The vacuum drying oven is suitable for heat treatment in a vacuum environment during the production process of electronic products, including defoaming, dehydration, hardening, and drying after clean treatment. It is particularly suitable for rapid drying of heat sensitive, easily decomposed, easily oxidized substances and complex components.

Operation method of vacuum drying oven:

1. Place the items that need to be dried into a vacuum drying oven, close the oven door, close the vent valve, open the vacuum valve, connect the power supply of the vacuum pump to start pumping, and when the vacuum degree inside the oven reaches -0.1MPa, close the vacuum valve and then turn off the power supply of the vacuum pump.

2. Turn the power switch of the vacuum drying oven to the "on" position, select the desired set temperature, and the temperature inside the oven will start to rise. When the temperature inside the oven approaches the set temperature, the heating indicator light will flash on and off repeatedly. Generally, it can enter a constant temperature state within 120 minutes.

3. When the required working temperature is low, a secondary setting method can be used. For example, if the required temperature is 60 ℃, the secondary setting can be 50 ℃. After the temperature overshoot starts to fall back, the secondary setting can be 60 ℃. This can reduce or even eliminate the phenomenon of temperature overshoot and quickly enter a constant temperature state.

4. According to the humidity level of different items, choose different drying times. If the drying time is long and the vacuum degree decreases, it is necessary to evacuate again to restore the vacuum degree. The vacuum pump power should be turned on first, and then the vacuum valve should be turned on.

5. After drying, the power supply of the drying oven should be turned off first, the vent valve should be opened, the vacuum state inside the oven should be released, and then the oven door should be opened to remove the items. After releasing the vacuum, if the sealing ring is tightly attached to the glass door and deformed, it is not easy to immediately open the box door. After a period of time, the box door can only be easily opened after the sealing ring returns to its original shape.