37results about How to "Avoid degumming" patented technology

The utility model discloses a lens clamp, an optical assembly and a laser radar, and relates to the field of optical equipment. The adhesive dispensing groove is formed in the first clamping surface of the lens clamp, so that the adhesive dispensing groove can accommodate an adhesive in the bonding and fixing process of the lens, and the adhesive is easy to flow within the range of the adhesive dispensing groove even if the adhesive flows due to extrusion and is not easy to overflow to an optical plane outside the clamping space. Therefore, when the lens clip provided by the embodiment of the utility model is bonded and fixed with the lens, the adhesive is not easy to pollute the optical plane of the lens due to overflowing, so that the optical component has good performance. Furthermore, the first adhesive with higher hardness and the second adhesive with lower hardness are combined for use, so that not only is the bonding strength ensured, but also the problem that the lens is degummed or cracked due to larger stress caused by excessive use of the first adhesive is avoided.

The invention relates to an autoclaved laminating device of laminated glass and a preparation method of the laminated glass, the autoclaved laminating device of the laminated glass comprises a vacuum bag, the vacuum bag is used for placing the laminated glass, the vacuum bag is connected with a first vacuum pump through a first exhaust pipe, the vacuum bag is arranged in a sealing device, and the first exhaust pipe is connected with a second vacuum pump through a second exhaust pipe. The first exhaust pipe penetrates through a sealing device and then is connected with the vacuum bag, a valve is arranged on the sealing device, and the sealing device is connected with a second vacuum pump through a second exhaust pipe. The sealing device is arranged on the outer layer of the vacuum bag, and the inner surface and the outer surface of the vacuum bag are synchronously vacuumized, so that the rubber sheet is not stressed in the vacuumizing link, and the air guide lines of the rubber sheet exhaust smoothly, so that the aims of quickly and smoothly exhausting air in a cementing layer and avoiding residual gas retention are fulfilled; and the phenomena of degumming and bubbles of the laminated glass caused by residual gas are prevented.

The invention belongs to the technical field of adhesives, and particularly discloses a full-biodegradable corrugated board adhesive and a preparation method thereof. The preparation method of the adhesive comprises the following steps: preparing surface saccharification straw slurry; preparing starch glue from water, starch, redispersible latex powder, polyvinyl alcohol powder and caustic soda flakes; uniformly mixing starch glue and the surface saccharified straw slurry, stirring and defoaming; and adding borax to adjust the viscosity to obtain the full-biodegradable corrugated board adhesive. According to the adhesive, surface-saccharified straw fine powder is introduced into a starch glue system, the surface-saccharified straw fine powder has certain adhesion, excellent adsorbability, good fluidity and easiness in coating, and while the adhesion is assisted, the fine straw is of a fiber structure and has rich micropores, so that the viscosity stability can be maintained; the usage amount of borax is reduced. And water in the adhesive is prevented from being excessively adsorbed and permeated by coarse pores of the corrugated peaks, so that the high-speed corrugated production is more stable, and the surface paper is prevented from penetrating through the bottom, warping and wrinkling. The preparation process is simple and easy to control, can be prepared at any time, and can also be prepared in advance for long-term storage and use.

The invention relates to the technical field of automatic production, in particular to an automatic rubberizing machine which comprises a feeding assembly, a temporary storage assembly, a material moving assembly, a rubberizing assembly and a pressing assembly, and the feeding assembly drives special-shaped parts to enter the temporary storage assembly; the temporary storage assembly is provided with a plurality of temporary storage material grooves, and the special-shaped parts are temporarily stored and stored. The material moving assembly is provided with a transverse moving mechanism and a material moving suction cup, sucks the multiple special-shaped parts, moves the special-shaped parts to the rubberizing assembly and places the special-shaped parts in part hole grooves of the rubberizing assembly; the rubberizing assembly is provided with a rubberizing table seat and a longitudinal moving mechanism, the longitudinal moving mechanism drives the rubberizing table seat to move to a film taking and placing station to place a preset film, and the pressing assembly performs pressing operation on the preset film. In conclusion, automatic lamination of the preset film on the special-shaped part can be realized, so that the labor cost is reduced, the rubberizing quality of the special-shaped part is improved, the lamination efficiency of the preset film is improved, and the effect of reducing the production cost is realized.

The invention relates to the technical field of adhesives, in particular to pyrolysis viscose water, a preparation method and application of the pyrolysis viscose water in electrolytic film cutting. The pyrolytic viscose water comprises the following components in parts by weight: 90-95 parts of modified polyacrylic resin, 15-35 parts of tackifying resin, 1-3 parts of a curing agent and 80-85 parts of a solvent. The invention also provides a preparation method of the composition. Compared with the prior art, the pyrolytic viscose glue prepared by the invention has the advantages of better thermal stability, no residual glue and the like, and is suitable for being applied to electrolytic film cutting parts.

The invention belongs to the technical field of magic tape compounding equipment, and particularly relates to compounding equipment for an anti-falling magic tape and a use method of the compounding equipment. Comprising an equipment body, one end of the equipment body is provided with a first supply part and a second supply part, the other end of the equipment body is provided with a winding part, one side of a base is provided with a driving box, the other side of the base is provided with a fixing wall corresponding to the driving box, and a gluing device is arranged between the driving box and the fixing wall and can glue a first bonding surface of a base fabric; the rear side of the gluing device is provided with an abutting and pressing combination part, and the abutting and pressing combination part can conduct abutting and pressing combination on the glued first bonding face of the base layer fabric and the second bonding face of the hook-and-loop fastener fabric; the cleaning assembly can be used for cleaning and dedusting the first bonding surface on the base fabric before the gluing device and the second bonding surface on the thread gluing fabric before the composite part is pressed; the bonding surface of the fabric is cleaned, so that the bonding strength and the uniformity are improved during compounding, and the fabric is not easy to fall off or damage during use.

The invention discloses a deep ultraviolet LED packaging structure which comprises a substrate and a support connected to the upper surface of the substrate, the support is of a surrounding structure, a die bonding cavity is formed in the middle of the support so that a light emitting element can be conveniently placed in the die bonding cavity, and an assembling groove which surrounds the die bonding cavity and is used for placing a lens is formed in the upper surface of the support. The support is provided with a dispensing groove surrounding the die bonding cavity in the groove bottom of the assembly groove, the support is further provided with an overflow groove surrounding the dispensing groove in the groove bottom of the assembly groove, and a plurality of overflow channels communicating the dispensing groove with the overflow groove are arranged between the dispensing groove and the overflow groove. S2, hot air is blown downwards from the upper portion of the deep ultraviolet LED packaging structure, meanwhile, a lens is placed in the assembling groove, and a blank is manufactured; s3, the blank in the step S2 is placed in an oven to be baked; and S4, the blank is placed in a high-temperature oven to be baked at a high temperature, a finished product is prepared, the gluing uniformity is improved, air channels are prevented from appearing in glue, and then the product quality is improved.

This utility model belongs to the field of plywood cold pressing technology, and particularly relates to an environmentally friendly plywood cold pressing device, comprising: a fixed frame, the fixed frame being "n"-shaped, a hydraulic push rod fixedly installed on the top of the fixed frame, the bottom of the hydraulic push rod penetrating into the interior of the fixed frame, and a cold pressing plate fixedly connected to the output end of the hydraulic push rod; six support columns, all six support columns being fixedly connected to the bottom of the inner wall of the fixed frame, and the top of the six support columns being fixedly connected to the same housing; and a moving component, the moving component being disposed inside the housing and used to drive two clamping plates to move simultaneously. Through the above structure, the plywood can be cold-pressed. During the cold pressing operation, this device can limit and fix both sides of the plywood, avoiding slippage and displacement between the layers of the board during cold pressing, or delamination due to insufficient bonding strength, thus facilitating use by workers.

The application relates to the field of industrial electrical technology, and discloses an automatic glue coating machine, which comprises a glue coating cylinder, a lower glue coating cylinder fixedly connected below the glue coating cylinder, a glue nozzle fixedly connected to the bottom of the lower glue coating cylinder, a gas cylinder fixedly connected to the surface of the glue coating cylinder, a flange connecting piece fixedly connected to the top of the glue coating cylinder, a glue storage barrel fixedly connected to the surface of the lower glue coating cylinder, a cleaning assembly arranged in the glue coating cylinder and used for cleaning the lower glue coating cylinder and the glue nozzle, and a quality keeping assembly arranged on the surface of the glue coating cylinder and used for keeping the viscosity of glue uniform. The glue nozzle is extruded by a bidirectional cleaning plug, so that the glue in the glue nozzle can be effectively discharged after coating, the glue nozzle blockage problem is effectively solved, the glue coating process is more continuous and stable, the production interruption and the time cost of manual cleaning caused by blockage are reduced, the structure avoids the problem that glue residues cause blockage again in the next use, and the quality consistency of each coating is ensured.

The invention discloses a photoresist coating method for a large-aperture special-shaped monocrystalline silicon diffraction element, which solves the problems of small application range, poor coating quality and easy falling of a photoresist layer in the existing photoresist coating method, and specifically comprises the following steps: step 1, screening surface states; step 2, cleaning the surface of the element; step 3, coating a tackifier; step 4, coating a photoresist; and step 5, quality detection. According to the method, the tackifier is firstly coated before the photoresist is coated, and the action mechanism of the tackifier is mainly to replace a hydrophilic Si-HO group carried by an oxide layer on the surface of the monocrystalline silicon substrate, so that the hydrophilicity of the monocrystalline silicon substrate is changed into hydrophobicity, the adhesive force of the monocrystalline silicon substrate and the photoresist is increased, the degumming phenomenon is avoided, the firmness of the photoresist layer is improved, and the service life of the photoresist layer is prolonged.

The invention relates to the technical field of preparation of a sizing material for adhesive paper from an edible material, in particular to a process for preparing the sizing material for the adhesive paper from the edible material, which comprises the following steps of: preparing, injecting carrier water, putting carrier powder, adding caustic soda liquor, adding main body water, adding a modifier, gelatinizing and mixing. In the process, a paste supply mechanism and a pit supply mechanism are respectively adopted for production, raw materials are fully and uniformly mixed, starch-containing carrier powder is modified under the action of caustic soda liquor through a modifier and borax with specific raw material dosage, and the carrier powder is composed of one or more of corn starch, flour and glutinous rice flour. The modifier comprises an anhydride compound, and a production process is combined, so that the sizing material is applied to batch production of the adhesive, better production quality can be ensured, the phenomena of falling, residual adhesive, damage to the surface of an adhered object and the like in the use process are reduced, and the practicability of the adhesive is improved.

The invention discloses a carbon fiber composite material valve and a design method thereof, and belongs to the field of valve design, an actual valve body adopts a metal material as an inner container, the outer layer is coated with a CFRP material, and the two materials are glued into a whole through epoxy resin. The thickness of the CFRP material coated at different positions of the valve body is different, the thicker positions of the CFRP layer are the inner sides of the flanges at the two ends, the outer wall of the position connected with the large bolt and the annular outer wall in the flow direction of the valve body, and the other areas are only coated with the thinner CFRP layer as the appearance, so that the complete valve body of the carbon fiber composite material valve is formed. Meanwhile, the invention further discloses a design method of the carbon fiber composite material valve. The valve body of the valve is made of the CFRP instead of part of metal materials, weight reduction and noise reduction of the carbon fiber composite valve can be achieved by means of the advantages of low density and high vibration resistance of the CFRP, and the disadvantages of large weight and large noise of a traditional metal valve are overcome. The forming process of the CFRP material is facilitated.

The utility model discloses a tightness adjusting mechanism of a coating machine, relates to the technical field of coating machines, and provides the following scheme that the tightness adjusting mechanism comprises a base and a clamping mechanism arranged at the top of the base, the clamping mechanism comprises a basic assembly and a working assembly, the basic assembly comprises a guide roller, the guide roller is arranged at the top of the base, and the working assembly is arranged at the bottom of the base. The outer wall of the guide roller is slidably connected with a thin film, the working assembly comprises a clamping head, the clamping head is arranged at one end of the guide roller, a handle is arranged to drive the rotary disc to rotate in the base plate, a sliding shaft is in an inward contraction or outward expansion state when sliding in the rotary disc, meanwhile, the sliding shaft can drive the clamping head to slide on the groove disc, and the clamping head is clamped in the groove disc. According to the guide roller clamping device, the guide roller can be clamped and fixed when the clamping head slides inwards, or the guide roller is loosened when the clamping head slides outwards, so that the replacement process of the guide roller is more convenient, and the problem that the maintenance efficiency is too low due to the fact that the replacement process is too tedious is solved.

The utility model relates to a novel control arm bushing which comprises an outer sleeve, an inner sleeve, a middle sleeve and a rubber element, the middle sleeve is located between the outer sleeve and the inner sleeve, the rubber element is located between the outer sleeve and the inner sleeve and wraps the middle sleeve, the rubber element is axially provided with two buffering notches, the number of the buffering notches is two, and the buffering notches are symmetrically arranged. The connecting pieces are fixedly connected between the middle sleeve and the outer sleeve, the two connecting pieces are symmetrically arranged between the middle sleeve and the outer sleeve, the two connecting pieces and the two buffering notches are arranged in a staggered mode, the connecting pieces are wrapped by the rubber elements, and due to the arrangement of the connecting pieces, the rigidity of the control arm lining is improved, and the service life of the control arm lining is prolonged. The rubber element is located between the outer sleeve and the inner sleeve and wraps the middle sleeve and the connecting piece, so that the control arm bush has good vibration resistance and noise resistance, the buffer notches can provide deformation space for the rubber element when the control arm bush is in a torsion working condition, and the phenomena of tearing and degumming are avoided.

The utility model discloses a fireproof real wood veneer, and particularly relates to the technical field of wood veneers, the fireproof real wood veneer comprises a wood veneer main body, a nanometer fireproof coating is sprayed on the outer end face of the wood veneer main body, a supporting mounting plate is arranged on the outer side of one end of the wood veneer main body, and a concave mounting groove is formed in the end face of one side of the supporting mounting plate; a limiting mounting plate is arranged on the supporting mounting plate and located on one side of the concave mounting groove, a heat insulation mounting plate is arranged in the concave mounting groove, and a wood veneer base layer plate is arranged on the outer portion of the end, away from the supporting mounting plate, of the heat insulation supporting plate. In the actual use process, under the state that the supporting installation plate, the concave installation groove, the limiting installation plate and the heat insulation supporting plate are correspondingly arranged, adhesive is smeared at the attaching position of the concave installation groove and the heat insulation supporting plate, and the firm strength of connection between the heat insulation supporting plate and the supporting installation plate can be effectively improved; meanwhile, the supporting mounting plate and the heat insulation supporting plate are made of materials.

The invention relates to the field of petroleum and natural gas drilling tools, in particular to a screw drill motor stator, a screw drill motor and a forming method.The screw drill motor stator comprises a stator body, a rubber bushing is installed on the inner wall of the stator body, and a first spiral structure is arranged on the inner surface of the rubber bushing; in the stator body, sheaths are arranged at the two ends of the rubber bushing, the outer surfaces of the sheaths are fixedly connected with the stator body, and second spiral structures are arranged on the inner surfaces of the sheaths; the spiral line type of the first spiral structure is the same as the spiral line type of the second spiral structure. According to the motor stator, the second threaded surface is arranged on the inner surface of the sheath, so that the speed and the flow of drilling fluid passing through the motor stator can be increased on the basis of protecting the rubber bushing, and the motor stator has the advantage of improving the descending efficiency of the drilling fluid.

The utility model discloses a wind power blade shell glass fabric laying layer positioning mechanism which comprises a wind power blade body, adjusting grooves are symmetrically formed in one side of the top of the wind power blade body, supporting columns are symmetrically and fixedly connected to the upper end of the interior of the wind power blade body, and screw rods are arranged in the supporting columns. The wind power blade comprises a wind power blade body, rotating grooves are symmetrically formed in one end in the wind power blade body, a screw rod arranged in the wind power blade body rotates by rotating straight bolts arranged at the head and the tail of the wind power blade body, an instant moving seat transversely moves under threaded connection of the screw rod, and then four corners of glass fabric can be driven to be straightened; according to the wind power blade shell leveling device, the situation that glass fabric on a wind power blade shell is leveled by manually holding a leveling plate can be reduced, it can be guaranteed that the glass fabric laid every time is located at the same position through the arranged positioning columns, gaps among the multiple pieces of glass fabric are reduced, and therefore the service life of a wind power blade body is effectively prolonged.

The invention relates to the technical field of adhesive tapes, and particularly discloses a preparation method of a high-temperature-resistant anti-degumming environment-friendly degradable adhesive tape, according to the scheme of the invention, under the combined action of a tackifier and acrylic acid, a pressure-sensitive adhesive can show higher heat resistance, so that the adhesive tape is difficult to have a degumming phenomenon after being influenced by a high temperature, and the adhesive tape can be used for preparing a high-temperature-resistant anti-degumming environment-friendly degradable adhesive tape. The adhesive tape provided by the invention overcomes the defect of poor heat resistance of the adhesive tape in the prior art, also gives consideration to the balance between initial adhesion and permanent adhesion, improves the adhesive property of the adhesive tape, and is beneficial to the practical application of the adhesive tape.

The application relates to the technical field of diffusion plates, in particular to an efficient light diffusion plate of a direct backlight module and a preparation process thereof, which comprises a diffusion plate body, the outer side of the diffusion plate body is provided with a guard element, the outer ring surface of the guard element is embedded with elastic clamping pieces, and the four male corners of the elastic clamping pieces are embedded with mounting pieces. The plastic frame can effectively absorb external impact force, prevent the diffusion plate from being broken or deformed due to collision in the transportation, installation or use process, can close the side wall of the diffusion plate body, prevent moisture, dust or chemical substances from penetrating from the edge, avoid the internal material of the diffusion plate from being degraded due to environmental factors, and prolong the service life.

The utility model discloses a narrow-edge anti-drop fixing structure for an HUD (Head Up Display) light-transmitting cover, which relates to the technical field of HUD light-transmitting covers and comprises an upper shell, a cover plate is arranged on the inner side of the upper shell, and a fixing assembly is arranged between the upper shell and the cover plate; the cover plate is provided with a plurality of fixing assemblies, each fixing assembly comprises a clamping hole, an abutting block is arranged in the clamping hole, the top of the abutting block is fixedly connected with a limiting block, and a buckle is arranged in each clamping hole. Through the arrangement of the fixing assemblies, the problem that due to the fact that the adhesive area of the cover plate is small, adhesive degumming is caused in the high-temperature and high-humidity environment can be solved; through clamping connection of a profiling surface and a limiting hole on a buckle in the fixing assembly and an abutting block and a limiting block in the clamping hole, stable connection between the upper shell and the cover plate is ensured, the problem that the sealing performance of the upper shell and the cover plate is reduced due to adhesive failure can be effectively solved, dust and other fine particles are effectively prevented from permeating from the joint, and the service life of the upper shell and the cover plate is prolonged. And the fault maintenance rate of internal mechanical parts and electronic components is reduced.

The invention discloses a bio-based biodegradable adhesive tape based on modified cellulose and a preparation method of the bio-based biodegradable adhesive tape, and relates to the technical field of packaging materials, the bio-based biodegradable adhesive tape comprises a base material layer, a bonding layer, an anti-sticking layer, a surface coating and a special functional layer, the base material layer is an adhesive tape main body which is composed of 60%-70% of modified cellulose and 0.1%-0.3% of a hardening agent, the modified cellulose comprises the following raw materials in percentage by weight: 21%-25% of carboxymethyl cellulose ester, 18%-20% of nitrocellulose, 20%-22% of cellulose acetate and 1%-3% of hydroxy propyl cellulose; and the thickness of the base material layer is 60 microns. According to the invention, by preparing the modified cellulose, strong adhesion is realized, the problems of insufficient adhesion, insufficient strength and durability and poor processability are solved, and the adhesion of the adhesive tape is enhanced, so that the adhesive tape can be better adhered to the surfaces of different objects, and is easier to form and cut in the production process.

The utility model discloses a kind of semiconductor packaging jigs, it is related to semiconductor packaging technical field, including shell, the top middle part of shell is equipped with positioning slot, the inside of shell is provided with ejection mechanism, the ejection mechanism includes connecting rod, the top of connecting rod is fixed with ejector plate, the outside of connecting rod is sleeved with reset spring, the bottom of connecting rod is fixed with connecting plate, the bottom of connecting plate is fixed with moving block;The semiconductor packaging jig, by the setting of ejection mechanism, through the start of electric telescopic rod, drive extruding block to move, so that the inclined plane of extruding block extrudes the inclined plane of moving block, so that moving block drives connecting plate to rise, so that connecting rod drives ejector plate to rise, after the substrate of packaging is ejected, make substrate and positioning slot separate, so as to facilitate the substrate to be taken out, avoid forcibly taking out to cause product damage, improve the convenience of device to be taken out.

This utility model discloses an elliptical rubber bushing, including an outer bushing tube and an inner bushing tube arranged coaxially. The outer bushing tube is composed of a straight part and a semi-circular part forming an elliptical structure. An integral rubber main spring is vulcanized in the gap between the inner wall of the outer bushing tube and the outer wall of the inner bushing tube. An integral rubber strap is vulcanized on the outer surface of the outer bushing tube. Through a high-temperature vulcanization process, the outer bushing tube, the inner bushing tube, the rubber main spring, and the rubber strap are vulcanized into one piece to form an elliptical rubber bushing. Utilizing its asymmetrical structure, it provides differentiated stiffness in different directions. The higher stiffness in the longitudinal direction ensures support stability, while the larger elastic deformation space in the lateral direction can effectively absorb vibration, achieving independent control of multi-directional stiffness and adapting to compact installation spaces. This solves the technical problems of existing circular bushings having a limited range of adjustable stiffness in a specific direction, making it difficult to meet the dynamic performance requirements under complex working conditions and the limited space in some installation scenarios.

The present application provides a shell assembly method, a shell and an electronic device. The shell assembly method includes: providing a first shell and UV moisture dual-curing glue, arranging the UV moisture dual-curing glue on the first shell to form a UV moisture dual-curing glue layer; UV-curing the UV moisture dual-curing glue layer; providing a second shell, arranging the second shell on the side of the UV moisture dual-curing glue layer away from the first shell; moisture-curing the UV moisture dual-curing glue layer to form a glue layer, the glue layer is bonded between the first shell and the second shell, the shear strength between the glue layer and the first shell is ≥4MPa, and the shear strength between the glue layer and the second shell is ≥4MPa. The shells in the shell assembled by the assembly method are not easy to separate.

This utility model discloses a self-adhesive floor sticker with sound insulation effect, belonging to the technical field of self-adhesive floor stickers. The key technical points include a floor sticker body comprising a wear-resistant decorative layer, a sound-insulating buffer layer, a substrate layer, a self-adhesive layer, and a release film. The edges of the floor sticker body are provided with sealed connecting edges. The wear-resistant decorative layer, sound-insulating buffer layer, substrate layer, self-adhesive layer, and release film are arranged sequentially from top to bottom. The sound-insulating buffer layer includes two absorption layers, each with a micro-airbag layer on one side facing the other, and a barrier layer between the two micro-airbag layers. Through the composite design of the sound-insulating buffer layer—a double absorption layer, a barrier layer, and a micro-airbag layer—polyester fiber absorbs vibration noise, closed-cell foamed EVA blocks airborne sound transmission, and the micro-airbag layer enhances buffering and shock absorption. These three elements work together to form a multi-level sound barrier, effectively reducing the transmission of noise such as footsteps and furniture movement, meeting the requirements for a quiet environment.

The application discloses a leather transfer film and a preparation method thereof. The method comprises the following steps: sequentially performing anodic oxidation, hole expansion and silanization treatment on a rigid carrier substrate to obtain a release layer carrier substrate; coating a heat-reversible adhesive layer coating based on a Diels-Alder reversible reaction and curing; printing a pattern decoration layer; coating a self-repairing elastic layer coating, and performing ultraviolet curing and two-stage heat treatment at 60-80 DEG C and 90-110 DEG C to obtain an elastic layer; coating a reactive primer containing an isocyanate group-containing prepolymer and a leather penetrating agent, and pre-curing at 70-90 DEG C to 30%-50% of the isocyanate group reaction degree to obtain a semi-cured primer layer; applying a composite protective film; and aging to obtain a finished product. The transfer film carrier can be reused for more than 50 times, the coating can resist bending for more than 5300 times, and the leather peeling strength reaches 8.5 N / cm, effectively solving the problems of high cost and easy cracking and degumming of the existing transfer film.

The invention discloses a colored UV viscosity-reducing adhesive tape for a semiconductor manufacturing process and a preparation method of the colored UV viscosity-reducing adhesive tape. The viscosity-reducing adhesive tape comprises a transparent base film layer, a bottom coating, a UV viscosity-reducing adhesive layer and a release film layer, the bottom coating layer is prepared by coating and drying a water-based bottom coating agent; the UV viscosity-reducing glue layer is prepared by coating and drying UV viscosity-reducing glue; the preparation raw materials of the UV viscosity-reducing glue comprise the following components in parts by weight: 100 parts of acrylate pressure-sensitive adhesive, 70-80 parts of high-functionality acrylic acid modified polyurethane, 2-4 parts of liquid coloring agent, 0.5-2 parts of curing agent, 2-5 parts of photoinitiator and 20-80 parts of solvent. The UV visbreaking adhesive tape has large 180-degree stripping force before UV illumination and small 180-degree stripping force after UV illumination, the problem that the adhesive tape is difficult to identify by automatic equipment in the semiconductor manufacturing process can be solved, and the UV visbreaking adhesive tape is high in light transmittance and good in UV visbreaking effect.

The utility model relates to an anti-interference secondary injection molding speed regulating handle of an electric vehicle, which comprises a handle sleeve, a Hall seat and a Hall assembly, the handle sleeve rotates relative to the Hall seat, the handle core is further included, a magnetic steel seat is arranged at the end, facing the Hall seat, of the handle core, magnetic steel is arranged on the magnetic steel seat, the handle sleeve is sleeved on the periphery of the handle core, and the Hall assembly is arranged on the Hall seat. One end, facing the magnetic steel seat, of the handlebar sleeve is provided with an arc-shaped disc, the arc-shaped disc covers the periphery of the magnetic steel seat and is matched with the magnetic steel seat and the handlebar core in a limiting manner, the Hall component comprises a PCB (printed circuit board), a Hall element and an anti-interference element, the Hall element and the anti-interference element are arranged on the PCB, and the PCB is inserted into the Hall seat. By adopting the technical scheme, the anti-interference secondary injection molding speed regulating handle for the electric vehicle has the advantages that the handle core is directly subjected to secondary injection molding on the handle sleeve to form a whole, the subsequent manual glue brushing process is omitted, the overall strength of the rotating handle is improved, the handle core and the handle sleeve are not easy to be degummed in high and low temperature environments, and the anti-interference secondary injection molding speed regulating handle is more environment-friendly.

The utility model discloses a door plate handle structure and a door, the door plate handle structure is installed on a door plate, the door plate handle structure comprises a decorative bottom plate, a decorative sheet and a handle, the decorative bottom plate is installed on the door plate, one side of the decorative bottom plate back to the door plate is provided with a first groove, and the decorative sheet is embedded in the first groove; the handle is fixed to the face, back to the door plate, of the decorative bottom plate and tightly presses the decorative piece. The number of the door plates is two, the two door plates are hinged door plates, door plate handle structures are installed at the adjacent ends of the two door plates respectively, and the door plate handle structures on the two door plates are symmetrical to each other. According to the utility model, the decorative property, the practicability and the durability are improved, and the mold opening cost is saved.

The utility model relates to a water seepage prevention door and window structure which comprises a door and window profile, a mounting groove for mounting glass is formed in the door and window profile, a sealing strip is arranged on the side, close to the outdoor space, of the mounting groove, the sealing strip is mounted on the mounting groove through a connecting piece, and a water swelling strip is arranged in the mounting groove. The water swelling strip is connected with the sealing strip through an adhesive layer; the waterproof structure has the advantages that the sealing strip is mounted in the mounting groove through the connecting piece, meanwhile, the water swelling strip can be mounted in the mounting groove, the mounting groove is sealed through the sealing strip in rainy days, and if rainwater permeates into the mounting groove, the water swelling strip absorbs water to swell, so that the rainwater can be prevented from permeating into a room.