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Uniaxial weft-knitted fabric and manufacturing method

A weft-knitted fabric and uniaxial technology, which is applied in weft-knitting, textiles, papermaking, knitting, etc., can solve the problems of limiting the elasticity of warp-knitted uniaxial fabrics and failing to meet the performance requirements of petroleum expansion pipe materials.

Inactive Publication Date: 2021-05-07
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The warp knitting uniaxial mainly fixes the reinforcing yarn in the weft direction by knitting binding loops and the warp direction auxiliary layer. Although the fabric has high-strength yarns along the weft direction, due to the existence of the warp direction auxiliary layer, It greatly limits the elasticity of the warp-knitted uniaxial fabric along the warp direction, and cannot meet the performance requirements of expansion pipe materials used in oil development

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
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  • Uniaxial weft-knitted fabric and manufacturing method

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Embodiment 1

[0019] Embodiment 1: As a kind of example of specific implementation, provide a kind of uniaxial weft knitting fabric, comprise: as the high-strength polyester weft flat knitting structure of binding system, as the T300 carbon fiber lining warp yarn system that improves warp direction high strength, its It is characterized in that the lining warp yarns are interlaced between the sinker arcs of the weft plain stitches in a parallel and straight manner, and the weft plain stitches are looped by knitting needles, and then formed by threading the loops. Preferably, the yarn used in the binding system is 75D×2 high-strength polyester. Preferably, the yarn used in the lining warp yarn system is T300-12K carbon fiber. The preparation method of described uniaxial weft knitted fabric is as follows:

[0020] (1) Needle row: Select a flat knitting machine with a machine number of 6G, design the number of needles to be 60, and push it to the working position to ensure that the knitting n...

Embodiment 2

[0024] Embodiment 2: As an example of a specific embodiment, a kind of uniaxial weft knitted fabric is provided, including: a weft plain stitch as a binding system, as a carbon fiber and glass fiber hybrid interlining system that improves high strength in the warp direction, It is characterized in that the lining warp yarns are interlaced between the sinker arcs of the weft plain stitches in a parallel and straight manner, and the weft plain stitches are looped by knitting needles, and then formed by threading the loops. Preferably, the yarn used in the binding system is 48-count aramid spun yarn. Preferably, the yarns used in the lining warp yarn system are T300-6K carbon fiber and 1560dtex glass fiber. The preparation method of described uniaxial weft knitted fabric is as follows:

[0025] (1) Needle row: Select a flat knitting machine with a machine number of 6G, design the number of needles to be 60, and push it to the working position to ensure that the knitting needles ...

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
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Abstract

The invention provides a uniaxial weft-knitted fabric with high weft extension and high warp strength and a manufacturing method. Lining warp yarns are interlaced between sinker loops of a weft plain stitch weave in a parallel and straight manner, the weft plain stitch weave forms loops through knitting needle yarn bending, and a binding system is formed through sleeving of the loops, so that the purposes of high extension in the weft direction and high strength in the warp direction of the product are achieved, therefore, the material can be used as an expansion pipe material for oil exploitation, and the requirements of axial enhancement and high extension in the radial direction of an expansion pipe are met. The manufacturing method of the product mainly comprises the following steps of (1) arranging needles; (2) arranging lining warp yarns; (3) threading, braiding and knitting yarns; and (4) knitting.

Description

technical field [0001] The invention relates to knitting and weft knitting technology, in particular to a uniaxial weft-knitted fabric with high weft extension and high warp strength and a manufacturing method, which belongs to the field of advanced textile technology. Background technique [0002] In the middle and late stages of oil exploitation, oil wells often suffer from damage, which seriously affects the progress of oil extraction. Therefore, new and effective workover materials and technologies are imminent. The expansion tube technology can effectively solve the above problems. At present, the expansion tube has been applied in offshore oil production, which greatly saves the production cost. As the basic skeleton material of the expansion tube, it is not only required to have very high strength along the axial direction of the tube to ensure the durability of the material, but also requires the material to have very high elasticity in the radial direction to ensure...

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
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Application Information

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IPC IPC(8): D04B1/10
CPCD04B1/102
Inventor 齐业雄石艳锦刘梁森邵润泽
Owner TIANJIN POLYTECHNIC UNIV
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