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2 Four Kinds Of Judgment Methods Of Salt Fog Test Results

Programmable Salt Spray Tester

The programmable salt spray tester equipment simulates corrosion tests in an artificial environment for the verification of comparative quality of metal materials with or without corrosion protection; suitable for rapid analysis of discontinuities, holes and damage in organic and inorganic coatings Phenomenon of anti-corrosion tests. In addition, for quality control purposes, comparisons can be made between samples coated with the same coating; salt spray tests are particularly suitable for the detection of certain metallic, organic, anodizing and conversion coatings. Continuity, such as small holes and other defects; where

1. The Neutral Salt Spray Test (NSS) applies to (metals and their alloys, metal plating (anode and cathode), conversion coatings, anodized coatings, organic coatings on metal materials);

2. Acetate salt spray test (AASS) is particularly suitable for testing copper + nickel + chromium, or nickel + chromium decorative coating; also found that it is suitable for testing aluminum anode coating;

3. The Copper Accelerator Acetate Spray Test (CASS) is suitable for testing decorative coatings of copper + nickel + chromium, or nickel + chromium; it has also been found to be suitable for use in testing of anodized aluminum coatings;

4. Outdoor accelerating tests under clearance salt fog (sore test): A similar test method developed mainly for the automotive industry to study corrosion under the membrane, especially for the surface of the steel sheets of all the coverings damaged by the splashing sand. The sore test is also applicable to all kinds of test methods with or without a metal substrate. Some basic bodies will show a sore appearance after the test; some tests will not.

Note: Since there are many factors affecting the corrosion process, such as the formation of the protective film, and changes with the conditions encountered, there is very little between the resistance to salt spray and the performance of other media. The direct relationship; thus obtained test results cannot be used as a direct guide to the corrosion resistance of tested metal materials in all applicable environments. Also, the performance of different materials in the test cannot be used as a direct guide to the corrosion resistance of these materials in use.

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