Welding process of photovoltaic modules
In the production and processing of photovoltaic modules, welding is the main connection method. It uses heating or other methods to create an effective, strong and permanent physical connection between the two materials. Welding methods are usually divided into three categories: fusion welding, brazing and contact welding. In the non-melting state of the weldment, the solder metal with a lower melting point is heated to a molten state to fill the gap of the weldment. And the welding method that mutually diffuses with the welded metal to achieve intermetallic bonding is called brazing.
The soldering connection is mainly used in the processing of photovoltaic modules, which is divided into brazing and soldering. The difference between the two is that the melting point of the solder is different, and the melting point of the soldering is not higher than 450°C. Soldering with tin solder is also called tin soldering, which is a kind of soft soldering. The advantage of soldering is that the method is simple and convenient. It is relatively easy to implement repairing solder joints, replacing components, and re-soldering. The task can be completed by using a simple electric soldering iron.