Reflow soldering temperature setting standard

During the reflow soldering process, the temperature must be controlled within an appropriate range to ensure welding quality and reliability. The temperature varies for different types of welding. JEENOCE shares some reflow soldering temperature setting standards.

The reflow soldering temperature setting is divided into four temperature zones: heating zone, preheating zone, reflow soldering zone, and cooling zone. Different temperature zones have different setting standards.

Temperature setting for reflow soldering heating zone: The heating rate should be set at 2 to 4 ℃/second. If the heating rate in the preheating zone is too fast, it is easy to cause the fluidity and composition of the solder paste to deteriorate, and it is easy to produce explosion and solder bead phenomena.

Temperature zone setting for reflow soldering preheating: The temperature should be between 130 and 190 ℃, with a suitable time of 80 to 120 seconds. If the temperature is too low, there may be solder not melting after reflow soldering.

Temperature setting for reflow soldering: The temperature in the reflow soldering zone is the peak temperature of reflow soldering, which is set at 240 to 260 ℃. It is recommended to adjust the melting time above 240 ℃ to 30 to 40 seconds.

Temperature setting for reflow soldering cooling zone: The rate should be at 4 ℃/second.

In order to ensure the temperature setting standards for reflow soldering, we need to conduct precise measurements and control. We can choose to use thermometers or other measuring devices to monitor temperature to ensure that it is controlled within the set range. In addition, we can also use advanced control technologies such as PID control, feedback control, etc. to ensure temperature stability and accuracy.