How to measure the heating area of the muffle furnace?

As a kind of heat treatment furnace, the muffle furnace is widely used. For the study of heating zone measurement and determination, it is directly helpful to find a set of proven methods for the detection accuracy and reliability of the muffle furnace.

Whether the filling of the insulation layer of the muffle furnace wall is uniform and whether the sealing is completed, these factors also directly affect the insulation accuracy of the heating zone. In actual measurement, it is often encountered that some high-temperature furnaces do not have regular maintenance to make the heat insulation performance of the heat treatment furnace. decline. In order to ensure that the heat preservation accuracy of the heating zone meets the technological requirements, only the space of the heating zone must be reduced. Although the heat preservation precision of the heating zone meets the technological requirements, the space of the heating zone is reduced, which directly affects the quality uniformity of the heat treatment of the workpiece. Therefore, the measurement results of the heating zone of the muffle furnace come from two aspects, one is the inherent thermal insulation performance of the heat treatment furnace itself, and the other is whether the temperature control system is reasonable. If the accuracy of temperature measuring instruments is very high, the temperature control method adopts PID intelligent continuous adjustment, and the internal quality of the furnace is poor, then the accuracy of the heating zone of the muffle furnace will not be high.