Protection methods for the soldering head of electric soldering irons
1. Before using an electric soldering iron, tin should be applied to the soldering iron head.
2. Use sandpaper or a file to polish the copper soldering iron head first. After connecting to the power supply for a few minutes, the color of the soldering iron head will change, indicating that the soldering iron is heating up. When the temperature of the soldering iron head reaches the melting point of the soldering tin, use it to dip the rosin soldering wire. The surface of the soldering iron head will be coated with a layer of bright tin, and the soldering iron head can be used.
3. Attention: Without a soldering iron tip dipped in tin, it will not be soldered during welding and cannot be soldered.
4. Keep the soldering iron head clean
It is necessary to ensure the cleanliness of the soldering iron head. Unclean soldering iron heads will quickly oxidize and cannot be tinned. Over time, it will cause corrosion pits on the soldering iron head, making welding work more difficult.
If the electric soldering iron is in a waiting state for welding for a long time and the temperature is too high, it can cause the soldering iron head to "burn out". When not welding, immediately turn off the power supply of the soldering iron.
The oxides and carbides derived from the residual flux on the soldering iron head can damage the soldering iron head and decrease its thermal conductivity.
Therefore, regularly cleaning the soldering iron head with a heat-resistant wet sponge can prevent damage to the soldering iron head. After each use, the soldering iron head needs to be wiped clean and dipped in a layer of tin to protect it.
Safety precautions when using electric soldering irons
Electric soldering iron is a handheld tool, and it is important to pay attention to safety when using it.
Newly used electric soldering irons should first check the insulation resistance between the power cord and the metal shell of the soldering iron before use.
Some manufacturers, in order to save costs during production, use plastic wires instead of fancy wires for the power cord of electric soldering irons, which poses significant safety risks. It is recommended to replace it with flower thread, as the fabric of the flower thread is not easily burnt or damaged.
The electric soldering iron needs to be placed on the soldering iron frame and should not be randomly placed. Pay attention to the wire not touching the soldering iron head to avoid burning items and causing a fire.
Electric soldering irons should be kept dry and should not be knocked during use to avoid damage.
Regularly check the power cord of the electric soldering iron for damage, whether the wiring terminals inside the soldering iron handle are loose, and whether the insulation resistance is qualified.
