Introduction to the application of electric soldering iron
In Lecture 5, we have already learned that electric soldering irons (welding stations) can be divided into internally heated and externally heated types. Here, I would like to introduce the application knowledge of electric soldering irons (welding stations).
Gripping method of electric soldering iron
There are two basic gripping methods for electric soldering irons. One is to grip the handle with a full handle and hold it firmly. Beginners can use this method to achieve proficiency; Another method is to hold it with the head down, like holding a pen, using a virtual grip, which is commonly used by seniors. The virtual grip operation is fast and efficient, especially when assembling and disassembling small components. Of course, there are also other ways to follow the design documents on the production line.
Use of electric soldering iron
Before using a new soldering iron, the tip of the soldering iron should be polished with fine sandpaper, heated with electricity, dipped in rosin, and then touched with the soldering wire with the tip edge to evenly coat the soldering iron with a layer of tin. This can facilitate welding and prevent surface oxidation of the soldering iron head. If the old soldering iron tip is severely oxidized and turns black, the surface oxide can be removed by steel filings to expose the metallic luster, and then tin plated again before use.
The electric soldering iron should use a 220V AC power supply, and special attention should be paid to safety when using it. The following points should be taken seriously:
(1) It is best to use a three pole plug for the soldering iron plug. Ensure that the casing is properly grounded.
(2) Before use, carefully check the power plug and power cord for damage. And check if the soldering iron head is loose.
(3) When using an electric soldering iron, do not use force to strike it. To prevent falling. When there is too much solder on the soldering iron head, it can be wiped off with a cloth. Do not throw it randomly to prevent scalding others.
(4) During the welding process, the soldering iron should not be placed indiscriminately. When not welding, it should be placed on a soldering iron frame. Be careful not to place the power cord on the soldering iron head to prevent accidents caused by burning the insulation layer.
(5) After use, the power should be cut off in a timely manner and the power plug should be unplugged. cold
Afterwards, retrieve the soldering iron from the toolbox.
welding consumables
When welding, soldering tin and flux are also required.
(1) Soldering: Soldering electronic components, usually using solder wire with a rosin core. This type of soldering wire has a low melting point and contains rosin flux, making it extremely convenient to use.
(2) Flux: The commonly used flux is rosin or rosin perfume (dissolved in alcohol). The use of flux can help remove oxides from the metal surface, facilitate welding, and protect the soldering iron head. When welding larger components or wires, solder paste can also be used. But it has a certain degree of corrosiveness, and residues should be promptly removed after welding.
Auxiliary tools
For the convenience of welding operations, pointed nose pliers, side cutters, tweezers, and small knives are often used as auxiliary tools. You should learn to use these tools correctly.
