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Method for manufacturing fiber reinforced resin molded article, and manufacturing device thereof

A technology of resin molding and manufacturing methods, which is applied in the field of manufacturing fiber-reinforced resin moldings and manufacturing equipment, can solve problems such as poor resin impregnation, achieve the effects of preventing poor resin impregnation and improving resin impregnation

Active Publication Date: 2021-09-28
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a concern of producing preforms with poor resin impregnation

Method used

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  • Method for manufacturing fiber reinforced resin molded article, and manufacturing device thereof
  • Method for manufacturing fiber reinforced resin molded article, and manufacturing device thereof
  • Method for manufacturing fiber reinforced resin molded article, and manufacturing device thereof

Examples

Experimental program
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Embodiment Construction

[0030] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0031] Hereinafter, a high-pressure tank for a fuel cell vehicle as an example of a fiber-reinforced resin molded product will be described as an example. However, the fiber-reinforced resin molded product to which the present invention is applied is not limited to the high-pressure tank for fuel cell vehicles, and the shape and material of the lining or preform constituting the fiber-reinforced resin molded product are not limited to the illustrated examples.

[0032] In the RTM method, a preform in which a fiber layer is formed on the outer surface of the inner liner is produced by winding (winding) several layers (several layers) of carbon fiber on the inner liner, and the fiber layer of the preform is impregnated with epoxy resin and A high-pressure tank for a fuel cell vehicle in which a fiber-reinforced resin layer including carbon fiber and epoxy resin is formed ...

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Abstract

Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively reducing the occurrence of a preform with poor resin impregnation, and such a manufacturing device thereof. After it is detected that a predetermined amount (the same amount) of resin has been individually poured into a plurality of cavities (9a,9b) provided in a mold (10), the fiber layers of preforms (2) are impregnated (compressively filled) with resin. Pressure sensors (13a,13b) for detecting a resin injection amount are used. When closing runners (16a,16b), a small gap is formed in the runners (16a,16b).

Description

technical field [0001] The present invention relates to a manufacturing method and manufacturing apparatus of fiber-reinforced resin molded articles such as high-pressure tanks reinforced (reinforced) with fibers. Background technique [0002] A fuel cell vehicle uses a high-pressure tank (hereinafter, sometimes simply referred to as a tank) that stores fuel gas such as natural gas or hydrogen. Such a high-pressure tank is manufactured as a fiber-reinforced resin molded product in which a gas-barrier hollow liner is used as a core and the liner is covered with carbon fiber-reinforced plastic or glass fiber-reinforced plastic (hereinafter collectively referred to as a fiber-reinforced resin layer). As the inner liner, a hollow container made of resin is generally used from the viewpoint of weight reduction and the like. [0003] Conventionally, the FW (Filament Winding) method and the RTM (Resin Transfer Molding) method have been known as methods for manufacturing high-press...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/54B29C33/00
CPCB29C70/48B29C70/54B29C33/0022B29C45/561B29L2031/7156B29C70/467B29C70/546Y02E60/32B29C43/183B29C2043/181B29C45/0005
Inventor 八田健
Owner TOYOTA JIDOSHA KK