Analysing the use of constant-temperature electric soldering irons
1. Gripping method of constant temperature electric soldering iron
There are three ways to hold a constant temperature soldering iron.
① The reverse grip method is to hold the handle of an electric soldering iron in the palm with five fingers. This method is applicable to high-power electric soldering irons and welded parts with large heat dissipation.
② This method is suitable for larger electric soldering irons, and is generally used for curved soldering iron heads.
③ The method of holding a pen is used to hold an electric soldering iron. This method is suitable for low-power soldering irons and soldering soldered parts with low heat dissipation, such as soldering printed circuit boards for radios and televisions and their maintenance.
2. Treatment before using a constant temperature soldering iron
Apply electricity to the soldering iron tip before use. First, use a knife to shape the soldering iron head into a certain shape as needed, then connect the power supply. When the temperature of the soldering iron head rises to the point where it can melt tin, apply the soldering iron head to the rosin. Wait for the rosin to smoke before applying a layer of solder. Repeat this process two to three times, so that a layer of tin is hung on all the edges of the soldering iron head before use. An electric soldering iron should not be left unused after being powered on for a long time, as this can accelerate the oxidation of the soldering iron core and cause it to burn out, shorten its lifespan. At the same time, it can also cause the soldering iron tip to oxidize due to prolonged heating, and even burn to death, no longer eating tin.
3. Precautions for using a constant temperature soldering iron
① Reasonably select different types of soldering irons based on the welding object.
② Do not randomly tap the soldering iron head during use to avoid damage. The thickness of the steel pipe wall of the internal heating electric soldering iron connecting rod is only 0.2mm, and cannot be clamped with pliers to avoid damage. Regular maintenance should be carried out during use to ensure that the soldering iron tip is coated with a thin layer of tin.
