Vacuum furnace is a kind of equipment used for high temperature treatment of materials, usually used for sintering, heat treatment and alloy preparation and other processes. Temperature control technology is one of the important parameters for the normal operation of the vacuum furnace, which directly affects the stability of the process and the quality of the product. The following will introduce several common vacuum furnace temperature control technology:

1. Closed Temperature Control System: Closed Temperature Control System is a basic temperature control technology, which monitors and regulates the temperature inside the furnace by means of a heater and a temperature sensor. When the temperature exceeds the set value, the heater will be automatically heated, and vice versa, the heating will be stopped to maintain a constant temperature. This way is simple and easy to understand, but the stability is general.

2. PID control system: PID control system is a commonly used closed-loop control technology, through the measurement of temperature error, integral temperature error and differential temperature error to regulate the output power of the heater in order to achieve precise control of the temperature. the PID control system is characterized by fast response and good stability, and it is suitable for the process that requires high precision of the temperature.

3. PLC control system: PLC control system is a kind of intelligent control technology, through the program controller to automate the monitoring and regulation of the vacuum furnace temperature. PLC control system has the characteristics of strong flexibility, programmability, can be adjusted according to different process requirements in real time control strategy to ensure temperature stability and product quality.

4. adaptive control system: adaptive control system is an advanced control technology, by constantly adjusting the control parameters and optimize the control strategy to adapt to changes in the vacuum furnace process. Adaptive control system has the characteristics of self-learning ability and adaptability, and can realize accurate temperature control under complex process conditions.

5. multi-point temperature control system: multi-point temperature control system is a kind of independent control technology for different areas in the vacuum furnace, through a number of temperature sensors and zoning controller to monitor and regulate the temperature of different areas. Multi-point temperature control system can realize different temperature requirements for different workpieces, improve production efficiency and product quality.

The above is a few common vacuum furnace temperature control technology, different control technology for different processes and requirements, choose the right temperature control technology to improve the production efficiency of the vacuum furnace and product quality is of great significance. With the continuous development of science and technology, I believe that the vacuum furnace temperature control technology will continue to improve and innovate for industrial production to bring more convenience and benefits.