The composite pipe manufactured by "self-propagating high-temperature synthesis-high-speed centrifugation technology" forms a uniform, dense and smooth surface ceramic layer and transition layer at high temperature and high speed. In addition, under the working temperature is 850-900 degrees, the ceramics will not fall, and the weight is relatively light. SHS straight pipes/elbows/bends/tees are very effective in severe wear industries.
The composite pipe has good comprehensive properties such as wear resistance, heat resistance, corrosion resistance, mechanical and thermal shock resistance, and good weldability. It is an ideal wear-resistant and corrosion-resistant pipeline for conveying granular materials, grinding, and corrosive media.
The melting point of ceramics in the composite pipe is 2045°C. The ceramic layer and the steel layer have special structures and special stress fields due to technological reasons. At room temperature, the ceramic layer is subjected to compressive stress, and the steel layer is subjected to tensile stress. Only when the temperature rises above 400°C, because the thermal expansion coefficients of the two are different, 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 balance state. When the temperature rises to 900 ℃, the composite pipe is put into the cold water and soaked for many times, the composite layer will not crack or crack, showing the unparalleled thermal shock resistance of ordinary ceramics. This performance is very useful in engineering construction. Because the outer layer is steel, and the inner layer does not crack when heated up, during construction, flanges, purge ports, explosion-proof doors, etc. can be welded, and direct welding methods can also be used. It is better than wear-resistant cast stone pipe, wear-resistant cast steel pipe, rare earth wear-resistant steel pipe, bimetal composite pipe, steel plastic pipe and steel rubber pipe which are not easy to weld or cannot be welded during construction. The self-propagating ceramic composite pipe has good mechanical impact resistance, and the composite layer will not crack and fall off during transportation, installation and beating, and when the two brackets are bent and deformed by their own weight.
Metallurgical and electric power industries transport coal powder, ash, mud, lime gypsum slurry and other pipelines, using SHS composite pipe, which has the characteristics of high wear resistance, long service life, convenient installation and significant economic benefits.