Salt spray corrosion test chambers are also called salt water spray test chambers or salt water spray test machines, which use industrial salt, also called sodium chloride, to adjust salt water test fluid to test the corrosion resistance of industrial products and stainless steel tools. The preparation method of saline test solution: Dissolve the first grade crystal (medicinal) of sodium chloride that our company matches with filtered water or purified water with a concentration of 5+(-) 1%. The specific gravity should be measured daily at a temperature of 33-35 ℃ while maintaining a specific gravity of 1.0268-1.0413 to be qualified; The pH of a heated solution will change, so there are three methods to adjust the pH: first, when the temperature is at 35 ℃, the sprayed solution will be affected by the pH change and the temperature will rise. When adjusting, the pH value should be below 6.5. (Test) Take out 5 ° C of the prepared solution, boil for 3 seconds, cool down, and measure its pH value, which is between 6.5 and 7.2; 2： After heating filtered or purified water to 60 ℃ and adding salt, its pH value will not change after 24 hours of use; 3、 After heating the filtered water or purified water at 35 ℃ and adding salt, adjust its PH value to 6.5~7.2; Note: The pH value of the solution should be adjusted with a dilute solution of vinegar and sodium hydroxide. The solution should be dissolved to eliminate impurities before use.

Technical parameters of salt spray corrosion test chamber:

According to JIS, ASTM, CNS, GB standard parameters, the size can be selected or customized according to the customer's product size.

- Salt water spray test; NSS、ACSS。

Laboratory: 35 ℃± 1 ℃. Pressure air tank: 47 ℃± 1 ℃.

Corrosion resistance test: CASS.

Laboratory: 50 ℃± 1 ℃. Pressure air tank: 63 ℃± 1 ℃.

Temperature fluctuation: ± 0.5 ℃; Temperature uniformity: ± 2 ℃.

Salt spray settling amount: 0.5-2ml/80cm2 per hour (standard type).

Spray mode: air flow; Continuous and adjustable cycle (standard type); Airflow type: Dual pressure adjustable.

The structural characteristics and advantages of the salt spray corrosion test chamber are as follows:

Liuqin Company pays attention to the aesthetic design of this type of test box, with reasonable structural requirements and very smooth lines that make customers look natural and smooth. The box material is made of PVC plastic sheet, which has a smooth and bright appearance, is easy to clean, corrosion-resistant, and leak free. Various auxiliary accessories and facilities are also made of corrosion-resistant materials.

Due to the transparent PVC sheet material of the box cover, the condition of the specimens in the salt spray testing area can be clearly observed from the outside, but it does not affect the test results, nor does it affect personal safety and environmental damage. And the box cover is designed with a top angle of 110 degrees, so that the condensed water generated during the test process will not drip onto the test object and affect the test results. The lid and body of the box are sealed with water to ensure that the test results and other equipment inside the corrosion chamber are not affected, and even the possible harm to the test operators will not exist. The small box cover is manual, and the box cover of the large salt spray corrosion test chamber is automatically opened by Taiwan, China air cylinder, which is convenient and free. The opening angle is about 80 degrees, or it can be designed separately according to the customer's special situation. The air source can be compressed air with a pressure of 0.4 megapascals.

The heating method for the salt spray corrosion test chamber body is the inner tank water tank heating method, which heats up quickly and distributes temperature and humidity evenly. The sample rack is designed with two layers tilted at 15 degrees and 30 degrees according to the standard, and can also be hooked.