Thermoplastic composite pipe manufacturing device and method

Abstract

The invention discloses a thermoplastic composite pipe manufacturing device and method. The thermoplastic composite pipe manufacturing device comprises a mandrel, an internal pressurizing mechanism, a heating mechanism and an upper mold and a lower mold, wherein the mandrel is an inner mold core and is provided with a tubular surface and an inner diameter; the two ends, close to the mandrel, of the inner diameter are provided with inclined surfaces with lower outer parts and higher inner parts; and the middle part of the inner diameter is provided with a polygonal brake hole; the mandrel is formed by splicing a plurality of combined pieces in the longitudinal axis direction, and the surface of the mandrel is coated with carbon fiber prepreg; the internal pressurizing mechanism is arranged on the inner diameter of the mandrel and can apply pressure to the combined pieces outwards in the radial direction from the inner diameter; the heating mechanism is arranged in the internal pressurizing mechanism; the upper mold and the lower mold are provided with mold cavities which correspond to the mandrel after being closed and can allow the mandrel to be placed in the mold cavities; the upper mold and the lower mold are respectively provided with a plurality of water way holes used for circulating liquid to be filled, so that the upper mold and the lower mold are cooled; resin of the carbon fiber prepreg is melted and jointed through pressurization and heating to generate a thermoplastic composite pipe with a thickness; and therefore, the upper mold and the lower mold do not need to be provided with a heating source to improve the structural strength and heating efficiency of the molds.

Description

technical field [0001] The invention relates to a manufacturing technology of a thermoplastic composite pipe, in particular to a heating rod that can be embedded in the inner mold core, so that the upper and lower molds do not need to be equipped with a heating source, and can improve the structural strength of the mold and improve the heating efficiency. A manufacturing device and a manufacturing method of a plastic composite material pipe. Background technique [0002] Chinese patent CN107081922A discloses a long-distance long-distance pipe made of large-diameter thermoplastic composite material and its manufacturing method and device. The tight roller maintains proper tension, and then the wire feeding motor passes through two guide pipes to guide the two into the 3D printer head, in which the reinforcing fiber is introduced into the hollow screw channel inside the 3D printer head, and the polymer wire is introduced into the cavity of the machine head and wound on the sc...

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Problems solved by technology

[0003] The aforementioned technology does not require the use of metal materials, and has the characteristics of light weight, high temperature resistance, corrosion resistance, good flexibility, good air tightness, high internal and external pressure levels, and convenient installation. Its inner wall is smooth, large diameter, high internal and external pressure levels can be Obtain high flow rate and flow rate, especially suitable for long oil and gas pipeline applications, but not suitable for very short part forming cycle and high impact strength applications

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