Water Spray Chamber

Water Spray Chamber is the core test equipment for corrosion resistance testing of industrial products. It converts saline solution into uniform salt spray through a high-precision atomization system, and accelerates the simulation of harsh corrosion scenarios such as ocean and chemical industry in a closed environment. The equipment adopts dynamic balanced temperature control technology and tower atomization structure to ensure the stability of salt spray deposition (1~2ml/80cm²/h). The 24-hour test can be equivalent to the corrosion effect of several months in the natural environment. It supports neutral salt spray (NSS), cyclic corrosion (CCT), alternating salt spray-dry-humid heat and other multi-mode tests to meet the differentiated anti-corrosion verification needs of industries such as automobiles, photovoltaics, and 3C electronics. It is also equipped with a visual industrial control system, an observation window, and a corrosion-resistant PP material liner. The operator can monitor the test status in real time to avoid test interruptions caused by fogging and air leakage in traditional equipment.

Water Spray Chamber can simulate the corrosion effects of months or even years in the natural environment in a short time (24-96 hours) by precisely controlling the salt spray concentration, temperature and humidity, greatly shortening the verification cycle of the product's corrosion resistance and accelerating the R&D and quality inspection process.
It supports basic neutral salt spray (NSS), and can also perform test modes such as acetate spray (AASS), copper accelerated salt spray (CASS), and cyclic corrosion (CCT), meeting international and industry standards such as ISO 9227, ASTM B117, and GB/T 10125, and is suitable for multiple fields such as automobiles, electronics, military industry, and photovoltaics.
It adopts PID intelligent temperature control system (±0.5℃ fluctuation) and constant spray precipitation technology to ensure the stability of the test environment and avoid misjudgment due to equipment errors. Some high-end models support automatic data recording and meet laboratory certification requirements.
The chamber body is made of corrosion-resistant PP (polypropylene) material, and key components such as nozzles and brackets are made of titanium alloy or fiberglass, which can be rust-proof and non-deformed in long-term salt spray environments, extending the service life of the equipment.

First, need to prepare a salt solution of a specified concentration, usually a 5% sodium chloride solution. After the salt water enters the salt water tank, it is heated by an electric heater to evaporate the salt water and generate water vapor. The heating temperature is usually set at around 35°C. After the water vapor passes through the heater, the airflow formed is adjusted by the airflow regulator to ensure that the flow rate of the water vapor and the speed entering the test chamber are uniform. After the regulated water vapor enters the test chamber, it is mixed with compressed air and converted into fine salt spray particles through a nozzle or atomizer. These salt spray particles are evenly sprayed on the test sample to simulate the salt spray corrosion in the marine environment.

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