1. Maintain of iron tip

Before welding working
    You should to wet the clean sponge, then squeeze excess water. This is the best way for cleaning the iron tip. . If you are using a non-wet cleaning sponge, it will damage the iron tip and prevent it to absorb the tin.
 
2. When welding work
 
    According as following sequence can be protected the soldering tip of iron tip by and can be reduced the rate of oxidation.
 
3. After the welding work
 
     First, adjust the temperature to about 250 ° C, then clean the iron tip and add a new layer of tin for protection. (If you use a non-temperature-controlled soldering iron, cut off the power first and let the temperature decrease of the iron tip, then put the tin to iron tip.)