In the production process of PCB aluminum substrate, in order to ensure its better application effect, manual soldering of tin wires is usually used later. This has certain requirements for welding. If the welding is not good, there will be great harm. Only by solving all the problems in the soldering process can the life of the PCB aluminum substrate be guaranteed to be longer.

So, what are the common problems of PCB aluminum substrate manual soldering wire? The following is the answer for everyone.

One: Pay attention to the soldering temperature

Due to the particularity of the material of the PCB aluminum substrate, in order to ensure the effect of its welding, it is necessary to ensure that the welding is performed at a temperature level, and at the same time, some operations can be reasonably avoided. question. The welding temperature should be kept as constant as possible, and attention should be paid to the welding accuracy. Only in this way can we really guarantee a good application effect.

Two: choose the right raw materials

In the welding process, it is particularly important to choose the right raw material. In the case of welding, try to choose some ultra-low temperature electrodes and their relative flux, so that the welding effect will be better. It is not recommended to use flux-cored flux, because that will cause major problems and will cause certain damage to subsequent welding.

Select the appropriate material for welding, the effect will be better.

Three: It is harmful to apply force to spot welding with a soldering iron tip

The tip of the soldering iron transfers heat to the spot welding. The key is to increase the total contact area. Adding force to the spot welding with an electric soldering iron has no effect on the heating. In many cases, it can cause damage to welded components. Solder joints such as resistors, power switches, connectors, etc. are generally fixed on plastic preforms. This requires ensuring the accuracy of the welding wire.

After all, hand welding is a traditional welding method. Although manual soldering is rarely used in the production and manufacture of large electronic equipment, it is inevitable to use manual soldering in the maintenance and adjustment of electronic equipment. At the same time, the quality of the welding will also impair the repair effect. As a professional skill with strong theoretical theory, manual welding requires more practice and practice to ensure excellent welding quality!