Electronic components that have leads coming out and are inserted through tiny holes in the PCB for soldering are called thru-hole (Manual Insertion / Auto Insertion ) electronic components. The assembly or soldering process for these components include wave soldering .Wave Soldering – A PCB assembly process in which solder in the form of solder bar are put in a high-temperature bath. This solder remains in the bath in molten form and forms a wave at very high temperature. 260 ~270 degree Celsius. The range of temperature depends on the type of solder. Traditional tin / lead (Sn/Pb) solder has lower melting point than lead-free (Pb-Free) solder. The PCB with all the thru-hole electronic components in holes is passed over molted solder with a help of a conveyor. The whole wave soldering process includes following steps:

  • Inserting of electronic components
  • Flux application
  • Preheat
  • Cleaning
  • Testing

Once the wave soldering is done, the PCBA is cleaned and tested. If any fault or solder joint is found, it is sent for rework, which is generally done by hand. Hand Soldering – Hand soldering is done in manufacturing units with less work load or in rework / repair jobs. A good quality soldering station or soldering iron and solder wire and flux are used in the process. We serve both RohS and Non -RohS process.