The two major components of solder paste are tin powder and flux paste. It can be seen from this that flux paste is an indispensable auxiliary material for solderingsmtIt plays a crucial role in surface mount technology (SMT) processing. First of all, it is necessary to understand that solder paste is a kind of chemical substance, whose main function is to remove welding oxides, thereby promotingsmtWelding. Now, let's have JJY Solder Paste Manufacturer sort out for you the selection processFlux pasteWhat are the specific requirements at that time?

SMTThe specific requirements for solder paste in surface mount technology are as follows: 

1Due to its special composition, rosin is280℃It will decompose when heated, so it is necessary to seek solder paste with good thermal stability. Generally, the thermal stability temperature is not less than100℃. 

2The density of solder paste should meet the requirements. Generally speaking, it is required to be less than the density of liquid solder so that the solder paste can be better spread evenly on the solder, effectively isolate air oxides, and better exert its soldering effect, thereby improvingPCBAProduct quality. 

3The active temperature range of the solder paste should be appropriate. Control it to start acting before the solder melts, so that the surface tension of the solder can be better reduced during the actual welding.

Shenzhen JJY Industrial Technology Co., Ltd. is located in Longhua, Shenzhen. Its main production and operation include:LEDType solder paste, leaded solder paste, lead-free solder paste. If you have any needs, please feel free to contact us.