An internal heating soldering station's differences from an external heating soldering station
Internal heat soldering station
As the name implies, "internal heat" means "heating from the inside". The soldering iron tip is set outside the heating element, so that the heat is transferred from the inside to the soldering iron tip. It has the advantages of fast heating, high heating efficiency, small size, light weight, and low power consumption. Advantages such as dexterity. Suitable for soldering small components. However, due to the high temperature of the electric soldering iron tip, it is easy to oxidize and turn black, and the soldering iron core is easily broken, and the power is small, only 20W, 35W, 50W and other specifications.
The shape of the soldering iron tip used in the internal heating type electric soldering iron is a hollow cylinder, and the heating element is covered by the soldering iron tip, so that its heat is not easily dissipated into the air, so the heat utilization efficiency is high, the warm-up time is short, and the power is average. It does not need to be too large to meet the requirements. Generally, the internal heating power is below 50W, and internal heating electric soldering irons of about 20W~30W are common.
External heating soldering station
"External heat" means "heating outside", so named because the heating resistor is outside the soldering iron. It is suitable for welding both large components and small components. Since the heating resistance wire is outside the tip of the soldering iron, most of the heat is dissipated to the external space, so the heating efficiency is low and the heating speed is slow. Generally, it takes 6 to 7 minutes to preheat before welding. Its volume is large, and it is inconvenient when soldering small devices. However, it has the advantages of longer use time and higher power of the soldering iron tip, and has various specifications such as 25W, 30W, 50W, 75W, 100W, 150W, and 300W.
The shape of the soldering iron tip used in the external heating electric soldering iron is a solid round iron column, and the soldering iron tip of the heating element is covered. Including the handle of the soldering station, if you see that the electric soldering iron has the above characteristics, you can analyze it and know that it belongs to the external heating electric soldering iron.
