How to deal with the electric soldering iron not absorbing tin
The soldering iron tip I used to use was a copper tip, which became shorter as I used it. Two years ago, a student's parent who runs an electrical appliance business gave me a 30W alloy tip soldering iron and a roll of welding wire.
Although it is a 30W soldering iron, when it is used to solder circuits for a long time, the tin on the soldering iron tip dries up and does not stick to the tin at once. Sometimes, the more urgent it is, the more annoying it becomes. What should be done?
My 30W and 20W soldering irons are plugged in with a voltage regulator
Keep the soldering iron cool and prevent overheating, oxidation, and tin sticking. When a large soldering point with high temperature is needed, adjust the voltage to 220V, which is very useful.
People with conditions can buy solder wire products, the smaller the diameter, the better the silver luster.
For those who don't often use wireless radios, a soldering iron is essential in their homes. When there are no soldering wires, they can collect melted rosin on the back of the old circuit board. I always receive tin blocks the size of walnuts, which saves me from buying them.
Once the soldering iron tip does not stick to tin and is severely oxidized, it can be wiped a few times on cement ground or lightly on wood. After heating, it should be dipped in rosin first and then in tin. With rosin, the entire soldering iron tip can be covered with tin to facilitate timely use.
The larger the wattage of the soldering iron tip, the more it oxidizes after being powered on for a long time. The solution is to reduce the voltage, or you can use a few rectifier diodes to follow the same voltage reduction principle as in electric hotpot, electric blanket, and electric heater. Find a knob to switch the adjustment switch, and then find a plastic box to assemble a soldering iron voltage regulator yourself.
