Preparation methods for soluble core mould and nonmetal-lining or no-lining fibre winding container

A production method and soluble technology, applied in the field of soluble mandrel production, can solve problems such as difficult demoulding, low cost, and difficult demoulding, and achieve the effect of simple demoulding method and low cost

Inactive Publication Date: 2013-09-25
北京玻钢院复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Non-lined or non-metal lined containers often use metal mandrels, wood molds, plaster molds, etc. Metal mandrels are costly and heavy, and are not suitable for making certain inner surfaces with complex shapes, difficult demoulding o

Method used

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  • Preparation methods for soluble core mould and nonmetal-lining or no-lining fibre winding container
  • Preparation methods for soluble core mould and nonmetal-lining or no-lining fibre winding container
  • Preparation methods for soluble core mould and nonmetal-lining or no-lining fibre winding container

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Example Embodiment

[0030] The following describes the embodiments of the present invention in detail with reference to the drawings

[0031] See figure 1 , The soluble mandrel of the present invention includes a mandrel 1, a mortar mold 2, a mortar mold inner sleeve 3, and a locking ring 4. The mortar mold 2 is fixed on the mandrel 1 through the mortar mold inner sleeve 3 and locked by the locking ring 4 tight. The soluble core mold is the core mold during fiber winding, which can be demolded by washing with water after the composite material container is formed. The said mandrel 1, mortar mold inner sleeve 3 and locking ring 4 are made of metal materials. The mortar mold 2 is composed of quartz sand and polyvinyl alcohol, and the shape is generally a symmetrical rotating body, such as figure 2 As shown, it can be spherical, cylindrical, conical, etc. revolutions, which are consistent with the inner profile of the fiber-wound container.

[0032] 1. The manufacturing method of the soluble core mold...

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Abstract

A preparation method of a solube core mold comprises: blank moulding of a mortar mould: a) the ingredients of the mortar die consists of quartz sand, polyvinyl alcohol and water with a weight ratio of 100:1-2:6; b) the inner sleeve of the mortar mould is sleeved in a moulding mould, then adding the uniformly stirred ingredients of the mortar mould into the moulding mould until the moulding mould is full; c) demoulding; and d) solidifying; and a mandrel is penetrated in the mortar mould, the mandrel and the mortar mould are fixed in a circumferential direction by using the inner sleeve of the mortar mould and fixed in an axial direction by using a locking ring. A preparation method of a nonmetal-lining or no-lining fibre winding container comprises: infiltrating a fibre reinforced material in a resin solution, winding the fibre reinforced material on the soluble core mould in a circumferential direction and in a longitudinal direction by using a winder, solidifying, washing with water and demoulding. By using the container, demoulding can be finished by water washing. The soluble core mould is especially suitable for preparing composite material containers with a complex-shape internal profile as well as hard to demould, is low in cost and reusable in raw materials.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a manufacturing method of a soluble mandrel and a manufacturing method of using the mandrel as a winding mandrel to make a non-metallic lining or a fiber-wound container without a lining. Background technique [0002] Filament-wound composite material containers have the advantages of high specific strength and strong designability. The winding law can be designed according to the stress state of the product, and the performance of high specific strength and high specific modulus of fibers can be fully utilized. The core mold is the mold used for fiber winding, and the size and shape of the core mold also determine the inner surface of the winding container. Among them, the metal-lined container, such as a high-pressure gas cylinder, is directly wound on the metal liner. The metal lining is directly used as the mandrel. In this case, the metal lining plays the role of winding ...

Claims

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Application Information

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IPC IPC(8): B29C33/38B29C70/32
Inventor 张丽英肖文刚曹小平王嵘邢会霞李嘉生尤顺涛朱磊郭丹凤仙宝君
Owner 北京玻钢院复合材料有限公司
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