The salt spray test chamber is mainly suitable for the salt spray corrosion test of parts, electronic hardware components, protective layers of metal materials and industrial products. Before the equipment is tested, the preparation work for the test is very important. It is also important to pay attention to the test during the test, including the work after the test. The following will tell you one by one.
1. Sample preparation: The sample must be fully cleaned. The cleaning method used depends on the surface conditions and the nature of the dirt, such as ethanol, acetone, etc., but you must not use any abrasives or solvents that will attack the surface of the sample. After cleaning the sample, care must be taken not to touch it to avoid contamination. The position of the sample in the box should be such that the main surface of the test is 15 ° ~ 30 ° from the vertical and parallel to the main side of the salt spray flowing in the box, and the sample should be placed so that the salt spray can All samples settled freely. The salt solution on one sample shall not fall on any other sample.
2. During the test, it must be noted that the samples must not be in contact with each other, nor should they be connected to other metals or water-absorbing materials and the box body, and should be at least 50 mm away from the wall of the box. Man-made fibers or other inert insulating materials must be used. The cutting edge of the sample or the place with identification mark should be coated with appropriate materials for anti-corrosion (such as paint, paraffin or adhesive tape, etc.); the temperature in the box should be at the test temperature before placing the sample; Such cleaning and inspection.
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