GB8627819D0 - Panels - Google Patents

Panels

Info

Publication number
GB8627819D0
GB8627819D0 GB868627819A GB8627819A GB8627819D0 GB 8627819 D0 GB8627819 D0 GB 8627819D0 GB 868627819 A GB868627819 A GB 868627819A GB 8627819 A GB8627819 A GB 8627819A GB 8627819 D0 GB8627819 D0 GB 8627819D0
Authority
GB
United Kingdom
Prior art keywords
panel
fibrous material
pyrolysis process
surface members
vents
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
GB868627819A
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.)
Dunlop Ltd
Original Assignee
Dunlop Ltd
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 Dunlop Ltd filed Critical Dunlop Ltd
Priority to GB868627819A priority Critical patent/GB8627819D0/en
Publication of GB8627819D0 publication Critical patent/GB8627819D0/en
Priority to GB8726111A priority patent/GB2197618B/en
Priority to FR878715988A priority patent/FR2607069B1/en
Priority to DE19873739250 priority patent/DE3739250A1/en
Priority to JP62293861A priority patent/JPH0710578B2/en
Priority to US08/190,615 priority patent/US5360500A/en
Priority to US08/303,671 priority patent/US5547737A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B32B3/20Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00Producing articles with hollow walls
    • B29D24/002Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/008Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having hollow ridges, ribs or cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024Woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026Knitted fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/28Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/06Frames; Stringers; Longerons ; Fuselage sections
    • B64C1/12Construction or attachment of skin panels
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71Ceramic products containing macroscopic reinforcing agents
    • C04B35/78Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80Fibres, filaments, whiskers, platelets, or the like
    • C04B35/83Carbon fibres in a carbon matrix
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/3405Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by profiled spacer sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/106Carbon fibres, e.g. graphite fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/06Open cell foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/18Aircraft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00Walls, panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C2001/0054Fuselage structures substantially made from particular materials
    • B64C2001/0072Fuselage structures substantially made from particular materials from composite materials
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/3405Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by profiled spacer sheets
    • E04C2002/3444Corrugated sheets
    • E04C2002/345Corrugated sheets with triangular corrugations
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2002/3477Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by tubular elements parallel to the sheets
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/40Weight reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Civil Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Ceramic Products (AREA)
  • Laminated Bodies (AREA)

Abstract

A light-weight panel, e.g. for aircraft, is manufactured by preparing a panel preform having a pair of surface members or skins (11, 12, 29, 30, 55, 56, 62, 64) separated and supported by an internal core in which spaces or interconnected pores provide vents to an edge of the panel, the wall surface members and the core comprising fibrous material, which may be carbon fibre, and using a pyrolysis process such as CVD to form a pyrolytic matrix around the fibres within the fibrous material, there being a flow of gas through the vents during the pyrolysis process. <IMAGE>
GB868627819A 1986-11-20 1986-11-20 Panels Pending GB8627819D0 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB868627819A GB8627819D0 (en) 1986-11-20 1986-11-20 Panels
GB8726111A GB2197618B (en) 1986-11-20 1987-11-06 Panels
FR878715988A FR2607069B1 (en) 1986-11-20 1987-11-19 LIGHTWEIGHT PANEL, PARTICULARLY FOR AIRCRAFT, AND MANUFACTURING METHOD THEREOF
DE19873739250 DE3739250A1 (en) 1986-11-20 1987-11-19 BLACKBOARD
JP62293861A JPH0710578B2 (en) 1986-11-20 1987-11-20 Method for producing carbon-carbon composite panel
US08/190,615 US5360500A (en) 1986-11-20 1994-02-02 Method of producing light-weight high-strength stiff panels
US08/303,671 US5547737A (en) 1986-11-20 1994-09-09 Light-weight, high-strength, stiff panels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868627819A GB8627819D0 (en) 1986-11-20 1986-11-20 Panels

Publications (1)

Publication Number Publication Date
GB8627819D0 true GB8627819D0 (en) 1986-12-17

Family

ID=10607683

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868627819A Pending GB8627819D0 (en) 1986-11-20 1986-11-20 Panels
GB8726111A Expired - Lifetime GB2197618B (en) 1986-11-20 1987-11-06 Panels

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8726111A Expired - Lifetime GB2197618B (en) 1986-11-20 1987-11-06 Panels

Country Status (4)

Country Link
JP (1) JPH0710578B2 (en)
DE (1) DE3739250A1 (en)
FR (1) FR2607069B1 (en)
GB (2) GB8627819D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112125679A (en) * 2020-09-17 2020-12-25 中航复合材料有限责任公司 Method for preparing omega-shaped stringer based on precursor impregnation cracking process

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5116689A (en) * 1988-11-07 1992-05-26 Rohr Industries, Inc. Apparatus and method for selectively increasing density and thermal conductivity of honeycomb structures
DE3933039A1 (en) * 1989-10-04 1991-04-18 Sintec Keramik Gmbh Inhibiting oxidn. of carbon fibre reinforced carbon moulding - by chemical vapour infiltration or deposition of pyrolytic carbon and opt. silicon carbide
JPH03215361A (en) * 1990-01-19 1991-09-20 Kanto Yakin Kogyo Kk Production of structural material by carbon fiber reinforced carbon
DE9004148U1 (en) * 1990-04-10 1990-06-21 Basf Ag, 67063 Ludwigshafen Bending-resistant component
DE69128080T2 (en) * 1990-05-18 1998-02-26 Hitco Technologies Inc., Gardena, Calif. MATERIALS FOR CDV PROCESSES
DE4030529A1 (en) * 1990-09-27 1992-04-02 Dornier Gmbh METHOD FOR PRODUCING SANDWICH STRUCTURES FROM FIBER REINFORCED CERAMICS
US5424113A (en) * 1993-06-23 1995-06-13 The United States Of America As Represented By The Secretary Of The Navy Lattice core sandwich construction
US5858486A (en) * 1995-02-27 1999-01-12 Sgl Carbon Composites, Inc. High purity carbon/carbon composite useful as a crucible susceptor
US5683281A (en) * 1995-02-27 1997-11-04 Hitco Technologies, Inc High purity composite useful as furnace components
US6068925A (en) * 1995-02-27 2000-05-30 Sgl Carbon Composites Corrosion resistant composites useful in chemical reactors
US5989504A (en) * 1995-02-27 1999-11-23 Sgl Carbon Composites Chemical process employing corrosion resistant composites
GB9600450D0 (en) * 1996-01-10 1996-03-13 Fra Mo Snc Sheet material
FR2746388B1 (en) * 1996-03-19 1998-06-05 Aerospatiale METHOD FOR MANUFACTURING A HONEYCOMB-TYPE PANEL IN CARBON/CARBON OR CARBON/CERAMIC COMPOSITE AND STRUCTURES MADE FROM SUCH A PANEL
GB9709998D0 (en) * 1997-05-19 1997-07-09 Secr Defence Composite structure
BE1013181A5 (en) * 1999-12-17 2001-10-02 Sonaca Sa Joint compound for assembly of at least one body outside on a sandwich panel and panel incorporating at least one such connection.
SE525021C2 (en) * 2003-03-18 2004-11-09 Bo Renberg Moldable laminate with arbitrary circumference especially useful as a support joint
GB0510540D0 (en) * 2005-05-24 2005-06-29 Rolls Royce Plc Containment casing
DE102005063518B4 (en) * 2005-10-26 2012-07-12 Vincenzo Tilelli Layer composition, has central layer which comprises oblong shaped gutter element whereby gutter element has arch-shaped at cross section in transverse direction and arc end point of base point is designed on first surrounding layer
DE102015111859B4 (en) * 2015-07-22 2022-02-24 Fibro Läpple Technology GmbH High speed gantry system with linear drive
CN112125673B (en) * 2020-09-17 2022-08-09 中航复合材料有限责任公司 Method for preparing right-angle stringer based on precursor impregnation cracking process
CN113085216A (en) * 2021-03-24 2021-07-09 哈尔滨工程大学 Fiber tube periodic positive and negative Poisson's ratio sandwich structure and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE431513B (en) * 1976-10-20 1984-02-13 Toyo Boseki WAVE PAPER MULTI-LAYER
GB1549687A (en) * 1977-07-06 1979-08-08 Dunlop Ltd Production of carbon fibre reinforced carbon composite materials
DE3327659A1 (en) * 1983-07-30 1985-02-14 MTU Motoren- und Turbinen-Union München GmbH, 8000 München METHOD FOR PRODUCING A COMPOSITE BODY FROM CERAMIC OR FIBER-REINFORCED CERAMIC, AND A SANDWICH PRODUCTION PRODUCED BY THIS METHOD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112125679A (en) * 2020-09-17 2020-12-25 中航复合材料有限责任公司 Method for preparing omega-shaped stringer based on precursor impregnation cracking process

Also Published As

Publication number Publication date
FR2607069A1 (en) 1988-05-27
GB2197618A (en) 1988-05-25
JPS63191628A (en) 1988-08-09
DE3739250A1 (en) 1988-05-26
GB2197618B (en) 1990-07-11
FR2607069B1 (en) 1991-01-18
JPH0710578B2 (en) 1995-02-08
GB8726111D0 (en) 1987-12-09

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