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A manufacturing method for a continuous fiber winding reinforced thermoplastic tube and a winding device

A technology of continuous fiber and winding reinforcement, applied in the field of manufacturing method and winding device of continuous fiber winding reinforced thermoplastic pipe, can solve the problems of poor smoothness of the outer wall of the pipe, secondary damage of the continuous fiber, and reduction of the performance of the continuous fiber, etc., to achieve The effect of small gaps, good firmness, and no reduction in performance and strength

Inactive Publication Date: 2013-08-07
TAIZHOU JIADEBAO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the above problems in the existing technology, and propose a continuous fiber winding reinforced thermoplastic pipe manufacturing method and winding device. The technical problem to be solved is: the existing continuous fiber winding reinforced thermoplastic pipe manufacturing process During the preparation process, it is easy to cause secondary damage to the continuous fiber, resulting in hairiness or breakage, which reduces the performance of the continuous fiber, and the smoothness of the outer wall of the prepared pipe and the firmness of the pipe are poor, and the strength performance is unstable.

Method used

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  • A manufacturing method for a continuous fiber winding reinforced thermoplastic tube and a winding device
  • A manufacturing method for a continuous fiber winding reinforced thermoplastic tube and a winding device
  • A manufacturing method for a continuous fiber winding reinforced thermoplastic tube and a winding device

Examples

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Embodiment 1

[0037] This example is mainly used to prepare a continuous fiber winding reinforced thermoplastic pipe with a three-layer structure of an inner lining layer, a structural layer and an outer protective layer. The specific process is as follows:

[0038] First, the clamping part: the mold core 4 is set on the clamp 3 of the winding device, the inner liner is a thermoplastic pipe made of PP (high polymer polypropylene) material and has been extruded, and it is sleeved on the mold core 4, the coiled continuous fiber tape is positioned on the tensioning device, and then the continuous fiber tape passes through the tensioning device and the heating area of ​​the ceramic infrared heater and is melted and connected with the inner lining layer, and the continuous fiber tape is controlled to pass through the tensioning device The tension after tensioning is 10N-35N.

[0039] Secondly, rotary winding and heating: the winding device is used to drive the core 4 to rotate and move along its...

Embodiment 2

[0042] This example is mainly used to prepare a continuous fiber winding reinforced thermoplastic pipe with a three-layer structure of inner lining layer, structural layer and outer protective layer. The specific preparation process is basically the same as that of Example 1, and the difference lies in: It is a thermoplastic pipe made of PE (high-density polyethylene) material and has been extruded. During the preparation process, the winding speed of the continuous fiber tape is controlled at 5m / min-20m / min, and a stainless steel heater is used for heating during the winding process. The heating temperature is 450-600°C. The prepared pipe does not produce air bubbles, the smoothness of the outer wall of the pipe and the firmness of the pipe are good, the continuous fiber is not damaged or broken, and the overall pipe strength, stiffness, impact resistance and toughness of the pipe are good.

Embodiment 3

[0044] This example is mainly used to prepare a continuous fiber winding reinforced thermoplastic pipe with a three-layer structure of inner lining layer, structural layer and outer protective layer. The specific preparation process is basically the same as that of Example 1, and the difference lies in: It is a thermoplastic pipe made of nylon material and has been extruded. During the preparation, three continuous fiber strips are used side by side and spirally wound on the inner liner. Heat, the preheating temperature is 450-500°C, and the ceramic infrared heater is used to heat during the winding process, the heating temperature is 700-750°C, and the winding speed of the continuous fiber tape is controlled to be 3m / min-18m / min. The prepared pipe does not produce air bubbles, the smoothness of the outer wall of the pipe and the firmness of the pipe are good, the continuous fiber is not damaged or broken, and the overall pipe strength, stiffness, impact resistance and toughnes...

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Abstract

The present invention provides a manufacturing method for a continuous fiber winding reinforced thermoplastic tube and a winding device, belonging to the technical field of tube manufacturing, and solving the problem of poor outer wall smoothness and poor robustness, and unstable strength properties of prepared tubes, because continuous fiber performances are reduced due to hairiness or breakage generated from secondary damages of continuous fiber which is easily produced in the prior manufacturing process of continuous fiber winding reinforced thermoplastic tube. The manufacturing method for the continuous fiber winding reinforced thermoplastic tube comprises the following steps of: A, loading and clamping members; B, rotation winding and heating; C, repeating the above step B; D, cooling and stripping. According to the manufacturing method for the continuous fiber winding reinforced thermoplastic tube, a molded continuous fiber band is adopted for direct winding through the winding device, extrusion and dipping are not required, and secondary damages may not be caused to produce hairiness or fiber breakage, thus ensuring the performances and strength of the continuous fiber, and good strength, stiffness, impact resistance and toughness of the prepared tube.

Description

Technical field [0001] The invention belongs to the technical field of pipeline production, and relates to a manufacturing method and a winding device for a continuous fiber-wound reinforced thermoplastic pipe. Background technique [0002] Plastic pipes are mainly divided into thermoplastic pipes and thermosetting plastic pipes. Thermoplastic plastic refers to plastic that can be repeatedly heated, softened and cooled to harden within a specific temperature range. There are many types of thermoplastic pipes, such as PE pipes, PVC pipes, PP pipes, etc. Thermoplastic pipes have the characteristics of easy recycling, strong impact resistance, good fracture toughness, short molding cycle, and high production efficiency. However, their strength and elastic modulus are low, making it difficult to adapt to the requirements of large diameter, high stiffness, and high pressure. Thermoset plastics refer to plastics that can solidify or have infusible properties under heat or other c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C53/64B29L23/00
Inventor 阮金刚
Owner TAIZHOU JIADEBAO TECH
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