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Heat treatment molding method of thermoplastic wound pipe

A forming method and technology of winding tube, which are applied in the field of thermoplastic winding tube forming and heat treatment forming of thermoplastic winding tube, can solve the problems of easy cooling and solidification, poor bonding performance, etc., and achieve high strength and pressure resistance, high strength Effect

Inactive Publication Date: 2014-02-12
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, thermoplastic winding tubes use thermoplastic resins, which are easy to cool and solidify during the winding process, resulting in poor bonding performance between prepreg materials

Method used

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  • Heat treatment molding method of thermoplastic wound pipe
  • Heat treatment molding method of thermoplastic wound pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The prepreg tape material used for thermoplastic winding pipe is continuous glass fiber reinforced polypropylene prepreg tape, which is produced by Shanghai Jieshijie New Material (Group) Co., Ltd. Such as figure 1 As shown, the infrared online heating treatment method is adopted in the winding process, in which three infrared tube heaters are used to heat the prepreg tape before it is wound on the core mold 5, and the infrared heating cover 4 is used to heat the core mold 5. The temperature at the infrared heater 1 is set to 70-80°C, the temperature at the infrared heater 2 is set to 120-140°C, and the temperature at the infrared heater 3 is set to 160-190°C. temperature of the heater. The temperature of the infrared heating mantle 4 heated to the mandrel is set at 200-250°C. The above temperatures are the measured temperatures when the prepreg is brought out of the heater, and the temperature setting of the heater is adjusted accordingly according to the winding spe...

Embodiment 2

[0022] The prepreg tape material used for thermoplastic winding pipe is continuous glass fiber reinforced polypropylene prepreg tape, which is produced by Shanghai Jieshijie New Material (Group) Co., Ltd. During the winding process, the heated and melted prepreg tape is directly wound on the mandrel, and then the mandrel with the wrapped prepreg tape is heated in an oven at 200°C for 1.5 hours, taken out, and rolled with a pressure of 0.4MPa. Wherein, three infrared tube heaters are used to heat the prepreg tape before it is wound on the mandrel 5 . The temperature of infrared heater 1 is set to 70-80°C, the temperature of infrared heater 2 is set to 120-140°C, and the temperature of infrared heater 3 is set to 160-190°C. The above temperatures are all when the prepreg is brought out of the heater The measured temperature, the temperature setting of the heater is adjusted accordingly according to the winding speed. The properties of the obtained thermoplastic FRP wound pipe a...

Embodiment 3

[0024] The prepreg tape material used for thermoplastic winding pipe is continuous aramid fiber reinforced polyethylene prepreg tape, which is produced by Shanghai Jieshijie New Material (Group) Co., Ltd. use as figure 1 In the shown infrared online heating treatment method, the infrared heater adopts an infrared ceramic sheet. Wherein, before the prepreg tape is wound on the mandrel 5, three infrared ceramic heaters are used to heat it, and the mandrel 5 is heated by an infrared ceramic mantle 4. The temperature at the infrared heater 1 is set to 50-60°C, the temperature at the infrared heater 2 is set to 90-100°C, and the temperature at the infrared heater 3 is set to 140-160°C. temperature of the heater. The temperature of the infrared heating mantle 4 heated to the mandrel is set at 190-220°C. The above temperatures are the measured temperatures when the prepreg is brought out of the heater, and the temperature setting of the heater is adjusted accordingly according to ...

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Abstract

The invention relates to a heat treatment molding method of a thermoplastic wound pipe. The heat treatment molding method comprises the following steps of 1, carrying out pre-heating and melting on a prepreg tape by an infrared heater, 2, (1), winding the pre-heated and melted prepreg tape on a core and heating the core, or (2), directly winding the melted prepreg tape on the unheated core, putting the core with the melted prepreg tape into an oven and carrying out heating so that the prepreg tape wound on the core and a prepreg tape to be wound can be bonded well, and 3, carrying out rolling on the surface of the tube obtained by the step 2 by a compression roller so that gaps between the prepreg tapes are less and tube strength is high. Compared with the prior art, the heat treatment molding method can solve the problem of poor adhesion of prepreg tape material layers in thermoplastic wound pipe winding and can prepare the high-performance thermoplastic wound pipe.

Description

technical field [0001] The invention relates to a molding method of a thermoplastic winding pipe, in particular to a heat treatment molding method of a thermoplastic winding pipe, and belongs to the field of molding and processing of thermoplastic composite materials. Background technique [0002] Due to its environmental protection concept, thermoplastic composite materials can be recycled and reused, and will occupy a dominant position in the field of composite materials in the future. At present, continuous glass fiber reinforced thermosetting resin winding pipes (referred to as thermosetting FRP pipes) are used in the field of winding pipes. It will be difficult to recycle and dispose of thermosetting FRP pipes after decades of use. Therefore, a thermoplastic winding pipe is developed to replace thermosetting FRP pipes. has great significance. However, due to the characteristics of thermosetting resin and thermoplastic resin, that is, thermosetting resin is generally li...

Claims

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Application Information

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IPC IPC(8): B29C53/60B29C53/84B29L23/00
Inventor 徐龙彬
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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