摘要
The rust⁃proof ability relate to the reliability of bolt connection,and the painting is the most simple and effective rust⁃proof method in industry.Because of lacking general standard,there are different coating thicknesses painted on the surface of workpieces,which influences the loose life of connecting bolt.For the longer loose life,Three kinds of applied coatings(primer coating,primer+top⁃coat coating,primer+intermediate⁃coat+top⁃coat coating)in industry are tested in the experiment,and the best coating is found.All the conclusions gotten by analyzing the testing phenomenon of every coating shown in experiment,have profound meaning for practical industry application.
