367results about How to "Good coating effect" patented technology

The invention discloses a water-based lithium battery positive electrode adhesive, a preparation method and application. The adhesive is of a single-layer or multi-layer shell core-shell structure formed by polar monomers such as acrylic acid, acrylate monomers, cross-linking monomers, self-emulsifying monomers and water through core-shell emulsion polymerization; by controlling the mass percent of acrylate monomers, polar groups and the like in the core layer structure and the shell layer structure and selecting proper types and dosages of cross-linking monomers and self-emulsifying monomers, the adhesive has proper surface tension, shows excellent adhesion and wettability to the current collector, has high peel strength, and is suitable for the current collector. According to the present invention, the lithium ion battery pole piece has the low glass-transition temperature so as to ensure the high toughness, the high surface density, the excellent electrolyte resistance, the excellent electrical property, the excellent coating property and the like of the pole piece, and the raw materials are all non-fluorine materials so as not to produce hydrogen fluoride and other harmful gases during the lithium battery recovery; water is used as a solvent, recycling is not needed, environment friendliness and low carbon are achieved, the manufacturing process is simplified, and the application range is widened.

The invention discloses a bacteria surface modification method based on atom transfer radical polymerization reaction mediation, obtained bacteria and application. The modification method comprises the following steps: carrying out acryloylation on the surfaces of the bacteria by using N-hydroxysuccinimide acrylate, and introducing double bonds on the surfaces of the bacteria to obtain acryloylated bacteria; the method comprises the following steps: by taking acrylamide, N-(3-aminopropyl) methacrylamide hydrochloride and N, N '-methylene bisacrylamide as monomers, carrying out polymerization reaction on the surfaces of acrylated bacteria in the presence of an initiator and a catalyst; the mass ratio of the acrylamide to the N-(3-aminopropyl) methacrylamide hydrochloride to the N, N '-methylene bisacrylamide is (11.9 to 17.5) to (0.125 to 1) to (0.1 to 0.5). According to the method, bacteria can be camouflaged to reduce immunogenicity and pathogenicity of the bacteria, the safety of bacteria treatment is improved under the condition that the viability and multiplication capacity of the bacteria are not affected, the resistance of the bacteria to environmental threats is enhanced, and the bacteria are endowed with no exogenous functions.

The invention discloses a flame retardant with a double-layer microcapsule structure, a flame-retardant polyurethane material as well as a preparation method and application of the flame-retardant polyurethane material, and belongs to the technical field of flame retardants. The material is a multifunctional flame retardant with a double-layer core-shell structure, a shell layer is calixarene boric acid resin, a middle shell layer is melamine phthalic anhydride resin, and a core layer is hydroxyapatite modified aluminum hypophosphite. Due to the high cross-linking degree between polymers, the flame retardance of polyurethane is improved, meanwhile, the mechanical property of the polyurethane is improved, and the flame retardance and seawater corrosion resistance of the material are synergistically enhanced through hydroxyapatite dispersed in the core layer. The double-shell layer has excellent hydrophobicity, prevents internal aluminum hypophosphite from being affected with damp and has anti-fouling and self-cleaning effects, and the prepared flame-retardant polyurethane composite material has excellent tensile and flexible characteristics due to a double network of hydrogen bonds and covalent bonds.

The invention belongs to the technical field of material corrosion prevention, and particularly relates to a high-Si-content cold spraying Al-Mg-Si composite coating and a preparation method thereof. Spherical Al powder, Mg powder, Si powder and Al2O3 ceramic powder are used as raw materials, and the Al-Mg-Si composite coating is prepared on the pretreated base body through cold spraying. When the coating is prepared, the working temperature is low, the coating has the characteristic of solid deposition at low temperature, the heat influence on a matrix is small, oxidation, grain growth and phase change are avoided in the spraying process, and the residual tensile stress is low. The Al2O3 ceramic powder is added, so that the porosity of the coating can be reduced, and the tissue density is increased. And a proper amount of Si element is added, so that the protection effect of the coating is further enhanced, the corrosion rate inhibition capability of the coating is improved, and the mechanical property of the composite material is improved. And heat treatment is carried out at the selected annealing temperature, so that the performance of the coating can be enhanced, and the performance of the matrix is not influenced.

The invention relates to the technical field of solar panel back plate spraying, and discloses photovoltaic solar panel back plate coating equipment which comprises a conveying belt and further comprises a U-shaped frame fixedly installed at the top of the conveying belt; the transverse plate is horizontally and fixedly mounted between the two vertical edges of the U-shaped frame; the number of the spray heads is multiple, the multiple spray heads are linearly and evenly distributed at the bottom of the transverse plate, two spray holes are formed in the tail end of each spray head, and a shell is fixedly installed on the surface of each spray head; the material supply assembly is used for supplying materials to the spray head; and the detecting and cleaning assembly is used for detecting the circulation state of the materials in the spray head. When a photovoltaic solar panel back plate is sprayed, whether a working spraying hole is blocked or not can be automatically detected through the impeller, in addition, the blocked spraying hole can be blocked, the other spraying hole can be started at the same time, the situation that the subsequent spraying quality of the photovoltaic solar panel back plate is reduced during spraying is avoided, and the spraying quality of the photovoltaic solar panel back plate is improved. And the use effect of the equipment is improved.

The invention discloses a coating device for optical lenses, and particularly relates to the technical field of optical lens processing, the coating device comprises a device bottom frame, a coating outer frame is fixedly mounted on one side of the top end of the device bottom frame, an auxiliary outer frame is integrally formed on one side of the coating outer frame, a material placing mechanism is arranged in the middle of the coating outer frame, and an auxiliary mechanism is arranged in the middle of the auxiliary outer frame; the material placing mechanism comprises a mounting top frame, the mounting top frame is fixedly mounted on the inner upper wall of the film coating outer frame, a rotating ring frame is fixedly mounted at the bottom end of the mounting top frame, and a rotating disc is rotationally clamped in the middle of the rotating ring frame. The overall machining efficiency of the optical lenses is improved, the multiple optical lens bodies on the material containing inner frame can be automatically turned over conveniently, the other faces of the optical lens bodies are subjected to film coating machining, and the film coating machining effect and quality of the optical lenses are further improved.

The invention belongs to the technical field of polymer materials, and provides a waterborne polyurethane dispersoid as well as a preparation method and application thereof, the waterborne polyurethane dispersoid is prepared from the following raw materials: polyisocyanate, polybutadiene polyol, a hydrophilic chain extender, an optional micromolecule chain extender and a neutralizer; polybutadiene polyol with a specific structure and molecular weight is adopted as a soft segment, and through component design and mutual compounding, the waterborne polyurethane dispersion has lower polarity and surface energy, has good adaptability with a low-surface-energy substance / low-surface-energy filler, can form excellent dispersion and coating effects on the low-surface-energy substance, and can be used for preparing the waterborne polyurethane dispersion. The slurry performance is improved; meanwhile, the waterborne polyurethane dispersion has excellent solvent resistance, low temperature resistance, hydrolysis resistance and mechanical properties, and has wide application prospects in the fields of battery slurry dispersants, photovoltaic backboard adhesives, conformal coating and the like.

The invention relates to the technical field of phase change materials, and discloses a multifunctional composite phase change material and a preparation method and application thereof. The phase change energy storage microcapsule is prepared from the following raw materials: a core material, a Pickering emulsion template and a wall material, the wall material comprises resin and polypyrrole. The multifunctional composite phase change material is prepared from the phase change energy storage microcapsule, a reinforcing material and a polymer elastomer. The phase change energy storage microcapsule provided by the invention is uniform in size, regular in shape, good in stability and good in coating effect, the surface is doubly coated with the resin and the polypyrrole nanoparticles, the phase change material leakage condition is avoided, and the thermal cycling stability is good; the multifunctional composite phase change material has good photo-thermal conversion capability and conductivity and good thermal cycling stability, can meet the multi-scene application requirements in the fields of intelligent wearing, solar energy conversion and human body near-infrared photo-thermal treatment, and is non-powdery and can be directly used.

The invention relates to the technical field of coating machines, and discloses a multi-drying coating machine which comprises a supporting plate body, a base material roller, a composite drying machine and a discharging roller, the two ends of the supporting plate body are rotationally connected with the base material roller and the discharging roller respectively, the composite drying machine is arranged between the base material roller and the discharging roller, a tension shaft is arranged between the base material roller and the composite drying machine, and the tension shaft is connected with the supporting plate body. A coating mechanism is arranged on one side of the tension shaft and comprises a rotary coating roller, a supporting base and a comma scraper, a coating base material is arranged between the rotary coating roller and the supporting base, the comma scraper is arranged on one side of the rotary coating roller, and ultrasonic vibration modules are arranged on the upper side and the lower side of the comma scraper; the ultrasonic vibration module changes an electromagnetic field around the comma scraper to enable the surface of the comma scraper to generate high-frequency vibration; the high-frequency vibration of the comma scraper not only optimizes the distribution of the coating, but also enhances the interaction between the coating and the base material, and effectively promotes the contact and permeation between coating molecules and the coating base material.

The utility model relates to the technical field of chemical vapor deposition, in particular to a chemical vapor deposition equipment moving support which comprises a base and two sets of opposite supporting frames installed on the base, each supporting frame comprises two supporting rods which are oppositely and fixedly connected to one side of the base, and the opposite faces of the two sets of supporting frames are provided with placing plates; a containing plate is arranged on the base, a loading tray is placed on the containing plate, a connecting support for connecting the two sets of supporting frames together is arranged at the top ends of the supporting frames, an ultrasonic vibration instrument with the output end connected with the supporting frames is arranged on one side of the base, a substrate to be coated is placed on the loading tray, and then the base is installed in a bin body of chemical vapor deposition equipment. Then, the ultrasonic vibration instrument is intermittently started, so that in the coating process, the vibrated to-be-coated film moves up and down, the bottom surface of the to-be-coated substrate can also be in contact with sediments in a solution, and the to-be-coated substrate can be coated without turning over the bottom surface of the to-be-coated substrate; therefore, the purpose of improving the coating efficiency of the chemical vapor deposition equipment is achieved.

The invention relates to a lanthanide perovskite type oxide coated high-nickel ternary positive electrode material and a preparation method thereof. The positive electrode material is spherical-like particles formed by coating a high-nickel ternary positive electrode material with a lanthanide perovskite type oxide coating layer according to a mass ratio of (0.01-0.03): 1; the chemical formula of the lanthanide perovskite type oxide is LazCa1-zCoO3, and z is more than 0 and less than or equal to 1; the chemical formula of the high-nickel ternary positive electrode material is LiNixCoyMn (1-x-y) O2, x is greater than or equal to 0.80 and less than or equal to 0.96, y is greater than or equal to 0.01 and less than or equal to 0.10, and 1-x-y is greater than 0. The preparation method comprises the following steps: ball-milling and mixing the lanthanide perovskite type oxide and the high-nickel ternary positive electrode material, and sintering at low temperature in a protective atmosphere. The positive electrode material is high in lithium ion and electron conductivity in the charging and discharging process, high in reversibility, stable in structure and good in rate capability and cycling stability. The method is simple, low in cost and suitable for industrial production.

The present invention provides a kind of spherical gold powder and preparation method thereof, relate to the technical field of precious metal powder preparation, the preparation method uses aqua regia to prepare chloroauric acid solution, and uses concentrated hydrochloric acid to adjust pH to 1.5-2, then adds ammonia water to adjust pH to 7-9, stirs 20-60s, then adds concentrated hydrochloric acid to adjust pH to 1.2-2 again, obtains mixed solution B;Then, the first dispersant solution is poured into the aforementioned mixed solution B, after stirring evenly, the mixed solution A of the second dispersant and the reducing agent is quickly added, after stirring reaction, sedimentation, post-treatment, obtains spherical gold powder. Wherein, spherical gold powder of different sizes with a particle size within the range of 0.3-4 μm can be prepared by adjusting pH twice, and adding two different dispersants in a specific order of addition can make the prepared spherical gold powder uniform in particle size, good in dispersibility, regular in shape and smooth in surface. The preparation method reacts rapidly, the process is short and stable, and it has been stably expanded to 500g, which can realize large-scale industrial production.

The invention provides a sodium battery core-shell type hard and soft interwoven carbon layer coated metal oxide negative electrode material, which is prepared from the following raw materials: an asphalt material, a hard carbon precursor, a metal oxide precursor and template salt, and the mass ratio of the asphalt material to the hard carbon precursor to the metal oxide precursor to the template salt is 1: (0.5-2): (1-2): 4; the core-shell type negative electrode material comprises a metal oxide and a hard-soft interwoven carbon layer coated on the surface of the metal oxide. On the other hand, the invention also provides a preparation method of the core-shell type hard-soft interwoven carbon layer coated metal oxide negative electrode material for the sodium battery, namely a one-step pyrolysis method. The problems that in the prior art, the defect that a metal oxide negative electrode is prone to pulverization or poor in conductivity can only be singly improved, and meanwhile, the formula is complex, the cost is high or the environment is polluted are solved, the defects that the electrode is prone to pulverization and poor in conductivity are synchronously improved, and the service life of the electrode is prolonged. And the performance of the electrode is improved to the maximum extent.

The invention relates to a lithium nickel manganese oxide coated high-nickel ternary positive electrode material and a preparation method thereof. The positive electrode material is spherical particles formed by coating a high-nickel ternary positive electrode material with a spinel type lithium nickel manganese oxide coating layer according to a mass ratio of (0.005-0.040): 1, the chemical formula of the high-nickel ternary positive electrode material is LiNixCoyMn (1-x-y) O2, x is larger than or equal to 0.75 and smaller than or equal to 0.90, y is larger than or equal to 0.05 and smaller than or equal to 0.15, and 1-x-y is larger than 0. The preparation method comprises the following steps: (1) adding a high-nickel ternary positive electrode material into an organic solution containing nickel, manganese and lithium, and stirring and mixing; (2) dropwise adding a precipitant organic solution, stirring for reaction, heating and stirring until evaporation to dryness, and grinding; and (3) sintering and cooling in an oxidizing atmosphere. The positive electrode material disclosed by the invention is highly reversible in charge-discharge reaction, stable in structure and good in rate capability and cycling stability. The method is simple, short in process, good in coating effect, low in cost and suitable for industrial production.

The invention discloses a composite wall material of a microcapsule, the microcapsule using the composite wall material and a preparation method of the microcapsule, and relates to the technical field of daily chemical products. The wall material of the microcapsule comprises polysiloxane, an epoxy-polyamine polymer and polyamide-amine, and the polysiloxane, the epoxy-polyamine polymer and the polyamide-amine are in covalent linkage. The essence microcapsule prepared from the composite wall material of the microcapsule has excellent friction aroma release performance and excellent stability.

The invention relates to the technical field of leather processing, in particular to a leather forming processing device for automotive trim. The device comprises a pretreatment device and a mold device, the rear side of the mold device is connected and provided with a trimming device, the front side of the mold device is connected and provided with a heating device, and the mold device is internally provided and connected with a cooling device. The pretreatment device is used for improving the quality and the processing efficiency of leather, improving the consistency of products and effectively shortening the production cycle, the mold device is used for forming the leather, ensuring the size accuracy and effectively improving the consistency of the products, and the heating device is used for softening the leather, facilitating subsequent processing, improving the process effect and effectively improving the quality of the products. The cooling device is used for rapidly cooling leather, stabilizing the size and effectively improving the product precision, the trimming device is used for finely adjusting the leather and improving the finished product quality, and the safety monitoring device is used for guaranteeing the safety of the machining process and effectively improving the operation safety.

The invention discloses a preparation method of a metal oxide coated high-nickel ternary positive electrode material, which comprises the following steps of: dissolving a solution containing coated metal in an organic solvent under a stirring condition to obtain a solution containing metal oxide; adding the high-nickel ternary material powder into an organic solvent under ultrasonic operation to obtain a solution of the high-nickel ternary positive electrode material powder; dropwise adding the solution containing the metal oxide into the solution of the high-nickel ternary positive electrode material powder under ultrasonic operation to obtain a mixed solution; heating the mixed solution under a magnetic stirring condition to volatilize the solvent, collecting the material, and drying in a vacuum drying oven; and calcining the dried material in pure oxygen to obtain the metal oxide coated high-nickel ternary positive electrode material. The electrochemical performance of the high-nickel ternary positive electrode material at low temperature can be effectively improved, specifically, the surface of the positive electrode is regulated and controlled, the contact area of the surface of the ternary positive electrode material and electrolyte at low temperature is reduced, so that side reaction is reduced, and meanwhile, the coating layer with certain mechanical strength can be formed in the long-term cycle process at low temperature, so that the electrochemical performance of the high-nickel ternary positive electrode material is improved. Positive electrode breakage is effectively reduced, and the cycling stability of the high-nickel ternary positive electrode at low temperature is effectively improved.

The utility model discloses an elastic nylon fabric which comprises a fabric layer, the fabric layer is formed by interweaving warp yarns and weft yarns in a plain weave mode, the warp yarns are of a ZS double wrap yarn structure formed by wrapping spandex with low-denier nylon, the twisting mode is that Z twisting and S twisting are conducted at the same time, and the twisting degree ranges from 1800 twists to 2000 twists. According to the elastic nylon fabric, a ZS double-wrapping structure is adopted in the warp direction of the elastic nylon fabric, the overall tension of wrapping yarn is ensured, and the elasticity and stability of the fabric are improved. Meanwhile, by adjusting the density in the warp direction and the weft direction, the fabric not only has an excellent cool feeling effect, but also has good anti-ultraviolet performance, and the air permeability is optimized.

The utility model relates to a deviation rectifying structure of a PET (Polyethylene Terephthalate) base film coating machine. The deviation rectifying structure comprises a vertical plate, the angle deviation rectifying mechanism comprises an unwinding plate fixed to one side of the vertical plate, an unwinding frame arranged on one side of the unwinding plate in an angle-adjustable mode and an unwinding barrel rotationally installed in the unwinding frame, and the unwinding barrel is sleeved with a base film to be unwound; and the position deviation rectifying mechanism comprises a bottom plate, a deviation rectifying plate movably arranged at the top of the bottom plate, fixing plates fixed to the top of the deviation rectifying plate at intervals, an upper deviation rectifying roller and a lower deviation rectifying roller, wherein the upper deviation rectifying roller and the lower deviation rectifying roller are rotationally installed between the fixing plates and used for clamping a base film. According to the deviation rectifying structure of the PET base film coating machine, the angle deviation rectifying mechanism is arranged to rectify the angle of the base film, and the position deviation rectifying mechanism is arranged to rectify the position of the base film, so that the left and right positions of the base film are prevented from deviating when the base film is unwound, the conveying efficiency of the base film is improved, and the coating effect of the base film is also improved.

The invention discloses an efficient automatic film laminating mechanism of a double-sided film laminating machine, and relates to the technical field of film laminating machines, the efficient automatic film laminating mechanism of the double-sided film laminating machine comprises a conveying piece, first mounting plates, a rotating shaft, a counterweight mechanism, a film laminating roller, a tensioning mechanism, a third mounting plate, a preheating mechanism, a cooling mechanism and a cutting piece, rotating shafts are rotatably connected in the first mounting plate, the outer walls of the rotating shafts are rotatably connected with counterweight mechanisms, the two rotating shafts are internally and fixedly connected with a film laminating roller, the counterweight mechanisms are arranged, and counterweight blocks are placed to increase counterweights and detect the weight of the counterweights, so that the film laminating roller always keeps stable dynamic balance; the non-uniform force borne by the film is reduced, the possibility of film damage is reduced, the completeness of the film is improved, the film is prevented from wrinkling or being locally not tightly attached, the film is perfectly attached to the plastic surface, and meanwhile, the extra load brought to the driving motor by the unbalanced film laminating roller is reduced.

The invention discloses a feeding structure for a glass film laminating machine, and relates to the technical field of film laminating equipment feeding, the feeding structure comprises a mounting frame, a glass main body and supporting legs fixedly mounted on the periphery of the bottom of the mounting frame, one side of the top of the mounting frame is fixedly connected with a mounting seat, and fixing plates are symmetrically fixed to the top of the mounting frame; the fixing plates are located on one side of the mounting base, the inner sides of the two fixing plates are rotationally connected with a film laminating roller, placing assemblies are symmetrically arranged on the other side of the top of the mounting frame, the placing assemblies comprise mounting plates which are symmetrically arranged, and cleaning assemblies are arranged on the inner sides of the mounting plates; the placing assembly further comprises a rotating shaft and a gear, the rotating shaft is rotationally connected with the mounting frame, and the problems that dust and other impurities on the surface of the glass possibly affect the flatness and attractiveness of a follow-up film, and the processing effect of the film and the quality of a finished product are reduced are solved.

The invention discloses vacuum coating equipment and a coating process, and particularly relates to the technical field of coating, the vacuum coating equipment comprises a coating cavity, a first closing door and a second closing door are rotatably mounted on the two sides of the front end of the coating cavity through hinges respectively, and avoiding areas are arranged in the first closing door and the second closing door. Active sealing of the coating cavity is completed through the isolation layer, the vacuum breaking condition in the coating cavity is avoided, the coating efficiency is improved, meanwhile, contact with the external environment is reduced, the probability that the appearance of a product is affected by falling dust, impurities or other pollutants in the environment is reduced, meanwhile, the vacuum mechanism can be actively switched to the deposition area and the avoiding area, and the production efficiency is improved. The vacuum treatment of the two areas is completed, the vacuum state in the deposition area and the vacuum state in the avoiding area are kept, the problem of vacuum breaking cannot occur when the isolation layer carries the two circulating mechanisms to rotate, vacuum recovery does not need to be repeatedly completed for the whole coating cavity, the coating steps are optimized, and the yield is increased.

The utility model discloses a ferrite base material surface film covering device which comprises a workbench, one end of the workbench is fixedly connected with a clamping assembly, one side of the workbench is fixedly connected with a movable frame, a sliding groove is formed in the top of the movable frame, a movable motor is arranged at one end of the top of the movable frame, and one side of the movable motor is fixedly connected with a rotating screw rod. And the rotating screw rod is rotationally mounted in the sliding groove, and a film covering device is slidably mounted on the outer surface of the sliding groove. According to the scheme, the ferrite base material is coated with the film roll, the film roll is attached to the surface of the ferrite base material through pressing of the pressing block, and then ferrite and the film roll are attached more evenly, so that bubbles are reduced, the film coating effect of the ferrite base material is improved, the dust collection nozzle is used for removing dust on the to-be-coated part of the ferrite base material, and the film coating efficiency is improved. Bubbles caused by dust on the surface of the ferrite base material are avoided, and damage to the surface of the ferrite base material due to the fact that the pressing block presses the dust is also avoided.

The invention discloses cable processing and coating equipment which comprises a base, an extrusion box, a containing cylinder and a vertical plate are arranged at the top of the base, a guide assembly is arranged on the side, opposite to a connecting cylinder, of a limiting cylinder, and an arc-shaped groove is spirally formed in the circumferential outer wall of the containing cylinder in the length direction of the containing cylinder; an air bag is symmetrically arranged in the containing cylinder, a connecting rod with a limiting head is arranged between the vertical plate and the arc-shaped groove, an electric cylinder is fixedly installed on the side, opposite to the containing cylinder, of the vertical plate, the air bag is communicated with the inflator pump through a hose, a piston plate is arranged in the inflator pump, and a piston rod is arranged in the piston plate. And a piston rod is arranged between the piston plate and the movable end of the electric rod. According to the cable processing and coating equipment, the contact area between the equipment and the surface of the cable is increased, the attaching tightness of an insulating layer and the outer wall of the cable is improved, the coating effect of the insulating layer on the outer wall of the cable is improved, the abrasion of the surface of the cable is reduced, and the product quality is improved.

The invention relates to the technical field of cable processing, in particular to a cable surface color strip coating device which comprises a rack, a guide assembly, a first coating mechanism and a second coating mechanism. And after the cable sequentially passes through the guide assembly, the first coating mechanism and the second coating mechanism, the advancing path of the cable is changed by the reversing wheel. When the cable passes through the guide assembly, the guide assembly not only can limit the advancing direction of the cable, adjust the tension degree of the cable and stably convey the cable to the first coating mechanism, but also can increase the roughness of the outer surface of a coating layer of the cable. By increasing the roughness of the outer surface of the coating layer, coloring of the outer surface of the coating layer is facilitated. When the cable passes through the first coating mechanism, the first coating mechanism can pre-coat the outer surface of the coating layer. And when the cable passes through the second coating mechanism, the second coating mechanism can re-coat the outer surface of the coating layer. Through primary coating and secondary coating, the coating effect of the color bar can be effectively improved.

The utility model relates to the field of medical equipment, and discloses an operating bed which comprises a head plate, a main plate, a leg plate, a headrest, a foot pad, a first moving device and a second moving device. The head plate and the leg plate are arranged on the two sides of the main plate in the longitudinal direction respectively. The two leg plates are symmetrically arranged by taking the longitudinal axis of the main plate as a symmetric line; the headrest comprises a headrest body and a shoulder support, and an air bag is arranged in the shoulder support; the foot pad is arranged corresponding to the leg plate; the first moving device is used for connecting the head plate and the headrest to move the headrest; the second moving devices are used for connecting the corresponding leg plates and foot pads; according to the utility model, the air bag is arranged in the shoulder rest of the headrest, so that the softness of the shoulder rest can be adjusted according to the internal pressure after inflation, and better support is provided for the shoulders of a patient; the two leg plates can be folded or unfolded, the corresponding foot pads can provide limiting support for the feet of the patient under the inclined condition that the head is high and the feet are low, and the patient is prevented from sliding down.

The invention discloses folding cover plate glass, which comprises a folding cover plate glass main body, the upper surface and the lower surface of the folding cover plate glass main body are respectively a half-broken etching surface and an unetched glass surface, the half-broken etching surface is etched with a groove in a bending area of the folding cover plate glass main body, and the distance between the bottommost part of the groove and the unetched glass surface is 10-100 [mu] m. According to the invention, the half-breaking etching process is adopted in the bending area of the cover plate glass with the thickness of more than 0.1 mm to form the groove with a specific shape, so that the glass cover plate can have excellent bending performance while the hardness and the strength of the cover plate glass are ensured, and the problem that the bending area of the folding cover plate glass is fragile when being impacted by external force is solved.

The invention relates to the technical field of metal piece treatment, in particular to Dacromet coating passivation equipment and a control method thereof, and the Dacromet coating passivation equipment is characterized in that a passivation cylinder comprises a dip-coating cavity, a transition cavity and a storage cavity; the mesh box is mounted above the passivation cylinder through a driving assembly so as to drive the passivation cylinder to move and adjust vertically, and the driving assembly further comprises a rotating mechanism for driving the passivation cylinder to rotate; the solution surging assembly is mounted in the passivation cylinder and is used for driving the Dacromet liquid to slowly surge along a track from the storage cavity to the dip-coating cavity and then to the transition cavity so as to form flowing replacement of the Dacromet liquid; according to the device, through the arrangement of the solution surging assembly, the Dacromet liquid in the dip-coating cavity forms slow surging under the condition that the amount is kept unchanged, so that the Dacromet liquid forms dynamic flowing, and the coating effect on a workpiece is improved.

The invention relates to the technical field of road materials, in particular to a preparation method of high-elasticity rubber powder composite modified cold-mixed asphalt. The preparation method comprises the following steps: mixing matrix asphalt, high-elasticity rubber powder, an SBS (Styrene Butadiene Styrene) modifier, a cross-linking agent, an activating agent and polyurethane microcapsules; wherein the polyurethane microcapsule takes polyurethane as a shell layer and an asphalt regenerant as a core material, and when the shell layer is prepared, chitosan, sodium lignin sulfonate, acrylamide, trifluoroethyl acrylate and acrylic acid react to obtain composite powder; the prepared cold-mixed asphalt mixture can be mixed and paved at normal temperature / low temperature, and after paving, the high-elasticity rubber powder and the matrix asphalt are fully swelled to form a modified asphalt cementing material, so that the high-temperature stability of the cold-mixed asphalt mixture is enhanced, and the strength of a cold-mixed asphalt pavement is improved. In addition, the cold-mix asphalt waterproof coating has good self-healing performance at the room temperature, and the requirement for timely traffic of a cold-mix asphalt road is met.

The utility model provides film covering and cutting integrated equipment, which relates to the technical field of film covering and cutting machines and comprises a fixing plate, a conveying belt is mounted on the inner side of the fixing plate, a dust collection mechanism is arranged on one side above the fixing plate, cutting knives are mounted below two sides in a film covering cavity, and a film covering cavity is formed in the fixing plate. A cutting assembly is installed on the other side of the upper portion of the fixing plate, a cutting plate is installed in the conveying belt on the inner side of the fixing plate, and the cutting assembly corresponds to the cutting plate in position. By arranging the adjusting mechanism and utilizing mutual cooperation of a mounting plate, a mounting cavity, a servo motor, a threaded rod, a threaded sleeve, a movable cavity, an adjusting roller, a limiting groove and a limiting block of the adjusting mechanism, the adjusting roller can be driven to move, then the adjusting roller is used for driving a film to move, and the tension degree of the film is adjusted; and the film laminating effect of the film is better, so that the product processing effect is better, and the practicability of the equipment in use is greatly improved.