10408results about "Lamination" patented technology

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention relates to the technical field of non-woven fabrics, in particular to a production process of a functional fiber woven non-woven fabric body, the non-woven fabric body comprises a non-woven fabric base body, middle layers are arranged on the upper portion and the lower portion of the non-woven fabric base body, and outer layer bodies are arranged on the outer sides of the middle layers; the middle layer is compounded with the upper part and the lower part of the non-woven fabric base body through polyurethane glue, and the dosage of the polyurethane glue is 20g / m < 2 >; the non-woven fabric body is formed by mutually matching a non-woven fabric base body, a middle layer and an outer layer body, the non-woven fabric base body is formed by weaving first modified spandex fibers and polyester fibers, the middle layer is formed by interweaving second modified polyester fibers and hemp fibers, and the outer layer body is formed by spraying an outer layer agent. The product is excellent in wear resistance, stain resistance, heat preservation and breaking strength, remarkable in comprehensive coordination effect and excellent in washing resistance and ultraviolet stability resistance.

The invention belongs to the technical field of personal protection equipment, and particularly relates to a lightweight cut-resistant four-dimensional structure fabric based on high-performance composite fibers and a preparation method of the lightweight cut-resistant four-dimensional structure fabric. The structure is based on a high-performance composite fiber material and a nano silicon carbide embedding technology of high-performance polyethylene fibers, the hardness bottleneck of a single material is broken through, and multi-fiber compatibility is improved through cooperation of polyurethane fiber surface activation and polyurethane fiber anti-melting modification. The gradient twist core sheath yarn is a high-performance composite yarn, and the strength and the flexibility are balanced. In the aspect of the oversleeve fabric structure, a three-dimensional protection system comprising a honeycomb structure, a silica gel liner and a skin-friendly inner layer is adopted, so that the integration of multiple functions of hydrophobicity, fusion resistance and buffering of a light-weight cut-resistant material is realized. Under the EN 388 standard, 5-level cutting prevention can be achieved, a single high-performance polyethylene fiber cutting prevention oversleeve can only reach 3-4 levels, the weight of the composite fiber material is reduced by 40% compared with that of a full aramid fiber oversleeve, the thickness is reduced by 25%, and the composite fiber material can be suitable for complex scenes such as petroleum and electric power.

The invention relates to the field of civil engineering waterproof materials, in particular to a nano bentonite-polymer composite material with high salt tolerance and a preparation method thereof, and the nano bentonite-polymer composite material is especially suitable for a sodium-based bentonite waterproof blanket in a saline soil area or a marine environment, and the preparation method comprises the following steps: (1) preparing nano bentonite lamellar colloidal dispersion liquid; (2) introducing and mixing an electrostatic screening agent and a polymerizable monomer; (3) carrying out in-situ free radical polymerization reaction; and (4) post-treatment and finished product preparation. By constructing a three-dimensional interpenetrating hierarchical structure composed of a covalent grafted polymer network, a physically anchored electrostatic screening agent and a stripped bentonite nanosheet layer, effective protection of a bentonite core anti-seepage unit is realized, so that the adaptability and long-term stability of the material under a complex water quality condition are remarkably improved.

The invention discloses a production process of tempered laminated glass, which belongs to the technical field of tempered glass, and comprises the following steps: strictly screening raw sheets, carrying out three-zone gradient tempering, namely, mutually combining 680-700 DEG C temperature zone temperature control and 8-12kPa gradient wind pressure quenching, and precisely compounding by using a PVB interlayer to obtain the tempered laminated glass. 23 DEG C / 30% RH pre-balancing, 0.5 mm vacuum positioning and 120-140 DEG C rolling initial pressing are combined, and then high-pressure kettle staged curing, namely, the process of heat preservation for 120 minutes at 1.2 MPa / 135 DEG C and the process of gradient cooling at the temperature smaller than or equal to 15 DEG C / h are combined, so that the finally prepared tempered glass product has high optical performance, namely distortion smaller than or equal to 0.1 mm / mm, high impact resistance, namely no penetration in 1m steel ball falling and excellent weather resistance; degumming is avoided in the environment of 85 DEG C / 85% RH / 500 h, and accurate control over the whole process from materials to finished products is achieved. Therefore, the production process of the tempered laminated glass solves the technical problem of how to improve the production efficiency of the tempered laminated glass.

The invention discloses a silk protein-MXene composite film and a preparation method thereof. The silk protein-MXene composite film sequentially comprises a conductive surface layer, a porous response layer and a supporting bottom layer from top to bottom, the invention relates to the technical field of composite films. According to the fibroin-MXene composite film and the preparation method thereof, a three-layer gradient structure is formed by the conductive surface layer, the porous response layer and the supporting bottom layer, good conductivity and electromagnetic shielding effectiveness are ensured by utilizing oriented arrangement of MXene of the conductive surface layer, gallic acid and MXene form a hydrogen bond network, and nitrogen-doped carbon quantum dots coat the surface of MXene to form a physical barrier, so that the electromagnetic shielding effect is improved, and the electromagnetic shielding effect is improved. Through double oxidation resistance of gallic acid and nitrogen-doped carbon quantum dots, a sponge body structure formed by the porous response layer is matched to endow the composite film with high-sensitivity response to external stimulation, the supporting bottom layer is crosslinked by hexamethylene diisocyanate and enhanced by nanocellulose, the tensile strength is improved, and the tensile strength of the composite film is improved. And the contradiction between the mechanical property and the conductivity of the traditional composite film is effectively solved.

The invention discloses a laminated structure and a differentiated hole machining method of the laminated structure, and relates to the technical field of machining, the method comprises the steps that S1, first reaming is conducted on the laminated structure, and the laminated structure comprises two or more layers of laminated plates; s2, linings made of matched materials are selected according to the material characteristics of different plates; s3, bushings made of different materials are installed in the reamed holes of the matched plates by pulling the core rod; s4, the linings made of the different materials are extruded, so that the linings made of the different materials are in interference fit with the matched plates; and S5, secondary reaming is conducted on the laminated structure according to the assembly requirement, so that the inner diameters of the deformed bushings made of different materials are the same. According to the method, the fatigue performance of plates made of different materials is coordinated through a differential hole machining method, and the fatigue life of the laminated structure is remarkably prolonged; and it is guaranteed that hole machining of different machining amounts is conducted on the laminated structure under one-time hole forming, the continuity of the hole forming technology is guaranteed, and the hole position precision is improved.

The invention relates to the technical field of reverse osmosis membrane supports, in particular to a polyester non-woven fabric and a preparation method and application thereof.The preparation method comprises the steps that S1, polyester main body fibers and polyester adhesive fibers are used as raw materials to prepare high-quantitation original cloth M0 and low-quantitation original cloth H0; carrying out hot pressing pretreatment on the H0 to obtain a product H0 '; s2, overlapping and hot-pressing M0 and H0 'to obtain a composite non-woven fabric M1H1; s3, the M1H1 is impregnated with a functional solution, and the functional solution contains para-aramid nanofibers and nano calcium carbonate modified by hexadecyl trimethyl ammonium bromide; and then carrying out cold pressing on the composite non-woven fabric impregnated with the functional solution to obtain the nano-material modified composite non-woven fabric. And S4, carrying out secondary hot pressing treatment to obtain the polyester non-woven fabric. The polyester non-woven fabric can effectively avoid the problems of excessive curling, excessive permeation of a polysulfone solution and the like during curing after being coated with polysulfone, and is more beneficial to application in a reverse osmosis membrane.

The invention belongs to the technical field of metal composite materials and hydrogen storage and transportation materials, and particularly relates to a high-strength hydrogen-embrittlement-resistant layered metal composite material for hydrogen storage and a preparation method and application of the high-strength hydrogen-embrittlement-resistant layered metal composite material. According to the preparation method, the nickel-saving austenitic stainless steel (NEASS) and the 30CrMo steel are alternately overlapped in a multi-layer mode, and the processes of vacuum electron beam welding, high-temperature hot rolling, accumulative ply rolling, multi-stage heat treatment and the like are combined, so that the composite board with the layer number reaching hundreds of layers, firm interface bonding, excellent mechanical performance and good hydrogen embrittlement resistance is prepared; the technical problem that strength, toughness and hydrogen brittleness resistance of an existing metal material in a high-pressure hydrogen environment are difficult to consider at the same time is solved. The obtained composite material has high strength, high plasticity and excellent hydrogen embrittlement resistance, and is suitable for structural materials of high-pressure hydrogen storage tanks, hydrogen conveying pipelines and other key hydrogen energy equipment.

The invention relates to a method for producing a weather strip (1), said method comprising the steps of: providing a first and a second sealing element (2, 3), each sealing element (2, 3) comprising a carrier layer (4, 4 ') having an upper main surface and a lower main surface; the carrier layer (4, 4 ') and a filled polymer layer (5, 5') covering at least a portion of the upper main surface of the carrier layer (4, 4 '), and bonding the lower main surface of the carrier layer (4) of the first sealing element (2) to at least a portion of the lower main surface of the carrier layer (4') of the second sealing element (3).

The invention provides a waterproof and windproof warm-keeping fabric and a production process thereof, and relates to the technical field of textile fabrics, the waterproof and windproof warm-keeping fabric comprises a protective surface layer, a windproof temperature-locking middle layer and a skin-friendly warm-keeping inner layer which are sequentially arranged from outside to inside, and the three layers are compounded through a gradient hot melt adhesive; the protective surface layer is a graphene oxide modified polyester fiber fabric treated by a composite hydrophobic finishing liquid; the windproof temperature-locking middle layer sequentially comprises a non-swelling environment-friendly TPU film, a polytetrafluoroethylene microporous film and a Cs0. 33WO3 modified PA6 / 66 hollow fiber net from outside to inside, and the three are laminated and compounded into an integrated structure through hot pressing; and the skin-friendly warm-keeping inner layer is a bamboo pulp fiber-cotton-skin-friendly antibacterial polyester fiber blended fabric loaded with phase change microcapsules. The fabric disclosed by the invention integrates excellent waterproof, windproof and warm-keeping properties, is suitable for outdoor and cold-proof clothes, and has both functions and comfort.

The invention relates to the technical field of functional materials, in particular to a polyvinyl butyral flexible material as well as a preparation method and application thereof. The molecular chain regularity is destroyed through an isobutyraldehyde branched chain, the crystallinity is reduced, and the flexibility is improved; cesium-tin co-doped tungsten oxide has high infrared rejection rate and good dispersity, and the influence on the flexibility of the material is reduced; magnesium salicylate and magnesium formate are compounded, so that the reaction activity with resin is reduced, and the bonding stability in the bending process is ensured; the flexibility and migration resistance of the material are synergistically improved through the flexible plasticizer, and the interlayer sheet is prevented from being sticky; the flexible reinforcing agent polycaprolactone micro powder is used for forming an elastic node, bending stress is absorbed, and the recovery performance is improved. The polyvinyl butyral flexible material provided by the invention has flexible bending performance, an efficient infrared barrier function and stable bonding performance, is suitable for scenes such as curved building curtain walls, special-shaped automobile sunroofs or arc-shaped rail traffic windows, and has a wide application prospect.

The invention relates to the field of composite material ultrathin laminated plates, in particular to a preparation method of a SiC fiber reinforced Ti-based composite material ultrathin laminated plate. The method comprises the following steps: plating Ti alloy on the surface of SiC fiber by using a physical vapor deposition method; the titanium alloy foil is subjected to acid pickling to remove a surface oxide layer and impurities; the plated fibers are tightly arranged to form a SiCf / Ti alloy plate, the upper surface and the lower surface of the SiCf / Ti alloy plate are bonded to a titanium alloy foil through an adhesive, and a foil-plate-foil prefabricated body is manufactured; sealing the periphery of the prefabricated body, covering gaskets on the upper surface and the lower surface of the prefabricated body, removing the adhesive from the prefabricated body, and placing the prefabricated body in a vacuum hot-pressing mold; and a hot-pressing process is adopted to realize densification composite molding of the laminated plate. According to the method, uniform distribution of SiC fibers is achieved, the mechanical property of the material is effectively improved, the surface flatness is good after the laminated plate is prepared, and the method is suitable for weight reduction application of aerospace structural parts such as skins and reinforcing ribs.

The invention relates to the technical field of layered composite fabrics, and discloses a light-absorbing and heat-emitting chinlon fabric, a preparation method and application of the light-absorbing and heat-emitting chinlon fabric to thermal fabrics. According to the invention, the fluorine-free and waterproof light-absorbing and heating finishing agent with excellent light-absorbing and heating performance is prepared, then the sulfydryl silane modified chinlon single-layer fabric is subjected to surface finishing by adopting the light-absorbing and heating finishing agent through sulfydryl-alkene click reaction, and the prepared light-absorbing and heating chinlon single-layer fabric is used as the surface layer fabric; the light-absorbing and heating chinlon fabric obtained by compounding the light-absorbing and heating chinlon fabric with the inner layer made of the acrylic fiber / special-shaped section chinlon blended yarn not only has excellent light-absorbing and heating performance, but also has good waterproof performance of the surface layer, good warm-keeping performance of the inner layer and good wearing comfort, and can be applied to warm-keeping fabrics.

The invention relates to the technical field of road engineering, in particular to a high-performance warm-mixing high-modulus dense water pavement structure and a preparation method thereof. The waterproof bonding layer is prepared by mixing an epoxy resin main agent, a microencapsulated amine curing agent, a functional diluent and filler according to the mass ratio of (50-60): (25-35): (5-8): (12-18), and the filler is expanded vermiculite powder; the mixture lower layer is prepared by mixing a high modulus agent, a lower layer warm mixing agent, asphalt, aggregate and mineral powder according to the mass ratio of (0.4-0.8): (0.3-1.1): (5-6.5): (80-85): (2-5); the high-modulus agent is prepared by mixing POE (Polyolefin Elastomer), modified sepiolite, an interfacial compatibilizer and an anti-aging agent according to the mass ratio of (72-78): (16-20): (4-6): (1-2); a non-stick wheel bonding layer; preparing a mixture upper layer; a curing agent is added into epoxy resin in a microcapsule mode, construction heat triggers microcapsule breaking to achieve accurate epoxy curing, molten POE forms a barb structure in vermiculite gradient pores, sepiolite fibers puncture to construct an anchor chain framework, the three components cooperate to eliminate an interface weak area, and stripping resistance is improved in a leap-over mode.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention relates to a high-precision ultra-long size copper foil die cutting assembly and a production process thereof, the copper foil assembly sequentially comprises a surface insulation film layer, a copper foil layer and a bottom insulation film layer from top to bottom, and the copper foil layer in the copper foil assembly is integrally formed through three times of die cutting of three continuous die cutting roller sets and waste discharging; and a reinforcing insulating film is attached to the outer surface area of the bottom insulating film layer corresponding to the outer end part of the thin and long copper foil strip. The rotary die-cutting machine is adopted for production, the ultra-long copper foil die-cutting assembly (FDC) is segmented according to a specific rule, then a small-size die and a matched splicing type production process are developed and designed, the machining period and machining difficulty of the die can be effectively reduced, the die development and manufacturing cost is reduced, and the production efficiency is improved. Meanwhile, the die damage risk is reduced, and machine adjusting difficulty is lowered; the copper foil material used as the conduction layer in the assembly is expensive and needs precise die cutting, and the staggered layout mode is adopted, so that the waste material area is reduced, and the material utilization rate is improved.

The invention relates to the field of copper-clad plates, and discloses a high-performance flame-retardant low-dielectric-loss copper-clad plate and a preparation method thereof.The copper-clad plate comprises epoxy resin, benzoxazine resin, composite filler, carboxyl-terminated nitrile rubber, an active diluent, a curing agent and the like; the composite filler is prepared by compounding flame-retardant modifier grafted graphene oxide and epoxy silane modified silicon dioxide hollow spheres; according to the flame-retardant modifier, boric acid and pentaerythritol are used for preparing a double-terminal hydroxyl boron-containing intermediate, then dichlorodiphenyl silane and phenylphosphonic dichloride react with hydroxyl groups at the two ends of the intermediate to prepare a flame-retardant intermediate, and amino silane and vanillic aldehyde react with chlorine atoms at the two ends of the intermediate to prepare an aldehyde modified flame-retardant intermediate; the copper-clad plate prepared by the preparation method disclosed by the invention is low in dielectric constant and dielectric loss, high in heat conductivity coefficient and good in flexibility, and also has excellent heat resistance and flame retardance.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention discloses a high-strength heat-insulation aerogel structure with a dual multi-scale design and a preparation method thereof, relates to the technical field of thermal protection of spacecrafts, and in particular relates to the high-strength heat-insulation aerogel structure with the dual multi-scale design and the preparation method thereof. The invention aims to solve the problems of insufficient structural rigidity and poorer thermal protection property and thermal stability of the traditional spacecraft surface aerogel structure under the conditions of extreme high temperature and mechanical load. The structure is composed of an upper carbon-carbon composite material plate, a lower carbon-carbon composite material plate, an alloy skeleton and a filler. The method comprises the following steps: 1, preparing a multi-scale C / C composite material; 2, designing and preparing a titanium alloy honeycomb framework; 3, proportioning the multi-scale aerogel; 4, in-mold in-situ gelation; 5, drying and heat treatment; and 6, assembling and solidifying. The porosity of the aerogel is 85-98%, the structure has high rigidity and thermal protection performance, and the aerogel is applied to the field of aerospace thermal protection.

The invention provides a heat dissipation composite material and a preparation method and application thereof. The heat dissipation composite material comprises a bonding layer, an insulating breathable layer, a heat conduction layer and a heat conduction diffusion layer which are sequentially arranged from bottom to top. Wherein the bonding layer is obtained by mixing and reacting a polymer matrix material, a composite filler and a molecular bridging agent, the insulating breathable layer is a porous insulating material, the heat conduction layer is a graphene film, and the heat conduction diffusion layer is prepared from porous matrix composite heat conduction nanoparticles. According to the invention, through combination and structural design of each layer of material, a synergistic effect of a multi-layer structure is realized, firm and stable bonding of the heat dissipation composite material and a heating electronic device is realized, the heat dissipation efficiency and insulation air permeability of the heat dissipation composite material are remarkably improved, and the heat dissipation requirement of high-power-density electronic equipment can be met.

The invention provides a heat-storage warm-keeping down-locking layered fabric and a down jacket. The heat-storage warm-keeping down-locking layered fabric sequentially comprises a skin-friendly layer, a liner cloth layer and a heat-storage warm-keeping down-locking layer from inside to outside, and the heat-storage warm-keeping down-locking layer is prepared by napping a heat-storage warm-keeping fabric; yarns for weaving the heat-storage and warm-keeping fabric are heat-storage and warm-keeping fiber / hollow polyester fiber / wool fiber blended yarns; the heat-storage warm-keeping fiber comprises polyester and a heat storage agent, and the preparation method of the heat storage agent comprises the following steps: firstly loading a polyethylene glycol / nano molybdenum disulfide composite material by adopting porous silicon dioxide microspheres, then mixing with a mixture containing silica sol and nano metal silver, and performing vacuum drying to obtain the heat storage agent. The heat-storage warm-keeping down-locking layered fabric has excellent heat-storage warm-keeping effects, can lock down, has a good antibacterial effect, and has a very good application effect when being used as a lining fabric of a down jacket.

The invention discloses a composite heat insulation coating structure and method for a high-temperature component of an unmanned aerial vehicle. The structure comprises a heat insulation base material layer made of a high silica glass fiber material and a reflecting layer made of metal foil, and the heat insulation base material layer and the reflecting layer are compounded into a whole. The reflecting layer is used for reflecting heat radiation, and the heat insulation base material layer is used for blocking heat conduction. The problems that a traditional ceramic fiber material is prone to embrittlement and short in service life in a high-temperature vibration environment are effectively solved through a double heat insulation mechanism of reflection-blocking. The coating structure has excellent heat-resistant cyclicity, good flexibility and process adaptability, can perfectly fit special-shaped structures such as a bulkhead and a tail cover of the unmanned aerial vehicle, and remarkably improves the reliability and prolongs the service life of a thermal management system of the unmanned aerial vehicle.

The invention belongs to the technical field of packaging materials, and discloses a high-temperature-resistant heat-seal straw-pluggable easy-to-tear cover and a preparation method thereof.The body comprises a PET layer, a blocking layer and a PE layer which are sequentially compounded from outside to inside, the blocking layer is an AL layer, laser invisible pre-scribed lines are arranged on the easy-to-tear cover, the laser invisible pre-scribed lines only penetrate through the PET layer and the blocking layer and do not penetrate through the PE layer, the thickness of the PET layer ranges from 12 micrometers to 20 micrometers, and the thickness of the PE layer ranges from 12 micrometers to 20 micrometers. The barrier layer is an AL layer, the thickness of the AL layer is 7-12 microns, the thickness of the PE layer is 40-60 microns, and the PET layer is prepared from the following raw materials in parts by weight: 80-95 parts of PET resin, 5-10 parts of composite modified nano silicon dioxide, 3-6 parts of a heat stabilizer and 0.5-2 parts of a lubricant; the composite modified nano silicon dioxide is maleic anhydride grafted polybutadiene composite modified nano silicon dioxide, and the composite modified nano silicon dioxide is uniformly dispersed in a PET matrix by virtue of good compatibility with PET resin, so that the overall toughness and heat sealability of the easy-to-tear cover are remarkably enhanced.

The application provides a composite structure, a shell and an electronic device, the composite structure can be applied to the shell or the electronic device, the composite structure comprises at least one first fiber prepreg, the first fiber prepreg comprises a fiber sheet and a resin wrapping the fiber sheet; the fiber sheet comprises a fiber cloth and a plurality of plating layers on the surface of the fiber cloth, the difference between the refractive indexes of two adjacent plating layers in the plurality of plating layers is greater than or equal to 0.4. In the composite structure provided by the application, the difference in brightness is formed by the difference in refractive indexes between adjacent plating layers, and the appearance of the fiber composite when applied to the shell and the electronic device is improved.

The application relates to a front windshield, a manufacturing method thereof and a vehicle, comprising: an outer layer glass having a first surface and a second surface arranged oppositely; an inner layer glass having a third surface and a fourth surface arranged oppositely; and a thermoplastic intermediate layer arranged between the second surface and the third surface; the front windshield has a first weakened area, the first weakened area is tested according to the adult headform impactor in the standard GB24550, the adult headform impactor impacts the first weakened area to break the first weakened area, and the adult headform impactor impacts the instrument desk after the first weakened area is broken; the adult headform impactor has a first speed V1 when contacting the first surface of the first weakened area, the adult headform impactor has a second speed V2 when the fourth surface of the first weakened area is broken, and V1 and V2 satisfy: V1=11.1+ / -0.2 m / s, and V1-V2=0.3-2.2 m / s. The front windshield, the manufacturing method thereof and the vehicle can effectively reduce the overall injury of a pedestrian and the windshield in a collision.

The invention discloses film laminating equipment, which comprises an unwinding mechanism, a film laminating mechanism, a film laminating mechanism and a film laminating mechanism, the gluing mechanism is used for uniformly coating glue on the surface of the spread iron plate of the iron roll in a roller coating or spray coating or blade coating mode; the heating box is arranged at an outlet of the gluing mechanism, and the iron plate directly enters the heating box after being glued; and the film covering mechanism is arranged at the outlet end of the heating box and is provided with an unwinding group, a film tearing group, a buffer roller group, a preheating pressing group, a cooling group and a winding group. The film laminating mechanism is tightly arranged at the outlet end of the heating box, rapid bearing of the iron plate is achieved through the buffer roller set, the iron plate conveying distance is greatly shortened, the iron plate enters the film laminating mechanism, the viscosity of an adhesive layer on the iron plate is activated through waste heat, power consumption of a preheating pressing set of the film laminating machine is reduced, and the preheating time is shortened; the gluing force of the iron plate and the colored film is improved, the production cost is greatly reduced, and efficient and energy-saving production is achieved.