1. Before using a new soldering iron, polish the tip with fine sandpaper, heat it up, dip it in rosin, and touch the blade edge of the tip to the soldering wire to evenly coat the tip with tin. Doing so can facilitate Welding and preventing oxidation of the soldering iron tip surface.

2. It is strictly forbidden to repair the alloy head. If it is found that it cannot be tinned, it can be used after activation with flux and tinned.

3. The soldering iron should be kept dry and is strictly prohibited from working in a humid environment.

4. Before use, carefully check whether the power plug and power cord are damaged, check whether the voltage is consistent, and check whether the soldering iron tip is loose.

5. When using the soldering iron, do not hit it hard. Prevent it from falling. If there is too much solder on the soldering iron head, wipe it off with a cloth. Do not throw it around to prevent scalding others.

6. During the welding process, the soldering iron should not be left lying around. When not welding, it should be placed on the soldering iron stand. Note that the power cord cannot be placed on the soldering iron head to prevent the insulation layer from being burned and causing an accident.

7. After use, the power supply should be cut off immediately and the power plug should be unplugged. After cooling, put the soldering iron back into the tool box.

8. After using it for several times, remove the soldering iron tip and remove the oxide layer to prevent the oxide layer from being blocked in the future and making it impossible to remove the soldering iron tip.

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Basic tips for using a soldering iron:

1. Select appropriate solder, low melting point solder wire for welding electronic components.

2. Flux, use 25% of rosin dissolved at 75% of alcohol( weight ratio) Used as a soldering flux.

3. The soldering iron must be tinned before use. The specific method is:: Heat the soldering iron until the solder is just melted, apply flux, and then apply solder evenly on the soldering iron tip so that the soldering iron tip is evenly coated with a layer of tin.

4. Welding method: Polish the pad and component pins cleanly with fine sandpaper, and apply flux. Dip an appropriate amount of solder into the soldering iron tip and touch it to the solder joint. Wait until all the solder on the solder joint melts and immerses the component lead. , gently lift the soldering iron tip up along the pins of the component and away from the solder joint.

5. The welding time should not be too long, otherwise it is easy to burn the components. If necessary, use tweezers to clamp the pins to help dissipate heat.

6. The solder joint should be in the shape of a sinusoidal wave peak, the surface should be bright and smooth, without tin thorns, and the amount of tin should be moderate.

7. After the soldering is completed, use alcohol to clean the remaining flux on the circuit board to prevent the carbonized flux from affecting the normal operation of the circuit.

8. The integrated circuit should be soldered last, and the soldering iron should be reliably grounded, or the residual heat should be used for soldering after the power is turned off. Or use a special socket for integrated circuits, and then plug in the integrated circuit after soldering the socket.

9. The soldering iron should be placed on the soldering iron stand.