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Wave soldering operation and setup points
2023 / 10 / 24
Wave soldering is a common electronic assembly process, the following are the operation and setup points of wave soldering: 1. PCB Preparation: Make sure the PCB surface is clean and free of any dirt, grease or debris. It can be cleaned with a board washer or cleaning solvent.Reflow Soldering 2. Preheating: Place the PCB in a preheating device that can be set for temperature and time in advance. The purpose of preheating is to heat up the PCB and solder paste to ensure that the paste can be completely melted during the soldering process. 3. Solder Adjustment: Adjust the temperature, method and speed of soldering according to the soldering requirements. Usually, solder with lower melting point is used for wave soldering.SMT Machine 4. Wave height setting: According to the welding requirements and component size, set the appropriate wave height. Wave height is too high or too low may lead to unsatisfactory soldering quality. 5. Brush Soldering Flux: Brush the appropriate amount of soldering flux on the wave crest area, the soldering flux helps in the wetting and fluidity of the soldering process. 6. operation parameter settings: set up the wave soldering equipment operating parameters, including preheating time, wave temperature, transfer speed and so on. These parameters need to be set according to the specific welding requirements and component characteristics of the adjustment. 7. component install
Common sense and precautions for maintenance of SMT machines
2023 / 10 / 18
SMT (Surface Mount Technology) that is, surface mount technology, is an electronic component mounting technology, commonly used in the manufacture of electronic products. Here are some common sense and precautions about SMT machine maintenance: 1. Regular Cleaning: Regular cleaning is the key to keep the SMT machine running properly. Dust and impurities should be removed from inside and outside the machine on a regular basis, especially in critical areas such as the machine's conveyor belts, sensors and cameras. Use appropriate tools and cleaners for cleaning.Tin Melting Furnace 2. Keep the environment tidy: SMT machines should be installed in a dry, tidy environment and kept away from disturbing factors such as dust, chemicals and static electricity. Should also ensure that the working area is well ventilated to maintain the normal heat dissipation of the machine. 3. Regular lubrication: Some parts in the SMT machine require regular lubrication to ensure their proper functioning. According to the manual of the machine, know which parts need to be lubricated and choose the appropriate lubricant for lubrication.SMT Machine 4. Regular Inspection and Maintenance: Perform regular inspection and maintenance of machine components to ensure they are in proper working condition. This includes checking conveyor belt tension, calibrating sensors and cameras, inspecting and replacing worn parts, etc.Welding Robot 5. Training and technical support: Provide operators with the necessary training to ensure that they understand the
Common High Quality Automatic Spot Welder Features
2023 / 09 / 07
High-quality automatic spot welders are automated machines used to weld metal workpieces with high efficiency, precision and reliability. They are commonly used in electronics, automotive, aerospace, etc. for welding circuit boards, metal components and assemblies, etc. Here are some common features of high quality automatic spot welders: 1. Precise control and stability: High-quality automatic spot welders use advanced control systems and precise arc control for precise weld process control and consistent weld results. This ensures consistent quality and strength of the weld.Wave Soldering 2. Fast and Efficient: Automatic spot welders are capable of completing a large number of welding tasks in a short period of time, greatly improving productivity. They typically feature a high-speed impact head and fast arc start and stop.SMT Machine 3. Versatility and flexibility: some high-quality automatic spot welders have a variety of welding modes and functions, such as spot welding, pulse welding, pressure welding, etc.. They can also be adapted to different materials and welding needs, and provide flexible parameter adjustment and programme settings.Welding Robot 4. High-quality welds: Automatic spot welders provide high-quality weld results with uniform seam shape, low distortion and high-strength connections. They often
There are several main types of SMT machines
2023 / 08 / 04
SMT machines are automated equipment used in Surface Mount Technology (SMT) to mount surface mount components on electronic circuit boards.Wave Soldering SMT machines are mainly of the following types: 1. Pick and Place Machine: Pick and Place Machines are the most common type of SMT machine used to accurately remove SMDs from a feeder and precisely place them in a designated location on a circuit board. Pick and Place Machines typically use a vision system and/or a mechanical position control system for positioning to ensure proper placement.Reflow Soldering 2. Reflow Oven: A reflow oven is used to solder SMDs that have been placed on a circuit board. In the reflow oven, the board passes through preheating, soldering and cooling stages to achieve a reliable soldering between the SMD and the board. Soldering ovens typically use hot air flow or infrared heating to achieve soldering.Welding Robot 3. Wave Soldering Machine: Wave soldering machines are used to batch solder traditional plug-in components (Through-Hole Components). In the wave soldering machine, the circuit board through the solder wave, so that through-hole components connected to the circuit board. 4. Screen Printer: A printing machine is used to accurately print solder paste onto the pads of a circuit board. The p
The development trend of wave welding
2023 / 06 / 02
Wave soldering is a traditional surface mount technology for electronic components, and with the further development of science and technology, wave soldering is also constantly being developed in the following directions:Wave Soldering 1. welding speed to enhance: with the requirements of production efficiency, wave welding equipment needs higher excitation frequency and transmission speed to meet the shorter production cycle. The automatic build-up of soldering irons and specialised chemistry devices for material change can further improve the productivity of wave soldering.Reflow Soldering 2. Low-temperature soldering: conventional wave soldering requires heating components to high temperatures, with the risk of overheating and damaging the device. As a result, wave soldering technology is moving towards low temperature heat treatment to provide better protection for electronic components.Tin Melting Furnace 3. High-precision soldering: Taking into account the influence of organisation and the improvement of data feedback in advance from the design level, these computer simulation techniques provide information on the physical structure with high precision, while enhancing training in quality management and data visualisation. 4. Integration and intelligence: As technology develops, wave welding equipment will become increasingly intelligent, from equipment component
Introduction to reflow soldering
2023 / 05 / 27
Reflow soldering is a soldering method mainly used in surface mount technology, which is used to complete the soldering of electronic components by controlling parameters such as heating, cooling and airflow. Compared with traditional manual soldering, reflow soldering has the advantages of high speed, good quality of solder joints and low soldering costs, and is therefore widely used in the electronics manufacturing industry.Wave Soldering The principle of reflow soldering is to use the high temperature airflow and temperature in the reflow oven to solder the components on the printed circuit board (PCB) to the PCB. Reflow ovens usually consist of a heating zone, a holding zone and a cooling zone, where the heating zone can reach temperatures of 200°C to 300°C and the holding and cooling zones have corresponding cooling control systems to ensure the quality of the component solder joints and the stability of the board. In the reflow process, the solder paste is heated to a liquid state, then connected to the board via the solder pins on the components and cooled to a solid solder joint.SMT Machine The specific process of reflow soldering is as follows: Firstly, the solder pins on the PCB need to be coated with solder paste, usually using printing techniques to process the paste into the required size and shape, and then the electronic components are pasted onto the PCB. This process is usually carried out by a machine, which is much more efficient than doing it manually and avoids operational errors.Welding Robot
How the tin melting furnace works
2023 / 05 / 20
A tin melting furnace is a piece of equipment used to melt tin from a solid state to a liquid state for subsequent processing and utilisation. This article will focus on the working principle, advantages and application scenarios of tin melting furnaces, as well as on their maintenance and servicing measures and troubleshooting methods.Wave Soldering I. Principle of operation The tin melting furnace consists of a series of electrical control systems and heating elements. The material is fed from the top, melted by the heating elements and then flows into a holding cylinder below the furnace. Through the precise control of the heating elements and the appropriate holding time, the tin melting furnace can precisely control the melting temperature and the purity of tin.Reflow Soldering II. Advantages Compared to other types of melting equipment, tin melting furnaces offer the following Welding Robot advantages: High efficiency: The fast melting speed of the tin melting furnace can significantly shorten the production cycle. Energy saving: The tin melting furnace uses advanced heating technology and control systems to effectively reduce energy consumption. Low cost: Tin melting furnaces are less costly than other types of melting equipment and are suitable for small and medium-sized enterprises. Environmental protection: The tin melting furnace is free of smoke, dust and harmful gas emissions, which is
Introduction to wave soldering
2023 / 05 / 11
Wave soldering is a common electronic soldering technique that is widely used in the field of surface mount technology (SMT). This soldering technique allows electronic components to be soldered securely on a printed circuit board (PCB) and can improve the quality and reliability of the board. In wave soldering, electronic components are passed over a PCB with electroplated tin and soldered in waves of molten tin.Wave Soldering The wave soldering machine works by heating the tin wire until it melts and causes a wave of liquid tin to form on the surface of the PCB. During this process, the electronic components are held on the PCB surface and their wave solder pads come into contact with the tin wave, which then fuses with the tin under the action of the heat. Once the tin has completely cooled and cured, the electronic components are attached to the PCB surface. Such a soldering method is often used to mount large electronic components such as sensors, transformers, electrolytic capacitors, batteries, etc.Reflow Soldering The advantage of wave soldering is that it results in an even temperature distribution in the soldering area and can be done in a shorter time. In contrast to other SMT technologies, wave soldering is usually carried out in batches, so it is suitable for production lines that require high throughput. In wave soldering, the soldering process is completed in a closed stroke, so it improves the quality of the solder by reducing the ingress of oxygen and other interfering substances.Welding Robot In wave soldering, the solder often used is a rounded
2023 / 04 / 22
Wave soldering is a common electronic manufacturing process used to solder components on a circuit board to the board. Wave soldering mainly uses solder bars, whose main material is tin.Tin Melting Furnace In the wave soldering process, the soldering surface of the circuit board is in direct contact with the high-temperature liquid tin for the purpose of soldering. High-temperature liquid tin maintains a sloping surface, and by a special device to make liquid tin to form a wave-like phenomenon, forming a wave soldering.SMT Machine The main advantage of wave soldering is that it enables efficient, high-precision soldering and stable operation at high temperature, high pressure and high speed. As a result, wave soldering has become one of the most important parts of the electronics manufacturing process.Plug-in Machine Wave soldering is a common surface assembly technique that is commonly used in the assembly process in the electronics industry. Wave soldering is a soldering process in which a hard solder is applied to a solder joint on a circuit board by preheating it to a liquid state, then passing it through a wave through the circuit, and then applying pressure to cure it on the joint. This technique allows for efficient and reliable assembly of circuit components, with advantages in terms of good quality solder joints, strong joints, and speed. Wave soldering is usually an automated,
The advantages of wave soldering process are mainly as follows:
2023 / 04 / 15
1. Save labor and materials, improve production efficiency and reduce costs. 2.Improve the quality and reliability of solder joints. Eliminate the interference and influence of human factors on product quality.Wave Soldering 3, short production time. Wave soldering process allows the contact time between the solder and the printed circuit board to be significantly shortened.Reflow Soldering 4.Simple production process. The drive system that transports the printed circuit board only moves in a straight line, making the manufacturing process simple.Welding Robot 5.Low consumption of auxiliary materials. The wave soldering process automatically positions the spraying and spraying of solder and has an adjustable spraying port design, reducing power and consuming auxiliary materials by 25% compared to the same period of time. Wave soldering is equipped with an adjustable isolation air knife to isolate flux from entering the preheat box, ensuring production safety. Wave soldering refers to the production process of electronic products, the circuit board components are mounted to the pads one by one, and through high-temperature heating to make them fixed together in the process. Wave soldering is an important part of the manufacturing of elect
2023 / 03 / 31
Wave soldering technology is a high-quality, high-efficiency welding technology, which is widely used in automotive manufacturing, electronic appliances, aerospace and other fields. Wave welding is an electric arc welding method, its welding process, the workpiece to apply a certain pressure, the melt through the role of magnetic field to form a circular arc particle flow, so that the workpiece of the metal welded to produce fusion. Wave welding is mainly used for welding of highly conductive materials such as aluminum, copper, magnesium and nickel. Its main feature is a high current density and frequency during the welding process, so that the surface of the workpiece can be melted quickly to form a fine and uniform weld. Wave welding technology is based on the development of electro-sensitive welding technology. It uses an AC power source to generate high-frequency current, so that the welding rod heats the workpiece through an electric arc, thus melting the welded material and achieving the purpose of welding. Wave welding is mainly through the principle of magnetic line induction heating, so that the molten metal quickly flow and uniformly distributed throughout the weld seam.Welding Robot Wave welding technology is mainly used in the welding of highly conductive materials such as aluminum alloys, magnesium alloys and nickel alloys. In fields such as automotive manufacturing and aerospace, it is often necessary to weld these materials, and the use of traditional welding methods does not wo
First, the principle of wave soldering
2023 / 03 / 20
Wave soldering is a kind of melting welding. The principle is to generate a strong arc through the electrode, heat the metal material to the melting point, and add the molten welding material (welding wire) between the metal, so that it is cooled in the molten state, and finally form a strong welding iron. The essence of wave crest welding is a kind of enhanced cut arc welding, that is, when the metal is melted, the material is stripped and cleaned through the arc force, so as to achieve high quality weld effect.Plug-in Machine Two, wave welding process The wave crest welding process mainly includes the following links:SMT Machine 1. Workpiece preparation: Before wave soldering, the welding parts need to be thoroughly cleaned and treated to ensure that there are no impurities and stains in the welding parts. 2. Contact between electrode head and workpiece: After the contact of welding site, electrode head acts as the controller of welding point and moves the welding point to the required position. 3. Electrode head charging: The process of electrode head charging is an important part of the generation of strong arc, the arc generated by it can be heated to the welding part to the melting point in a short time, so as to form a uniform molten pool. 4. Add the welding wire: after the welding wire is melted, the welding wire is introduced into the welding pool for cooling through the arc, so as to make the weld become strong and achieve high q
SMT Machine consists of what parts?
2023 / 02 / 28
SMT Machine consists of what parts? For the operation of the chip machine many people just contact is not too well understood, some old chip machine operators on the chip machine various parts at the same time is also know half, so it is easy to appear to lead to system failure, the following by the small to everyone to introduce the analysis of the chip machine of the various important components parts, so that can help more people reasonable operation of the chip machine. One, the host 1. main power switch: turn on or off the mainframe power. 2, visual display: display China moves a lens to analyze the image obtained or components and marks of the identification development. 3. operation display: display machine operation of the VIOS software screen, if in the process of operation errors or problems, also in the screen to display correction information. 4. Warning light: indicates the technical conditions of operation when the automatic bonder is in green, yellow and red. Green:the machine is in automatic operation Yellow: error (return to the origin between can not be effectively executed, picking error, identification system failure, etc.) or interlocking equipment generated. Red:Machine is in emergency stop (when the machine or ypu stop button is pressed) Emergency stop
Wave Soldering Precautions for setting
2023 / 02 / 25
Wave Soldering Precautions for setting 1.Increase the preheat temperature Wave soldering connection, reflow oven preheat zone temperature should be higher than the preheat temperature of tin / lead alloy reflow. Usually about 30 ℃ higher, at 170 ℃ -190 ℃ (the traditional preheat temperature is generally 140 ℃ -160 ℃) to improve the preheat zone temperature is to reduce the peak temperature to reduce the temperature difference between components. 2.Extend the preheating time Appropriately extend the preheat preheat time, preheat too fast on the one hand will cause thermal shock, is not conducive to reducing the formation of peak reflow temperature of the shirt, the temperature difference between components. Therefore, the appropriate extension of the preheat preheat time, so that the temperature of the soldered components smoothly rise to the intended preheat temperature. 3, extend the reflow area trapezoidal temperature curve Extend the reflow area trapezoidal temperature curve. While controlling the highest reflow temperature, increase the width of the reflow zone temperature curve, extend the peak time of small heat capacity components, so that the size of the heat capacity of the components to achieve the required reflow temperature, and to avoid overheating of small components. 4.Adjust the consistency of the temperature curve Test
Welding robots Intelligent and diverse
2023 / 02 / 23
Welding robots Intelligent and diverse The welding process parameters of the welding robot are easy to adjust and can be set directly to the process parameters. At the same time, the robot has internal calculation formulas to automatically adjust the current and voltage. In the robot welding process, the welding parameters of each weld are constant, and the quality of the weld is less affected by human factors, thus reducing the requirements for workers' operating skills. The development direction of specialization of welding robots is reflected in the field of specialized robots. The robot's functions are highly directional, solving specific problems in specific environments, even for specific welds. Both the form and function of the robot are designed and defined based on a specific role scenario. The development of these robots is different from the development of general-purpose robots in that they are not all-inclusive but specialized, and all functions are related to specific application environments.Reflow Soldering In addition to traditional position, speed and acceleration sensors, some welding robots also use laser sensors, vision sensors and force sensors, and achieve automatic tracking of weld seams and automatic positioning of objects on automated production lines and precision assembly operations, which greatly improves the operational performance of robots and their adaptability to the environment. It has great
Advantages and principles of welding robot
2023 / 02 / 21
1.Faster speed The adoption of a lightweight arm and high rotation of the small motor makes zui high speed and acceleration to obtain a substantial increase, by integrating the weight of the load so as to improve the acceleration performance and shorten the cycle time. 2.Small wrist with high torque The compact wrist can operate in a smaller space, and the high output torque improves the load capacity of the wrist and expands the range of shapes for gripping workpieces. 3.Wider range of motion By expanding the range of motion of each axis, the range of motion under the robot is expanded while the coverage range is improved, thus enabling an expansion of the operating space. 4.Better adaptability to the environment The new double-sealed waterproof socket is adopted for each joint of the welding robot, and the protection level of the wrist part has been improved. About working principle. The electrical control system of the welding robot is generally composed of relays, PLC programmable controller, microcontroller, CNC system and computer. The electrical control system mainly controls the clamping and positioning of the fixture, the start and stop of the welding machine, the movement of the welding gun or workpiece, the access of the conveyor, etc. It includes automatic/ma
What are the advantages of reflow soldering
2022 / 12 / 14
In terms of reflow soldering, it can help our production skills, so precisely why is it called reflow soldering and what are the advantages of reflow soldering? Why is called reflow soldering Originally solder paste is a mixture of metal tin powder, flux and other chemicals, but the tin can be said to be very small tin beads exist independently, when after reflow soldering furnace equipment, after several temperature zones of different temperatures, in more than 217 degrees Celsius, those small tin beads will melt, after the catalyst of flux and other items, so that the countless small particles melt into one, that is, so that those small particles back to the flow of liquid state. That is to say, so that those small particles back to the flow of liquid state, this process is often referred to as reflow, reflow means that the tin powder from the previous solid state back to the liquid state, and then by the cooling zone and back to the solid process. What are the advantages of reflow soldering 1, reflow soldering the entire system are dedicated to the use of a family of industrial control equipment, reflecting the good stability and compatibility, reliability, as well as improve the anti-interference of the entire system, so that the system can run well. 2, reflow soldering temperature control using a full range of dynamic thermostatic energy storage plate device to reduce the temperature differential effect in the temperature zone; while using double-sided temperature supply technology, can reduce and prevent PCB board bending deformation phenomenon. 3, reflow soldering with automatic detection function, can automatically detect the operation of the chain, and ultra-high and low temperature sound and light alarm function. 4.Reflow soldering adopts imported N2 flow meter, through
Wave soldering even tin causes and treatment methods
2022 / 10 / 13
Wave soldering tin is an electronic product plug-in production of wave soldering through common problems, mainly because of the cause of wave soldering tin many reasons, if you want to adjust the wave soldering to reduce the tin, you must find out the reason for the wave soldering tin. Magee Automation below to share the reasons and processing ideas. Reasons for wave soldering: 1, the flux preheating temperature is too high or too low, generally at 100 ~ 110 degrees, the preheating is too low, the flux activity is not high. The preheating is too high, the flux of the tin steel is now gone, and it is easy to connect the tin; 2, there is no flux or the flux is not good or uneven, the surface tension of the tin in the molten state is not released, resulting in easy tin; 3, check the temperature of the tin furnace, control at about 265 degrees, zui good use a thermometer to measure the temperature of the peak when the peak is up, because the temperature sensor of the device may be at the bottom of the furnace or other locations. If the preheating temperature is not good, the component will not be able to reach the temperature, and the welding process will cause the tin to drag poor due to the large heat absorption of the component, and the formation of continuous tin; It may also be that the temperature of the tin furnace is low, or the welding speed is too fast; 4, regularly
What is wave soldering and what are the advantages of the wave soldering process
2022 / 09 / 15
Wave soldering is a relatively complex process, if any link goes wrong, it will affect the quality of wave soldering. So, what is wave soldering and what are the advantages of the wave soldering process? What is wave soldering and what are the advantages of the wave soldering process 1. What is wave soldering Wave soldering refers to the molten solder (lead-tin alloy), which is sprayed by an electric pump or an electromagnetic pump into a solder wave as required by the design. It can also be formed by injecting nitrogen into the solder pool, so that the pre-installed components are printed The board passes through the solder wave crest, forming a solder peak of a specific shape on the solder liquid surface, and the PCB loaded with components passes through the solder wave crest at a certain angle and a certain immersion depth to realize the soldering process of the solder joint. called wave soldering. Second, the advantages of wave soldering process 1. Save labor and materials, improve production efficiency and reduce production costs. 2. The circuit board has a short contact time with high temperature soldering, which can reduce the warping deformation of the circuit board. 3. Eliminate the interference and influence of human factors on product quality, and improve the quality and reliability of solder joints. 4. The solder of the wave soldering machine is fully active, which is conducive to improving the quality of solder joints. 5. Due to the use of a good exhaust system, th
What is reflow soldering and what are the functions of reflow soldering
2022 / 09 / 13
Reflow soldering is the most important process technology in T. The quality of reflow soldering is the key to the reliability of A. It directly affects the performance reliability and economic benefits of electronic equipment, and the quality of soldering depends on the soldering method, soldering material and soldering process used. Technology and welding equipment. So, next, Xiaojin will tell you what is reflow soldering and what are the functions of reflow soldering? What is reflow soldering Reflow soldering is one of the three main processes in the T-mount process. Reflow soldering is mainly used to solder circuit boards with components mounted. The solder paste is melted by heating so that the patch components and the circuit board pads are fused and welded together, and then the solder paste is cooled by reflow soldering to cool the components and The pads are cured together. However, most people understand that reflow soldering machine, that is, reflow soldering is a kind of machine completed by welding components on PCB board. It is a very wide application at present. Basically, most electronics factories will use it. To understand reflow soldering, you must first understand the **t process. Of course, it is soldering in popular terms, but reflow soldering provides a reasonable temperature during the soldering process, that is, the furnace temperature curve. The role of reflow soldering The function of reflow soldering is to send the circuit board with the SMD components installed into th
2022 / 09 / 09
Wave soldering is a method by which large printed circuit boards can be soldered quickly and reliably during PCB assembly.Wave Soldering The wave soldering process gets its name from the fact that the process enters the printed circuit board through the wave of solder to be soldered. In this way a complete board can be welded in seconds while producing joints that are reliable, mechanically and electrically. In addition to being much faster than hand soldering, wave soldering also produces a higher degree of reliability of the joint. Wave soldering can be used in PCB assemblies for both conventional through-hole mount components as well as surface mount components. However, other methods such as infrared reflow soldering are more suitable for surface mount assemblies with fine features on printed circuit boards used today. wave soldering A wave soldering machine consists of a heated pot of solder. This is maintained at the temperature required for the soldering process. Inside the groove, the solder wave builds up and the PCB crosses so that the underside of the board just touches the solder wave. Note that this must be taken into account when adjusting the height of the wave so that it does not flow on the top side of the board where it would cause solder to enter where it is not needed. The board is held in place using a metal finger conveyor belt. These are usually made of titanium because it is able to withstand the temperature and it is not immune to solder.
In the process of wave soldering, the tin bar will produce tin dross, how to deal with it?
2022 / 08 / 01
There are many factors that affect wave soldering. The content of tin slag during wave soldering is too high. First of all, it is necessary to distinguish whether the composition of tin slag is correct. If the tin slag is in the form of black powder, it is normal. One of the solder products, tin bars can be divided into two types: lead-free tin bars and lead tin bars. They are both used for arc welding. The following is a summary of the reasons for you: 1. The peak value is too high, the peak value is too wide, the double-peak furnace is too close, choose a rotary pump. 2. The soldering temperature is generally low, which can generally be divided into 280°C ± 5°C (for lead-free SN-CU0.7 tin rods), the welding rod is the Z basic temperature required in the welding process, and the low temperature will lead to tin Too much slag. 3. Human relationship, it is also very important to add tin bar when appropriate. The appropriate tin bar is to shorten the distance between the tin surface and the peak as much as possible each time tin is added. 4. The tin slag should be removed frequently, and the solder falling from the peak should enter the furnace as quickly as possible, instead of being left on the tin slag. The uneven heating will also cause excessive tin slag. 5. It is also very important to use the tin-clearing furnace in general. The tin-clearing furnace is not clear for a long time, and the impurity content in the furnace is high, which is also one of the reasons for the formation of excessive bean-like tin slag.
Daily operation specification of lead-free reflow soldering machine
2022 / 07 / 28
Daily operation standard of lead-free reflow soldering machine: 1. When overhauling the machine, shut down the power supply to prevent electric shock or short circuit. 2. The lead-free reflow soldering machine should check the parts on a daily basis, and pay special attention to the fact that the conveyor belt cannot be stuck or fallen off. 3. The temperature measurement equipment cannot be in a high temperature state for a long time. After each temperature measurement, the temperature measurement equipment should be quickly pulled out of the furnace cavity to avoid deformation. When the heating is stopped in individual temperature areas, you should check the corresponding fuse first, and pay attention to high temperature during operation. To avoid burns, open the furnace body during the cooling mode to check whether there is foreign matter in the furnace cavity, and then close the furnace body. 4. Start the lead-free reflow soldering machine to check whether the sound of the hot air motor is abnormal. Check whether the conveyor belt is normal during transportation. Ensure that the kneading and jamming phenomenon ensure that the chain and each sprocket are well engaged and derailed. Check the lubrication status of each roller bearing. If abnormality is found, immediately Press the emergency stop button to prevent equipment damage. Lead-free reflow soldering 5. The operator regularly checks, protects and records the reflow solder
How to control costs in lead-free wave soldering
2022 / 07 / 22
Many manufacturers of electronic products are actively transitioning from lead-based soldering to lead-free soldering. Now, through a lot of practical experience, it is shown that it is necessary to improveThe quality of lead-free wave soldering should be considered from many aspects such as equipment, materials and processes. All this must be considered is how to reduce costs. In the tunnel-type nitrogen-filled environment, the incidence of tin dross has dropped by about 80%, and the annual savings can reach as much as 300,000-1.6 million yuan. The whole process of nitrogen filling technology can improve the welding quality. The whole process of nitrogen filling technology not only reduces the operating cost, but also greatly improves the welding quality. Because the surface tension of liquid solder in lead-free wave soldering is larger than that of tin-lead solder, the fluidity is poor, and the wetting ability is low. Therefore, in the wave soldering of through-hole components, the metallized holes of multi-layer printed circuit boards are lead-free. The filling and climbing ability of the solder is very poor, which directly affects the strength and reliability of the solder joint. Lead-free reflow soldering
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