We use advanced steel plastic composite technology to fully liner polypropylene PP onto the groove of the steel body material, forming a dense protective layer to achieve anti-corrosion effect.

Strip pickling is an important process in the production of strip steel. Due to the high-temperature annealing treatment of the strip steel, a dense oxide film is formed on the surface, which must be pickled in hydrochloric acid or sulfuric acid solution and at a higher solution temperature (>60 ℃). Due to the strong corrosiveness of hydrochloric acid or sulfuric acid, almost all metals will undergo chemical reactions with them under high temperature conditions. Therefore, in the past, steel strip pickling was generally carried out by steam direct flushing for heating. But on the one hand, the direct flow of steam causes a large amount of condensed water from the steam to enter the pickling tank and dilute the tank solution, reducing the concentration of acid and causing the acid solution to overflow outside the tank; On the other hand, it will cause a large amount of acid mist to evaporate, which not only increases acid consumption but also causes serious environmental pollutionTherefore, it is quite important to use a heat exchange device that can withstand the corrosion of hydrochloric acid or sulfuric acid to heat the acid solution.
Polypropylene, polytetrafluoroethylene and other polymer heat exchangers are highly corrosion-resistant heat exchange equipment used for acid heating. This product has gradually gained attention from users in the chemical and surface treatment industries, providing an opportunity to solve the heat transfer problems of corrosive media such as strong oxidizing or acidic media.