GB1220213A - Improvements in or relating to the alignment of fibrous material - Google Patents

Improvements in or relating to the alignment of fibrous material

Info

Publication number
GB1220213A
GB1220213A GB44318/66A GB4431866A GB1220213A GB 1220213 A GB1220213 A GB 1220213A GB 44318/66 A GB44318/66 A GB 44318/66A GB 4431866 A GB4431866 A GB 4431866A GB 1220213 A GB1220213 A GB 1220213A
Authority
GB
United Kingdom
Prior art keywords
orifice
fibres
dispersion
aligned
sides
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.)
Expired
Application number
GB44318/66A
Inventor
Ronald Percy Ayerst
Colin Bailey
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 to GB39954/64A priority Critical patent/GB1128321A/en
Priority to DE1469422A priority patent/DE1469422C3/en
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB44318/66A priority patent/GB1220213A/en
Publication of GB1220213A publication Critical patent/GB1220213A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
    • C22C47/02—Pretreatment of the fibres or filaments
    • C22C47/025—Aligning or orienting the fibres
    • 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
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • B29C70/14—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat oriented
    • 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
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • 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
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B29K2105/126—Whiskers, i.e. reinforcement in the form of monocrystals
    • 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
    • B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
    • B29K2311/10—Natural fibres, e.g. wool or cotton
    • 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
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • 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
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/12—Asbestos

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

1,220,213. Reinforced alginic acid filaments. NATIONAL RESEARCH DEVELOPMENT CORP. 4 Jan., 1968 [4 Oct., 1966], No. 44318/66. Addition to 1,128,321. Heading B5B. [Also in Divisions C3 and D1] A process for aligning fibrous material comprises dispersing the fibrous material in a liquid medium in a vessel and extruding the resulting dispersion through an orifice in a wall of the vessel, the orifice being shaped from its entry end to its exit end to have a continuously diminishing width and to present to the dispersion surfaces which are generally convex in the direction of flow of the dispersion through the orifice, the width of the entry end of the orifice being at least one and a half times the length of any fibre to be passed through the orifice. Aligned fibres suitable for embedding in a material to produce a fibre-reinforced composite material may be so made by dispersing the fibres in a viscous liquid medium; extruding the dispersion through an orifice shaped as above, whereby the fibres are aligned in passing through the orifice; treating the extruded dispersion to form the liquid medium into a solid carrier for the aligned fibres; and removing the solid carrier from the fibres whilst maintaining their alignment. As shown, the sides of the orifice preferably terminate tangentially to the thread of extruding dispersion as at 2, and the sides of the entry end of the orifice preferably commence substantially tangentially to the inner face of the walls of the vessel in which the orifice is formed, as at 1. The transverse cross-section of the orifice is preferably circular or elliptical. Asbestos or single crystal whisker fibres, polycrystalline and glass fibres, cotton or wool fibres, in a random mass, may thus be aligned. The profile of the sides of the orifice between its entry and exit ends may be substantially flat part way in longitudinal section, the necessary convexity being obtained by curves at the entry and exit ends of the orifice. On the other hand the sides may be continuously convexly curved, in any desired manner. In an example of an orifice in accordance with the invention the profile of the sides is that of a quarter circle whose radius is equal to the thickness of the plate or vessel wall in which it is situated. Suitably the nozzle is made of a plastics material as for example polymethyl methacrylate. In an example, chrysotile asbestos fibres between about 1 and 2 cms. in length are dispersed in an ammonium alginate solution in a concentration of up to 5% by volume, the solution containing 1 to 5% by weight of pure ammonium alginate. The dispersion is extruded through a circular orifice having a convex wall of quarter circle convex shape in longitudinal cross-section, as shown in the drawings. The walls of the entry end 1 of the orifice commence tangentially to the vessel wall and the wall at the exit end of 2 terminates tangentially to the thread of extruding solution 3. The diameter of the orifice at the exit is 2 mms., and the radius of curvature of the convex wall is about three quarters of an inch. The dispersion is extruded into normal (N/1) hydrochloric acid under pressure at about 3 feet per second, and the rubbery extrudate so formed is wound on a rotating drum. The extrudate is dried, heated at about 200‹ C. for 15 mins. and then at 400‹ C. to remove the carrier and leave a thread of aligned fibres.
GB44318/66A 1964-10-01 1966-10-04 Improvements in or relating to the alignment of fibrous material Expired GB1220213A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB39954/64A GB1128321A (en) 1964-10-01 1964-10-01 Improvements in or relating to methods of aligning fibres
DE1469422A DE1469422C3 (en) 1964-10-01 1965-10-01 Method for aligning fibers to be embedded in fiber-reinforced articles with a relatively short staple length
GB44318/66A GB1220213A (en) 1966-10-04 1966-10-04 Improvements in or relating to the alignment of fibrous material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB44318/66A GB1220213A (en) 1966-10-04 1966-10-04 Improvements in or relating to the alignment of fibrous material

Publications (1)

Publication Number Publication Date
GB1220213A true GB1220213A (en) 1971-01-20

Family

ID=10432731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44318/66A Expired GB1220213A (en) 1964-10-01 1966-10-04 Improvements in or relating to the alignment of fibrous material

Country Status (1)

Country Link
GB (1) GB1220213A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242491A1 (en) * 1971-09-01 1973-03-15 Nat Res Dev METHOD AND DEVICE FOR MANUFACTURING FIBER-REINFORCED COMPOSITE MATERIALS
EP0188120A2 (en) * 1984-12-21 1986-07-23 National Research Development Corporation Moulding process
US4925161A (en) * 1984-12-21 1990-05-15 Allan Peter S Process for molding directionally-orientatable material using shear force
US5156858A (en) * 1984-12-21 1992-10-20 National Research Development Corporation Apparatus for controlling the molding of a solid product in a mold cavity from molten material which is repeatedly moved within the mold cavity
US5494426A (en) * 1992-05-11 1996-02-27 Thermold Partners L.P. Vibrating wall surfaces for molding deformable materials
CN115506168A (en) * 2022-09-26 2022-12-23 湖南金博氢能科技有限公司 Wet method fiber dispersing device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242491A1 (en) * 1971-09-01 1973-03-15 Nat Res Dev METHOD AND DEVICE FOR MANUFACTURING FIBER-REINFORCED COMPOSITE MATERIALS
EP0188120A2 (en) * 1984-12-21 1986-07-23 National Research Development Corporation Moulding process
EP0188120A3 (en) * 1984-12-21 1988-02-24 National Research Development Corporation Moulding process
US4925161A (en) * 1984-12-21 1990-05-15 Allan Peter S Process for molding directionally-orientatable material using shear force
US5059368A (en) * 1984-12-21 1991-10-22 National Research Development Corporation Method for molding a material containing alignable constituents
US5156858A (en) * 1984-12-21 1992-10-20 National Research Development Corporation Apparatus for controlling the molding of a solid product in a mold cavity from molten material which is repeatedly moved within the mold cavity
US5160466A (en) * 1984-12-21 1992-11-03 National Research Development Corporation Method for molding a material
US5494426A (en) * 1992-05-11 1996-02-27 Thermold Partners L.P. Vibrating wall surfaces for molding deformable materials
US5650104A (en) * 1992-05-11 1997-07-22 Thermold Partners L.P. Molding deformable materials with use of vibrating wall surfaces
CN115506168A (en) * 2022-09-26 2022-12-23 湖南金博氢能科技有限公司 Wet method fiber dispersing device

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