Shaping die for manufacturing composite material shaped product and method of manufacturing composite material shaped product

Patent metadata

Field	Value
Publication number	US-2022088837-A1
Application number	US-202017423503-A
Country	US
Kind code	A1
Filing date	Jan 17, 2020
Priority date	Jan 17, 2019
Publication date	Mar 24, 2022
Grant date	—

Abstract

A composite material shaped product manufacturing shaping die is used when manufacturing a composite material shaped product constituted by at least a resin composition and a fiber material. The composite material shaped product is formed by shaping, by the shaping die, a laminated body of prepregs each formed by impregnating the fiber material with the resin composition. The shaping die includes a die member having a shaping surface defining an outer surface shape of the laminated body. The shaping surface of the die member includes: a release coating covering the shaping surface; and a release agent layer formed on the release coating by applying a release agent to the release coating.

First claim

1 . A composite material shaped product manufacturing shaping die being a shaping die used to, when manufacturing a composite material shaped product comprising a resin composition and a fiber material, shape a laminated body of prepregs each formed by impregnating the fiber material with the resin composition,
the shaping die comprising a die including a shaping surface defining an outer surface shape of the laminated body, wherein the shaping surface includes
a release coating covering the shaping surface and
a release agent layer formed on the release coating by applying a release agent to the release coating.

2 . The composite material shaped product manufacturing shaping die according to claim 1 , wherein the release agent is comprised a material having affinity with the release coating.

3 . The composite material shaped product manufacturing shaping die according to claim 1 , wherein the release coating contains a non-carbon resin material.

4 . The composite material shaped product manufacturing shaping die according to claim 3 , wherein:
the release coating is a silicone resin coating that is the non-carbon resin material; and the release agent is a silicone release agent.

5 . The composite material shaped product manufacturing shaping die according to claim 4 , wherein:
the silicone resin coating includes a glass coating as a base material; and the base material contains silicone resin particles.

6 . The composite material shaped product manufacturing shaping die according to claim 3 , wherein:
the release coating is a fluorocarbon resin coating that is the non-carbon resin material; and the release agent is a fluorine release agent.

7 . The composite material shaped product manufacturing shaping die according to claim 6 , wherein:
the fluorocarbon resin coating includes a glass coating as a base material; and the base material contains fluorocarbon resin particles.

8 . The composite material shaped product manufacturing shaping die according to claim 1 , wherein the release coating is colored.

9 . The composite material shaped product manufacturing shaping die according to claim 8 , wherein:
the release coating is comprised of layers laminated on each other; and the layers are colored in different colors from each other.

10 . The composite material shaped product manufacturing shaping die according to claim 1 , wherein the resin composition is a thermosetting resin composition or a thermoplastic resin composition.

11 . The composite material shaped product manufacturing shaping die according to claim 1 , wherein the composite material shaped product is an aircraft structure.

12 . A method of manufacturing a composite material shaped product comprising at least a resin composition and a fiber material,
the method comprising: covering a shaping surface with a release coating, the shaping surface defining an outer surface shape of a laminated body of prepregs each formed by impregnating the fiber material with the resin composition; applying a release agent to the release coating to form a release agent layer on the release coating; and shaping the laminated body in a state where an outer surface of the laminated body is in tight contact with the release agent layer.

Assignees

• Kawasaki Heavy Ind Ltd

Inventors

• Sana Toshikazu
• Ogasawara Shodo

Classifications

• B29C33/58 Primary

  Applying the releasing agents · CPC title

• B29C70/54

  Component parts, details or accessories; Auxiliary operations {, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing} · CPC title

• B29C33/64 Primary

  Silicone · CPC title

• B29C70/30

  Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core · CPC title