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Intelligent-monitored three-dimensional composite material pressure resistant gas cylinder and preparation method thereof

A composite material, intelligent monitoring technology, applied in mechanical equipment, pressure vessels, other household appliances, etc., to achieve the effect of improving integrity, eliminating mechanical weak points between layers, and predicting service life

Pending Publication Date: 2017-05-24
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of the application of two-dimensional wound composite materials, the weakness of the mechanical properties between the layers is gradually highlighted, and the leakage or damage under pressure during the application process is mainly generated between the layers, so the current hoop winding is changed. The two-dimensional fiber structure has been very necessary

Method used

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  • Intelligent-monitored three-dimensional composite material pressure resistant gas cylinder and preparation method thereof

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preparation example Construction

[0036] In the preparation of the metal liner, the metal liner is stamped and formed with a metal material selected from stainless steel, aluminum alloy, and titanium alloy, and then thread-shaped grooves with a depth of 1-3 mm are prepared on the outer surface of the metal liner.

[0037] In the preparation of the plastic interface layer and the pre-embedding of the strain sensing device, the fiber and the resin matrix are mixed and mixed uniformly by mechanical stirring; the plastic interface layer is processed by the injection molding process, and the metal liner layer is fixed in the mold, and at the same time , fix the strain sensing device at a specific position in the mold cavity, inject a uniformly mixed fiber resin melt into the mold cavity by injection molding, cool and mold and demould; wherein, the fiber length is 10-50mm, and the fiber includes the main fiber And auxiliary fiber, main fiber is carbon fiber, auxiliary fiber is a kind of in silicon carbide fiber, alum...

Embodiment 1

[0042] A specific preparation method for an intelligent monitoring three-dimensional composite material pressure-resistant gas cylinder, the steps are as follows:

[0043] (1) Preparation of the metal liner: the metal liner is stamped and formed with stainless steel, and the thickness of the metal liner is 5mm. After the metal liner is formed, a threaded groove with a depth of 1mm is prepared on its outer surface;

[0044] (2) Preparation of the plastic interface layer and pre-embedment of the strain sensing device: use polyurethane resin with a content of 40% as the resin matrix, mix it with the fiber, and mix it evenly by mechanical stirring. The average length of the fiber is 10mm, and the fiber includes The main fiber and auxiliary fiber, the main fiber is carbon fiber, the auxiliary fiber is silicon carbide fiber, the weight ratio of carbon fiber and silicon carbide fiber is 4:1; the plastic interface layer is processed by injection molding technology, and the stainless st...

Embodiment 2

[0048] A specific preparation method for an intelligent monitoring three-dimensional composite material pressure-resistant gas cylinder, the steps are as follows:

[0049] (1) Preparation of the metal liner: the metal liner is stamped and formed with aluminum alloy, and the thickness of the metal liner is 4mm. After the metal liner is formed, a threaded groove with a depth of 1mm is prepared on its outer surface;

[0050] (2) Preparation of the plastic interface layer and embedding of the strain sensing device: 40% polypropylene resin is used as the resin matrix, mixed with the fibers, and mixed evenly by mechanical stirring. The average length of the fibers is 20mm, and the fibers include the main body Fiber and auxiliary fiber, the main fiber is carbon fiber, the auxiliary fiber is alumina fiber, the weight ratio of carbon fiber and alumina fiber is 5:1; the plastic interface layer is processed by injection molding technology, and the aluminum alloy liner is fixed in the mold...

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Abstract

The invention discloses an intelligent-monitored three-dimensional composite material pressure resistant gas cylinder and a preparation method thereof, and relates to the field of novel composite material pressure resistant containers. The intelligent-monitored three-dimensional composite material pressure resistant gas cylinder comprises a metal liner layer, a plastic interface layer, a surface three-dimensional woven composite material layer and a medium access port, wherein the metal liner layer is an overall seamless structure; the plastic interface layer is positioned between the metal liner layer and the surface three-dimensional woven composite material layer, and is provided with a strain induction device in the thickness middle position; and the surface three-dimensional woven composite material layer is positioned on the outermost surface of the pressure resistant gas cylinder, includes a cylinder body section and a seal section, and is also provided with a strain induction device in the thickness middle or surface position. The pressure resistant gas cylinder eliminates interlayer mechanical weak points of a two-dimensional composite material, can monitor tiny deformation of different parts of the pressure resistant gas cylinder in the use process in real time, predicts the service life, and gives an alarm when meeting dangers.

Description

technical field [0001] The invention relates to the field of novel composite material pressure-resistant containers, in particular to an intelligent monitoring three-dimensional composite material pressure-resistant gas cylinder and a preparation method thereof. Background technique [0002] Compared with traditional pressure vessels and medium storage tanks, pressure vessels made of composite materials are light in weight, good in rigidity, corrosion-resistant, and strong in resistance to external force impacts, and can be flexibly shaped according to the requirements of working conditions. Design, pressure vessels made of composite materials have widely replaced metal pressure vessels and are used in various industries such as ships, automobiles, medical and health, and chemicals. [0003] The current composite material pressure vessel is mainly prepared by the two-dimensional fiber winding process. This hoop-wound composite fiber reinforced structure has the advantage of ...

Claims

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Application Information

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IPC IPC(8): B29D22/00B29C70/30F17C1/16F17C1/04G01B21/32G01B7/24G01B11/16
CPCF17C1/04F17C1/16G01B7/24G01B11/165G01B11/18G01B21/32B29C70/30B29D22/003Y02E60/32
Inventor 朱波于宽曹伟伟王永伟
Owner SHANDONG UNIV
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