To repair electrical gadgets at home, what size electric soldering iron is typically used on occasion
Introduction of electric soldering iron
The electric soldering iron is mainly composed of a soldering iron head, a heating core, a handle, a power cord, and a transformer (the soldering station has a transformer). According to the mechanical structure, the electric soldering iron can be divided into two types: internal heating type and external heating type. If you want to say which of them is better, It can only be said that both of them have their own advantages and disadvantages, and each has its own uses.
Classification of soldering iron tip
Soldering iron tips can be divided into: pointed head, short pointed head, curved pointed head, knife head, small knife head, thin knife head, horseshoe shape, flat head, long round head, short round head, and round head.
External heat soldering iron
Because its soldering iron tip is very easy to oxidize, the oxidized soldering iron tip is basically useless. In addition, it is relatively large, and some soldering is not very convenient, so the external heating electric soldering iron is no longer recommended here, and the internal heating electric soldering iron is directly recommended.
Therefore, it is recommended to use an internal heating type electric soldering iron. Here I recommend a relatively good and easy-to-use internal heating type electric soldering iron, that is Gaojie Huanghua's 907 electric soldering iron (just search for Huanghua 907). Friends who have used it should know that this electric soldering iron The soldering iron is very durable, and the temperature can be adjusted, and the heating speed is very fast.
Precautions for using electric soldering iron
Many electric soldering irons have a long service life, but due to some wrong methods, their service life becomes very short. The following is the author's personal experience to introduce the precautions during the use of electric soldering iron.
1. Unplug the electric soldering iron in time after use
After many people use up the soldering iron, they still keep the soldering iron in a state of electric heating. At this time, the tip of the soldering iron is in a state of high temperature heating, and it is easy to be oxidized. Once the tip of the soldering iron is oxidized, it will be more difficult to use it next time. Therefore, it is necessary to unplug the electric soldering iron plug in time during use.
2. Tin plating on the tip of the soldering iron
I don't know if you have the habit of tinning, but the author always maintains a habit of tinning. Because after using the soldering iron, if the soldering iron tip is not tinned, the soldering iron tip will be oxidized due to high temperature, and some will turn black directly, which will affect the normal use of the soldering iron next time.
3. Do not use acidic flux
In order to make welding more convenient, some users will use some flux. Most of these fluxes are acidic, and the corrosion of the soldering iron tip is very serious under high temperature conditions.
The best flux is rosin, and the flux of rosin should be fully utilized. Rosin can be ground into powder and mixed with alcohol. They can be used as flux and the effect is very good. (25% rosin dissolved in 75% alcohol)
4. Solder selection
You get what you pay for, you can't go wrong at all. Buying a good solder wire can not only solder quickly, but also better for the tip of the soldering iron. However, some not-so-good solder wires are prone to uneven solder joints, burrs, and weak solder joints.
