Method and device for manufacturing continuous filament reinforced plastic pressure pipe

A technology of reinforced plastics and continuous fibers, which is applied in the direction of tubular articles, other household appliances, household appliances, etc., to achieve the effect of accurate and reliable size, broad market prospects, and guaranteed stability

Inactive Publication Date: 2019-01-04
孝感有为科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the quality of the inner surface of the product needs to be further improved

Method used

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  • Method and device for manufacturing continuous filament reinforced plastic pressure pipe
  • Method and device for manufacturing continuous filament reinforced plastic pressure pipe
  • Method and device for manufacturing continuous filament reinforced plastic pressure pipe

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Embodiment Construction

[0039] Further description will be given below in conjunction with the embodiments shown in the accompanying drawings.

[0040] The cross-section of the continuous fiber reinforced plastic pressure pipe manufactured by the present invention is as Figure 8 As shown, the intermediate reinforcement layer of the pressure pipe is composed of at least one axially stretched pre-impregnated plastic fiber tape 300 (the width and thickness of the pre-impregnated plastic fiber tape are determined according to requirements) and at least one circumferential helical (preferably a helix angle of 40° -89 degrees) coated pre-impregnated plastic fiber tape 200, the two sides of the middle reinforcement layer are the plastic inner wall layer 400 (ie, the inner tube) and the plastic outer wall layer 100 which are connected to the middle reinforcement layer through extrusion molding. The axially stretched pre-impregnated plastic fiber tape directly bears the pulling force during manufacture, so t...

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Abstract

The invention relates to a method and device for manufacturing continuous filament reinforced plastic pressure pipe. The pipe manufactured through the method and device has the advantages of being high in mechanical strength, smooth in inner surface and accurate in size and realizing material saving. In the technical scheme, the method for manufacturing the continuous filament reinforced plastic pressure pipe includes the following steps that 1, extruded molten materials of a plastic extruding machine enter a pipe mold, come out of the mold and enter a vacuum box to be cooled and subjected toopen form fixing, so that an inner pipe body is formed; 2, the inner pipe body output by the vacuum box enters an axial laying station at constant speed, and a supporting rod with the approximate diameter gradually penetrates into the cavity of the inner pipe body so that the inner pipe body can not collapse during melting; meanwhile, one or more axial-extension pre-impregnation plastic fiber bands are laid on the surface of the outer circumference of the inner pipe body, wherein the temperature of the axial laying station is 120-220 DEG C, so that the pre-impregnation plastic fiber bands adhere to the inner pipe body.

Description

technical field [0001] The invention relates to a manufacturing method and a manufacturing device of a continuous fiber reinforced plastic pressure pipe. Background technique [0002] As an innovative variety of pipelines, continuous fiber reinforced plastic pressure pipes have been widely used in fluid transportation occasions, such as river water diversion, urban water supply, central heating, central air conditioning, gas transportation, crude oil transportation, etc. However, due to the high manufacturing requirements and difficult quality control of continuous fiber reinforced plastic pressure pipes, it has always been a technical research topic in the industry. [0003] Chinese patent application (application number 201810349669.X) discloses a method for manufacturing a continuous fiber-reinforced plastic pressure pipe; the method includes: 1) laying at least one inner pre-impregnated plastic fiber tape on the outer circumferential surface of a cylindrical mandrel, Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D23/00
CPCB29D23/001
Inventor 谈刚强
Owner 孝感有为科技有限公司
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