WO2008055459A3 - Method for producing a leaf spring from a composite fiber material containing a thermoplastic material, and leaf spring obtained by means of said method - Google Patents

Method for producing a leaf spring from a composite fiber material containing a thermoplastic material, and leaf spring obtained by means of said method Download PDF

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Publication number
WO2008055459A3
WO2008055459A3 PCT/DE2007/001842 DE2007001842W WO2008055459A3 WO 2008055459 A3 WO2008055459 A3 WO 2008055459A3 DE 2007001842 W DE2007001842 W DE 2007001842W WO 2008055459 A3 WO2008055459 A3 WO 2008055459A3
Authority
WO
WIPO (PCT)
Prior art keywords
leaf spring
fiber strand
web
moistened
composite fiber
Prior art date
Application number
PCT/DE2007/001842
Other languages
German (de)
French (fr)
Other versions
WO2008055459A2 (en
Inventor
Matthias Voigt
Original Assignee
Ifc Composite Gmbh
Matthias Voigt
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
Priority claimed from DE102006052136A external-priority patent/DE102006052136B4/en
Priority claimed from DE102006052137A external-priority patent/DE102006052137B4/en
Priority claimed from DE102007003596A external-priority patent/DE102007003596B4/en
Application filed by Ifc Composite Gmbh, Matthias Voigt filed Critical Ifc Composite Gmbh
Publication of WO2008055459A2 publication Critical patent/WO2008055459A2/en
Publication of WO2008055459A3 publication Critical patent/WO2008055459A3/en

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
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • 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
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
    • C08J5/244—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/774—Springs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Springs (AREA)

Abstract

The invention relates to a method for producing a spring leaf from a composite fiber material containing a thermoplastic material as well as a spring leaf (25) produced according to said method. In order to be able to produce such a leaf spring (25) at high quality and in an economical manner, said method encompasses the following steps: a thermoplastic material (14) is melted; a fiber strand (2) composed of at least parallel fibers is moistened by means of the melted plastic (14); the top surface and the bottom surface of the fiber strand (2) are covered with at least one web (3, 4) of covering material, the plastically moistened fiber strand (2) being combined with the at least one web (3, 4) of covering material on a convex heated heating plate (6); the plastically moistened fiber strand (2) that is covered with at least one web (3, 4) of covering material is cut to form prepregs (20) having predetermined lengths; a predetermined number of prepreg layers (20', 20', 20'') are placed on a stacking surface of a heatable moulding press (24); and the prepreg layers (20', 20', 20'') are pressed inside the moulding press (24) under the effect of predetermined and material-dependent temperature and pressure curves over a period of time such that a spring leaf made of a hardened composite fiber material is obtained following the pressing process.
PCT/DE2007/001842 2006-11-06 2007-10-16 Method for producing a leaf spring from a composite fiber material containing a thermoplastic material, and leaf spring obtained by means of said method WO2008055459A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102006052137.4 2006-11-06
DE102006052136A DE102006052136B4 (en) 2006-11-06 2006-11-06 Process and apparatus for the continuous production of prepregs
DE102006052136.6 2006-11-06
DE102006052137A DE102006052137B4 (en) 2006-11-06 2006-11-06 Process for producing leaf springs from a fiber composite material
DE102007003596.0 2007-01-25
DE102007003596A DE102007003596B4 (en) 2007-01-25 2007-01-25 Method for producing a leaf spring made of a fiber composite material with a thermoplastic material

Publications (2)

Publication Number Publication Date
WO2008055459A2 WO2008055459A2 (en) 2008-05-15
WO2008055459A3 true WO2008055459A3 (en) 2008-07-03

Family

ID=39217963

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001842 WO2008055459A2 (en) 2006-11-06 2007-10-16 Method for producing a leaf spring from a composite fiber material containing a thermoplastic material, and leaf spring obtained by means of said method

Country Status (1)

Country Link
WO (1) WO2008055459A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2482342A (en) * 2010-07-30 2012-02-01 Vestas Wind Sys As Cooling of fibrous sheet for composite structure during machining
CN104602863B (en) * 2012-06-25 2017-04-26 维斯塔斯风力系统有限公司 A method and an apparatus for providing a tapered edge on a sheet comprising a fibrous material
CA2865630C (en) 2013-10-01 2023-01-10 Hendrickson Usa, L.L.C. Leaf spring and method of manufacture thereof having sections with different levels of through hardness
CN103692665B (en) * 2013-12-18 2016-08-17 上海日之升科技有限公司 Continuous long glass fiber strengthens PPO and produces with glass fiber bundle response type infiltrated with molten metal equipment and wetting method
CN111136936B (en) * 2020-01-08 2024-08-09 南京航空航天大学 Multi-angle layering design cap-shaped stringer prepreg pultrusion device
CN113478868B (en) * 2021-05-25 2023-05-05 贵州石鑫玄武岩科技有限公司 Layer-cutting type composite plate spring production device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100835A (en) * 1981-06-15 1983-01-06 Budd Co Non-metallic leaf spring
EP0172050A1 (en) * 1984-07-25 1986-02-19 Regie Nationale Des Usines Renault Method of moulding pre-impregnated articles consisting of oriented fibres
FR2587649A1 (en) * 1985-09-20 1987-03-27 Renault Process for manufacturing products made from composite materials having oriented fibres, in particular leafsprings, especially for motor vehicles, and products resulting therefrom
GB2286363A (en) * 1994-02-10 1995-08-16 Belfield Mfg Ltd Producing limited fire hazard epoxide glass laminates

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100835A (en) * 1981-06-15 1983-01-06 Budd Co Non-metallic leaf spring
EP0172050A1 (en) * 1984-07-25 1986-02-19 Regie Nationale Des Usines Renault Method of moulding pre-impregnated articles consisting of oriented fibres
FR2587649A1 (en) * 1985-09-20 1987-03-27 Renault Process for manufacturing products made from composite materials having oriented fibres, in particular leafsprings, especially for motor vehicles, and products resulting therefrom
GB2286363A (en) * 1994-02-10 1995-08-16 Belfield Mfg Ltd Producing limited fire hazard epoxide glass laminates

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CIBA COMPOSITES, TECHNOLOGIE DU PREIMPREGNE, December 2005 (2005-12-01), XP002473194 *
F. C. CAMPBELL: "Manufacturing processes for advanced composites", 2004, ELSEVIER ADVANCED TECHNOLOGY, OXFORD, UK, ISBN: 1-85617-415-8, XP002473195 *

Also Published As

Publication number Publication date
WO2008055459A2 (en) 2008-05-15

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