1. Place the material evenly on the sample rack in the vacuum drying oven and push it into the drying oven

2. Close the box door tightly and release the air valve. There are bolts on the box door that can tightly connect it with the silicone sealing strip

3. Connect the vacuum pump to the vacuum valve, open the vacuum valve, and evacuate

4. According to the performance of the vacuum pump, the maximum value of the vacuum pump shall be based on the pressure gauge drawn

5. After vacuuming, close the vacuum valve first. If the vacuum valve cannot be closed tightly, replace it, and then turn off or remove the power supply of the vacuum pump. (Prevent backflow phenomenon)

6. The drying cycle of our materials should be observed at regular intervals using force gauges, temperature gauges, and changes inside the box to handle them. If the pressure gauge index decreases, there may be a leakage phenomenon, and further pumping operation can be performed

7. After drying is completed, first open the vent valve to release the gas inside, then open the vacuum drying box door and remove the material.