Pulse heat unit is an equipment used for soldering of electronic components or welding of plastic components. It consists of a reflow head, which holds down the component and applies the force, and a pulse heat power supply, which flows the electric current.
Pulse heat is an instantaneous heating method whereby heating is effected only when melting the solder or the plastic. Solder or plastic is melted by the resistance heat generated by flowing electric current to a heater tip/heater tool made of metal. Once the material is melted, electric current is stopped and cooled. Because the object is held down with pressure until it is solidified, there is no lifting or shifting of parts, and as a result, highly reliable joining can be achieved.