How many watts is the right soldering iron for home use
The power and temperature of the soldering iron has little to do with the power, the greater the power, the greater the soldering joints can be welded, some of the weldments faster heat conduction should also be used with a high-power soldering iron, according to the formula: heat = power * time, the greater the power can be said to make the weldments to achieve the same amount of heat the shorter the time and the soldering iron set the temperature is not relevant. At present, the soldering iron is mainly divided into two types of external heat and internal heat, these two classifications in accordance with the power of the different specifications of the soldering iron. For external heat type, the higher the power, the higher the temperature of the soldering iron head, while the power of the internal heat type is different from the external heat type.
There are two major types of soldering irons: internal and external. Endothermic soldering iron mainly has 20, 30, 35, 45, 50, 75W several kinds. External heat type soldering iron in addition to the internal heat type soldering iron all the wattage of 100, 150, 300W and so on several kinds. The choice of internal and external heat type: under the same wattage, the temperature of internal heat type soldering iron is higher than the temperature of external heat type soldering iron.
Soldering iron is the most commonly used soldering tool in wire harness related soldering operations. Its role is to convert electrical energy into thermal energy on the welding point part of the heating welding, whether its success is a large part of how to see how it is manipulated, so a certain point of view on the use of the soldering iron relies on a sense of manoeuvre.
Generally speaking, the choice of the soldering iron is the choice of the power of the soldering iron. The power of the soldering iron should be determined by the size of the soldering point, the soldering point area is large, the soldering point of the heat dissipation speed is also fast, so the choice of the power of the soldering iron should also be larger.
30W: suitable for mobile phones, MP3, and other small welding products
40W: suitable for Ze gamepad, handheld game consoles, etc.
60W: suitable for TV sets, stereos, keyboards, tape recorders, radios, fans, game consoles and other home appliances. At the same time covers 30W, 40W suitable for all appliances. Can be universal all household appliances repair.
Some high-current soldering points need more tin, too little power will cause heat dissipation too fast, the soldering point is not easy to tin or present a semi-liquid, this situation is prone to grey tin phenomenon, easy to weld. The disadvantage of high-power soldering iron is a shorter life, can not be long time power, maintenance is relatively troublesome, and technology is not good easy to burn components and boards. So according to their own requirements to choose the right power soldering iron.
