Introduction to PCBA assembly and welding

Pcb assembly china generally use the following two welding methods when PCBA assembly and welding :

Method 1: Reflow soldering is a process method used to solder electronic components and PCB boards. In reflow soldering, the PCB board with attached components is placed in the reflow soldering furnace, and the solder is melted and cooled to solidify through heating and cooling processes, thereby firmly connecting the components with the PCB board. Reflow soldering requires controlling parameters such as temperature and time to avoid issues such as poor soldering or virtual soldering.

Method 2: Wave soldering is a process of soldering electronic components and PCB boards using a wave shaped molten solder. In wave soldering, a pump is used to pass the molten solder through a narrow channel to form a wave shape, allowing components and PCB boards to be soldered at the wave peak. Wave soldering requires controlling the temperature and flow rate of the molten solder to ensure welding quality and consistency.

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