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Welding components with electric iron is a basic assembly process, which plays a key role in ensuring the quality of electronic products. The following describes the welding points of some components.
1. Preferably rosin, rosin oil or acid free flux. Do not use acid flux, or it will corrode the weld.
2. Before welding, the area to be welded is scraped clean with a knife to make it metallic, coated with flux, and then coated with a layer of solder.
3. When welding, the electric iron should have enough heat to ensure the welding quality, prevent welding and long time off.
4. The soldering iron should not stay in the welding place for too long.
5. After the iron leaves the welding place, the welded parts can not be moved immediately, otherwise the parts are easy to dissolder because the solder has not been solidified.
6. It is best to tie and tin the connection of the connected components first.
7. When welding transistors and other high temperature devices, it is best to use Xiaoping nose pliers or tweezers to clip the transistor lead foot, welding but also to master the time.
8. It is better to use thin low temperature welding wire for semiconductor component welding, and the welding time should be short.
Due to the continuous development of electronic components to miniaturization, small solder joints, high welding strength and small heat affected zone around the processing point are required. Traditional welding technology weld appearance quality is poor, welding efficiency is low, weld ring and welding site ring binding is poor, easy to cause "welding", so it is difficult to meet the requirements.
Lasers, on the other hand, can produce true fusion, melting and mixing the materials of the contact. Laser soldering machine is a laser welding process that uses laser action on the surface of the solder plate connected with electronic components and circuit boards. Laser energy heats the tin material to melt instantaneously and forms a round and full solder joint.
