GB861302A - Improvements in the production of fibre-reinforced tubes - Google Patents

Improvements in the production of fibre-reinforced tubes

Info

Publication number
GB861302A
GB861302A GB23890/57A GB2389057A GB861302A GB 861302 A GB861302 A GB 861302A GB 23890/57 A GB23890/57 A GB 23890/57A GB 2389057 A GB2389057 A GB 2389057A GB 861302 A GB861302 A GB 861302A
Authority
GB
United Kingdom
Prior art keywords
mandrel
resin
fibre
tube
mixture
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
GB23890/57A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB861302A publication Critical patent/GB861302A/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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/34—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station
    • 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
    • B29C41/08—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
    • B29C41/085—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder by rotating the former 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/26—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length in several steps
    • 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
    • B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/345—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
    • 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
    • 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
    • B29K2827/00—Use of polyvinylhalogenides or derivatives thereof as mould material
    • B29K2827/12—Use of polyvinylhalogenides or derivatives thereof as mould material containing fluorine
    • B29K2827/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene

Abstract

861,302. Moulding fibre-reinforced synthetic resin tubes. HANUSCH, H. July 29, 1957 [Aug. 1, 1956; April 2, 1957], No. 23890/57. Class 87(2). [Also in Group XXVIII] Fibre-reinforced tubes are produced by spraying a mixture of cut fibres and synthetic resin on to a mandrel moving in a longitudinal direction. As shown in Fig. 1, a tubular mandrel 1 of expansible material, e.g. synthetic rubber, is held by guides 2, 3 and sprayed by three or four nozzles 6 which are periodically partially rotated around the mandrel. Setting of the sprayed mixture is effected by two-part heated pressing rools 7, 8, the rams of which are arranged at right angles and are movable both radially and longitudinally with respect to the mandrel. During spraying, the mandrel may be expanded by hydraulic or air pressure applied through a conduit 4 to facilitate removal of the finished tube. The mandrel may be made of or have a jacket of e.g. silicone rubber in order to obtain a smooth inner surfaced tube. The circular passage formed between the pressing rams may be cone shaped at the end nearest the spray nozzles in order to make smoother seams between successive stages of the tube. Fabric strands or bands may be applied before or after spraying either by plain wrapping or couble cross winding. In the example shown in Fig. 2 the mandrel 1 is simultaneously rotated and moved longitudinally by means of carriages 10, 11 which are spaced apart by a tubular frame 14, and run on rails 9. The resin and fibre mixture sprayed on the mandrel 1 by spray head 6 is polymerised in a heating chamber 20 and then smoothed by a draw nozzle 18 which is rotatable in a stationary holding ring 19. A fibre band reinforcement 21 coated with resin alone or a resin-fibre mixture by a spray head 22 is wound on, a further spray of resin applied by a nozzle 25 and then a cover foil band 24 applied. 23 is a setting chamber. A coating of, e.g. ethoxylin resin or silicone resin applied by a nozzle 30 and partly or completely set in a heated chamber 26, improves the imperviousness of the finished tube. This coating may be replaced by a foil sleeve applied to the mandrel before expansion of the mandrel, and then, preferably, given an adhesive coating. Removal of the tube from the mandrel may be facilitated by applying a vacuum to the interior of the mandrel. Alternatively a thin sleeve of polytetrafluoroethylene, cellulose acetate or hard P.V.C. may be applied to the mandrel and the finished tube separated from this sleeve by blowing air therebetween if necessary.
GB23890/57A 1956-08-01 1957-07-29 Improvements in the production of fibre-reinforced tubes Expired GB861302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE861302X 1956-08-01

Publications (1)

Publication Number Publication Date
GB861302A true GB861302A (en) 1961-02-15

Family

ID=6794585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23890/57A Expired GB861302A (en) 1956-08-01 1957-07-29 Improvements in the production of fibre-reinforced tubes

Country Status (4)

Country Link
BE (1) BE559724A (en)
DE (1) DE1249508B (en)
FR (1) FR1180376A (en)
GB (1) GB861302A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407107A (en) * 1963-11-14 1968-10-22 American Cyanamid Co Apparatus for forming tubular reinforced plastic members
FR2230333A1 (en) * 1973-05-22 1974-12-20 Hary Maurice Method of securing pins to dental amalgam - uses thin silver coating on pin face in contact with amalgam
US4627127A (en) * 1985-02-13 1986-12-09 Minnesota Mining And Manufacturing Company Cylindrical brush

Also Published As

Publication number Publication date
BE559724A (en)
FR1180376A (en) 1959-06-03
DE1249508B (en)

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