Ceramic lined pipe

The ceramic-lined steel pipe is made by self-propagating high-temperature synthesis-centrifugal method. The melting point of corundum in the ceramic steel pipe is 2045 °C. The corundum layer and the steel layer have special structure due to process reasons, and the stress field is also special. At normal temperature, the ceramic layer is subjected to compressive stress, and the steel layer is subjected to tensile stress, and the two are opposite to each other and form a balanced whole. Free equilibrium state Only when the temperature rises above 400 °C, the thermal stress coefficient is different, and the new stress field generated by thermal expansion and the original stress field in the ceramic steel pipe cancel each other out, so that the ceramic layer and the steel layer are in a free equilibrium state. When the temperature is raised to 900 °C, the ceramic-lined steel pipe is placed in the hydrophobic water, repeatedly soaked several times, the comp...