Salt Spray test Chamber | Aluminum Salt Spray Test

 Aluminum salt spray test is a test method used to test the corrosion resistance of aluminum and aluminum alloy surfaces. The test method mainly detects the corrosion of the surface of the specimen by exposing it to a salt spray environment under constant temperature and relative humidity conditions with a salt spray test chamber. Aluminum salt spray test is a common corrosion test method, widely used in aviation, automotive, construction and other fields.

Aluminum salt spray test and materials

Test equipment: salt spray test chamber, constant temperature and humidity device, electronic scale, reactor, sprayer, etc.

Test materials: aluminum plate, aluminum alloy, etc.

Test steps of aluminum salt spray test

Preparation of samples

The samples to be tested are subjected to surface treatment, such as cleaning, de-oiling, de-oxidizing layer and so on. Then put the sample into the salt spray test chamber to ensure that the sample matches the test conditions.

Setting of test conditions

According to the requirements of the test standard, set the test conditions, including temperature, humidity, salt spray concentration and other parameters. The test conditions must be strictly controlled to ensure the accuracy of the test results.

Setting of test cycle

Set the test cycle according to the requirements of the test standard. The test cycle is generally 24 hours, 48 hours, 72 hours, etc., and can also be adjusted according to the actual situation.

Execution of the test

Put the sample into the salt spray test chamber, turn on the test equipment and start the test. During the test, you need to check the corrosion of the specimen regularly and record the test data.

Evaluation of test results

After the test, the corrosion of the specimen is evaluated according to the requirements of the test standard. Evaluation criteria generally include appearance inspection, corrosion assessment, etc..

Precautions for aluminum salt spray test

The surface treatment of the sample must be thorough to ensure the accuracy of the test results.

Test conditions must be strictly controlled to ensure the reliability of the test results.

The test cycle must be adjusted according to the actual situation to ensure the accuracy of the test results.

The corrosion of the specimen needs to be checked regularly during the test and the test data recorded.

At the end of the test, the corrosion of the specimen needs to be evaluated, and the results are determined in accordance with the standard.

Analysis of the results of the aluminum salt spray test

Test results appear in the white spots, black spots and so on, generally due to the aluminum surface pitting or intergranular corrosion and so on.

White mist and black mist in the test results are generally due to generalized corrosion on the aluminum surface.

The degree of corrosion in the test results can be measured by corrosion depth, corrosion area and other indicators, in order to facilitate the comparison and analysis of the results.

Summary

Aluminum salt spray test is a common corrosion test method, widely used in various industries. The test process requires strict control of the test conditions to ensure the accuracy of the test results. Before implementing the test, it is necessary to understand the test standards to choose a suitable salt spray test chamber,and get familiar with test procedures to ensure the effectiveness of the test.