What measures should be taken to prevent crevice corrosion when designing titanium equipment?

(1) Efforts should be made to eliminate gaps and retention areas in the structure as much as possible. If possible, use welding instead of bolted or riveted connections; Replacing spot welding with butt welds: Improving the flow state of the solution inside the equipment and avoiding the formation of retention zones.

(2) Select materials that are resistant to crevice corrosion or materials with surface treatment at the crevices. If Ti-0.15Pd titanium alloy with good resistance to crevice corrosion is selected to replace industrial pure titanium; Coating palladium, oxidation, and anodizing on the surface of titanium may all improve its resistance to crevice corrosion.

(3) Using gasket materials with special forms and compositions to improve the environment of crevice corrosion, etc.