Generally, we are using itSolder pasteWhen the time comes, the solder paste that is not used up on the same day is usually stored in the refrigerator if it will not be made again in two days, and the time is marked on it. This is relatively reassuring for us. Shenzhen JJY is a well-known industrial and economic company specializing in customizing high-temperature solder paste. Now, let's have the editor of JJY explain it to you:

To put it simply, medium-temperature solder paste is in contrast to high-temperature and low-temperature solder paste. It is called medium-temperature solder paste because its melting point is between that of high-temperature and low-temperature solder paste. It is an environmentally friendly lead-free solder productSMTIt is one of the important welding raw materials in the patch.
  Storage of solder paste
  1.The expiration date of solder paste: Store in a sealed container0℃~10℃At that time, the validity period is6One month.
  Note: Before discharging the new solder paste into the refrigerator, affix the status label, date and fill out the solder paste entry and exit control form.
  2.After the solder paste is opened, it should not be left for more than a certain period of time.
  3.When production and manufacturing are completed or packaging and printing are terminated for any reason, the remaining solder paste on the steel wire mesh plate should not be left for more than a certain period of time1Hours.
  4.When the packaging printing is terminated and will no longer be used, the remaining solder paste should be separately canned, sealed and frozen. The remaining solder paste should only be connected Continue to use it once. When there is any remaining time, handle the damage.

In the use of solder paste, the chemical composition of medium-temperature solder paste is tin, bismuth and silver. Among them, bismuth is relatively brittle and has a high melting point172When it comes to electronic devices that cannot withstand high temperatures, the finished products soldered with medium-temperature solder paste should not be dropped, collided or damaged by human factors. The reliability is relatively poor. If we compare medium-temperature solder paste with high-temperature solder paste, the reliability of high-temperature solder paste when used in the soldering of electronic devices that can withstand high temperatures is much better than that of medium-temperature solder paste. Therefore inLEDLamp beadSMTIf the electronic devices or boards in the surface mount can withstand high temperatures, it is recommended to adopt themHigh-temperature solder pasteThe melting point of high-temperature solder paste is high, and the soldering effect is very good. The key is that the soldering and the stability of the soldered equipment are good.

Shenzhen JJY Industrial Technology Co., Ltd. mainly operates:LEDType solder paste, lead-containing solder paste, lead-containing silver solder paste, stainless steel plate type solder pasteSMTSolder paste and wire manufacturers of type solder paste, lead-free flux paste, no-clean solder wire, lead-free solder wire, leaded solder wire, lead-free and leaded solder rods, wave solder rods, automatic solder wires, etc.