With the development of society,
solder paste, as an auxiliary soldering material, has become an unreliable part of many industries, so it is becoming more and more popular in society now, so everyone knows why it is necessary to warm up before patch soldering. Have you ever understood this, the following solder paste manufacturers will explain it to you:
One of the necessary steps before solder paste is used is to return to temperature. The so-called return to temperature is also called thawing. It is natural thawing, not artificial heating to thaw. The tin powder is evenly distributed, so as to give full play to the various characteristics of the solder paste. The method of rewarming the solder paste is to take the solder paste out of the refrigerator and place it at a standard room temperature of 22-28°C for reheating and thawing. The standard 500g solder paste should be rewarmed for at least 2 hours, so that the temperature of the solder paste and the environment same temperature. Do not open the closed tank cover if the recovery time is insufficient. If it is forced to open, the water vapor in the air will condense due to the temperature difference and enter the solder paste, which will cause the performance of the solder paste and poor soldering. The longer the opening time will lead to Solder paste dries faster.
Generally, the characteristic atomic substances in solder paste are at low temperature, have extremely low activity, and will react with water vapor to form water-based deposits. If they are used directly at this time, it will not only affect the process, but also waste products. Therefore, it is necessary to warm up the solder paste. Put the solder paste directly at room temperature for 3-4 hours to thaw naturally. Be careful not to use heating to shorten the time for warming up, nor to open the bottle cap before the warming up is completed. After the temperature recovery is completed, fully stir the solder paste, and then put it into use.