》》1. To understand the vacuum oven, first understand what is "vacuum".

1.1 vacuum: refers to the gas state below an atmospheric pressure in a given space, which is a physical phenomenon.

1.2 vacuum degree: vacuum degree refers to the degree of gas rarity under vacuum state

》》2. Vacuum oven is a heat treatment equipment that can provide vacuum and high temperature environment in a certain space.

2.1 temperature range:

RT ~ 260 ℃; RT ~ 500℃； RT ~ 600℃；

2.2 vacuum degree:

Divided into atmospheric pressure ~ -0.098mpa; Atmospheric pressure ~ 100Pa; Atmospheric pressure ~ 1pA; Atmospheric pressure ~ 0.01pa; Atmospheric pressure ~ 0.001pa; Atmospheric pressure ~ 0.0001pa

》》3. Vacuum oven is more widely used because its temperature range and vacuum degree range are wider than that of vacuum oven.

3.1 vacuum drying oven: it is mainly used for drying laboratory utensils, heat sensitive and easily decomposed articles; Drying in pharmaceutical industry and vacuum low-temperature drying in food industry.

3.2 vacuum oven: in addition to drying and curing, it is also used for material research and heat treatment, heat treatment of composite materials and polymer materials, metal anti-oxidation heat treatment, and semiconductor industry and aerospace industry.