PCB wave soldering is a highly effective and precise method of assembly

PCB wave soldering is the process where the electronic components are attached to PCB or printed circuit boards. This is done by melting solder, which uses the help of waves to form permanent electromechanical bonds. The procedure starts in the oven, where the board passes through a pot of molten solder via an inclined conveyor belt. The pump placed beneath the conveyor belt generates a wave-like motion of molten solder. When the wave crashes onto the surface of the PCB, the parts are soldered.

This method is most often used in a through-hole printed circuit board assembly process, but it is not limited to it. The process happens in a wave soldering machine consisting of a heated solder pot maintaining a continuous recirculating wave of liquid solder within a tank. A highly efficient method was developed by Albert Hanson. He was a brilliant German inventor who also introduced to the world the idea of drilling holes in the board. That was the beginning of the through-hole assembly technique most often used in today’s circuits.

As the technology advanced, it became more convenient to apply solder paste instead of using a soldering iron to solder each component. Even though it may not seem at first glance, wave soldering machines ensure consistency and precision, which excites electronic manufacturing companies.

Printed circuit board assembly process – How does it work?

Electronic manufacturing companies use this method to ensure high-quality lead-free PCB assembly requirements. For us to create a state-of-the-art product, well-prepared documentation is paramount. To make the product you wish, we will need Gerber files, pick and place files, a bill of materials and testing protocol. The protocol is needed only if you require final testing of PCBs. Components for the printed circuit board assembly process can be supplied by us or by you. We always provide the electronic components to their exact designations. If some of them are not in stock or are not available for an extended period, we will recommend an alternative solution.

The procedure of PCB wave soldering consists of four steps – flux application, preheating, wave contact and cooling down. In the first step, we apply the chemical cleaning agent. Solder flux helps avoid oxidation of the copper traces when exposed to air. That is a crucial step in assuring the PCB operates reliably and consistently. Once solder flux has been applied, we heat the underside of the board to a high temperature (80 – 100 °C). The reason for this step is that flux is mixed with a solvent that reduces its viscosity and makes the application process more manageable.

The solvent is a flammable organic compound which evaporates when exposed to the heath. During this stem, the board proceeds over various infrared heaters with a heat-reflecting panel behind them. Due to this, the solvent air is removed faster, and the thermal energy is conserved. The PCB then moves through a solder wave that emerges through a vertical conduit and maintains a temperature of 250 °C. The board then goes through a cool-down step, which must be gradual to achieve the best results.

PCB wave soldering functionality test shows how successful the process

The printed circuit board assembly process is a necessary part of modern technology that effectively supports and connects electronic components using conductive traces, pads or pathways. The complicated procedure has allowed all types of electronic devices to develop immensely. We believe electronic manufacturing companies must inspect and test the product. That is why we developed groundbreaking testing devices and measurement protocols.

Functionality test allows us to examine, review and pay close attention to the calibration of PCBs. With a quality functionality test, we are sure the circuit boards our customers order work 100%. PCB wave soldering may guarantee high-quality assembly, but through manufacturing, we noticed the devices are becoming more visible. That guided us to create a modern and visually appealing design of a PCB.

Electronic manufacturing companies must deliver value throughout the entire process

Electronic manufacturing companies have a big responsibility toward their clients. Our company has a long tradition, and we always strive for longevity and quality. Once we noticed the market needed a circuit that would endure high humidity, extreme temperatures, vibrations and dust – we went to work. Our coating services, secure attachments, and applied encapsulation materials ensure additional protection. While we are experts in the printed circuit board assembly process, we provide our clients with much more.

Working with us guarantees you a dedicated team of manufacturing experts who have experience creating circuits for various industries – from automotive, gambling, aviation, aerospace, signalling and medical, to name a few. Our PCB wave soldering and other processes are precise, priced at an affordable rate and finished promptly. We ensure we deliver value throughout the entire product.