SuZhou Tonkida Electromechanical Technology Co., Ltd Professional SMT whole line supplier

The application of lead-free reflow welding is also more and more extensive, and the application generally uses the function of nitrogen protection, hot air circulation, upper and lower infrared heating. What are the performance characteristics of lead-free reflow welding?

1. Lead-free reflow welding has a smaller transverse temperature difference due to its higher temperature than lead reflow welding;

2, lead-free reflow cooling device and flux management system than lead reflow welding more perfect;

3, the lead-free reflow furnace used by the track should be hardened and other special treatment, and the metal seam through X-ray scanning to confirm that there are no cracks and bubbles. The chamber of the lead-free reflow furnace shall be fabricated from a single sheet metal. In this way, it can withstand higher reflow temperatures without deforming the furnace and guide rails;

4, the transmission system of lead-free reflow welding equipment has a better vibration-free structure design to avoid the generation of disturbed solder joints;

5, lead-free reflow furnace sealing requirements are higher than lead reflow welding;

6. The thermal insulation performance of lead-free reflow is higher than that of lead reflow;

7, lead-free reflow pumping system than lead reflow more perfect.