The anticorrosive effect of PTFE piping in corrosion prevention equipment is typically concurrent, encompassing the following three aspects: physical, chemical, and electrochemical mechanisms.

Physical corrosion prevention. By appropriately matching pigments that react with oil-based film-forming agents, a dense corrosion-resistant coating can be obtained, enhancing the physical corrosion prevention. For instance, lead-based pigments reacting with oils form lead soaps, making the corrosion-resistant coating dense and reducing the penetration of harmful substances like water and oxygen. Phosphate-based pigments, after hydrolysis, form insoluble basic salts, which have the effect of blocking pinholes in the corrosion-resistant coating. Moreover, iron oxides or fillers like flake mica, aluminum powder, and glass薄片 can all reduce the permeability of the corrosion-resistant coating, providing physical corrosion prevention.

Chemical corrosion prevention. When harmful acidic or alkaline substances enter the anti-corrosion coating, they can act as neutralizers, transforming them into harmless substances. This is also an effective corrosion prevention method. Particularly, the clever use of compounds such as zinc oxide, aluminum hydroxide, and barium hydroxide can easily neutralize harmful acidic or alkaline substances for corrosion prevention. These compounds may also react with water or acid to form alkaline substances. These alkaline substances adsorb onto the surface of steel, maintaining its alkalinity and making it less prone to rust in an alkaline environment.

Chemical Corrosion Inhibition. Water and oxygen that penetrate the coating through pinholes react with the corrosion-inhibiting equipment loose in the corrosion-inhibiting coating, forming corrosion-inhibiting ions. This moisture rich in corrosion-inhibiting ions reaches the metal surface, causing the steel surface to become passivated and preventing the dissolution of iron ions. Chromium-based pigments possess this characteristic. Perhaps using metals with lower electrode potentials than steel to maintain steel, such as zinc-rich coatings, is due to the lower electrode potential of zinc, which acts as a sacrificial anode, making steel less susceptible to corrosion.

Rubber is a commonly used material in anti-corrosion equipment, acting as a barrier between corrosive mediums and metallic surfaces to prevent corrosion. However, the fabric can also sustain damage during use. What materials are generally used to repair such damage? Next, the expert at Teflon-lined pipe specialists will introduce these materials to you.

1. Repair with proportioned steel lining tape

This method is widely used and yields significant results; the backing for glass steel is applied using the hand-molding technique.

2. Repair with the original material layer and brand-name adhesive board

When the requirement is for the lining layer to be made of the same material, repairing with the original rubber board yields excellent results, with the process identical to the fabric process.

3. Repair using pre-vulcanized rubber sheets

Select pre-vulcanized butyl rubber sheets, first grind the defective areas with an angle grinder to achieve a metallic luster surface and a fresh rubber surface. Clean up the area, and then use the pre-vulcanized rubber sheet for repair.

The repair of anti-corrosion equipment fabrics is not limited to these few types. Regardless of the material chosen for repair, it is necessary to first clean the corrosive medium, ensure the safety of personnel during the repair process, and only after the repair effect is verified can the anti-corrosion equipment be put back into use.