The function of the wave soldering machine is to weld the electronic components of the active pin to the electronic welding production equipment on the circuit board. Its working principle is that the melted solder (lead tin alloy) is sprayed into the solder wave required by the design through the electric pump or electromagnetic pump, so that the printed circuit board with components installed in advance can pass the solder wave to realize the mechanical and electrical soldering between the solder end or pin of components and the pad of printed circuit board.

Wave soldering machine is a common equipment in electronic production enterprises. Generally speaking, it is mainly used to solder the electronic components of plug-in after the electronic circuit board. In the process of double wave soldering of printed circuit board and single wave soldering of SMC circuit board, the wave soldering machine with liquid solder is needed. The soldering of wave soldering machine mainly refers to that the molten solder (lead tin alloy) is sprayed into the solder wave required by the design by electric pump or electromagnetic pump. It can also be formed by injecting nitrogen into the solder pool, so that the printed circuit board with components in advance can pass the solder wave to realize the soldering of mechanical and electrical connection between the solder end or pin of components and the pad of printed circuit board. Depending on the geometry of the wave used by the machine

Wave soldering machine is mainly used in traditional through-hole plug-in PCB assembly process, and mixed assembly process of surface assembly and through-hole plug-in components. Surface mount components suitable for wave soldering process include rectangular and cylindrical chip components, sot and smaller SOP. At present, there are several commonly used wave soldering machines: desktop wave soldering machine, double wave soldering machine, small wave soldering machine and lead wave soldering machine. Its production process is as follows: insert the component into the corresponding component hole → precoat flux → pre dry (temperature 90-1000c, length 1-1.2m) → wave soldering (220-2400c) → cut off the redundant plug-in pins → check.