Preheating before PCBA soldering is the process of heating circuit boards and components before performing soldering operations. The purpose of preheating is to reduce thermal shock and thermal stress during the soldering process in order to avoid problems that may cause damage to the board and components.
Preheating can be accomplished through the use of specialised preheating equipment or heat guns. During the preheating process, the temperature is gradually increased and is usually controlled within a specific temperature range to ensure that the boards and components are able to adapt to the temperature changes during the soldering process.
