I'm going to use a tin solder circuit. I have rosin and a box of solder that looks a bit like a candle. Which one should I use? How do you use it? Is not the first electric iron head into the dip, or what ah, the great God to help, ah, the Internet did not find such a video, a good pain forced to do homework, thank you!
Answer: put the soldering flux on the object being welded. As long as it is on the first layer of the book, then eat the tin with the soldering iron and point it over the point where it is to be welded. Because the flux is used to remove the oxide layer on the surface of the object being welded.
Supporting the use of manual welding flux for liquid flux can be spray or dip preheating is the best
Tin welding circuit is the key, is to clean the welding parts, rosin heating and melting at the welding position or the flux on welded objects, and then eat tin in iron after welding to the point above it.In general, soldering small parts with rosin, welding large parts with soldering flux. Rosin is used on the circuit board and soldering flux for single piece welding.