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Filament winding molding method for a tubeless, oblate ellipsoidal pressure vessel

A pressure vessel, winding molding technology, applied in the field of filament winding molding of oblate ellipsoid pressure vessels and no barrel body, can solve the problems such as the asymmetric surface of the molding filament winding head, achieve small axial deformation and improve production. Efficiency and small shrinkage range

Active Publication Date: 2016-06-29
HARBIN FRP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that there is no method for forming an oblate ellipsoidal pressure vessel with an asymmetrical fiber-wound head and no barrel body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0039] Specific implementation mode 1: A fiber winding molding method for a tubeless body and oblate ellipsoidal pressure vessel according to this embodiment, the specific winding molding steps are as follows:

[0040] Step 1. Install the mold:

[0041] Fix and set the sand core mold for winding the cylinderless and oblate ellipsoidal pressure vessel on the metal shaft, and then install the metal shaft on the spherical winding machine;

[0042] Step 2. Coating the lining layer:

[0043] Cover the rubber sheet lining layer manually on the surface of the sand core mold, and the thickness of the rubber sheet lining layer is 0.8-2mm;

[0044] Step 3. Paste high silica fiber cloth on the outer surface of the inner lining layer:

[0045] Soak the high silica fiber cloth with epoxy resin winding glue, paste it on the outer surface of the inner lining, the thickness of the high silica fiber cloth is 0.06mm;

[0046] Step 4. Set the spherical winding program:

[0047] Install the c...

specific Embodiment approach 2

[0072] Embodiment 2: The epoxy resin wrapping glue of this embodiment is prepared from epoxy resin and curing agent in a weight ratio of 100:86. Such a setting is convenient for ensuring a more stable work of the mechanism. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0073] Specific implementation method three: the step-by-step reaming spherical winding carried out on the spherical winding machine in step ten of this embodiment, set the spherical winding program: install the carbon fiber on the fiber tensioner, and the winding angle is 25°, 40°, 55° ° or 70°, the winding speed ratio is 0.0057-0.02, the hole expansion radius is 30-250mm, and the carbon fiber covers the entire winding mold to form a winding cycle. With such setting, the design of the structural parameters of the straight spring is very simple, the price is cheap, the weight is light, and the processing difficulty is very low. It is convenient to change the variation range of the resistance provided by changing the spring parameters. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a fiber winding molding method for a cylinderless body and oblate ellipsoidal pressure vessel, which relates to a fiber winding molding method. The present invention solves the problem that there is no method for forming an oblate ellipsoidal pressure vessel with an asymmetrical surface of a fiber-wound head and a barrel-less body. The present invention carries out fiber winding molding according to the following sequence: install the mold; cover the inner lining layer; paste high silica fiber cloth on the surface of the inner lining layer; set the spherical winding program; spherical winding; Winding program; longitudinal winding; setting spherical winding program; hoop winding; baking semi-finished products; baked semi-finished products out of the oven, fixed on the horizontal winding machine; setting longitudinal winding program; longitudinal winding: curing; demoulding. The fiber winding molding method of the invention not only ensures the precision and apparent quality of the product, but also improves the production efficiency, reduces the cost and is easy to demould. The invention is used for fiber winding of tubeless body and oblate ellipsoidal pressure vessel.

Description

technical field [0001] The invention relates to a fiber winding forming method for a pressure vessel, in particular to a fiber winding forming method for a cylinderless, oblate ellipsoidal pressure vessel. Background technique [0002] Existing filament-wound spherical pressure vessels can be divided into common types such as vessels with equal pole holes and unequal pole holes in terms of structure. Since the curved surface is spherical, the doffing can be uniform and stable during the vessel winding process. The pressure of the designed vessel can be adjusted through different winding layer thicknesses; however, with the development requirements of the aerospace industry, more and more oblate ellipsoidal pressure vessels with asymmetrical front and rear heads and no barrel body are urgently needed. Need to develop. Since the fibers cannot be doffed stably during the winding molding process, there is currently no method for forming an oblate ellipsoidal pressure vessel wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D22/00B29C53/56B29C53/80
Inventor 王洪运高小茹马国峰姜广祥杨丽萍费春东马俊龙
Owner HARBIN FRP INST
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