Before printing, lead-free solder paste must be well prepared; otherwise, it will affect the printing and soldering effect. So, what are the matters that need attention?The following is what the solder paste manufacturer will tell you:

1After taking the solder paste out of the refrigerator, pay attention to the expiration date of the solder paste. If it has expired, it is not recommended to use it and it needs to be scrapped. When taking solder paste, the principle of "first in, first out" should be adhered to. If there is any previously opened and unused solder paste, it should be chosen first.

2After lead-free solder paste is taken out of the refrigerator, it must be warmed up at room temperature4After about an hour, avoid the appearance of moisture.

3For lead-free solder paste that has warmed up well, open it and stir. The stirring time is3It takes about minutes. Do not open it before it is ready to stir.

4The entire operation and solder paste specifications, etc. should all be properly organized and recorded for future reference.

When doing these jobs well,Lead-free solder pasteThen it can be put into use online. Of course, to achieve better soldering results, other preparatory work is also necessary, such as solder paste printing machines and steel mesh design.