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Manufacturing method of two-dimensional braided suture composite material gas cylinder

A composite material and manufacturing method technology, applied in textiles and papermaking, sewing equipment, sewing machine components, etc., can solve problems such as easy delamination, and achieve the effect of enhancing mechanical properties

Inactive Publication Date: 2019-05-21
JIANGSU GOLD BRIDGE SALT & CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the composite gas cylinder is mainly a wound type gas cylinder, which is obtained by winding a certain thickness of resin-impregnated fibers on the aluminum liner after curing and molding. This type of gas cylinder is still arranged in a single layer of fibers in the thickness direction. , the connection between layers only depends on the resin matrix, which is prone to problems such as delamination in subsequent use

Method used

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  • Manufacturing method of two-dimensional braided suture composite material gas cylinder

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Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, a method for manufacturing a two-dimensional braided and sutured composite gas cylinder, the method includes the following steps:

[0023] (1) Prepare a thin-walled metal liner with aluminum alloy as the gas cylinder liner 3, and use the gas cylinder liner 3 as the mandrel. The gas cylinder liner 3 has a diameter of 200 mm and a thickness of 2 mm. Weave back and forth on the machine to obtain a prefabricated part with an overall network structure; when weaving, choose carbon fiber as the weaving yarn, polyimide fiber or Kevlar fiber as the shaft yarn, set the weaving angle to 60°, and weave 20 layers back and forth on the mandrel to form Multi-layer braiding layer 1, the thickness of the prefabricated part is 10mm;

[0024] (2) Use the curved needle suture method, use Kevlar fiber as the suture line 2, set the stitch distance to 5mm, and the line distance to 9mm, and sew the prefabricated parts obtained in the first step into a whole; refer to figure 1 ; ...

Embodiment 2

[0027] Embodiment 2, a method for manufacturing a two-dimensional braided and sutured composite gas cylinder, the method includes the following steps:

[0028] (1) Prepare a thin-walled metal liner with aluminum alloy as the gas cylinder liner 3, use the gas cylinder liner 3 as the mandrel, the diameter of the gas cylinder liner 3 is 300mm, and the thickness is 3mm, on the two-dimensional braiding machine Weave back and forth to obtain a prefabricated part with an overall network structure; when weaving, choose carbon fiber as the weaving yarn, polyimide fiber or Kevlar fiber as the shaft yarn, set the weaving angle to 70°, and weave 40 layers back and forth on the mandrel to form a multi- Layer braiding layer 1, the thickness of the prefabricated part is 12mm;

[0029] (2) Use the curved needle suture method, use Kevlar fiber as the suture line 2, set the stitch distance to 6mm, and the line distance to 11mm, and sew the prefabricated parts obtained in the first step into a w...

Embodiment 3

[0032] Embodiment 3, a method for manufacturing a two-dimensional braided and sutured composite gas cylinder, the method includes the following steps:

[0033] (1) Prepare a thin-walled metal liner with aluminum alloy as the gas cylinder liner 3, use the gas cylinder liner 3 as the mandrel, the diameter of the gas cylinder liner 3 is 250mm, and the thickness is 2mm, on the two-dimensional braiding machine Weave back and forth to obtain a prefabricated part with an overall network structure; when weaving, choose carbon fiber as the weaving yarn, polyimide fiber or Kevlar fiber as the shaft yarn, set the weaving angle to 65°, and weave 30 layers back and forth on the mandrel to form a multi-layer Layer braiding layer 1, the thickness of the prefabricated part is 11mm;

[0034] (2) Use the curved needle suture method, use Kevlar fiber as the suture line 2, set the stitch distance to 5mm, and the line distance to 10mm, and sew the prefabricated parts obtained in the first step int...

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Abstract

The invention discloses a manufacturing method of a two-dimensional braided suture composite material gas cylinder. The manufacturing method comprises the following steps that using a cylinder liner as the core mold, the required woven layer is weaved back and forth on a two-dimensional knitting machine; the multi-layer woven layer prepared in the step one is sewed into a whole through adopting asewing method; a resin is filled according to a required ratio by adopting an RTM molding process, and curing and forming in a curing furnace are carried out; and the cured product is carried out subsequent treatment after demolded. The manufacturing method fully utilizes the advantages of net size forming of two-dimensional weaving; and the sewing method is used to sew the layered fabric into a whole body, which enhances the Z-direction strength and effectively solves the delamination problem of the subsequent composite material application. The method provided by the invention is simple, practical and can effectively improve the quality of the manufactured parts.

Description

technical field [0001] The invention relates to the field of novel composite material gas cylinders, in particular to a two-dimensional braided and stitched composite material gas cylinder and a manufacturing method thereof. Background technique [0002] Composite gas cylinders have outstanding physical, mechanical and thermal properties, especially the advantages of light weight, high strength, high specific modulus, high specific strength, designable material properties, fatigue resistance, and corrosion resistance. They are used in transportation, medium storage, It has a wide range of applications in aerospace, emergency rescue, medical and health and other fields. [0003] At present, the composite gas cylinder is mainly a wound type gas cylinder, which is obtained by winding a certain thickness of resin-impregnated fibers on the aluminum liner after curing and molding. This type of gas cylinder is still arranged in a single layer of fibers in the thickness direction. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/54D05B1/06D05B85/06
Inventor 王士华胡爱林张爽李志强
Owner JIANGSU GOLD BRIDGE SALT & CHEM GRP
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