Composite profiled pipeline and manufacturing method thereof
A pipeline and special-shaped technology, which is applied in the direction of pipeline protection, pipeline damage/wear prevention, pipes, etc. It can solve the problems of large difference in thermal expansion coefficient of the outer sleeve of the thermal expansion coefficient, inability to make variable-diameter and special-shaped pipelines, and easy corrosion and wear. Achieve the effect of long service life, simple structure and manufacturing process, and prolong service life
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[0030] Embodiment 1: preparation composite elbow
[0031] First, prepare a ceramic particle preform 3 with a certain strength, the ceramic particle preform 3 is a ZTA particle preform, and its specific preparation method is as follows: first ZTA (ZrO 2 Toughened Al 2 o 3 Ceramic) particles, resole phenolic resin and water glass are mixed in a certain proportion and stirred evenly, then the mixture is pressed to form a ZTA particle prefabricated body with a certain shape, and then cured to make the ZTA particle prefabricated body have sufficient strength to facilitate fixing on Subsequent preparation of EPS foam pipes. Among them, the particle size of ZTA particles is 5-50um, the amount of binder added is 3%, the amount of pore-forming agent added is 5%-10%, and the size of the ZTA particle preform is about 120mm×120mm×15mm.
[0032] Then, according to the shape of the pipe outer layer 1 of the composite elbow, an EPS foam pipe matching the pipe outer layer 1 is prepared, it...
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