Electric soldering iron is an indispensable tool in electronic production and electrical appliance maintenance. The main purpose is to weld components or wires. According to the mechanical structure, there are internal heating electric soldering iron and external heating electric soldering iron. The electric soldering iron can be divided into high-power soldering iron and low-power soldering iron according to different uses. So do you know how to use electric iron?  　　 How to use electric iron  1. Choose suitable solder, low melting point solder wire for welding electronic components. 2. Flux, use 25% rosin dissolved in 75% alcohol (by weight) as flux. 3. The soldering iron should be tinned before use. The specific method is: heat the soldering iron, apply the flux when the solder is just melted, and then apply the solder evenly on the soldering iron head to make the soldering iron head eat evenly A layer of tin. 4. Soldering method, polish the pad and component pins with fine sandpaper, and apply flux. Dip an appropriate amount of solder with a soldering iron tip and touch the solder joint. After the solder on the solder joint is completely melted and immersed in the component lead, the soldering iron tip is gently lifted away from the solder joint along the component pin. 5. The welding time should not be too long, otherwise the components may be easily scalded. If necessary, clamp the pins with tweezers to help heat dissipation. 6. The solder joint should be in the shape of a sine wave peak, the surface should be bright and smooth, no tin thorn, and the amount of tin is moderate. 7. After the welding is completed, the residual flux on the circuit board should be cleaned with alcohol to prevent the carbonized flux from affecting the normal operation of the circuit. 8. The integrated circuit should be soldered last, and the electric soldering iron should be reliably grounded, or use residual heat to solder after power off. Or use a special socket for the integrated circuit, plug the integrated circuit after soldering the socket. 9. The electric soldering iron should be placed on the soldering iron rack.  　　 Instructions for use of electric iron  In the repair of mobile phones, the components on the circuit board are often replaced, and an electric soldering iron is required, and the requirements on it are also very high. This is because the components of the mobile phone use surface mount technology, the components are small, the integration is very high, the printed circuit is fine, and the pad is small. If the electric soldering iron is not properly selected, it is easy to cause man-made failures during the soldering process, such as virtual soldering, short circuit, or even soldering the circuit board. Therefore, it is necessary to use high-end electric soldering irons as much as possible, such as using a thermostat to prevent static electricity. In addition, some large devices such as shielding shields require high-power soldering irons, so an ordinary thick-headed soldering iron of more than 60W must be prepared. The above is for the friends about the use of electric iron and instructions for use. In the soldering process of electric soldering irons, many reasons will cause the occurrence of soldering failures, such as short circuits, virtual soldering, or soldered circuit boards. To prevent these accidents, the most important thing is to choose a suitable electric soldering iron. Emergency Led Drivers,Emergency Battery Backup Led Driver,Led Emergency Backup Driver,Emergency Light Drivers Foshan Nai An Lighting Electric Co.,ltd , https://www.naipsled.com