How to choose lead-free solder paste reasonably? A brief discussion.

How to choose lead-free solder paste? How can lead-free solder paste achieve the best soldering effect without causing waste? Today, the solder paste manufacturer will introduce to you how to use lead-free solder paste reasonably:

As long as it is not used directly, lead-free solder paste should first be stored at low temperatures, and usually stored in0-10℃Inside the refrigerator or freezer. The shelf life of lead-free solder paste begins when it is produced6It is about one month. If it exceeds the period, it will be stopped from use. When choosing lead-free solder paste, the principle of "first in selection" should be adhered to.

If it is to be used directly, all necessary auxiliary tools should be prepared when using it, such as solder paste printers.PCBAll the boards and the like have been wiped clean. Pay special attention to lead-free solder paste. If it has just been taken out of the refrigerator, it should be warmed up at room temperature4It should be used after about an hour so as to ensure an excellent welding effect.

PCBIf the plate is not used after weldingLead-free solder pasteIt should be sealed in time and put back0-10℃Store in the environment for the next selection.