Brief description of hot air reflow soldering

- Dec 05, 2017 -



The hot-air reflow soldering furnace transmits heat energy through the laminar motion of hot air, the use of heaters and fans, so that the furnace air heating and circulation, to be welded pieces in the furnace heated by hot gas, so as to achieve welding, hot-air reflow furnace with heating uniformity, temperature and stability of the characteristics of PCB, The temperature gradient of the lower and the long direction of the furnace is not easy to control and is not used alone.

Since the 1990s, with the continuous expansion of SMT applications and further miniaturization of components, equipment manufacturers have improved the distribution of heaters, air circulation flow, and increase the temperature to 8, 10, so that it can further accurately control the temperature distribution in the furnace, more convenient for the ideal temperature curve adjustment. All hot air forced convection reflow soldering furnace after continuous improvement and improvement, has become the mainstream SMT welding equipment.