China Acid-Base Corrosion-Resistant Enamel Tube Air Preheater

The characteristics of the enamel tube air preheater The acid resistance test piece is soaked in 8% sulfuric acid solution, the color of the surface glaze layer has no obvious change, no corrosion pits, and the weight loss rate is not higher than that of the state lining. The alkali-resistant specimens are immersed in the NaOH solution with mass fraction and boiled, and the color of the surface glaze layer has no obvious change, no corrosion pit, and the weight loss rate is not higher than that of the state d lining. Thermal shock: When the test piece is heated to 3ºC, take it out and quickly put it in cold water at room temperature to cool it repeatedly. There is no phenomenon of peeling, peeling, cracking, etc. on the glaze surface.