source:Industry News release time:2021-09-13 Article author:sznbone Popular:pcb
Talking about how to deal with the circuit board soldering off
I saw that some friends would ask what should I do if the soldering pads of the circuit board are soldered off, and how to deal with it? Shenzhen PCB proofing manufacturers also encountered the same situation when they were producing circuit boards.
When the circuit board is soldered, the pad falls off mostly because the soldering time is too long or the temperature is too high due to repeated soldering. The copper pad of the circuit board will fall off after repeated expansion. Pay more attention to this to prevent more falling off when soldering.
The circuit board cuts off the peeled pads with a knife and cuts them to the place where they are not peeled off to prevent the circuit from expanding along the peeling place. If your component pins are long enough, you can scrape off the insulating varnish at the circuit joints after cutting, and finish it. Solder the far-sighted pins here. If your PCB circuit board component pins are not long enough, you can use a piece of thin wire to solder through the pad hole and then solder to the component pins, and solder the other end to the soldering Use hot melt glue to fix the joints of the disk to prevent re-opening and falling off
If the pad of your circuit board falls off very seriously, the above method is not suitable. You can also choose the flying lead method. Solder one end of the wire to the pin of the desoldered component, and the other end is soldered to the pad that is connected to the desoldered pad. Any solder joints. There is another way, bridging. If there are components on the same circuit around the soldered pad component pins, you can directly solder the component pins to the component pins and discard the original pads. Of course, when soldering, you must see clearly that you cannot solder the string to prevent burnout of the components.
Well, today, the editor of Shenzhen PCB Proofing Manufacturer will talk about this first. The above is to share this information with you. I hope you can learn more about the knowledge of circuit boards. Friends who need to purchase circuit boards, please contact me. Oh!
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