physical polishing etching function, on the basis of controlling the first etching time to prevent the formation of pits, the second inert gas physical sputtering is used for surface smoothing and metal column height fine adjustment, the high planarity of the metal column and the dielectric layer surface is realized, the ideal interface foundation is provided for subsequent electrode deposition, and the device performance and the yield are improved.

The invention relates to the technical field of plastics, in particular to an ultrathin micro-texture mobile phone rear cover plate and a preparation method thereof. The method comprises the following steps: carrying out end group regulation on polyhexamethylene adipamide resin through hexamethylene diamine, and carrying out melt blending on the polyhexamethylene adipamide resin, tetraethyl orthosilicate and hydroxyl-terminated polydimethylsiloxane through a sol-gel reaction to obtain hybrid inorganic powder; hydroxyl-terminated polydimethylsiloxane and hexamethylene diisocyanate are sequentially added by adopting a step-by-step feeding strategy for modification. And then molding in a mold with micro textures through an injection molding-compression molding process, and carrying out limited annealing treatment. According to the invention, the problems of incomplete micro-texture copying, easy scratching and poor thermal dimensional stability of the ultrathin plate are effectively solved, and high-precision texture transfer, excellent surface scratch resistance and long-term flatness of the plate with the thickness of 320-380 microns are realized.