In the electronics industry, there are wave soldering and manual soldering for software materials in PCBA processing. Then, what are the differences between these two soldering methods and what are the advantages and disadvantages?
Next, XPCB Limited will give you an introduction.
1. The welding quality and efficiency are too low
- Due to the application of high-quality intelligent electric soldering irons such as ERSA, OK, HAKKO and Quick, the welding quality has been qualitatively improved, but there are still some factors that are difficult to control. For example, the control of the amount of solder in the solder joints and the wetting angle of the solder, the control of soldering consistency, and the requirements for the tin-through rate of the metallized holes, etc. Especially when the component leads are gold-plated, it is necessary to remove gold and enamel tin before soldering on the parts that need to be soldered. This is a very troublesome thing.
- Manual soldering also has human factors and other disadvantages, which make it difficult to meet high-quality requirements; for example, as the density of circuit boards and the thickness of circuit boards increase, the heat capacity of soldering increases, and soldering iron soldering can easily lead to insufficient heat. The climb height of solder or through-hole solder does not meet the requirements. If the soldering temperature is increased excessively or the soldering time is prolonged, it is easy to damage the printed circuit board and cause the pad to fall off.
- The traditional manual soldering iron soldering requires a lot of people to use point-to-point soldering on the PCBA. Selective wave soldering uses the mode of applying flux first, then preheating the circuit board/flux, and then using a solder nozzle for soldering. It adopts an assembly line industrialized batch production mode. Welding nozzles of different sizes can be used for batch welding of drag welding, and the welding efficiency is usually dozens of times higher than that of manual welding.
