Vacuum diffusion pump oil plays an important role in the aerospace field and is mainly used in the following areas:

Vacuum simulation environment: Aerospace vehicles will face an extreme vacuum environment in space. In order to simulate and test this environment, the aerospace field uses vacuum chambers and vacuum simulation equipment. Vacuum diffusion pump oil is used to create and maintain these vacuum environments, ensuring proper operation of equipment and accuracy of testing.

Propulsion System: A spacecraft's propulsion system typically uses propellants and fuels to generate thrust. To ensure proper operation of the propulsion system, a proper vacuum environment needs to be established in the combustion chamber and the propulsion system. Vacuum diffusion pump oil is used in these systems to pump gas and maintain the operating pressure of the propulsion system.

Vacuum welding and material processing: The aerospace field requires high-precision welding and material processing processes, which usually need to be carried out under vacuum conditions. Vacuum diffusion pump oils are used to create and maintain the vacuum required to ensure the purity and quality of materials during welding and machining.

Space simulators: In order to simulate the environment and conditions of a spacecraft in space, the aerospace field uses space simulators for various tests and experiments. Vacuum diffusion pump oil is used in these simulators to create a vacuum environment in order to test the performance, durability and suitability of the equipment.

In short, the application of vacuum diffusion pump oil in the aerospace field involves many aspects such as simulation, testing, propulsion system and material processing to ensure the normal operation and performance requirements of aerospace vehicles.