Why vacuum drying oven first vacuum and then heat


First, let's look at how the vacuum dryer works.

The actual temperature and vacuum pressure of the vacuum drying oven are converted into electrical signals by the temperature sensor and pressure sensor located in the oven. The heater, vacuum pump and air inlet solenoid valve are controlled by microcomputer to achieve the required temperature and vacuum degree.

parts


Why vacuum drying oven first vacuum and then heat? If the workpiece is heated first, the gas will expand when heated. Due to the good sealing of the vacuum drying oven, the huge pressure generated by the expanding gas may make the tempered glass of the observation window burst. This is a potential danger. This danger can be avoided by following the procedure of first vacuuming and then heating.

Vacuum drying oven is a high-precision constant temperature device with heating and vacuum control. (the above is an example of the real empty oven of constant Kenton) designed for drying heat sensitive and easily oxidized substances, especially suitable for powder or granular samples, and effectively shorten the drying time.

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