JPS6434725A - Manufacture of frp construction object with hollow cross section - Google Patents

Manufacture of frp construction object with hollow cross section

Info

Publication number
JPS6434725A
JPS6434725A JP62191317A JP19131787A JPS6434725A JP S6434725 A JPS6434725 A JP S6434725A JP 62191317 A JP62191317 A JP 62191317A JP 19131787 A JP19131787 A JP 19131787A JP S6434725 A JPS6434725 A JP S6434725A
Authority
JP
Japan
Prior art keywords
cavity
inner layer
reinforcing fiber
section
layer object
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62191317A
Other languages
Japanese (ja)
Inventor
Yasuhiro Mishima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP62191317A priority Critical patent/JPS6434725A/en
Publication of JPS6434725A publication Critical patent/JPS6434725A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

PURPOSE:To obtain a FRP construction object of hollow cross section having high packing rate of fiber and moreover no molded defect by a method in which the inner layer object of hollow cross section composed of thermoplastic resin is arranged in a cavity, and the periphery of the inner layer object is filled with reinforcing fiber, and then resin is poured in the state where the pressure in the cavity is reduced. CONSTITUTION:In the state where a top force 5 and a bottom force 6 are opened, the bottom force 6 is filled to a prescribed thickness with reinforcing fiber 13, and the inner layer object 2 with rectangular and hollow cross section is set therein. The inner layer object 2 is composed of the thermoplastic resin formed into the hollow shape of rectangular cross section. After the inner layer object 2 has been set, the bottom force is further filled with reinforcing fiber 13, and the molds are closed by lowering the top force 5. When the pressure in a cavity 17 is reduced by driving a vacuum pump 12, the reinforcing fiber 13 is pressed by the inner layer object 2, and is adapted to the inner surface of the cavity 17 so that the thickness of the fiber 13 becomes a desired thickness. When resin is poured into the cavity 17 through a sprue 10 from the nozzle 14 of a pouring machine, the resin permeates the inner part of the reinforcing fiber 13 and reaches every nook and corner in the cavity 17. The resin is cured, and a molded object is taken out. Consequently, the packing rate of the reinforcing fiber is heightened, and the FRP product with high physical characteristics may be obtained.
JP62191317A 1987-07-30 1987-07-30 Manufacture of frp construction object with hollow cross section Pending JPS6434725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62191317A JPS6434725A (en) 1987-07-30 1987-07-30 Manufacture of frp construction object with hollow cross section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62191317A JPS6434725A (en) 1987-07-30 1987-07-30 Manufacture of frp construction object with hollow cross section

Publications (1)

Publication Number Publication Date
JPS6434725A true JPS6434725A (en) 1989-02-06

Family

ID=16272546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62191317A Pending JPS6434725A (en) 1987-07-30 1987-07-30 Manufacture of frp construction object with hollow cross section

Country Status (1)

Country Link
JP (1) JPS6434725A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0463610A (en) * 1990-07-03 1992-02-28 Kawashita Kiko:Kk Work driving center
JP2003071864A (en) * 2001-09-03 2003-03-12 Fuji Heavy Ind Ltd Manufacturing method of composite reinforcing plate
JP2006289903A (en) * 2005-04-14 2006-10-26 Toyota Motor Corp Manufacturing method of hollow molded body made of fiber reinforced resin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0463610A (en) * 1990-07-03 1992-02-28 Kawashita Kiko:Kk Work driving center
JP2003071864A (en) * 2001-09-03 2003-03-12 Fuji Heavy Ind Ltd Manufacturing method of composite reinforcing plate
JP2006289903A (en) * 2005-04-14 2006-10-26 Toyota Motor Corp Manufacturing method of hollow molded body made of fiber reinforced resin

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