GB788063A - Moulding reinforced plastic tubes - Google Patents

Moulding reinforced plastic tubes

Info

Publication number
GB788063A
GB788063A GB2874254A GB2874254A GB788063A GB 788063 A GB788063 A GB 788063A GB 2874254 A GB2874254 A GB 2874254A GB 2874254 A GB2874254 A GB 2874254A GB 788063 A GB788063 A GB 788063A
Authority
GB
United Kingdom
Prior art keywords
mould
resinous composition
inner tube
resin
perforations
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
GB2874254A
Inventor
Drury Norman Davies
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers Co 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 Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB2874254A priority Critical patent/GB788063A/en
Publication of GB788063A publication Critical patent/GB788063A/en
Expired 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
    • B29C70/30—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
    • B29C70/32—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 on a rotating mould, former or core
    • B29C70/323—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 on a rotating mould, former or core on the inner surface of a rotating mould
    • B29C70/326—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 on a rotating mould, former or core on the inner surface of a rotating mould by rotating the mould around its axis of symmetry
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/06—Unsaturated polyesters
    • 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
    • B29K2825/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as mould material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

788,063. Moulding resin tubes. DISTILLERS CO., Ltd. Jan. 5, 1956 [Oct. 6, 1954], No. 28742/54. Class 87(2). [Also in Group XXVIII] Fibre-reinforced tubes are centrifugally moulded by a process in which fibre 6 is assembled between the inner wall of the mould 1 and the outer wall of a perforated inner tube 4, made of a polymerized styrene compound and which comprises introducing inside the perforated inner tube a liquid resinous composition which is a monomeric styrene compound mixed with a compound copolymerizable therewith, e.g., an unsaturated polyester resin, rotating the mould so that the liquid resinous composition passes by centrifugal force through the perforations in the tube 4 to fill the air spaces between the fibres and . curing the resin while still rotating the mould. It is stated that the effect of the monomeric styrene compound is that the resinous composition becomes integrally bonded to the inner tube when cured. The size and number of the perforations 5 should be as small as possible consistent with an easy passage of the resinous composition. The fibrous material may be glass, asbestos, textile or metal filaments and may be in any suitable form such as rovings, woven fabrics or mats. Rovings may be packed into the space between the inner tube and the mould when the two are assembled, or woven fabric can first be wrapped round the inner tube, or glass rovings wound spirally round it, before insertion in the mould. End flanges 2 may be clamped on the mould to provide a resin-tight seal and the spindles 3 may be hollow to permit the introduction of an inert gas or to allow the resinous composition to be added after the end caps have been fitted. Heat is applied in any convenient way to cure or partially to cure the resin. If the cure is partial the tube can be removed from the mould and modified in shape, e.g. bent, before being finally cured by further heating. The speed of rotation should be low at first, and should not exceed that sufficient to cause the resinous composition to pass through the perforations. A suitable unsaturated polyester resin for use in the resinous composition may be obtained by esterifying saturated polyhydric alcohols, e.g., ethylene glycol, with alpha-betaunsaturated acids, e.g. maleic acid. Copolymers of styrene having a greater toughness than polystyrene are suitable for the inner tube, which is preferably extruded from toughened polystyrene, i.e. a polystyrene to which has been added a toughening agent such as rubber. Specifications 712,939 and 767,118 [Group XXVIII] are referred to.
GB2874254A 1954-10-06 1954-10-06 Moulding reinforced plastic tubes Expired GB788063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2874254A GB788063A (en) 1954-10-06 1954-10-06 Moulding reinforced plastic tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2874254A GB788063A (en) 1954-10-06 1954-10-06 Moulding reinforced plastic tubes

Publications (1)

Publication Number Publication Date
GB788063A true GB788063A (en) 1957-12-23

Family

ID=10280371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2874254A Expired GB788063A (en) 1954-10-06 1954-10-06 Moulding reinforced plastic tubes

Country Status (1)

Country Link
GB (1) GB788063A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198049B (en) * 1958-09-15 1965-08-05 Dr Phil Carl Burk Process for the production of hollow bodies made of plastic and containing reinforcing inserts
EP0151461A2 (en) * 1984-02-08 1985-08-14 Siemens Aktiengesellschaft Method for making lightweight products
EP2832519A1 (en) * 2013-07-30 2015-02-04 Confindustria Bergamo Mold for rotational molding and method for heating said mold
EP2832520A1 (en) * 2013-07-30 2015-02-04 Confindustria Bergamo Machine and method for rotational molding of hollow objects of thermoplastic material
US9764850B2 (en) 2009-04-20 2017-09-19 Airbus Operations Limited Edge seal for fibre-reinforced composite structure
CN110103378A (en) * 2019-04-15 2019-08-09 中国科学院力学研究所 A kind of the nested type powder column formation system and method for solid-liquid rocket
CN114311450A (en) * 2021-12-23 2022-04-12 江苏宏发工程尼龙有限公司 Centrifugal pouring device for machining steel lining nylon pipe and using method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198049B (en) * 1958-09-15 1965-08-05 Dr Phil Carl Burk Process for the production of hollow bodies made of plastic and containing reinforcing inserts
EP0151461A2 (en) * 1984-02-08 1985-08-14 Siemens Aktiengesellschaft Method for making lightweight products
EP0151461A3 (en) * 1984-02-08 1987-11-19 Siemens Aktiengesellschaft Method for making lightweight products
US9764850B2 (en) 2009-04-20 2017-09-19 Airbus Operations Limited Edge seal for fibre-reinforced composite structure
EP2832519A1 (en) * 2013-07-30 2015-02-04 Confindustria Bergamo Mold for rotational molding and method for heating said mold
EP2832520A1 (en) * 2013-07-30 2015-02-04 Confindustria Bergamo Machine and method for rotational molding of hollow objects of thermoplastic material
CN110103378A (en) * 2019-04-15 2019-08-09 中国科学院力学研究所 A kind of the nested type powder column formation system and method for solid-liquid rocket
CN114311450A (en) * 2021-12-23 2022-04-12 江苏宏发工程尼龙有限公司 Centrifugal pouring device for machining steel lining nylon pipe and using method thereof

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