Fiber-reinforced thermosetting plastic corrugated pipe production equipment and process

Abstract

The invention provides fiber-reinforced thermosetting plastic corrugated pipe production equipment and a fiber-reinforced thermosetting plastic corrugated pipe production process, and belongs to the field of pipe body manufacture. The outer wall of a core model is designed as a waveform curved surface which is adaptive to the inner wall of a corrugated pipe and twined by a glue rope, the wave peak of the waveform curved surface expands in the axial direction in a spiral manner, a walking trolley conducts reciprocating movement in the axial direction along the core model, pressing wheels used for conducting compressing formation on the wave trough positions corresponding to the waveform curved surface are arranged on the walking trolley, the pressing wheels are driven by vertical lifting cylinders to move up and down, and through the coordination of the core model and the pressing wheels, the fiber-reinforced thermosetting plastic corrugated pipe production is finished; the core model adopts a detachable structure according to design, so that a set of core model can be suitable for producing the pipes with different specifications. The production equipment is simple in structure, low in cost, simple and convenient for production process operation and convenient to realize efficient production realization, the axial strength, circumferential strength and the pressure-bearing capability of the produced corrugated pipe are further improved, and the corrugated pipe has excellent heat dissipation performance when being used as an electric force pipe.

Description

technical field [0001] The invention relates to the technical field of pipe body manufacturing, in particular to a production equipment and a production process of fiber-reinforced thermosetting plastic corrugated pipes. Background technique [0002] Fiber-reinforced thermosetting plastic pipes are widely used in petrochemical, electric power, municipal renovation and other fields due to their excellent corrosion resistance and excellent mechanical properties. The pipe body of fiber-reinforced thermosetting plastic pipe is wound by several layers of fibers impregnated with thermosetting resin. During production, the multi-layer fibers are impregnated with thermosetting resin and then wound on the outer surface of the mandrel, heated, melted and solidified. The number of layers impregnated with thermosetting resin depends on the thickness of the processed pipe. [0003] Existing thermosetting plastic pipes are mostly solid-walled structures, and the mandrels used are mostly ...

AI Technical Summary

Problems solved by technology

[0004] First, due to the defects of the process itself and unscrupulous merchants’ shoddy, substandard and other factors, the quality of the power tube is uneven, and the fiber on the inner wall often scratches when the cable is threaded, resulting in delamination of the fiber, and the fiber is entangled outside the cable. The more entanglement, the cable can neither advance nor retreat, resulting in the failure of cable threading, and the purpose of safe and fast cable threading cannot be achieved;

[0005] Second, because the inner wall of the tube is mostly a flat wall structure, when the cable basically fills the internal space, the space for heat dissipation is very small. The solution to this problem is usually to use expensive high thermal conductivity materials to produce tubes or use larger cables. The diameter of the pipe is often the result of economic waste and material waste;

Images