Unlock instant, AI-driven research and patent intelligence for your innovation.

High pressure epoxy glass steel pipeline and preparation method thereof by adding glass fiber fabric

A technology of epoxy glass fiber reinforced plastic and glass fiber, which is applied in the field of glass fiber reinforced plastic pipes, which can solve the problems that the pipe head and tail cannot be handled, the winding time is long, and the cutting volume is large, so as to achieve the improvement of fatigue test results, the reduction of industrial waste, and the reduction of cutting weight Effect

Active Publication Date: 2015-12-23
泰山玻璃纤维淄博有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The transition area of ​​the female thread at the end of the FRP pipe is the weak area of ​​the internal pressure damage of the pipe. More than 90% of this area is destroyed in the destructive test and long-term hydrostatic pressure test of the pipe, which leads to the failure of the pipe
[0006] (2) Winding takes a long time, the production efficiency is low, the higher the pressure level, the more winding layers, the more time it takes
[0007] (3) In order to facilitate the linear control of the two ends of the FRP pipe, the cutting volume exceeds 15% of the gross weight of the pipe, which indirectly results in low production capacity
The head and tail of the high-pressure epoxy fiberglass pipe can be cut off to a length of up to 80cm. The cutting volume is large and the labor cost is high. The cut pipe head and tail cannot be disposed of, resulting in a large amount of industrial waste
[0008] Considering both technical and economic aspects, there is no effective way to deal with the pipe head and pipe tail at this stage.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High pressure epoxy glass steel pipeline and preparation method thereof by adding glass fiber fabric
  • High pressure epoxy glass steel pipeline and preparation method thereof by adding glass fiber fabric
  • High pressure epoxy glass steel pipeline and preparation method thereof by adding glass fiber fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The high-pressure epoxy FRP pipeline described in this embodiment is made of the following raw materials in parts by weight:

[0034]

[0035] Described preparation method comprises the steps:

[0036] (1) Glue preparation: Add methyltetrahydrophthalic anhydride, benzyltriethylammonium chloride, and wetting agent to bisphenol A epoxy resin in sequence, stir evenly, and then transport to the winding machine;

[0037] (2) Tube body winding: immerse the direct yarn in the glue solution prepared in step (1), lay it according to the designed line shape, and form a winding layer on the surface of the mandrel, and form a layer of winding after multiple strokes to obtain a tube body;

[0038] (3) Preparation and addition of glass fiber fabric: cut the glass fiber fabric according to the width of the direct yarn, install it on the cloth adding and dipping device, the first layer of laying is single cut point, the pitch is the width of a single piece of yarn, and the winding ...

Embodiment 2

[0042] The high-pressure epoxy FRP pipeline described in this embodiment is made of the following raw materials in parts by weight:

[0043]

[0044] Described preparation method comprises the steps:

[0045] (1) Glue preparation: Add methyltetrahydrophthalic anhydride, benzyltriethylammonium chloride, and wetting agent to bisphenol A epoxy resin in sequence, stir evenly, and then transport to the winding machine;

[0046] (2) Tube body winding: immerse the direct yarn in the glue solution prepared in step (1), lay it according to the designed line shape, and form a winding layer on the surface of the mandrel, and form a layer of winding after multiple strokes to obtain a tube body;

[0047] (3) Preparation and addition of glass fiber fabric: cut the glass fiber fabric according to the width of the direct yarn, install it on the cloth adding and dipping device, the first layer of double tangent points, the pitch is the width of a single piece of yarn, and the winding angle...

Embodiment 3

[0051] The high-pressure epoxy FRP pipeline described in this embodiment is made of the following raw materials in parts by weight:

[0052]

[0053] Described preparation method comprises the steps:

[0054] (1) Glue preparation: Add methyltetrahydrophthalic anhydride, benzyltriethylammonium chloride, and wetting agent to bisphenol A epoxy resin in sequence, stir evenly, and then transport to the winding machine;

[0055] (2) Tube body winding: immerse the direct yarn in the glue solution prepared in step (1), lay it according to the designed line shape, and form a winding layer on the surface of the mandrel, and form a layer of winding after multiple strokes to obtain a tube body;

[0056] (3) Preparation and addition of glass fiber fabric: cut the glass fiber fabric according to the width of the direct yarn, install it on the cloth adding and dipping device, the first layer of double tangent points, the pitch is the width of a single piece of yarn, and the winding angle...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a glass steel pipeline, in particular to a high pressure epoxy glass steel pipeline and a preparation method thereof by adding glass fiber fabric. The high pressure epoxy glass steel pipeline is prepared from the following raw materials in parts by weight: 100 parts of bisphenol A-type epoxy resin, 70 to 85 parts of curing agent, 1.5 to 4 parts of accelerant, 0.22 to 0.60 parts of wetting agent, 450 to 560 parts of direct yarn and 24 to 60 parts of glass fiber fabric. The glass fiber fabric is added into the raw materials, hydrostatic test results, a Tg value and resin content of the high pressure epoxy glass steel pipeline obtained through the preparation method can reach industry standard requirements; results of a burst pressure test and a fatigue test are greatly improved; the cutting weights of a pipe head and a pipe end are greatly lowered; the preparation method is simple in process and easy to realize.

Description

technical field [0001] The invention relates to a fiberglass pipe, in particular to a high-pressure epoxy fiberglass pipe and a method for preparing the same by adding glass fiber fabric. Background technique [0002] High-pressure epoxy fiberglass pipe has the characteristics of high temperature resistance and strong corrosion resistance, and it has small thermal conductivity, long service life, strong product adaptability, convenient installation and transportation, and low maintenance cost. It is widely used in oil, natural gas transportation, Chemical treatment and sewage treatment and other fields. [0003] At present, most high-pressure FRP pipes use epoxy resin as the matrix, glass fiber as the reinforcing material, and are manufactured by fixed-length reciprocating fiber winding molding and internal heating and curing processes. The spiral winding of glass fiber is the result of the combined motion of the rotating motion of the mandrel of the main shaft of the glass...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/04C08K7/14B29C70/32
Inventor 王建刘强李超
Owner 泰山玻璃纤维淄博有限公司