Cabling Installation & Maintenance’s Post

I really enjoy using the wave solder machine. Running a job on the wave is a straightforward process, and for us, wave soldering is an all-hands-on-deck kind of day. It's a great group activity that allows me to bond with my team and have some fun together. Here's our wave soldering process: Initially, the parts that cannot go through the wave or washing cycle are separated, and sections of the PCB that can't be immersed in solder are masked off. Then, through-hole parts are placed on the PCBs. Technicians stuff the PCBs with through-hole parts on a slide line, which works like a Henry Ford-style production line, where each technician stuffs a few parts and slides the board down to the next tech to do a few more, and so on. After that, the machine loader inspects the boards. If no parts are missing, the boards are loaded onto a chain with titanium fingers that hold the PCB. A flux sprayer, which is a paint sprayer attached to a stepper motor, is located at the entrance of the wave chain. The flux sprayer uses compressed air to atomize the flux and sweeps back and forth to evenly disperse the flux. The chain speed is set by how long you need the PCB to be immersed in a molten bath of solder, which is usually around 3-5 seconds. Once set, you work with that chain speed to set your top and bottom preheater temperature. The goal is to set your top and bottom preheat temperatures based on the speed of your chain to achieve a temperature of about 100 degrees Celsius on the top side of the PCB, and no less than a 100-degree Celsius difference between the bottom side and the temperature of the wave solder pot to minimize thermal stress when the PCB gets immersed. The picture in my post is one that I took while waiting for the boards to arrive at the end of the chain, where I would remove them, inspect, and touch up spots as necessary. If you want to learn more about our PCB assembly services, please feel free to message me on LinkedIn or visit our website at www.HenwayTech.com. Our team would love to build your boards!

I really enjoy using the wave solder machine. Running a job on the wave is a straightforward process, and for us, wave soldering is an all-hands-on-deck kind of day. It's a great group activity that allows me to bond with my team and have some fun together. Here's our wave soldering process: Initially, the parts that cannot go through the wave or washing cycle are separated, and sections of the PCB that can't be immersed in solder are masked off. Then, through-hole parts are placed on the PCBs. Technicians stuff the PCBs with through-hole parts on a slide line, which works like a Henry Ford-style production line, where each technician stuffs a few parts and slides the board down to the next tech to do a few more, and so on. After that, the machine loader inspects the boards. If no parts are missing, the boards are loaded onto a chain with titanium fingers that hold the PCB. A flux sprayer, which is a paint sprayer attached to a stepper motor, is located at the entrance of the wave chain. The flux sprayer uses compressed air to atomize the flux and sweeps back and forth to evenly disperse the flux. The chain speed is set by how long you need the PCB to be immersed in a molten bath of solder, which is usually around 3-5 seconds. Once set, you work with that chain speed to set your top and bottom preheater temperature. The goal is to set your top and bottom preheat temperatures based on the speed of your chain to achieve a temperature of about 100 degrees Celsius on the top side of the PCB, and no less than a 100-degree Celsius difference between the bottom side and the temperature of the wave solder pot to minimize thermal stress when the PCB gets immersed. The picture in my post is one that I took while waiting for the boards to arrive at the end of the chain, where I would remove them, inspect, and touch up spots as necessary. If you want to learn more about our PCB assembly services, please feel free to message me on LinkedIn or visit our website at www.HenwayTech.com. Our team would love to build your boards!

How to operate a high-speed punch press-Stamping Machinery

A.R.T. publishes new content covering hand soldering and rework best practices Advanced Rework Technology Limited https://lnkd.in/eExbk_E3 #soldering #handsolering #designengineering #manufacturing

Manual Soldering Problems in SMT Chip Processing Plants chip processing plants, some circuit boards or components need to be manually soldered for some reasons. SMT chip processing is a very important part of the electronic processing and production process. If it is manual soldering, Only by achieving the same effect as the placement machine can we provide customers with high-quality processing services. In SMT patch processing, there are usually three manual soldering methods for two-end leadless chip components: soldering one by one, welding with special tools, and fast chip welding with flat chip soldering iron tips. SMT processing factory shares the precautions for manual welding. 1. SMT patch processing. Check whether the absorbing sponge has water and is clean. If there is no water, please add an appropriate amount of water. 2. The human body and the soldering iron need to be grounded reliably, and the workshop operators of the SMT small-batch patch processing plant need to wear an electrostatic bracelet and be grounded. 3. Check whether the soldering iron is hot before starting the manual patch soldering. If it is not hot, first check whether the socket is plugged in. If it is plugged in, if it is not hot, report to the administrator immediately. Do not disassemble the soldering iron at will, let alone use it. Touch the tip of the soldering iron directly with your hand. 4. in the SMT patch workshop, the oxidized uneven soldering tip needs to be updated in time to ensure good heat conduction effect and circuit board soldering quality. The sponge used for welding needs to be cleaned. The contaminated sponge may contain metal particles or sulfur components, which will damage the soldering iron tip. https://lnkd.in/gjpbyNjt felicia@bangyangroup.com #ManualSolderingProblemsinSMTChipProcessingPlants #electronicassembly(PCBA) #inlineboardtestingfunctionaltestICprogramming #fabricationofprintedcircuiboards(PCB) #BOMsourcingcomponents #injectionmouldmoldingofenclosures

Develop good habits for manual welding, including visually inspecting PCB boards, using multimeters, and utilizing short circuit locators to prevent short circuits and ensure proper soldering techniques.#BGAchips #capacitors #PCBBoard #shortcircuit #Welding

The technical principle and operation steps of PCBA vapor phase cleaning The vapor phase cleaning of PCBA involves heating the solvent in a specialized equipment to vaporize it. Through the continuous evaporation and condensation of the solvent vapor, the printed circuit board workpiece being cleaned "sweats" continuously, thereby removing contaminants. This is a post-wave soldering cleaning method. To improve the cleaning effectiveness of PCBA, it is often used in combination with ultrasonic cleaning. I. Principle of Vapor Phase Cleaning The bottom of the vapor phase cleaning equipment is equipped with a heated immersion device and an ultrasonic cleaning tank. Around the upper wall of the cleaning tank, several circular cooling tubes are installed, forming a condensation temperature zone ring. When the solvent is heated to the vaporization temperature, it begins to evaporate and simultaneously evaporates onto the workpiece to be cleaned. As the solvent vapor rises to the position of the annular condensation tube, it condenses and falls onto the workpiece to be cleaned. Due to the purity of the solvent vapor, the continuous evaporation and condensation of the solvent vapor cause the workpiece to continuously "sweat" and carry away contaminants generated during SMT chip processing and post-chip welding. II. Process of Vapor Phase Cleaning ① Immerse the workpiece in heated cleaning solvent first to soften the contaminants. ② Perform ultrasonic cleaning to detach the contaminants from the surface of the workpiece. ③ Vapor phase cleaning, which is similar to a gas bath. The vapor of the solvent is very pure, and it continuously causes the workpiece to "sweat" and carry away contaminants through the continuous evaporation of the solvent vapor. ④ Rinse the workpiece with relatively clean cleaning solvent. ⑤ Finally, spray the workpiece with clean rinsing solvent. PCBA vapor phase cleaning equipment comes in both single-tank and multi-tank configurations. In a single-tank cleaning machine, the workpiece to be cleaned moves up and down, first being heated, immersed, and ultrasonically cleaned at the bottom of the cleaning tank. Then, the workpiece is lifted to the area between the immersion tank and the cooling tube for vapor phase cleaning. Finally, it is rinsed with clean cleaning solvent. In a multi-tank cleaning machine, the workpiece to be cleaned moves horizontally from the first tank to the last tank. In the first tank, it is heated, immersed, ultrasonically cleaned, and simultaneously undergoes vapor phase cleaning. In the second tank, it is rinsed (some equipment has three rinsing tanks). Then, the workpiece is lifted and sprayed with clean solvent. Finally, it dries naturally in a ventilated environment. Small batches tend to use single- or double-tank machines, while large batches utilize multi-tank machines. #pcb #pcba #HDI #PCBA #vaporphasecleaning

The technological process of wave soldering 1. PCB preparation Firstly, it is necessary to prepare the PCB for wave soldering. This includes cleaning the PCB surface, ensuring there is no dirt or oxide, and setting the accurate position of the solder pads. 2. Component installation Install electronic components on the PCB. This includes inserting the pins of the components into the corresponding pads. Before inserting the pins, they can be pre treated for electrostatic protection and heat resistance. 3. Power transmission preheating Send the PCB with installed electronic components into the wave soldering equipment. The device will use the preheating area to heat the PCB, ensuring temperature control during the soldering process. 4. Formation of tin wave peaks After the preheating zone, the solder begins to melt and form solder peaks. The melting temperature of solder is set according to specific welding requirements. 5. Wave soldering Slowly pass the PCB through the soldering peak area through the transmission device. After the pin comes into contact with the solder, the solder will surround the pin to form a solder ball and create a soldering area on the solder pad. This process usually lasts for a few seconds. 6. Cleaning and inspection After completing wave soldering, it is necessary to clean and inspect the PCB. Cleaning can remove residues and oxides generated during the welding process. Inspection can ensure the quality of soldering and good connection between pins and pads. Wave soldering is a commonly used electronic assembly technique used to connect electronic components (such as resistors, capacitors, chips, etc.) to solder pads on a PCB.

Ensuring good surface wettability is crucial for successful soldering, with precise solder joint positioning and meticulous quality inspections throughout the PCB assembly process being essential.#contactangle #solderjointpositioning #solderspread #surfacewettability #visualinspection

Classification of PCBs and various inspection standards used for PCB quality assurance. Inspection methods include visual, electrical performance, technological performance, and metalized via inspection.#PCB