Study on Sealing and Electrical Insulation of Dissimilar Metal Joints of Titanium Alloy Filters
Through the analysis of the structural characteristics of the installation parts of dissimilar metal joints in titanium alloy filters,according to the principle of dissimilar metal galvanic coupling corrosion,to determine the electrical insulation protection scheme of titanium alloy dissimilar metal joints,there are mainly four kinds of electrical insulation protection schemes,namely,surface oxidation,ceramic spraying,non-metallic and non-metallic+surface oxidation double combination.Through the analysis of the principle and structure of various titanium alloy dissimilar metal joints electrical insulation protection scheme,and through the various electrical insulation scheme for the denseness and electrical insulation performance test verification,found that the surface oxidation and ceramic spraying after many times of dismantling,there will be a failure of electrical insulation performance;non-metallic scheme of the sealing performance and electrical insulation performance to meet the use of the requirements;non-metallic+surface oxidation double combination of the use of double The non-metallic+surface oxidation double combination adopts double protection of electric insulation scheme,which improves the reliability and service life of electric insulation performance of dissimilar metal joints,and provides certain experience accumulation for the subsequent research on the sealing and electric insulation performance of titanium alloy flat-shoulder joints.
titanium alloy filterdissimilar metal galvanic corrosionsealingelectrical insulation performance
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