Vacuum heating furnace is a kind of heating equipment commonly used in the laboratory, with the advantages of fast heating, uniform temperature, easy operation, etc., which is widely used in the fields of chemistry, materials, biology and so on. The working principle of vacuum heating furnace is to achieve the heating treatment of the sample through the heating under vacuum state, which can control the heating temperature, heating time and other parameters to meet different experimental needs.

Vacuum heating furnace is mainly composed of heating chamber, vacuum system, control system and other parts. The heating chamber is generally made of stainless steel, high temperature resistance, corrosion resistance, to ensure the stability of the heating process; vacuum system through the vacuum device to achieve the exclusion of indoor gases, to ensure that the environment of the heating chamber is in a vacuum state, to avoid the impact of impurities such as oxygen on the samples; control system through the setting of the parameters, to achieve the precise control of the heating temperature, time and other parameters to ensure the reliability of the experimental process.

Vacuum heating furnace is widely used in the laboratory. In the field of materials, vacuum heating furnace can be used for sample sintering, annealing, heat treatment and other processes to improve the performance of materials; in the chemical field, vacuum heating furnace can be used for high-temperature reaction, to promote the speed of the reaction, improve the purity of the reaction product; in the biological field, vacuum heating furnace can be used for biological samples of the sterilisation, degassing and other treatments to ensure that the experimental process of the sterility.

When using vacuum heating furnace, you need to pay attention to some operational matters. Firstly, we should check whether the vacuum system is normal before operation to ensure that the vacuum degree meets the requirements; secondly, we should set the heating temperature, time and other parameters according to the experimental requirements to avoid the temperature is too high or too low to affect the experimental results; finally, we should pay attention to the cleaning and maintenance of the heating chamber to ensure the normal operation of the equipment.

In general, the vacuum heating furnace as a necessary equipment in the laboratory, has the advantages of fast heating, uniform temperature, easy to operate, etc., and plays an important role in scientific research experiments. Reasonable use of vacuum heating furnace can improve the efficiency of the experiment, ensure the accuracy of the experimental results, and provide strong support for the smooth progress of scientific research.