60 results about "Laser heating" patented technology

The application relates to a growth method of a single crystal fiber with a continuous gradient distribution of doping ions, comprising the following steps: cutting at least two homogeneous crystals or ceramics with different doping ion concentrations and a homogeneous crystal or ceramic without doping ions into square rods; selecting the square rod without doping ions as a first seed crystal, selecting the square rod doped with a first ion concentration as a first source rod, and performing a first forward growth of the single crystal fiber by using a laser heating base method; after the single crystal fiber doped with the first ion concentration is grown to a required length, adding a square rod doped with a second ion concentration as a source rod to continue the first forward growth of the single crystal fiber by fusion, and repeating the operation N times until the single crystal fiber doped with each ion concentration is grown to the required length; and sequentially performing a first reverse growth, a second forward growth and a second reverse growth on the obtained fused single crystal fibers with different doping ion concentrations to obtain the single crystal fiber with the continuous gradient distribution of the doping ions.

Disclosed in the present invention are a reaction device for narrow-band luminescence indium phosphide quantum dots, and a method for producing narrow-band luminescence indium phosphide quantum dots using the reaction device. The reaction device comprises a high gravity device and a photothermal device, wherein the high gravity device comprises a housing, an electric motor, a rotating disk, shear packing, a liquid distributor, a reaction chamber, a packing cover, a gas outlet, a liquid outlet and liquid inlets; and the photothermal device comprises a laser heating device, a circuit and water cooling device, a reflective layer and a laser controller. In the present invention, infrared laser is coupled into a high gravity reactor, and solvent media such as water or organic compounds are used to absorb infrared light and convert same into thermal energy to raise the temperature of the high gravity reactor, so as to initiate a nucleation reaction of a reactant precursor in a "micro-droplet reactor", thereby realizing the controllable growth of quantum dots in the micro-droplet reactor; and then nanoparticles of uniform size are finally obtained by means of controlling the laser irradiation and heating duration.

The application discloses an aerosol generating device. The aerosol generating device of the application includes a laser heater and a controller. The laser heater is configured to radiate and heat an aerosol generating substrate. The controller is configured to adjust the output energy of the laser heater according to the working condition of the laser heater within a puffing period. The aerosol generating device of the application radiates and heats the aerosol generating substrate by the laser heater. The laser heating technology has the characteristics of high energy density and fast power response speed, and can quickly radiate energy to the aerosol generating substrate without preheating the heating body, thereby quickly generating aerosol, without long waiting time for the user, and good user experience. Further, within the puffing period, the controller adjusts the output energy of the laser heater according to the working condition of the laser heater, so that the aerosol released by each puff has good consistency.

A kind of metal pipe fitting electromagnetic forming device and method based on laser heating, with positioning system including positioner, first guide rail, first numerical control moving platform, for accurately positioning metal pipe fitting and mold coordinates;Conveying system includes second guide rail, numerical control moving platform, motor, for realizing the rotation and movement of metal pipe fitting;Heating system includes laser heating device, temperature detector;Electromagnetic forming system includes spiral tube coil, mold, capacitor, DC power supply and control switch;Its characterized in that, motor, fixture, metal pipe fitting, mold, spiral tube coil are horizontally distributed on the same axis, metal pipe fitting can be rotated with the help of motor, and can be moved in the gap between spiral tube coil and mold with the aid of conveying system.The present application can realize uniform heating when metal pipe fitting electromagnetic warm forming, greatly improve heating efficiency, reduce heat affected zone, and improve the position accuracy of metal pipe fitting local microstructure electromagnetic forming.

The application relates to a laser-assisted roller working head for an intelligent robot, which comprises a roller working head, a laser working head, an adjustable support, the laser working head is adjustably connected with the roller working head through the adjustable support to realize laser heating treatment of a workpiece during roller working head roller working process, the roller working head comprises a roller wheel assembly, a pressing rod, a connecting disc and a pressure sensor, the roller wheel assembly is arranged at one end of the pressing rod and can rotate to realize roller working operation on the workpiece, the other end of the pressing rod is connected with the connecting disc through the pressure sensor, and the connecting disc is mechanically connected with a mechanical arm of the intelligent robot to realize roller working operation on the workpiece by driving the roller working head through the intelligent robot; the application has the advantages of reasonable design, convenient adjustment, realized laser-assisted heating and real-time monitoring and control during the roller working process, improved roller working quality, high safety and high intelligent degree.

This invention provides an experimental apparatus and method for simulating the movement of metal particles inside a GIS (Gas Insulator System). The apparatus includes: a transparent outer shell with a sealed cavity inside, housing an insulator, a central conductor, and metal particles simulating a GIS device; a grounded transparent conductive film disposed on the inner wall of the transparent outer shell; a laser heater disposed outside the transparent outer shell; the laser heater emits a laser beam to the central conductor to heat it; a vibration generator connected to the outer wall of the transparent outer shell to drive the transparent outer shell to vibrate, simulating vibration conditions; and a gas conditioning device connected to the sealed cavity to extract gas from the sealed cavity and introduce insulating gas from the GIS device to regulate the gas environment. This invention provides an experimental apparatus and method for simulating the movement of metal particles inside a GIS, which can solve the problems of heat generation simulation distortion, limited observation, and lack of vibration condition simulation in observation platforms.

The present application relates to the field of sealing, in particular to an end face sealing structure of a plug valve and a manufacturing method thereof. The end face sealing structure of the plug valve of the present application mainly comprises a detachable connecting structure, an end face sealing ring, a sealing cover plate, an O-shaped sealing ring and a sealing base plate. The sealing cover plate is fixed on the sealing base plate through the detachable connecting structure on the inner side, and the sealing cover plate and the sealing base plate are sealed through the O-shaped sealing ring; the outer side of the sealing cover plate is provided with the end face sealing ring. The fusion of the end face sealing ring is realized by laser heating, the side surface of the end face sealing ring is fused first, and then the bottom surface of the end face sealing ring is fused, and the local non-uniform heating mode is adopted to ensure that no internal stress is generated in the laser fusion process, so that the deformation of the sealing ring caused by stress release can be prevented, and the sealing effect is affected. The present application can be applied to the end face sealing of a vacuum plug valve.

A laser tobacco ignition device and a method for manufacturing the same, wherein the laser tobacco ignition device includes a case (10), a light-transmitting container (20) located inside the case (10), and a laser light emission unit provided between the case (10) and the light-transmitting container (20) and including a plurality of lasers (30) whose light emission directions face the light-transmitting container (20). Among them, an atomization-ready raw material and an endothermic material are provided inside the light-transmitting container (20). The laser (30) is configured to heat and atomize the atomization-ready raw material, and the endothermic material is configured to absorb heat to increase the degree of atomization of the atomization-ready raw material.

The invention discloses a fiber spinning drafting system suitable for a low-gravity environment, and relates to the technical field of glass fibers and optical fibers, the system is combined with a laser heating gas suspension system, and a supporting roller, a three-axis combined linear module, a wire drawing needle head, an automatic material supplementing system, a shielding supporting box body, a computer control system and the like are added. The pressed powdery raw material is conveyed to an air suspension nozzle and is heated and melted into a high-temperature melt through laser, a wire drawing needle tip on a wire drawing module is made to make contact with the melt by accurately controlling and moving the wire drawing module, thick wires are led out from melt liquid drops, and the thick wires pass through a supporting roller and then are wound on a wire winding cylinder of a wire drawing machine; and the winding speed is adjusted by adjusting the power of the motor, so that basalt fibers with different diameters are obtained. The wire drawing device and method are simple, the problems existing in the prior art are solved, multiple functions are achieved through the structure of the wire drawing device, and the wire drawing device has excellent functionality and serviceability and has wide application prospects.

The embodiment of the specification provides a laser heating control method and device, wherein the laser heating control method controls a laser module to output at a high power and move at a high speed along a predetermined path in a first heating stage, so as to realize rapid and uniform preheating of a large-size plate; and controls the laser module to output at a low power and be positioned at at least one heating position of the plate for accurate heating in a second heating stage, so as to effectively inhibit plate deformation while ensuring heating efficiency through phased coordinated control of the power and the moving speed, and realize an optimized balance between the heating effect and the deformation amount.

The application relates to a structural health monitoring system and application thereof. A preparation method of a carbon fiber reinforced thermoplastic composite material involved in the system comprises the following steps: providing a plurality of carbon fiber reinforced thermoplastic resin layers; prepositioning a multifunctional sensor unit array between adjacent thermoplastic resin layers, the multifunctional sensor unit array comprising a functional film containing ferroelectric ceramic, an electrode layer, and an insulating protective layer between the functional film and the carbon fiber layer; wherein the functional film comprises ferroelectric ceramic material with dielectric and piezoelectric response characteristics; and performing selective laser solidification on the layer area prepositioned with the multifunctional sensor unit array, so that the layer interface locally melts under the action of laser heating and embeds the multifunctional sensor unit array between adjacent layers; wherein the peak temperature of the laser heating area in the selective laser solidification process is not higher than 200 DEG C.

This application relates to a drying apparatus, control method, control device, equipment, storage medium, and program product. The drying apparatus includes a laser, which is disposed outside the drying oven and is used to emit laser light into a homogenizing lens assembly corresponding to the laser inside the drying oven according to the current laser power; the homogenizing lens assembly is used to process the laser to obtain a homogenized spot on the coating of the substrate; a temperature meter, which is disposed inside the drying oven and is used to detect the temperature of the coating and send the temperature to a controller; and a controller, which is electrically connected to the laser and the temperature meter, and is used to control the laser power of the laser according to the temperature, thereby controlling the temperature of the coating by controlling the laser power, reducing the probability of excessive temperature during the coating drying process, and improving the safety of the laser heating process of the coating.

The application belongs to the technical field of laser application equipment in thermal parameters, and provides a narrow space laser heating and temperature control device and a control method thereof, which can perform high-temperature heating on the material surface inside the narrow space of a missile such as an electric antenna cover, a fairing or an instrument cabin, can complete multiple parameter test tasks in cooperation with other thermal and optical test devices, and has an excellent application prospect. By adopting a non-confocal multi-fiber laser heating technology and combining a miniaturized and integrated water-cooled sleeve pipe circular collimating mirror design, a technical problem of uniformly and efficiently heating the material surface inside the narrow space such as an antenna cover, a fairing or an instrument cabin is successfully solved.

This invention discloses a method for preparing a titanium-copper explosive composite cylinder for a high-conductivity cathode roller, belonging to the field of electrolytic copper foil production equipment. The method includes the following steps: preparing TA1 industrial pure titanium plates and T2 industrial pure copper plates; performing staggered explosive composite welding on the TA1 titanium plate and T2 copper plate; rolling the titanium-copper explosive composite plate into a circle; welding the opening of the rolled titanium-copper explosive composite plate, wherein the internal copper weld is performed using gas metal arc welding (GMAW) and the external titanium weld is performed using friction stir welding; and the external titanium weld is subjected to local laser heating treatment to achieve uniformity between the titanium weld and the base material. The preparation method provided by this invention achieves a stable connection between titanium and copper, which are dissimilar and incompatible metals, simplifies the production process of the titanium cylinder for the cathode roller, improves production efficiency, reduces the amount of machining waste for the titanium cylinder for the cathode roller, and lowers the material cost in the cathode roller manufacturing process.

This invention discloses a one-dimensional polymeric nitrogen chain, its preparation method, and its applications. The one-dimensional polymeric nitrogen chain is an allotrope of nitrogen and has an orthorhombic crystal structure. Cmc The 21-phase structure consists of infinite nitrogen chains extending along a one-dimensional direction, with bond types primarily N=N and N-N, exhibiting a typical serrated [-N=N-N=N-] chain framework. The preparation method involves nitrogen polymerization induced by laser heating under high pressure. In-situ Raman spectroscopy and synchrotron X-ray diffraction experiments characterized the product, confirming the formation of a novel one-dimensional polymerized nitrogen chain. Theoretical calculations indicate that this structure exhibits approximately 2.723 g / cm³ at ambient pressure. 3 It boasts high density and a high energy density of approximately 8.78 kJ / g. This makes it applicable to the field of all-nitrogen energy materials, laying the foundation for the widespread application of novel green high-energy materials.

The present application relates to the field of machining, and discloses a dynamic clamping device and method for laser heating forming of plate materials, the device comprising at least two groups of clamps, a sliding block and a clamp base, the two groups of clamps being a forming clamp group and a positioning clamp group respectively, the forming clamp group and the positioning clamp group being used for fixing the plate materials on the clamp base, the positioning clamp group and the forming clamp group each comprising at least one group of symmetrically arranged clamp units, each clamp unit comprising a cylinder, a clamp and a rotatable fixing block, one end of the clamp being connected with a cylinder piston rod of the cylinder, the rotatable fixing block being fixedly connected with the cylinder, the clamp being hingedly connected with the rotatable fixing block, the cylinder piston rod of the cylinder being moved up and down to move the clamp up and down to release and clamp the plate materials, and the cylinder being slidably arranged on the clamp base. The present application is different in clamping position due to different laser scanning positions, and compared with the conventional fixed-position clamping mode, the clamping method can significantly improve the laser heating bending forming precision of the metal plate materials.

This invention relates to the field of laser beam shaping and heating technology, specifically to a dual-mode laser heating spot homogenization control method and system. The invention achieves automatic selection between point heating and surface heating optical paths through an optical path switching mechanism, and controls a displacement actuator to drive a collimation module to move along the optical axis using a preset mapping relationship, changing the divergence angle and projection aperture of the incident beam, thus achieving rapid spot size transformation without changing external mirrors. The laser beam sequentially passes through a total internal reflection integrating mirror and a freeform surface homogenizing mirror for two-stage homogenization and decoherence processing, generating a rectangular uniform spot. A detection module acquires the spot heat flux distribution data, iteratively calculates the displacement compensation amount using an optimized algorithm model, and performs micron-level compensation by the displacement actuator, locking the spot uniformity above a preset threshold in real time. A conformal microchannel liquid cooling circuit is provided on the back of the total internal reflection integrating mirror for forced cooling to maintain surface shape accuracy.

The utility model discloses a hot press forming device for metal sheet surface treatment, include: positioning seat, be provided with positioning table on it, be provided with positioning groove on the positioning table, first detection spare, be located one side of positioning seat, second detection spare, be located the other side of positioning seat and hot press forming spare, it includes telescopic pneumatic cylinder, connecting plate and hot press plate, telescopic pneumatic cylinder connects in connecting plate top, hot press plate connects in connecting plate bottom, the utility model discloses through setting first detection spare and second detection spare in positioning seat both sides, before carrying out hot pressure, through camera to its appearance carries out detection, through ultrasonic wave to its internal defect carries out detection, real -time scanning surface topography and internal defect, if detects microcrack or bubble, takes it down and repairs, or directly sets up laser heating repair device on one end of positioning seat, carries out direct repair to it, then carries out hot pressure, improves the electroplating quality of follow -up.

The application relates to the field of civil aviation passenger plane disassembly and maintenance, in particular to a quick rivet pulling disassembly device for an airplane based on laser local softening. The device comprises a laser heating softening module, a pulling driving module, a replaceable pulling mechanism and a control system. The laser heating softening module is used for locally irradiating the rivet to be disassembled by laser, so that the rivet material is short-time softened without melting, thereby reducing the bonding strength between the rivet and the airplane skin; the pulling driving module drives the pulling mechanism to apply a pulling force along the axis direction of the rivet within a predetermined time window after the softening of the rivet under the coordinated control of the control system, and the rivet is pulled out as a whole. The pulling mechanism can adopt an inner supporting type or an outer clamping type structure to adapt to airplane rivets of different types and installation states. Through the synergistic effect of laser controlled softening and axial pulling, the application realizes quick and low-damage disassembly of the airplane rivet, effectively reduces the damage to the airplane skin and the surrounding structure, improves the disassembly efficiency, and is suitable for various application scenarios such as disassembly of retired airplanes and airplane maintenance.

Systems and methods for printing lightweight lattices using coordinated multi-axis motion are disclosed. The lattices can be printed from silica glass filament. Strut members are printed by heating the filament with a laser and feeding the filament in at a constant angle, which allows for minimum deflection and increases printing speed. This takes advantage of molten glass viscosity and applies forces onto workpieces by the filament feeding or by the movement of the substrate relative to the feeder at the constant angle. Members can be connected at joints to form a group of struts, and multiple groups of struts can form a respective layer. A subsequent layer can be printed onto the top joints of the preceding layer's groups of struts. The filaments can be 2mm diameter borosilicate glass filaments. This can also be adapted to Alumina and ceramic filaments and even metals using laser or arc heating.

The invention provides a system (1) for fluid manipulation, wherein the system (1) comprises a first liquid supply (10), a second liquid supply (20), a microfluidic device (100), a cavitation induction system (200), and a control system (300), wherein: the first liquid supply (10) is configured to provide a first liquid (15) to the microfluidic device (100); the second liquid supply (20) is configured to provide a second liquid (25) to the microfluidic device (100); the microfluidic device (100) comprises a hosting chamber (110), wherein the hosting chamber (110) has a chamber length (L) defined by a first chamber end (111) and a second chamber end (112), wherein the hosting chamber (110) has an average equivalent circular diameter (D) perpendicular to the length (L), wherein L ≥ 3*D; wherein the cavitation induction system (200) is selected from the group comprising a laser-based heating system, an electric discharge system, and a heater; and wherein the control system (300) is configured to control the first liquid supply (10), the second liquid supply (20), and the heating system (200), and wherein the control system (300) has an operational mode wherein: in a preparation stage the first liquid supply (10) and the second liquid supply (20) are configured to provide a liquid multilayer (400) in the hosting chamber (110), wherein the liquid multilayer (400) comprises n layers (450) sequentially arranged along the chamber length (L), wherein n ≥ 2, wherein adjacent layers (450) are distinct phases, and wherein the layers (450) comprise a first liquid layer (415) comprising the first liquid (15) arranged adjacent to a second liquid layer (425) comprising the second liquid (25); and in a cavitation stage the cavitation induction system (200) is configured to induce cavitation of the first liquid (15) at a first location (41), wherein the first location (41) is arranged in the first liquid layer (415).

This invention relates to the field of spinning technology, and more particularly to a needleless electrospinning device with localized laser heating. The device includes a high-voltage generator, a laser generator, a solution tank, a fiber generator, a liquid supply device, a drive assembly, and a collector. The fiber generator is rotatably connected to the solution tank. The high-voltage generator is connected to the drive assembly, which in turn drives the fiber generator. The laser generator emits a laser beam. The collector corresponds to the fiber generator. The liquid supply device is connected to the solution tank. This invention uses the laser beam from the laser generator to fix or scan and irradiate a limited area at the edge of the fiber generator. By utilizing the rotation of the fiber generator, the liquid film sequentially passes through an unheated cold zone, a hot zone irradiated by the laser beam, and a re-cooling zone after leaving the irradiated area, thereby constructing a "cold-hot-cold" spatiotemporal temperature gradient. This improves temperature control and enhances the quality of the spun fibers.

A drying unit (10) for drying an electrode (1) comprising: - a first vacuum infrared heating chamber (2), having a first inlet slot (21) and a first outlet slot (22) allowing the electrode to pass through the first heating chamber, this first heating chamber being intended to heat the passing electrode to a first target temperature; - a second vacuum laser heating chamber (3), having a second inlet slot (31) and a second outlet slot (32) allowing the electrode to pass through the second heating chamber, the second inlet slot being opposite and contiguous to the first outlet slot, this second heating chamber (3) being intended to heat the passing electrode (1) to a second target temperature higher than the first target temperature. Figure for the abbreviation: Fig. 1

The application relates to the technical field of laser heating, and discloses an energy recycling mode and equipment based on laser heating, which comprises a laser module, a TEC refrigerating sheet arranged on the surface of the laser module, a heat dissipation fin connected to the surface of the TEC refrigerating sheet, a heated object additionally arranged on the surface of the heat dissipation fin, and a cold surface and a hot surface formed on the surface of the TEC refrigerating sheet, wherein the cold surface and the hot surface of the TEC refrigerating sheet are tightly combined with the laser module and the heat dissipation fin respectively; in the equipment, the cold surface of the TEC refrigerating sheet is tightly combined with the heat generation area of the laser module, efficient heat conduction between the two can be realized, after the TEC refrigerating sheet is synchronously started, the cold surface can quickly absorb a large amount of heat generated when the laser module works, the laser module is quickly cooled, the laser module can be ensured to be maintained at a preset working temperature, and the laser module can stably output laser according to the preset optical power.

A coiling machine includes a laser heating machine configured to irradiate a wire formed into a helical shape with laser light to thereby heat a part of the wire, and cutting components configured to cut a portion of the wire after the irradiation of the laser light is stopped, a temperature of the portion being higher than before irradiated with the laser light.

This invention provides a riveting process and equipment for ultra-high strength materials. A laser beam is controlled to irradiate a point on the riveting portion of the sheet metal. A rotating light guide component drives the laser beam to rotate in a ring around the riveting portion of the sheet metal, forming a ring-shaped heating zone that softens the riveting portion. Simultaneously, a pressing component applies axial pressure to the sheet metal to perform a pressing operation, causing the riveting portion to deform and flow to the fastener's riveting position to complete the riveting. This invention uses a point laser beam to convert into a ring-shaped laser beam, achieving precise local softening of the riveting area of ​​the sheet metal. This solves the problem of high difficulty in pressing ultra-high strength sheet metal in existing technologies. The pressing operation is performed simultaneously with continuous laser heating, achieving synchronization of heating and pressing, significantly improving production efficiency. Furthermore, after local softening, reliable pressing of ordinary strength fasteners and ultra-high strength sheet metal can be achieved. The sheet metal recovers its original strength after heating and self-cooling, without affecting the overall reliability of the connection.

The application provides a single-tube laser automatic tin soldering packaging equipment, a laser clamp assembly is used for clamping and positioning a laser tube shell, a pigtail clamp assembly is used for clamping a pigtail and coupling with the laser tube shell, a tin soldering feeding assembly is used for continuously feeding tin wires to a packaging position, and a heating assembly is used for heating and melting the tin wires at the packaging position; the heating assembly comprises a laser heating assembly and an electric eddy current heating assembly, the laser heating assembly is used for generating laser to rapidly melt the tin wires fed by the tin soldering feeding assembly, and the electric eddy current heating assembly is used for generating electric eddy current to make the temperature field of the packaging position uniform; on the basis of automatically completing the coupling of the pigtail and the laser tube shell, the application can also automatically perform the feeding, heating and melting, filling, welding and fixing of the tin wires; the heating assembly cooperates the laser and the electric eddy current heating to ensure the rapid melting of the tin wires after being fed, the uniform maintenance of the temperature field after the filling and the welding of the packaging position, and the welding quality.

This invention discloses an automated PVB film precision cutting and lamination production line, relating to the field of laminated glass production technology. It includes a first transport structure, a second transport structure, a third transport structure, and a fourth transport structure. The first transport structure is equipped with a detection mechanism, an automatic alignment structure, and a defective product pushing mechanism. A first servo module is used to transport the upper glass sheet, and a second servo module is used to transport the precision-cut PVB film. These components, along with a lifting assembly and a suction cup assembly, achieve alignment and lamination with the lower glass sheet. The second transport structure has a laser heating end and is equipped with a laser precision cutting robot to enable on-site cutting and use of the PVB film. This automated PVB film precision cutting and lamination production line operates within a cleanroom, automatically aligning and positioning the glass, performing clean online precision cutting, and automating the entire lamination process. It solves the problems of low manual efficiency, easy shrinkage and deformation of the film, and poor cutting accuracy, saving on cleanroom equipment costs. It features a high degree of automation, stable lamination quality, and is suitable for large-scale, efficient production of PVB laminated glass.

A method of overhaul of a component includes comparing a component to reference data to provide additive manufacturing data. Depositing material on the component using an additive manufacturing device based upon the additive manufacturing data to provide a first object. The depositing of material includes initially depositing a first material having a relatively high melting point, and then depositing a second material which has a melting point lower than the relatively high melting point of the first material. The depositing step further including heating the first and second materials with a laser to sinter the materials to the component. Putting the component into the furnace for a heat cycle. Then determining predicted characteristics of the first object, and comparing the predicted characteristics of the first object to the reference data to provide machining data. Then machining the first object using the machining data. A system for overhauling a component is also disclosed.

The present application relates to a drying apparatus, a control method, a control apparatus, a device, a storage medium, and a program product. The drying apparatus comprises a laser, the laser being disposed outside a drying oven, and being configured for emitting, according to current laser power, a laser beam to a beam-homogenizing lens assembly located within the drying oven and corresponding to the laser; the beam-homogenizing lens assembly is configured for processing the laser beam so as to obtain a homogenized laser spot irradiated onto a coating layer of a substrate; a pyrometer, the pyrometer being disposed within the drying oven and configured for measuring a temperature of the coating layer and sending the temperature to a controller; and the controller, which is electrically connected to the laser and the pyrometer and configured for controlling laser power of the laser according to the temperature, so as to control the temperature of the coating layer by controlling the laser power of the laser, thereby lowering the likelihood of excessively high temperatures during coating layer drying processes, and increasing safety during coating layer laser heating processes.