How to deal with burnt tip of electric soldering iron
How to deal with burnt tip of electric soldering iron
1. First wipe it with soldering iron tip cleaner, then repeatedly apply tin and clean it with a sponge several times until it becomes bright.
2. First adjust the temperature to 300°C, clean the welding tip with a cleaning sponge, and check the condition of the welding tip. If the tin plating layer of the soldering tip contains colored oxides.
3. Plate a new tin layer, and then wipe the soldering tip with a cleaning sponge. This cleaning process is repeated until the oxide is completely removed, and then a new tin layer is plated.
4. Wipe with toothpaste or polishing paste, and be careful to use gentle force.
How to prevent the soldering iron tip from burning
1. Intermittent energization method
Depending on the newness of the soldering iron, generally a soldering iron will begin to "burn out" after being powered on for 15 to 30 minutes. Therefore, if the soldering iron is powered on for 15 minutes, the power must be disconnected for 3 to 5 minutes, and then connected again.
2. Cooling method
Using a homemade cooling bracket to cool the tip can prevent "burn-in".
The manufacturing method of the cooling bracket is to take a scrap metal pen tube, an empty can (metal shell), cut off two-thirds of it with scissors, clamp the waste pen tube in the can with an iron clip, and then inject three Half the volume of water and a soldering iron cooling bracket are ready. Insert the tip of the electric soldering iron into the pen barrel to keep the soldering iron powered for a long time without "burning".
Reasons for electric leakage in electric soldering iron
The soldering iron core is composed of a heating wire, an insulating layer support and an insulating layer. When the insulation layer is exposed to moisture or is used for a long time and ages, the insulation level may decrease, causing leakage of electricity in the soldering iron core. Then it is transmitted through the heat transfer shell and soldering iron tip of the electric soldering iron.
The handle of the electric soldering iron will also suffer from leakage failure after excessive aging.
When a soldering iron leaks electricity, the problem is very serious and can easily cause electric shock accidents, which is extremely harmful to people and electronic and electrical equipment to be repaired. Please replace the soldering iron core and leaking parts immediately, and replace them as a whole if necessary.
