The heat treatment insulation temperature of the product is one of the important process parameters that affect the organization and performance of the product, and the temperature control accuracy of the effective heating zone of the heat treatment furnace is directly related to the heat preservation accuracy of the product, the heat treatment process of the product needs +10 °C, and the temperature uniformity of the furnace can be measured to detect whether it reaches +10 °C, so as to choose whether to choose this furnace. However, due to the influence of factors such as furnace structure, furnace sealing, control thermocouple, heating element loss and temperature control instrument selection, the actual temperature in the heat treatment furnace, especially the temperature of the effective working area, changes with the influence of various factors.
It is of particular importance to ensure the quality of heat treatment products that we use secondary instruments, measuring instruments and compensation wires to carry out regular "temperature uniformity tests" for heat treatment to identify whether the furnace meets the requirements of the heat treatment process.