Beijing alternating salt spray/salt spray corrosion/neutral salt spray test (NSS test)

The salt spray test uses a salt spray test chamber, a test equipment with a certain volume of space, to create a salt spray environment using artificial methods in its space to evaluate the salt spray corrosion resistance of the product. Salt spray test can be divided into neutral salt spray test, acetate salt spray test, copper salt accelerated acetate salt spray test and alternating salt spray test. Neutral salt spray test (test) Neutral salt spray test is the earliest and most widely used accelerated corrosion test method. (Test temperature ℃)
The acetate salt spray test (test) test is developed on the basis of the neutral salt spray test.
The copper salt accelerated acetate salt spray test (test) test is a rapid salt spray corrosion test recently developed abroad (test temperature ℃)
The variable salt spray test is a comprehensive Salt spray test is actually a neutral salt spray test plus a constant humidity and heat test.
During the experiment, the sample to be tested should not be in direct contact with the box when placed in the box. Instead, it should be suspended or placed on a special shelf. If it is in the shape of a sheet, it should be at an angle with the plane, intermittently or continuously. Carry out spray test. The most important significance of the salt spray test is to detect the corrosion resistance of the product, and its test results are one of the important references for determining the service life of the product.
The scale of my country's salt spray test chamber is constantly expanding, and it is accelerating towards optical, mechanical and electrical integration and automation. Great progress has been made in technological reform. However, the export volume of domestic salt spray test chambers is very small, less than the total output value, while the import volume is roughly equivalent to the total output value. This shows that my country has a large demand gap for salt spray test chambers, but compared with domestic and foreign products, the technological level gap is still large, and it is far from meeting domestic demand.