363results about "Heating appliances" patented technology

The invention discloses a micro-scale tin soldering device and method for ultrasonic laser composite energy field coordinated regulation and control. The micro-scale tin soldering device comprises a coordinated energy output module, a multi-physical field monitoring module, a wire feeding module, an intelligent regulation and control system and a motion platform, and a workpiece to be welded is arranged on the motion platform; the collaborative energy output module comprises a laser unit, an ultrasonic vibration unit and a focusable focus lens, the ultrasonic vibration unit comprises an ultrasonic generator, and the multi-physical field monitoring module comprises an infrared thermometer, a high-speed holographic imaging system and an acoustic impedance sensor; the high-speed holographic imaging system is used for recording brazing filler metal molten pool flowing and IMC nucleation dynamic states; the acoustic impedance sensor monitors the ultrasonic energy transmission efficiency; the intelligent regulation and control system is electrically connected with the multi-physics field monitoring module, and a multi-physics field coupling prediction model based on an LSTM neural network is arranged in the intelligent regulation and control system. According to the technical scheme, the structural design is reasonable, the energy field coupling efficiency is high, the material adaptability is high, the structure performance is controllable, the defect rate is remarkably reduced, and practicability is good.

The invention relates to the technical field of infrared temperature measurement, provides a soldering tin temperature closed-loop control method and system based on infrared temperature measurement feedback, and solves the problems that a temperature measurement result of a phase change critical region seriously deviates from a true value, and temperature measurement is not accurate due to the fact that material state changes are not considered. According to the method, the environment temperature of a welding area and the initial temperature measurement value of soldering tin in the welding process are detected, and soldering tin phase change emissivity data are obtained; the real-time state of soldering tin is determined, and the soldering tin temperature after calibration is obtained by combining the soldering tin phase change emissivity data and the environment temperature; comparing the calibrated soldering tin temperature with the phase change temperature interval to obtain a temperature comparison result, and combining the temperature comparison result with the calibrated soldering tin temperature to obtain an adjusted heating power parameter; and the soldering tin heating device is controlled to heat soldering tin according to the adjusted heating power parameters until the calibrated soldering tin temperature within the preset target temperature range is obtained, high-precision real-time calibration and dynamic closed-loop regulation and control over the soldering tin temperature are achieved, and it is ensured that the welding process is stably within the target temperature range.

The invention discloses an automatic brazing device based on graphite rod indirect heating and a brazing method thereof, and relates to the technical field of precision part welding. The automatic brazing device comprises a high-frequency induction heating system, a graphite rod heating body, a temperature closed-loop control system, an automatic transmission and positioning system and a rapid cooling system; the automatic transmission and positioning system is used for clamping and moving a workpiece, the high-frequency induction heating system and the rapid cooling system are sequentially arranged along the moving path of the workpiece, a graphite rod heating body is arranged in an induction field and is subjected to induction heating, and the temperature closed-loop system monitors the temperature of the graphite rod heating body in real time and feeds back and controls the power of the induction field. And the rapid cooling system is arranged at a downstream station of the high-frequency induction heating system and is used for carrying out forced cooling on the welded workpiece. Rapid local heating, precise temperature control and instant cooling can be achieved, and therefore the elastic performance of a workpiece is effectively protected while the welding quality and efficiency are improved.

The three-blade straight knife automatic welding equipment comprises a supporting frame, a workbench and a bottom plate are fixed to the supporting frame, and two fixing mechanisms are fixed to the workbench through turnover mechanisms; a clamping groove used for containing a tray is formed in the bottom plate, and the tray is used for containing a knife handle, a blade and a tool. A solder supply mechanism and a first mechanical arm are fixed to the upper side face of the workbench. A second mechanical arm is fixed to the lower side face of the workbench. A mounting frame is fixed on the workbench; a camera is fixed on the bottom plate; and a heating coil is fixed on one welding flux supply mechanism. According to the automatic welding equipment and method for the three-blade straight knife, firstly, an automatic mode is adopted, the quality and efficiency are improved, secondly, the double-station parallel design is adopted, the production takt is optimized, in addition, a positioning mechanism in the fixing mechanism can ensure the relative relation between a blade and a knife handle, and finally, a reliable grabbing point is provided through the tool design, so that the production efficiency is improved. Therefore, the cutter is prevented from being damaged.

The utility model discloses a local heating thermocompression welding device which comprises a machine frame, an infrared heating system, a convex lens, a mechanical arm and a suction nozzle, the infrared heating system, the convex lens, the mechanical arm and the suction nozzle are installed on the machine frame, the machine frame is provided with a die bonding platform used for placing a substrate, and the infrared heating system is located below the die bonding platform and used for heating the bottom of a bowl cup of the substrate. The convex lens is located between the infrared heating system and the die bonding platform, the convex lens can refract infrared light emitted by the infrared heating system to the bottom of the substrate bowl cup, the suction nozzle is installed at the end of the mechanical arm, and when the temperature of the heating area is increased to a set value, the mechanical arm swings and sucks a single chip to the center of the substrate bowl cup through the suction nozzle and squeezes the single chip. The infrared heating system is an infrared heat source and can be heated at a high speed within seconds, the production efficiency is improved, infrared light can be focused through the convex lens, the heating area of a heating area is changed, heating of a single chip is achieved, the problem of thermal light attenuation of the chip caused by long-time heating is avoided, and the chip is not prone to being damaged in the hot-pressing die bonding process.

The utility model discloses a miniature tin dipping machine, which relates to the field of tin dipping machine structures and comprises a base, a two-shaft transplanting device arranged on the base, a hot tin device arranged on the base, a tin dipping device arranged on the two-shaft transplanting device and above the hot tin device, and an electric control device arranged on the base. The control device is electrically connected with the two-shaft transplanting device, the hot tin device and the tin immersion device; according to the micro tin dipping machine, automatic control of the micro tin dipping machine is achieved through the electric control device, so that the tin dipping efficiency is improved, meanwhile, parameter consistency in the tin dipping process can be achieved, and then the stability of the tin dipping quality of products is improved.

Welding equipment for aluminum profile machining relates to the field of aluminum alloy door and window production and machining and comprises a welding mechanism, the welding mechanism comprises a welding furnace assembly, a hot melting assembly and an electric heating assembly, and the hot melting assembly and the electric heating assembly are both arranged in the welding furnace assembly. The welding furnace assembly comprises a furnace body and a heating chamber, the heating chamber is arranged in the furnace body, a heat insulation lining made of insulation materials is arranged on the inner wall of the heating chamber, the hot melting assembly comprises a heating coil, the heating coil is arranged in the middle of the inner wall of the heating chamber, and the electric heating assembly comprises electrode sleeves arranged at the two ends of the heating chamber. The butt joint position of the aluminum profiles is heated to be close to the melting temperature through the hot melting assembly in the welding mechanism, then the two aluminum profiles are connected with a power source through the electric heating assembly, the contact position of the two aluminum profiles is further heated and melted due to short circuit of a circuit, the welding faces at the two ends of the aluminum profiles can be fully fused and welded, and the welding quality is improved. The welding position of the aluminum profile is more sufficient, and the welding quality is improved.

The invention relates to an element temperature control method for forming a welded or sintered connection between elements, in which at least one controllable heat source is provided for providing thermal energy to the elements. Measuring a first temperature of the element or the component of the welding or sintering device in thermal contact with the element in a non-contact manner at at least one first temperature point by means of at least one first temperature sensor in thermal contact with the element or the component of the welding or sintering device; a second temperature of the element or a component of the soldering or sintering device in thermal contact with the element is measured in a non-contact manner at at least one second temperature point by means of the at least one second temperature sensor, the first temperature point being spatially farther from the second temperature point such that, upon a change in temperature, the temperature of the element or the component of the soldering or sintering device is measured in a non-contact manner. A temperature gradient is expected to occur between the first temperature and the second temperature. The measured second temperature is calibrated based on the measured first temperature to determine a calibrated second temperature, and the heat source is controlled based at least on the calibrated second temperature. The invention also relates to a correspondingly configured welding or sintering device.

The invention relates to the technical field of hot working equipment, and provides a local temperature-controllable brazing furnace system and a method for welding a water cooling plate and a side cooling plate thereof.A furnace body with the front portion, the rear portion and the top portion capable of being opened and closed is arranged for welding, in this way, closed welding is conducted, the external environment is blocked, and the furnace body is heated through twelve linear silicon carbide rods; nitrogen is introduced outside the furnace body by arranging a copper pipe, the nitrogen is preheated by the copper pipe and enters the furnace, the temperature is uniform, and it is guaranteed that the oxygen content of the furnace body is smaller than or equal to 18 ppm; when the brazing furnace is used for welding a water cooling plate and a cold measuring plate, a welding tool is installed on the support in the furnace body, then a welding piece is installed on the tool, then the furnace body is closed, gradient heating is conducted, nitrogen is introduced for welding, and air cooling is conducted after welding is completed. Aiming at industrial pain points such as non-uniform high-frequency welding temperature and performance degradation of a non-welding area caused by integral heating of a tunnel furnace, a physical isolation and dynamic temperature control fusion technology is developed, and accurate temperature control of the welding area is realized.

The utility model belongs to the technical field of hot presses, and particularly relates to a multi-section pressure control hot press which comprises a hot press body, a lower hydraulic cylinder hot pressing portion on the lower side of the hot press body is arranged in a foundation pit, and a main guide column upwards extending out of the foundation pit is arranged on the lower hydraulic cylinder hot pressing portion. An upper hydraulic cylinder hot-pressing part on the upper side of the hot press body is arranged on the upper side of the main guide column, a mold plate which ascends and descends in the axial direction of the main guide column is arranged on the main guide column, and a mold is jointly extruded by the lower hydraulic cylinder hot-pressing part and the upper hydraulic cylinder hot-pressing part outside a foundation pit. The hot pressing parts driven by the hydraulic cylinders are installed at the upper end and the lower end of the hot press, when hot pressing is carried out, the hydraulic cylinders on the upper side and the lower side apply force oppositely to extrude a mold between the hydraulic cylinders, and in the process, pressure can be continuously supplemented and maintained for circulation; and the upper hydraulic cylinder and the lower hydraulic cylinder with different parameters can be matched with each other, so that the pressure value can be flexibly and accurately adjusted.

The utility model provides a precise circuit board paster high-speed welding tool, which relates to the technical field of electronic processing, and comprises a welding base, a high-speed welding assembly is arranged on the outer side of the welding base, a longitudinal electric lead screw is arranged on the inner side of a left guide frame, a driven supporting rod is welded on the inner side of a right guide frame, and the driven supporting rod is arranged on the outer side of the welding base. A longitudinal sliding rod is connected between the longitudinal electric lead screw and the driven supporting rod, a transverse support is welded to the lower side of the longitudinal sliding rod, a transverse electric lead screw is installed on the lower side of the transverse support, and a transverse sliding block penetrates through the middle of the transverse electric lead screw. The high-speed welding assembly and the electric control hydraulic rod drive the temperature controller and the welding needle to ascend and descend, so that the welding height can be automatically adjusted through an external computer, accurate temperature control and accurate positioning of a welding point are achieved, high efficiency and quality of the welding process are guaranteed, and the laser pointing device points to the welding point of the welding needle all the time.

The application discloses a fuse tinning device and method, wherein the fuse tinning device comprises a fuse melting substrate placing rack for placing a fuse melting substrate; a tin strip placing rack for placing a tin strip; the tin strip placing rack is arranged above the fuse melting substrate placing rack; a flux pool for storing flux; a flux roller is further arranged above the flux pool, and the flux roller applies flux to one side of the tin strip which faces the fuse melting substrate when the tin strip passes through the surface of the flux roller; a pressing roller is further arranged behind the flux pool, and the pressing roller presses the tin strip coated with flux and the fuse melting substrate; a reflow oven is further arranged behind the pressing roller, and the reflow oven fuses the tin strip and the fuse melting substrate by adjusting temperature; and a winding device is further arranged behind the reflow oven, and the winding device winds the tin strip and the fuse melting substrate after fusion.

The invention relates to a semiconductor metal target automatic welding line which comprises a truss mechanical arm, a feeding platform, a heating platform, a welding platform, a pressure maintaining platform, a dislocation mechanism platform and a material carrying platform. The robot is used for coating welding flux on a target material and a back plate, cleaning the welding surfaces of the target material and the back plate and assembling the target material and the back plate, and a truss manipulator is arranged to replace a worker, so that the target material, the back plate and a target material and back plate assembly are automatically transferred among the platforms; the robot is arranged to realize automatic cleaning and welding of the target material and the back plate; the heating platform is arranged to accurately control the temperature of the target material and the back plate; the pressure maintaining platform is arranged to accurately control the magnitude and time of pressure applied to the target material back plate assembly; by means of the structure, automatic welding of the target material and the back plate can be achieved, meanwhile, various parameters in the welding process are accurately controlled, manual operation is reduced, and the stability of product quality is improved.

The utility model provides a semiconductor bonding wire equipment clamp which comprises a first mold and a second mold, the upper surface of the first mold is fixedly connected with a heating block, and the upper surface of the second mold is fixedly provided with a pressing plate. The heating block is designed to be made of frosted breathable materials. The bottom face of the pressing plate is designed to be a continuous pressing line, and a line pressing type structure is formed. The heating block and the pressing plate are arranged, the heating block is designed to be a frosted breathable material instead of an original vacuum hole design, the problem that the size and position design of the vacuum hole is poor can be effectively solved, the compatibility is high, the bottom cannot be suspended, and it is guaranteed that the frame is stable; the pressing plate is changed into a linear pressing structure from an original point pressing structure, the surface of the frame can be contacted to the maximum extent, the existing design is easy to machine, convenient to use and not prone to abrasion in the using process, pressing can be guaranteed, cost is saved, and working efficiency is improved.

The present disclosure discloses a reflow oven for processing a circuit board, the reflow oven comprising a heating zone having a plurality of heating sub-zones, in which the plurality of heating devices are arranged in corresponding heating sub-zones of the plurality of heating sub-zones, and each of the plurality of heating devices is configured such that a working temperature of the corresponding heating sub-zone is in a predetermined temperature interval; a start-stop device configured to activate or deactivate the plurality of heating devices, and configured to activate and deactivate the plurality of heating devices according to predetermined time intervals in a process during which the circuit board sequentially passes through the plurality of heating sub-zones, such that a working temperature of each of the plurality of heating sub-zones is in a corresponding predetermined temperature interval.

A press-forming device for forming individual solder bodies from a wire of soldering material includes a press-forming mechanism and a separation means. The press-forming mechanism forms a continuous strand of preformed solder sections from the wire by using two notched rollers that rotate in opposite directions and that press opposite notches into the wire. The preformed solder sections are disposed equidistantly along the strand and are connected to each other by connecting links disposed at the notches. The separation means forms individual solder bodies by separating the preformed solder sections one by one at the connecting links. The separation means separates individual preformed solder sections using a cutting mechanism that moves in a direction perpendicular to the length direction of the strand. Individual solder bodies are transported to a solder jetting section where they are liquefied by a laser beam and jetted from the solder jetting section by gas pressure.

The application discloses a shunt welding device and a welding processing method thereof and a computer readable storage medium, wherein the shunt welding device comprises a machine body, a heating mechanism and a temperature measuring mechanism, a welding space is formed in the machine body, the heating mechanism and the temperature measuring mechanism are arranged in the welding space, the machine body is provided with a vacuum pumping mechanism, and the welding processing method of the shunt welding device comprises the following steps: starting the heating mechanism to heat the alloy resistance; controlling the temperature measuring mechanism to monitor the surface temperature of the alloy resistance; after the surface temperature of the alloy resistance reaches a preset welding temperature, moving an integrated circuit board to the alloy resistance and pushing the integrated circuit board towards the alloy resistance so that the welding sites of the integrated circuit board and the alloy resistance are correspondingly welded in contact; and starting the vacuum pumping mechanism to form a vacuum environment in the welding space. The technical scheme aims to improve the production efficiency and the production qualified rate of the shunt welding device.

The application relates to the technical field of product hot-pressing equipment, and provides a graphene product hot-pressing equipment capable of automatically feeding and discharging, which comprises a main body assembly, a disc changing module installed in the main body assembly, a moving and carrying module, a hot-pressing mechanism and a material taking mechanism; wherein the main body assembly comprises a machine box and a workbench horizontally installed in the machine box; the disc changing module, the hot-pressing mechanism and the material taking mechanism are all installed on the top of the workbench; the hot-pressing mechanism and the material taking mechanism are both located on one side of the disc changing module and are arranged in parallel; the moving and carrying module is installed on the inner wall of the machine box and extends above the disc changing module and the hot-pressing mechanism; the device solves the problems of low automation degree of the hot-pressing equipment and folding of the flexible products during carrying; the disc changing module is arranged; the disc changing module carries out feeding and discharging operations according to the equipment operation condition, so that the purpose of alternately feeding and discharging is achieved.

The invention discloses a laser batten welding device and method, and belongs to the technical field of solid lasers. The laser batten welding device comprises a fixing frame, the fixing frame comprises a bottom plate and side vertical plates, a laser batten assembly is arranged on the fixing frame, a first heating block is arranged at the top of the laser batten assembly, a second heating block is arranged between the laser batten assembly and the bottom plate, the top of the first heating block abuts against a first pressing block, and the top of the second heating block abuts against a second pressing block. The side face of the laser batten assembly abuts against a second pressing block, and the first pressing block and the second pressing block abut against the bottom plate and the side vertical plate of the fixing frame through two spring limiting devices arranged on the side vertical plate and the bottom plate respectively. The laser batten welding device is simple in structure, easy and convenient to operate and capable of achieving rapid and high-quality welding of laser battens.

The application relates to the technical field of optical communication device production, in particular to an elastic solder and a high-precision active coupling welding method; the elastic solder has flexibility and deformation capacity; the elastic solder can keep flexible connection between a device to be welded and a substrate during coupling, and after the elastic solder is melted during welding, the elastic solder can fill the gap between the device to be welded and the substrate, so that the device to be welded is welded on the substrate. The elastic solder can keep flexible connection between the devices to be welded without affecting the coupling position, and the coupling precision is improved to the sub-micron level. During welding, the elastic solder can transfer heat from the substrate to the device to be welded, so that the device to be welded is prevented from being damaged due to overheating, and the yield is improved. The high-precision active coupling welding method has good compatibility and expansibility, and based on the method, existing mounting equipment can be modified, so that the equipment investment cost is reduced.

The disclosure relates to assemblies and methods for preheating objects in the process of underfill. Specifically, the disclosure relates to assemblies and methods for treating printed circuit boards (PCBs), integrated circuits (ICs) wafers and the like, in the preheating stage of the underfill process using an assembly operable to create a customizable hot-air bath with adjustable depth to account for surface topology and necessary clearances, for soaking the PCBs, ICs, wafers and the like in hot air, bringing these to operating temperature.

A heating device and a method for manufacturing a soldered object that have a relatively simple configuration and that suppress the occurrence of temperature unevenness within an allowable range in both the temperature rising process and the temperature maintaining process are provided. [Solution] The heating device 1 includes a support member 18 that supports an object to be heated, and a heater 20 that heats the object to be heated supported by the support member 18 or the support member 18 that supports the object to be heated. The heater 20 has multiple annular heating elements 20P, each with a different circumferential length and arranged in a nested configuration, and is capable of outputting different amounts of heat from one another, and the amount of heat output is changeable. A method for manufacturing a solder-joined object using the heating device 1 includes supplying the object to be heated to the support member 18, causing the heating elements 20P to generate heat and raise the temperature of the object to a first predetermined temperature, changing the output ratio of the heating elements 20P to maintain the first predetermined temperature, supplying a reducing gas, increasing the output of the heating elements 20P to raise the temperature to a second predetermined temperature, and performing solder bonding.

The present invention provides a simple method for joining stainless steel and copper or a copper alloy at low cost, the method being able to be carried out in the atmosphere. According to the present invention, Sn or an Sn alloy having an Sn content of 40% by mass or more is used as a joining metal. In the joining step, the copper or the copper alloy is heated by a heating device, and the stainless steel and the copper or the copper alloy are joined with each other by melting the joining metal while heating the stainless steel by means of heat transfer from the copper or the copper alloy. The highest temperature reached by the stainless steel is 350°C or less, and the residence time in the temperature range of 150°C or higher of the stainless steel is 5 seconds to 5 minutes inclusive.

The invention discloses a controller board tin soldering method, which comprises the following steps of S1, printing solder paste on a bonding pad of a PCB (Printed Circuit Board) by using a steel mesh to form a solder paste layer; s2, arranging a solder ring on the solder paste layer, wherein the inner diameter of the solder ring can allow a product pin to pass through; s3, the product is inserted into the PCB, and then the PCB is placed on a bearing table on the through hole reflow soldering equipment; s4, detecting vacancy information of the bearing platform and information of through holes in the PCB; s5, performing hole closing operation on the vacant bearing table and the through hole according to the detection information in the step S4; and S6, carrying out welding operation on the PCB loaded with the plurality of plug-in products by the through hole reflow soldering equipment. The invention discloses a controller board tin soldering device. Compared with the prior art, the problem that tin is insufficient in the welding process of the connector can be solved.

The utility model discloses a multifunctional welding positioner which comprises a base, a headstock positioner is arranged on one side of the base, a rail is arranged on the other side of the base, a tailstock positioner is arranged on the rail in a sliding mode, the tailstock positioner and the headstock positioner are symmetrically arranged on the same axis, and clamping assemblies are rotationally installed on the tailstock positioner and the headstock positioner. The clamping assembly can also vertically move on the headstock positioner and the tailstock positioner. The servo motor drives the lead screw to move up and down and drives the slewing bearing to turn over and rotate, so that the position and the angle of a workpiece can be quickly and accurately adjusted, and the welding work is more efficient and convenient. The motor and the rail are adopted for moving back and forth, the hydraulic system is adopted for hydraulic clamping and loosening of the headstock and the tailstock, and operation is simpler and more convenient. And meanwhile, the fixing and aligning precision of the position of the tailstock is further improved by using the positioning pin, so that the whole welding process is more stable and reliable.

The utility model discloses an anti-oxidation protection reflow soldering oven gas circulation device, which relates to the technical field of gas circulation and comprises an oven body, a fan is mounted at the top of the oven body, an air inlet channel is mounted at the top end of the oven body, an air outlet of the fan is communicated with the air inlet channel, and a plurality of branch pipelines are mounted in the oven body. The cleaning structure is arranged to clean the filter screen, and when gas passes through the treatment channel, the propeller type stirrer rotates under the action of gas flow, so that the cleaning brush is driven to clean the filter screen; according to the device, a filter screen is mounted and dismounted through the arrangement of a mounting structure, a plurality of pull rings are shifted inwards to drive a sliding block and a clamping block to face the inner end, and then a mounting ring is inserted into a treatment channel until the mounting ring moves to a groove corresponding to the filter screen or an activated carbon plate; and the clamping blocks can pop out under the action of the springs and are clamped into the grooves in the inner side wall of the processing channel, so that the mounting ring is fixed.

A heat treatment furnace apparatus according to an embodiment heats, when a metal plate is brazed to a ceramic substrate, at least one storage container made of stainless steel, in which a plurality of ceramic metal substrates are stored, to subject the plurality of ceramic metal substrates to a heat treatment at 600 degrees Celsius or more and less than 950 degrees Celsius. The heat treatment furnace apparatus includes: a heater provided outside a furnace body; a rail section that transports the storage container placed inside the furnace body; and a transport device that transports the storage container placed on the rail section in a predetermined transport direction along the rail section while moving the storage container in a direction perpendicular to the rail section.

The utility model discloses an electric soldering iron and hot air gun integrated device which comprises a handle, a heating assembly, a soldering bit and an air conveying cover, the soldering bit is detachable, the device has two modes, namely a hot air gun mode and an electric soldering iron mode, in the hot air gun mode, the soldering bit is detached, air is input into the air conveying cover through a draught fan, and the hot air gun mode and the electric soldering iron mode are combined. In the electric soldering iron mode, a soldering bit is installed, the soldering bit is heated through heating of the heating assembly, soldering tin is melted, and work is conducted. The utility model solves the problems that a traditional electric soldering iron and a traditional hot air gun device cannot quickly realize operation interchange, often two kinds of equipment need to be prepared at the same time and used alternately, tools are lost, and people often only have an electric soldering iron device and cannot meet the requirement for the hot air gun device in family use.

This utility model relates to the field of transformer manufacturing technology, specifically an automatic soldering device for surface-mount transformers. It includes a base, a solder bath fixedly installed on the rear side of the top of the base, and a cooling tank fixedly installed on the top of the base in front of the solder bath. A conveyor belt is positioned above the top of the base, in front of the cooling tank. This automatic soldering device for surface-mount transformers, through the coordinated use of a solder bath, servo motor, heating rod, stirring shaft, stirring roller, and temperature sensor, effectively controls and stirs the temperature of the molten solder in the solder bath. The temperature sensor monitors the molten solder temperature in real time, and by adjusting the power of the heating rod, the temperature of the molten solder can be precisely stabilized within a suitable process range. The servo motor drives the stirring roller to rotate, causing convection in the molten solder, resulting in a more uniform temperature distribution, preventing localized overheating or undercooling, ensuring consistent chemical composition, and significantly improving the fluidity of the molten solder.

The application provides an LED straight tube lamp, comprising: a lamp tube, the lamp tube comprising a diffusion coating covering the inner circumferential surface of the lamp tube; a lamp cap arranged at one end of the lamp tube; a lamp plate arranged in the lamp tube, the lamp plate being provided with a light source; a power supply, the power supply being in electrical communication with the light source through the lamp plate, the power supply comprising a circuit board and a power supply module arranged on the circuit board; the lamp plate is a flexible circuit board or a flexible substrate, the lamp plate having a part fixed on the inner circumferential surface of the lamp tube and a part located at both ends of the lamp plate and not fixed on the inner circumferential surface of the lamp tube, wherein the part not fixed on the inner circumferential surface of the lamp tube forms a free part, one end of the free part is deformed by being contracted towards the inside of the lamp tube, and the free part is directly welded to the circuit board of the power supply, the free part being an integral part of the flexible circuit board or the flexible substrate.