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Vacuum drying oven is one of the necessary equipment for laboratory equipment. Vacuum drying oven is a high-precision constant temperature equipment with heating and vacuum control. It is often used for powder drying, baking or sterilization and sterilization of glass containers, especially for powder. Or the drying process of granular samples can effectively shorten the drying time. It is a standing equipment in research fields such as biopharmaceuticals, medical services, agricultural research, biochemistry, etc.
Many customers are asking what is the difference between a vacuum drying oven and a blast drying oven. Now let's make a simple comparison.
Comparison of appearance
The blast drying oven is suitable for various products or materials and electrical, instrumentation, components, electronic and electrical engineering, chemical chemistry, food and other fields for drying and various constant temperature adaptability tests under constant temperature environment conditions. It is an industrial and mining enterprise, laboratory, industrial and agricultural production, medical and health units drying, heat treating and heating the test sample, but it is not suitable for volatile, flammable and explosive items to avoid explosion.
Different characteristics
| Blast drying oven | Vacuum drying oven |
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1. The blast drying oven is mainly used for drying, baking and heat treatment tests of items, and is also suitable for thermal aging tests of plastic polymer materials, electrical insulation and other materials with low requirements;
2. The blast drying box is equipped with a hot air circulation system and is equipped with air inlet and outlet ventilation ports.
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1. The vacuum drying oven is specially designed for drying heat-sensitive, easily decomposed and easily oxidized substances, and can be filled with inert gas as needed
2. The vacuum drying oven is stored in an environment without oxygen or filled with inert gas for storage, heating, testing and drying, so it will not oxidize;
3. The vacuum drying oven needs to be equipped with a vacuum pump to achieve a vacuum degree of 133 Pa;
4. The vacuum drying oven does not have a hot air circulation system.
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How to use vacuum drying oven?
Put the items to be dried into the box, close the air release valve, open the vacuum valve, turn on the power and start pumping, and turn off the power when the vacuum in the box reaches -0.1 M pa.
Turn the power switch of the drying box to the "on" position. According to the required temperature setting, the indicator light in the box will suddenly turn on and off, no need to control, generally enter the constant temperature state after 120 minutes.
If you need a lower temperature, you can use the second setting method, for example, the required temperature is 40 degrees Celsius, you can set 40 degrees Celsius for the first time, wait for the temperature to reach the beginning, then set the second time 40 degrees . This can also quickly enter the constant temperature state.
After the drying is completed, the power supply of the drying cabinet should be turned off, the air release valve should be opened to release the vacuum in the cabinet, and then the door should be opened to take out the items.
