If you operate according to the procedure of heating first and then vacuuming, when the heated air is pumped out by the vacuum pump, the heat will inevitably be brought to the vacuum pump, which will cause the temperature rise of the vacuum pump to be too high, which may reduce the efficiency of the vacuum pump.
The workpiece is put into the vacuum drying box to be evacuated in order to extract the gas components that can be extracted from the material of the workpiece. If the workpiece is heated first, the gas expands when heated.
Because the vacuum box is very well sealed, the huge pressure generated by the expanding gas may burst the tempered glass of the viewing window. This is a potential danger. This danger can be avoided by operating according to the procedure of first vacuuming and then heating.
The correct method of use should be vacuumed first and then heated up. After reaching the rated temperature, if it is found that the vacuum degree has decreased, it will be properly pumped. Doing so is beneficial for extending the service life of the equipment.
The heated gas is directed to the vacuum pressure gauge, and the vacuum pressure gauge will generate a temperature rise. If the temperature rise exceeds the specified operating temperature range of the vacuum pressure gauge, it may cause an indication error of the vacuum pressure gauge. Therefore, according to the above conditions, it is better to use the rotary vacuum dryer.
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