For a household electric soldering iron, how many watts should I use?
The power of an electric soldering iron is not closely related to temperature. The higher the power, the larger the number of solder joints that can be welded. Some welding parts that conduct heat quickly also need to use high-power soldering irons. According to the formula: heat=power * time. The higher the power, the shorter the time it takes for the welding part to reach the same heat, which is not related to the set temperature of the soldering iron. At present, electric soldering irons are mainly divided into two types: externally heated and internally heated. Under these two categories, there are also many specifications of electric soldering irons according to their power. For the externally heated type, the higher the power, the higher the temperature of the soldering iron head, while the power of the internally heated type is different from that of the externally heated type.
There are two main types of electric soldering irons: internally heated and externally heated. There are several types of internal heating electric soldering irons, including 20W, 30W, 35W, 45W, 50W, and 75W. There are several types of externally heated electric soldering irons, including 100, 150, and 300W, in addition to all the wattage ratings of internally heated electric soldering irons. The selection of internal and external heating: Under the same wattage, the temperature of the internal heating electric soldering iron is higher than that of the external heating electric soldering iron.
Electric soldering iron is the most commonly used welding tool in wire harness related welding operations. Its function is to convert electrical energy into thermal energy to heat and weld the welding point, and the success of it largely depends on how well it is controlled. Therefore, from a certain perspective, the use of an electric soldering iron relies on a sense of technique.
Generally speaking, the selection of an electric soldering iron is the choice of its power. The power of an electric soldering iron should be determined by the size of the solder joint. The area of the solder joint is large, and the heat dissipation speed of the solder joint is also fast. Therefore, the power of the selected electric soldering iron should also be higher.
30W: Suitable for products with small solder joints such as mobile phones, MP3 players, etc
40W: Suitable for gaming controllers, handheld gaming consoles, etc
60W: Suitable for household appliances such as televisions, speakers, keyboards, recorders, radios, fans, game joysticks, etc. Simultaneously covering all electrical appliances suitable for 30W and 40W. Can be used for the maintenance of all household appliances.
Some high current solder joints require a lot of soldering, and if the power is too small, it can cause heat dissipation to be too fast. The solder joints are not easy to solder or appear semi liquid, which can easily lead to gray soldering and virtual soldering. The disadvantage of high-power soldering iron is that it has a short lifespan, cannot be powered on for a long time, is relatively difficult to maintain, and poor technology can easily burn out components and boards. So choose a suitable power soldering iron according to your own requirements.
