Automatic selection of welding technology

1. In the process of industrial production, the commonly used automatic welding equipment of THT process is dip welding machine and wave soldering machine. In terms of welding technology, this kind of welding belongs to flow welding, which is the welding completed by wetting through the relative movement of molten liquid solder and welding object.

2. Reflow welding is a welding method in SMT era. It USES paste solder, through the template or drop method coated in the circuit board pad, paste components after heating, solder fusion flow again, wetting the welding object, after cooling to form a solder spot. Soldering SMT circuit boards, wave soldering can also be used. SMT is made of the SMT adhesive used for wave soldering and the solder paste used for reflow soldering. The typical equipment of SMT welding process is the welding flow line composed of reflow welding furnace, welding paste printing machine and SMT mounter.

3, automatic welding also use flux automatic coating equipment, cleaning equipment and other auxiliary devices, SMT automatic welding general process includes: PCB, CMC/SMD preparation → components installation → coating flux → preheating → cooling → cleaning.

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