Then after returning to the temperature, it must be fully stirred. The stirring time of the mixer is about 1~3 minutes, depending on the type of mixer.
After the above steps are completed, use:
(1) Add about 2/3 of the solder paste to the steel plate, and try to keep the amount of solder paste on the steel plate less than 1 can;
(2) Depending on the production speed, the amount of solder paste on the steel plate is supplemented by adding several times to maintain the quality of solder paste;
(3) Don't put the unused solder paste with the unused solder paste. It is recommended to use the solder paste within 24 hours after opening;
(4) After the solder paste is printed on the substrate, it is recommended to paste the components within 4-6 hours, and then enter the reflow soldering to complete the soldering;
(5) If the wire is changed for more than one hour, please scrape off the solder paste on the steel plate before changing the wire and put it in a solder paste jar for packaging;
(6) To achieve the best welding effect, please control the indoor temperature at 22-28℃ and the humidity at Rh40-60%;
(7) If you want to erase the printed error, please use the window.
Double Chile brand lead-free solder paste is a domestic solder paste brand manufacturer with its own registered trademark. The quality of solder paste is stable and the service is good. Some friends have used their solder paste, and all aspects of the response are quite good, and the cost performance is also good. The above is purely personal advice. I hope the above answers can help!