What are the main problems existing in the soldering process of lead-free tin bars?

Lead-free tin barIt is an energy-saving raw material, free of lead chemicals, also known as low-carbon and environmentally friendly welding wire, and has long been approvedSGSSuccessful detection. No air pollution. There are several main problems existing in the production process. Let's have the solder paste manufacturer explain them below:

1The incompleteness of lead-free solder. The fundamental cause of this problem is not only that the flux is too hot, but also that it can be triggered by the material properties of different welded products. Therefore, the essential cause must be identified. Not only can the company's products be considered, but also whether other factors have disrupted.

2The phenomenon of non-uniformity on the product surface during the lead-free tin bar soldering process. It is mainly caused by the following factors:

aEnvironmental pollution around the surface of the welding process and uncleanliness of the surface before the welding process can cause the phenomenon of uneven welding surface.

bThe comparison and verification of lead-free solder welding process time and oxidation will lead to the phenomenon of solder inhomogeneity.

3Solder joints may occur after the lead-free tin bar soldering process. This is mainly due to the improper use of flux. To address this issue, we must always maintain a dry welding process environment and ensure that the preheating temperature meets the actual conditions in the welding process flow. Only in this way can the generation of solder joints be greatly reduced.

4After the emergence of lead-free tin bars, many people have never come across phenomena such as soldering process packaging and soldering process packaging. Any problem with the flux is caused by insufficient flux activity, and the specific role of the flux has never been brought into play.

During the welding process, there is no tin or lead, and there are many situations, big and small. The above situations are more common. If you have more situations, please feel free to call our engineers at any time to help you solve the problems in the welding process and create higher efficiency.