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

Wave soldering refers to the melting of soft brazing material (lead-tin alloy), through the electric pump or electromagnetic pump jet into the design requirements of the solder wave, can also be formed by injecting nitrogen into the solder pool, so that the printed board pre-equipped with components through the solder wave, to achieve the mechanical and electrical connection between the component welding end or pin and the printed board welding pad. Wave soldering systems can be divided into many types depending on the geometry of the wave used by the machine.

Wave soldering process flow

Wave soldering process flow chart

I. Single-machine wave soldering process

1, components forming a PCB stick resistance welding lead tape (as needed) -- --, instrumentation components, PCB loading welding fixture - coated - preheating --, wave soldering flux - cooling - remove the PCB - tear resistance welding tape - 2 - inspection - - L weld inspection - cleaning - - - - - into the special transport box;

2, PCB solder resist tape - loaded template - instrumentation components --, blister - cut feet down the PCB - from the template - pack PCB welding fixture - coated - preheating --, wave soldering flux - cooling - remove the PCB - tear blister film and resistance welding tape repair welding inspection - - - - - cleaning - - Inspection - Put into special shipping box.

Second, on-line wave soldering process

Mount PCB welding fixture on -- - coated artificial instrumentation components --, preheating, welding flux - cold to mouth -- --, brush cut cut the feet crumbs --, spray flux - preheating --, wave soldering - cooling - cleaning - to PCB from welding machine - a test --, repair welding inspection - cleaning - - - - - Enter the special transport box.

The reflow soldering process is to achieve the mechanical and electrical connection between the surface assembly component welding end or pin and the printed board welding pad by re-melting the paste soft brazing material pre-allocated to the printed board welding pad.