source:Industry News release time:2022-10-15 Article author:yu Popular:pcb
1, PCBA processing single surface assembly process: solder paste printing - patch - reflux welding;
2, PCBA processing double-sided surface assembly process: A side printed solder paste - patch - reflow welding - flip plate - B side printed solder paste - patch - reflow welding;
3, PCBA processing single side mixed (SMD and THC on the same side) : solder paste printing - patch - reflow welding - manual plug-in (THC) - wave soldering;
4. Single-side mixing (SMD and THC are respectively on both sides of PCB) : side B printing red glue -- patch -- red glue curing -- flip plate -- side A plug-in -- side B wave soldering;
5. Double-sided mixing device (THC on side A, both sides of A and B have SMD) : printed solder paste on side A -- patch -- reflow welding -- flip plate -- printed red glue on side B -- patch -- red glue curing -- flip plate -- plug-in on side A -- wave soldering on side B;
6, double-sided mixed (both sides of A and B have SMD and THC) : A side printing solder paste -- patch -- reflow welding -- flip plate -- B side printing red glue -- patch -- red glue curing -- flip plate -- A side plug-in -- B side wave soldering -- B side plug-in attached.
In soldering process, the smallest variables should belong to the machine equipment, so the first to check them, in order to achieve the correctness of the check, can be assisted by an independent electronic analyzer, such as thermometer detection of various temperatures, accurate calibration of machine parameters with an electric meter.
PCBA is to process an empty PCB board through a series of procedures, and finally process it into an electronic product for users to use. In the process of production, a link is linked to a link, which link has quality problems, have a great impact on the quality of products.
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