Which muffle furnace or tube furnace has more uniform temperature control?

Generally, the smaller the volume, the easier the temperature is to be uniform. Obviously, the internal volume of the closed tube furnace of the muffle furnace is large, and the heating element arrangement of the muffle furnace is not very uniform. The muffle furnace is generally used for industrial heat treatment, and it does not need to be too good. Temperature uniformity. The internal volume of the tube furnace is small, and the heating element is generally wound on a ceramic tube, which will form a uniform temperature zone at the center of the furnace tube. Many thermocouple temperature sensors are calibrated using tube furnaces. This temperature uniformity feature.