Salt mist system of multifactor environmental aging test device for composite material

Abstract

The invention discloses a salt mist system of a multifactor environmental aging test device for a composite material. The salt mist system comprises a salt mist generating chamber and a test working chamber, wherein the salt mist generating chamber is communicated to the test working chamber, and a salt mist generator is arranged in the salt mist generating chamber. According to the salt mist system of the multifactor environmental aging test device for the composite material, the salt mist generator is an ultrasonic salt mist generator, when the salt mist system works, salt water to be atomized is added into the salt mist generating chamber, and the salt water can be atomized into salt mist with a smaller particle diameter under the action of the acoustic cavitation of the ultrasonic salt mist generator, so that the controllability of the salt mist is realized, and the validity of a salt mist tested result is improved; and the salt mist can be diffused from the salt mist generator to the test working chamber and evenly covered on a sample workpiece, so that the uniformity of the settlement quantity of the salt mist is realized. The salt mist system of the multifactor environmental aging test device for the composite material can serve as a salt mist system to be applied to salt mist test equipment.

Description

technical field [0001] The invention relates to a salt spray system of a composite material multi-factor environmental aging test device. Background technique [0002] Composite materials, that is, resin-based composite materials, have been widely used in building materials, aerospace, aviation and other departments due to their advantages such as light weight, high strength, corrosion resistance, convenient processing and molding, and good designability. [0003] When carrying out the salt spray test of the multi-factor environmental aging test on the large-scale composite material sample workpiece, it is necessary to pass the salt spray into the test studio, and the way of supplying the salt spray generally adopts two methods: the air pressure spray method and the spray tower method. . However, the most obvious disadvantage of these two methods is that the uniformity of the salt spray deposition is poor, the surface of the sample workpiece cannot be evenly covered, and th...

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Problems solved by technology

However, the most obvious disadvantage of these two methods is that the uniformity of the salt spray deposition is poor, the surface of the sample workpiece cannot be evenly covered, and the diameter of the salt spray particles is large

Since the smaller the salt spray particles, the larger the surface area formed, the more oxygen absorbed, and the stronger the corrosion, the test results obtained by using the air pressure spray method and the spray tower method to test the salt spray are very good. It is difficult to correctly reflect the performance of the sample workpiece

In addition, the pneumatic spray method generally uses the compressed air produced by the air compressor to atomize the salt water. However, the compressed air produced by the air compressor generally contains oil, so that the generated salt spray contains a certain amount of oil, which will affect the salt spray on the water. Corrosion effect of sample workpiece

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