74 results about "Sheet film" patented technology

The application relates to an automatic production device and method of a gusset bag, and relates to the technical field of a packaging bag production device, and comprises a bag body forming device, the bag body forming device comprises four groups of discharging mechanisms arranged above, below, left and right, which are used for releasing sheet films and surrounding four sides of the bag body; a gusset sheet mounting device is arranged at a discharging end of the bag body forming device, is used for conveying the gusset sheet between two adjacent sheet films, and pre-fixes the gusset sheet and the sheet film; a hot wire edge sealing device is arranged at a discharging end of the gusset sheet mounting device, comprises multiple groups of heating mechanisms, and performs heat sealing on the pre-fixed position of the gusset sheet and the sheet film; and a fixed-length cutting device is arranged at a discharging end of the hot wire edge sealing device, comprises a cutter assembly that can be lifted up and down, and is used for fixed-length cutting of continuous sheet films. The application can reduce manual participation, improve the production quality and efficiency of products, the products can be continuously produced, and the consistency is higher.

The utility model discloses a tinned thin plate film coating device, and relates to the technical field of film coating devices, in particular to a tinned thin plate film coating device which comprises a bottom plate, a supporting block is fixedly connected to the upper portion of the bottom plate, one end of the supporting block is rotationally connected with an unwinding disc, and a film disc supporting arm is fixedly connected to the middle of the bottom plate. According to the tin-plated thin plate film coating device, the cooling box and the guide rod are arranged in a matched mode, in the using process, in the winding control process of the second motor, a thin plate subjected to film coating can be supported by the guide rod, and the thin plate subjected to film coating can be suspended in the cooling box to be cooled; according to the thin plate film laminating device, the thin plate is cooled, so that damage caused by contact with the box body is avoided while the thin plate is shrunk, the thin plate subjected to film laminating can be cooled, the thin plate is shrunk and tightly attached, and the purpose of improving the thin plate film laminating quality is achieved.

The utility model relates to the technical field of steel wire rope lubrication, in particular to a steel wire rope lubricating device. A steel wire rope lubricating device comprises a lower lubricating sleeve, the lower lubricating sleeve is hinged to an upper lubricating sleeve, leaking plates are arranged in the lower lubricating sleeve and the upper lubricating sleeve, leaking holes distributed at equal intervals are formed in each leaking plate, oil feeding cavities are formed between the lower lubricating sleeve and the leaking plate in the lower lubricating sleeve and between the upper lubricating sleeve and the leaking plate in the upper lubricating sleeve, and a baffle ring is arranged in each oil feeding cavity. The baffle rings divide the oil feeding cavity into an inner cavity and an outer cavity, and hard thin films distributed at equal intervals are arranged on each baffle ring. According to the utility model, through the baffle rings and the hard film arranged in the lower lubricating sleeve and the upper lubricating sleeve, when oil supply is stopped, the hard film is in a closed state without pressure, so that the condition that the oil supply pipe is blocked due to backflow of lubricating oil in contact with a steel wire rope is prevented.

The utility model relates to the field of metering and feeding equipment discloses a PC board piece film raw material precision metering and feeding equipment, including the box, two supports are fixedly connected in the box, two the middle fixedly connected with the distribution shell of support, the distribution shell top is equipped with the feed inlet, the distribution shell is provided with the distribution tray inside, the distribution tray upper and lower ends are equipped with the distribution bin, the distribution tray is provided with the abutment inside, the abutment is connected with the lifting plate through the lifting assembly, the box top fixedly connected with the butt joint, the butt joint top is equipped with the butt joint hole, the butt joint hole is provided with the limit rod inside, the limit rod side is equipped with the limit hole, in the utility model, through the distribution bin volume ration, double motor drives distribution tray conveying and adjusting volume respectively, ensures that distribution is accurate and flexible, through the linkage of the shift lever, spring and other components, realizes the quick loading and unloading of the hopper, is convenient for cleaning replacement, guarantees raw material clean, promotes the operating convenience.

The application discloses a kind of heat insulation sheet film pasting film sending film devices, including by the horizontal support plate of external support fixed support, the top of the horizontal support plate is equipped with the L-shaped air duct driven to reciprocate, the end of the L-shaped air duct is fixedly connected with the adsorption head that blue film is adsorbed by being pressed down, the top of the horizontal support plate is equipped with the cutting knife that blue film is cut, the end of the horizontal support plate is fixedly connected with vertical support plate, the surface of the vertical support plate is fixedly connected with the release roller that blue film in winding state is released by rotation and the material receiving roller that the release film on blue film is actively wound and stored.The application, by the horizontal support plate is supported and fixed by external support, the horizontal support plate plays a supporting role to the transport of blue film, L-shaped air duct drives the continuous movement of horizontal support plate;Adsorption head realizes the adsorption transfer of blue film after cutting on the horizontal support plate when continuously moving along with L-shaped air duct, realizes film sending operation.

The application provides a dry-process electrode tab film and a preparation method thereof, and belongs to the technical field of dry-process electrode manufacturing. The dry-process electrode tab film comprises active material particles, conductive agent particles and an adhesive, the adhesive is in a fibrous form, the active material particles comprise large-diameter active material particles and small-diameter active material particles, wherein the particle size D50 of the large-diameter active material particles is 4-10 mu m, the particle size D50 of the small-diameter active material particles is 0.9-1.8 mu m, and the small-diameter active material particles are arranged in an area close to and adhered to the adhesive along the extension direction of the adhesive. The dry-process electrode tab film can have good film-forming property and high compaction density.

The utility model relates to an online rolling and slitting integrated unit for multiple groups of gilding machines, and belongs to the technical field of gilding equipment. Comprising a rack, an unwinding shaft, a gold stamping unit, a slitting unit and a winding unit are sequentially arranged on the rack, a sheet film barrel is arranged on the unwinding shaft, and a sheet film is unwound through the unwinding barrel; the gold stamping unit carries out gold stamping on different positions of the sheet film to form a multi-splicing film; the slitting unit is used for slitting the sheet film to form a plurality of slitting films; the winding unit comprises a winding shaft, a plurality of sub-winding drums are arranged on the winding shaft, and the slitting films are wound on the corresponding sub-winding drums respectively. The slitting unit comprises two slitting side plates which are symmetrically arranged, a slitting fixing shaft is erected between the two slitting side plates, a plurality of slitting bases are arranged on the slitting fixing shaft, and slitting knives are arranged on the slitting bases respectively. The multi-splicing gold stamping, slitting and rolling device is convenient to operate, multi-splicing gold stamping, slitting and rolling are completed at a time, the secondary slitting and back rolling procedures of materials are avoided, and the working efficiency is improved.

The utility model relates to the technical field of biological detection sealing film packaging, in particular to a sheet film moving assembly used for moving a sheet film extracting assembly. The sheet film moving assembly comprises a transverse moving part and a longitudinal moving part; the transverse moving part drives the sheet film extracting assembly to transversely move in a rotating mode, and the longitudinal moving part drives the sheet film extracting assembly to longitudinally move in a longitudinal transmission mode. And the sheet film can be replaced only by opening the sheet film inlet and outlet, so that the structure is more convenient.

The invention relates to a functional high-strength polyethylene film material continuous forming method which comprises the following steps: S1, mixing a photosensitizer and a grafting monomer to prepare a turbid liquid, spraying the turbid liquid into polyethylene, and stirring and dispersing to obtain a composite material; s2, adding the composite material in the S1 into a screw extruder for extrusion to obtain a thick film material, and then performing continuous isobaric pressing to obtain a thin film material; and S3, carrying out multi-time hot drafting on the thin film material in the S2 to obtain a film material product, carrying out ultraviolet radiation in an inert atmosphere, and rolling to obtain the functionalized high-strength polyethylene film material. Compared with the prior art, continuous forming of the high-strength UHMWPE film material can be achieved at low temperature, the preparation process does not need a solvent and is environmentally friendly, the surface of a product has polarity, and the interface bonding force is high when the composite material product is manufactured.

The invention discloses a film covering method for a heat-conducting graphene cooling fin, and relates to the technical field of cooling fin film covering, the method comprises the following steps: S1, preparing a graphene cooling fin substrate; s2, performing plasma treatment on the graphene cooling fin substrate, and forming a pit-shaped microstructure on the surface of the graphene cooling fin substrate; wherein the plasma treatment comprises plasma cleaning and plasma bombardment; and S3, performing vacuum coating treatment on the surface of the graphene cooling fin substrate subjected to plasma treatment to obtain the heat-conducting graphene cooling fin with the insulating layer. Through the synergistic effect of plasma cleaning and plasma bombardment in the step S2, a pit-shaped microstructure is formed on the surface of the graphene cooling fin substrate, and uniform deposition and mechanical embedding of an insulating layer in vacuum coating in the subsequent step S3 are facilitated, so that the adhesion firmness of the insulating layer is enhanced. Therefore, the technical problem that in the prior art, the adhesive force of a covering film of a heat conduction graphene cooling fin is insufficient is solved.

The invention discloses a printed sheet laminating method which comprises the following steps: arranging an image-text layer and a hot melt adhesive layer which are laminated on the surface of a base material layer in an online manner; an adhesive film layer is arranged on the surface of the hot melt adhesive layer; and heating and pressing are performed, so that the hot melt adhesive layer and the adhesive film layer are compounded together. According to the printed sheet laminating method, the image-text layer and the hot melt adhesive layer are arranged by the printing machine in an online manner, so that the influence of the hot melt adhesive layer on the color of the printed sheet is preposed, and the subsequent laminating operation basically does not influence the printing color. Therefore, an operator of a printing machine table can directly adopt the laminating sample provided by a client to check the printing color, and the risk that the color of a printed sheet and the color of the laminating sample of the client are within the allowable error range during printing but the color of the printed sheet and the color of the laminating sample of the client exceed the allowable error range after laminating is greatly reduced.

The invention relates to the technical field of preparation of anti-counterfeiting films, and discloses a preparation method of a polarized anti-counterfeiting two-way stretch film and an anti-counterfeiting film, the preparation method comprises the following steps: (1) after a polymer material is melted and flows out, cooling to form a casting sheet film; (2) the casting piece film is longitudinally stretched, specifically, the casting piece film sequentially passes through a plurality of hot rollers and a plurality of cold rollers, characteristic patterns are arranged on the surface of the last hot roller, and the casting piece film is processed through the last hot roller to form the characteristic patterns; (3) carrying out transverse stretching; and (4) finally, carrying out heat setting and post-treatment to prepare the anti-counterfeiting film. According to the method, when the surface of the last hot roller which is longitudinally stretched is treated, characteristic patterns are formed in a casting piece film, so that local stretching is not uniform, the orientation degrees of molecules in the film at different positions are different, the larger the difference of the orientation degrees of the internal molecules is, the more obvious the effect of filtering or twisting light is, and the more obvious the effect of filtering or twisting light is. And the anti-counterfeiting effect is better.

The present invention relates to a process for preparing a three-dimensional logo that is healthy, environmentally friendly, has good adhesion and high preparation efficiency, and comprises the following steps: spraying a logo pattern on the upper surface of a TPU film; applying glue on the lower surface of the TPU film and attaching a base film; cutting along the edge of the logo pattern of the product in step 2 by laser cutting to separate a single logo pattern on the TPU film to form a logo surface film layer, and cutting the TPU film and the base film together into equidistant sheet film plates; tearing off the logo surface film layer on the sheet film plate and attaching it to the bottom surface of a mold cavity of an injection mold; injection molding an injection molded body in the mold cavity of the injection mold, and fixing the logo surface film layer to the surface of the injection molded body; applying hot melt glue to the bottom surface of the injection molded body by a glue applying device and drying it, so that a layer of hot melt glue layer is attached to the bottom surface of the injection molded body; heating the hot melt glue layer on the injection molded body by a heating device to form a molten state, and then attaching it to the fabric.

The present application relates to a kind of porous dry method electrode preparation methods, active material, powder binder and powder pore-forming agent are added in mixer, after being mixed uniformly, the powder mixture with uniform particle size distribution is obtained by pulverizer, high shear is provided by twin-screw extruder or open mill, powder binder is fiberized so that sheet forming is formed, further by rolling, the electrode sheet film with target compactness and thickness is formed, finally by heating and drying or solution infiltration treatment to the electrode containing electrode sheet film, porous electrode is obtained.The porous dry method electrode preparation method is simple and easy to operate, and the manufacturing cost is low, suitable for industrialized production application.

The utility model relates to the technical field of polymer filtering membrane preparation, and discloses membrane preparation equipment which comprises a batching device, a feeding device, an unwinding device, a membrane coating device, a curing device, a cleaning device, a first winding device and a second winding device, the batching device is used for preparing film coating liquid; the feeding device is used for conveying the film coating liquid; the unwinding device is used for unwinding a base film; the film coating device is used for coating a base film with film coating liquid; the curing device is used for curing the film coating liquid coated on the base film to form a flat sheet film; the cleaning device is used for cleaning the flat sheet membrane; the first winding device is used for winding the base film; the second winding device is used for winding the flat sheet membrane; according to the film making equipment provided by the utility model, through the cooperation of the batching device, the feeding device, the unwinding device, the film coating device, the curing device, the cleaning device, the first winding device and the second winding device, the improvement of the accuracy of scientific research experiment data can be facilitated, the film making time can be shortened, and the production efficiency can be improved.

The utility model relates to a locally reinforced insulating film which wraps the outer side surface of a pole core of a lithium ion battery and comprises a film main body, the film main body is of a sheet-shaped film structure, at least one strip-shaped reinforcing sheet is arranged on the surface of the film main body, and the strip-shaped reinforcing sheet extends along the length direction of the film main body; the utility model also relates to a lithium ion battery which comprises a shell, a shell cover, a pole core and a locally reinforced insulating film, and the insulating film is wrapped on the outer surface of the pole core; an opening is formed in the end of the shell in the length direction, the pole core wrapped with the insulating film is inserted into the containing cavity of the shell through the opening, and the shell cover is installed on the opening in a sealed mode. The rigidity of the pole core is locally enhanced by the long-strip reinforcing sheet of the insulating film, the pole core is conveniently arranged in the shell after being locally enhanced, and the insulating film is not easily scraped by an opening of the shell.

The utility model discloses a rotary mixing device of a simple bag type on-site foaming packaging bag, which relates to the technical field of foaming packaging bag preparation, and comprises a mixing pad, a mounting seat, a transmission motor, a transmission shaft, a mixing inner shaft and a mixing outer rod, and the transmission motor is fixedly arranged on the outer wall of the mounting seat and is fixedly connected with the transmission shaft; the transmission shaft penetrates out of the mounting base and is fixedly connected with the mixing inner shaft, the mixing inner shaft is sleeved with the mixing outer rod, and a sheet film bag is arranged between the mixing outer rod and the mixing pad in a contact mode. According to the utility model, the sheet film bag is arranged between the mixing outer rod and the mixing pad, and raw materials in the film bag are extruded by driving the mixing outer rod to rotate so as to be quickly and uniformly mixed, so that the mixing effect is improved while operating parts of the device are reduced.

The application discloses a film coating method of heat-conducting graphene heat-dissipating sheet, relates to the technical field of heat-dissipating sheet film coating, and comprises the following steps: S1, preparing a graphene heat-dissipating sheet base; S2, performing plasma treatment on the graphene heat-dissipating sheet base to form a pit-shaped microstructure on the surface of the graphene heat-dissipating sheet base; wherein the plasma treatment comprises plasma cleaning and plasma bombardment; and S3, performing vacuum coating treatment on the surface of the graphene heat-dissipating sheet base after the plasma treatment to obtain a heat-conducting graphene heat-dissipating sheet with an insulating layer. Through the synergistic effect of the plasma cleaning and the plasma bombardment in step S2, the pit-shaped microstructure is formed on the surface of the graphene heat-dissipating sheet base, which is beneficial to the uniform deposition and mechanical embedding of the insulating layer in the vacuum coating in subsequent step S3, so that the adhesion of the insulating layer is enhanced. Therefore, the application solves the technical problem of insufficient film coating adhesion of the heat-conducting graphene heat-dissipating sheet in the prior art.

The utility model discloses a sheet film feeding device for a laser cutting machine, and belongs to the technical field of sheet film processing. The device comprises a clamping assembly and a deflection assembly, the clamping assembly comprises a movable supporting frame body and a plurality of adsorption units, the multiple adsorption units are fixedly connected with the supporting frame body, and the adsorption units can adsorb or release a sheet film through negative pressure; the deflection assembly comprises a rotatable deflection unit and a first suction cup, the two ends of the deflection unit are connected with the first suction cup and the supporting frame body respectively, the deflection unit can drive the first suction cup to rotate relative to the sheet film to form an adsorption position and a deflection position, the first suction cup is arranged in parallel relative to the sheet film at the adsorption position, and the first suction cup is arranged in parallel relative to the sheet film at the deflection position. The first suction cups are obliquely arranged relative to the sheet films, and the first suction cups can suck the edges of the sheet films and deflect the edges of the sheet films so that the adsorbed sheet films can be separated. According to the utility model, sheet films can be prevented from being adhered together to enter a cutting process.

The utility model relates to the technical field of plate-type membrane equipment, and discloses plate-type membrane equipment for cheese production, which comprises a plate-type membrane equipment body, one side of the plate-type membrane equipment body is fixedly connected with a fixed mounting rack, and the inner side of the fixed mounting rack is fixedly provided with a controller. Protection mechanisms are fixedly connected to the upper end and the lower end of the controller and the end parts close to the rear surface, and a fixed driving mechanism is fixedly connected to the top of the plate type membrane equipment body. Through mutual cooperation between the arranged protection mechanism and the fixed driving mechanism, the protection mechanism can be driven through the fixed driving mechanism in the use process, so that the protection mechanism can move, the controller is exposed, operation adjustment is conducted on the controller, and after operation adjustment is completed, the protection mechanism can be driven by the fixed driving mechanism to move. The protection mechanism is reset through the fixed driving mechanism, the controller is blocked, mistaken touch is avoided, and operation is convenient.

The invention belongs to the technical field of composite films, and particularly relates to a high-strength stretch-resistant film and a preparation method and application thereof. The high-strength stretch-resistant film is formed by compounding a PE sheet film and PE woven cloth. The PE sheet film is prepared from the following raw materials in parts by weight: 100 parts of polyethylene, 25 to 35 parts of modified aerogel, 5 to 8 parts of ethylene-octylene copolymer and 0.1 to 0.5 part of antioxidant, the modified aerogel is prepared from the following raw materials: diamino silane oligomer modified cellulose and a light stabilizer. The PE sheet film with metallocene linear low-density polyethylene, high-density polyethylene and ethylene-octene copolymer as main bodies is adopted, the PE sheet film and the PE woven cloth are compounded, then the high-strength stretch-resistant film is obtained, the high-strength stretch-resistant film has good plasticity, modified aerogel is creatively prepared, and the weather resistance of the high-strength stretch-resistant film is improved.

The utility model discloses a ceramic cast sheet laminating device, and belongs to the technical field of laminating devices. A ceramic cast sheet film covering device comprises a base and a supporting seat and further comprises an upper cover fixedly connected to the base, a feeding hole is formed in the upper cover, and a first supporting plate and a second supporting plate are fixedly connected to the supporting seat; the first supporting plate is rotationally connected with a first conveying roller, and the second supporting plate is rotationally connected with a plurality of second conveying rollers. A grinding roller and a feeding roller are rotationally connected into the upper cover, a sliding rail is fixedly connected to the base and the upper cover, a cutting block and a lifting block are slidably connected into the sliding rail, and a cutting blade is fixedly connected to the cutting block; when the grinding roller rotates to feed materials, the lifting block and the cutting block do reciprocating relative approaching or separating motion to cut the casting sheet; according to the utility model, flaky casting sheet main bodies with the same length can be cut, so that the laminating sheet and the casting sheet main bodies can be attached more tightly, and meanwhile, the generation of bubbles can be reduced.

The utility model discloses a stacking jig applied to a discharging area of a die-cutting machine, which comprises a nylon jig, the nylon jig comprises a base and an adjusting seat, the lower end of the base is hinged with a clamping end, and the clamping end is used for clamping the edge of a table top to stabilize the base; a placement groove is formed in the base, strip-shaped grooves are formed in the two sides of the placement groove, and a plurality of positioning holes are vertically formed in the strip-shaped grooves; the adjusting base is arranged in the containing groove in a lifting mode, limiting grooves matched with the strip-shaped grooves are formed in the two sides of the adjusting base, a plurality of spring columns are vertically arranged in the limiting grooves, and the tail ends of the spring columns are connected with adjusting mechanisms. The sheet film stacking jig has the advantages that the technical problems that in the prior art, when a stacking jig is placed on a table top, stability is poor, displacement is prone to occurring, meanwhile, when the height of the stacking jig is adjusted, the adjusting process is tedious, and the sheet film stacking efficiency is invisibly reduced are solved.

The utility model discloses a double-sided hidden holographic image-text film structure and an anti-counterfeit label, the film structure comprises a base film layer, a UV curing holographic layer and a plastic filling layer which are laminated from top to bottom, the UV curing holographic layer is provided with a first pattern, the first pattern forms a nanoscale sawtooth groove on the UV curing holographic layer, and the first pattern is provided with a second pattern. The sawtooth grooves are completely filled with the plastic filling layer, a plane interface is formed, a second pattern is formed on the side, facing the first pattern, of the plastic filling layer, the first pattern and the second pattern can be separated, and after separation, the surfaces of the first pattern and the second pattern are not sticky. The display device is in a transparent state when not uncovered, the first pattern and the second pattern can be completely seen after the display device is uncovered, and the display device has the advantages of attractiveness and concealment.

The utility model relates to aluminium plate processing equipment technical field, name is a kind of aluminium plate film device, including device frame, raw material roller and film roller are installed on the right side upper surface of device frame, still install two edge-boarding plates of front and back in the left side of film platform, two edge-boarding plates are respectively installed in the left side of film platform, the edge-boarding plate has the import of film aluminium plate in the right side and the export of film aluminium plate in the left side, the edge-boarding plate has the folding wing piece at import, the folding wing piece is the component that free wing is turned up inside, the folding wing piece is gradually turned over on the top of aluminium plate to the left, and left end passage of film aluminium plate side is formed in the left end of edge-boarding plate.

The utility model discloses a film laminating machine for PET (polyethylene terephthalate) sheet processing, which relates to the technical field of PET sheet film laminating and comprises a bottom plate, a film laminating unit is arranged on the top surface of the bottom plate, a tensioning unit is arranged on one side of the film laminating unit, a fixing unit is arranged on one side of the film laminating unit, a limiting unit is arranged on the inner side of the fixing unit, and the limiting unit is arranged on the inner side of the fixing unit. And the tensioning unit comprises a limiting frame, the limiting frame is arranged on one side of the film covering unit, the inner side of the limiting frame is rotationally connected with a second guide roller, the inner side of the limiting frame is slidably connected with a sliding block, one side of the sliding block is rotationally connected with a third guide roller, and a sliding rod slidably penetrates through the inner side of the sliding block. Through the arrangement of the limiting frame, the second guide roller, the sliding block, the third guide roller, the sliding rod and the first spring, the effect of controlling the tension of the PET sheet in the moving process of the PET sheet is achieved, the PET sheet is further kept in a tight state, and meanwhile the attaching degree between the PET sheet and a film covering material is improved.

The utility model relates to the technical field of sheet material film sticking machines, in particular to a visual alignment sheet material film sticking machine which comprises a lower rack, an upper rack arranged on the upper side of the lower rack, a stock bin assembly fixedly arranged on one side in the upper rack, a sheet material transferring assembly arranged above the stock bin assembly, and a film stripping assembly arranged on the upper side of the lower rack. A film drawing assembly is arranged in the lower rack, a film outlet platform is arranged at the top of the film drawing assembly, a film pasting mechanical arm assembly is arranged at the top in the upper rack, a lower camera is arranged in the lower rack, and a conveying belt assembly is fixedly arranged on the upper side of the lower rack. The automatic film pasting machine solves the problems that an existing film pasting technology consumes manpower resources, is low in working and production efficiency and is not suitable for mass production.

The invention belongs to the technical field of color-coated sheet production, and particularly relates to a high-end fluorocarbon building color-coated sheet film thickness and color difference stabilization control method which comprises the following steps: 1) performing pretreatment of degreasing, rinsing, surface conditioning and re-rinsing on a base material; (2) passivation is conducted, specifically, a chromium-containing passivation technology is adopted, and after passivation, the weight of a chemical coating film is controlled to be 25-35 mg / m < 2 >; after drying and cooling, the temperature of the base material is 60-70 DEG C; (3) coating, wherein the deviation of the coating temperature is controlled within + / -0.5 DEG C; the RN two-roller reverse coating is adopted, and the roller speed, the roller pressure and the A-P roller gap of the P roller and the A roller are controlled; the viscosity of the coating is controlled, the color difference delta E of the coating is smaller than or equal to 0.5, and delta b * ranges from-0.2 to-0.4; the plate temperature of the color-coated plate in a primary coating curing oven is controlled, and the furnace temperature and the air speed of a fine coating curing oven are controlled, and the cooling water temperature, the spraying pressure and the drying temperature are controlled. The method has the advantages that the technical problems that in high-end fluorocarbon building color-coated plate production, the film thickness control precision is poor and the color difference is unstable for a long time are effectively solved.

The utility model provides a kind of electric heating lunch box with vacuum function, including shell, upper cover, vacuumizing box, inner bag, the heating sheet film of adhering in the outside of inner bag, control circuit electrically connected with heating sheet film;Upper cover is provided with exhaust hole, detachable sealing silica gel plug is set on exhaust hole, sealing silica gel plug is used to seal exhaust hole;Vacuumizing box is detachably set on upper cover, the exhaust end of vacuumizing box is opposite to exhaust hole, vacuumizing box is used to vacuumize in inner bag through exhaust hole, the exhaust end of vacuumizing box can accommodate sealing silica gel plug located on exhaust hole.The electric heating lunch box with vacuum function of the utility model has the function of heating and vacuumizing preservation simultaneously, the exhaust end of vacuumizing box can accommodate sealing silica gel plug located on exhaust hole, and vacuumizing box is conveniently stored or carried with electric heating lunch box.

1. Name of the product in this design: Silicon carbide flat sheet membrane housing. 2. Purpose of this design: It is used for encapsulating and protecting silicon carbide flat sheet films, suitable for water treatment and other application scenarios. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.