In the electronic manufacturing industry, PCB surface mounting and welding is an important process of electronic manufacturing. The welding process mainly includes reflow welding and wave soldering. Reflow welding is the welding of SMT components, and wave soldering is the welding of through-hole components. Today, we focus on understanding the characteristics of wave soldering process and wave soldering equipment requirements.

   Compared with reflow welding process, there are more factors affecting the welding quality of wave welding, and the process parameters are more complex, so the technical requirements of wave welding equipment are relatively higher. In addition to the design of PCBA itself, raw materials, solder and flux, the performance of wave welding equipment and the setting of process parameters also have a very important influence on the welding quality.

History of Suneast wave welding technology

   Suneast technology is one of the earliest domestic enterprises who research and develop and produce wave soldering equipment. Since the 1990s, we have been committed to the research, development and production of wave welding imported equipment localization, from the day of the first Suneast wave soldering equipment, after 30 years of development, it has completed dozens of iterations, technology upgrade and nearly 20 times; on average, there is a new product launch less than two years, and it is the domestic wave soldering technology development leader.

The characteristics of Suneast wave soldering equipment

   Suneast wave soldering machine adopts modular structure design, convenient for production, installation and maintenance. Steel frame + tempered glass appearance, high overall precision, good sealing, can effectively prevent the smell from spreading out to the workshop. The transport system adopts the direct connecting structure, special stainless steel chain, equipped with heavy double hook finger conveying, smooth feeding, and smooth conveying. The guide rail adopts segmental floating structure design to prevent the guide rail from deformation.

   The flux spraying module adopts vertical spray type, the flux penetrability to the through hole is stronger, effectively improve the welding through-rate, the automatic path optimization system can save 20% flux. The preheating module adopts drawer type modular design, can flexibly choose the mixed preheating mode (infrared or hot air, flexible combination), the temperature is uniform and stable, fit for different PCB preheating requirements, to achieve the best preheating effect. Temperature control adopts PID control mode, the temperature control precision up to ±2℃. The solder pot is made of special cast iron material, the surface is anticorrosive treatment, and the width of the solder pot nozzle can be adjusted according to the width of PCB, so as to effectively reduce the solder oxidation (patent no. : 200920137701.4), the solder pot in/out/up/down can be adjusted manually or by electric, easy to operate.

   Suneast wave soldering equipment is well known for stable and durable, low oxidation and reliable welding quality, the welding spot appearance is bright, full, and good welding consistency, simple operation, low energy consumption, and save welding labor.

Follow the trend, continue to optimize, take the initiative to change!

   With significant advantages in technology and service, Suneast wave soldering equipment has been widely used in household appliances, power supply, computer, consumer electronics, communications, automotive electronics and other industries, the market share is always rising. At the same time, Suneast technology closely follows the market development orientation and terminal technology upgrade, constantly optimize and improve product design, take the initiative to change, create new intelligent equipment to meet customers' higher needs, and strive to promote the optimization and upgrading of the electronic industry.