Electric soldering iron purchasing strategy
Electric soldering iron is an essential tool for electronic production and electrical maintenance, mainly used for welding components and wires. It can be divided into internal heating electric soldering iron and external heating electric soldering iron according to mechanical structure. It can be divided into non tin absorbing electric soldering iron and tin absorbing electric soldering iron according to function, and can be divided into high-power electric soldering iron and low-power electric soldering iron according to different purposes.
Electric soldering iron purchase
Choosing a suitable electric soldering iron will greatly improve the efficiency of our soldering iron head in electronic lead-free welding. However, in general, the selection should be based on the actual situation of the welded object, with a focus on heating form, power size, shape of the soldering iron head, etc.
Selection of heating methods based on electric soldering iron
1. Selection of internal and external heating: Under the same wattage, the temperature of internal heating electric soldering iron is higher than that of external heating electric soldering iron.
2. When low-temperature welding is required, a voltage regulator should be used to control the temperature of the electric soldering iron. The temperature of the electric soldering iron is closely related to the power supply voltage. In practical use, the temperature of the electric soldering iron is often reduced by lowering the power supply voltage.
3. Control the temperature by adjusting the extension length of the soldering iron head.
4. There are several methods to stabilize the temperature of electric soldering irons: installing a regulated power supply to prevent changes in the power supply network; Maintain a certain volume, length, and shape of the soldering iron head; Using a constant temperature electric soldering iron; Maintain a constant indoor temperature; Avoid natural wind or electric fans, etc.
Selection of electric soldering iron power
1. When welding small wattage resistive and capacitive components, transistors, integrated circuits, printed circuit boards, pads or plastic wires, it is recommended to use 30-45W externally heated or 20W internally heated soldering irons. The best choice for application is to use a 20W internal heating electric soldering iron.
2. When welding the welding points of general structural products, such as wire rings, wire claws, heat dissipation fins, grounding pads, etc., it is recommended to use 75-100W electric soldering iron.
3. For large welding points, such as metal frame connectors, welding pads, etc., it is recommended to use 100-200W electric soldering iron.
