Salt spray test device with constant temperature and constant humidity

Abstract

The invention provides a salt spray test device with constant temperature and constant humidity. The salt spray test device comprises a box body, a test cabinet, a humidifier, a cooling device, a heater, an evaporator, a water tank, a circumfluence device and a salt spray generator. The salt spray test device is reasonable in design; firstly the salt spray generator is matched with the circumfluence device, so that the salt spray can integrally and equably etch a solid-shaped object, and the whole device has a structure required by constant temperature and humidity, so that the corrosion test condition is set in a needed scene, and the test condition is more approximate to the real environment. In addition, the salt spray test device also has a favorable drainage and overflowing structure, the device use safety is ensured, and the salt spray test device has excellent capability of saving the salt spray.

Description

technical field [0001] The invention relates to testing equipment, in particular to a salt spray testing device capable of constant temperature and humidity. Background technique [0002] The salt spray corrosion test chamber is a kind of equipment that uses the simulated salt spray environment to evaluate the corrosion resistance of metal materials and their protective layers or industrial products. It is mainly for the experimenters to simulate an ideal experimental environment for accelerated corrosion. It may take several months or even a year for some products to be corroded in a natural exposure environment, but it takes only a few hours or dozens of hours to achieve similar results in artificially simulated salt spray tests. The artificial simulated salt spray test includes neutral salt spray test, acetic acid salt spray test, copper salt accelerated acetic acid salt spray test, and alternating salt spray test. [0003] However, the salt spray testing device (test ...

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Problems solved by technology

[0003] However, the salt spray testing device (test box) in the prior art does not have the function of adjusting temperature and humidity. In addition, the salt spray generating device in the prior art is usually a compressed air type or an ultrasonic type. Otherwise, a uniform and stable airflow cannot be formed, and the part or side of the object to be tested facing away from the salt spray generator cannot get the same amount of fog corrosion.

[0004] In addition, the control of the atomization generator in the prior art generally adopts the method of timed spraying. This method is very practical in the non-constant temperature and humidity test system, and can effectively save the amount of saline solution, but in constant temperature and humidity, especially But in the high temperature mode, because the tiny droplets of salt mist evaporate very quickly, regular spraying cannot guarantee sufficient salt mist

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