GB794907A - Methods and apparatus for forming composite hollow articles - Google Patents

Methods and apparatus for forming composite hollow articles

Info

Publication number
GB794907A
GB794907A GB21287/54A GB2128754A GB794907A GB 794907 A GB794907 A GB 794907A GB 21287/54 A GB21287/54 A GB 21287/54A GB 2128754 A GB2128754 A GB 2128754A GB 794907 A GB794907 A GB 794907A
Authority
GB
United Kingdom
Prior art keywords
liner
liners
fed
deformed
tube
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
GB21287/54A
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.)
Lorraine Escaut SA
Original Assignee
Lorraine Escaut SA
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 Lorraine Escaut SA filed Critical Lorraine Escaut SA
Publication of GB794907A publication Critical patent/GB794907A/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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/38—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
    • B29C63/46—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses of internal surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D49/00—Sheathing or stiffening objects
    • B21D49/005—Hollow objects
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/002—Handling tubes, e.g. transferring between shaping stations, loading on mandrels
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Robotics (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

794,907. Composite pipes. LORRAINEESCAUT. July 21, 1954 [Nov. 25, 1953], No. 21287/54. Class 99(2). In a method of lining a hollow body a liner of thermoplastic material is formed into substantially the final shape thereof and subsequently deformed mechanically in the cold state, in such a way that at least one of the dimensions of the transverse cross-section of the liner is reduced, and then inserted within the body, the assembly being then heated to cause the liner to recover the original dimensions thereof and to be urged into engagement with the interior of the body. As shown, thermoplastic liner tubes 2 are fed one by one to a channel 3 and then to a roll-type mill 4 in which the tubes are reduced in diameter. Each tube is introduced into a steel tube 5 fed into a channel 6, and each assembly of tube and liner is then passed to a heating chamber 8. In modifications (a) the deformed liners are fed to a machine and have helically wound thereon a steel strip, and (b) concrete pipes are moulded around the deformed liners ; in both cases a final heating expands the liners into engagement with the wound strips or concrete pipes.
GB21287/54A 1953-11-25 1954-07-21 Methods and apparatus for forming composite hollow articles Expired GB794907A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR794907X 1953-11-25
CH794709X 1955-11-30

Publications (1)

Publication Number Publication Date
GB794907A true GB794907A (en) 1958-05-14

Family

ID=25738443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21287/54A Expired GB794907A (en) 1953-11-25 1954-07-21 Methods and apparatus for forming composite hollow articles

Country Status (2)

Country Link
FR (1) FR1094525A (en)
GB (1) GB794907A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2232423A1 (en) * 1973-06-08 1975-01-03 Pont A Mousson
US4923663A (en) * 1988-10-17 1990-05-08 Simon Sama'an Tarsha Method of lining tubular members including rolling and crushing a liner

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS435073B1 (en) * 1965-07-02 1968-02-24
DE59504785D1 (en) * 1994-07-05 1999-02-25 Hewing Gmbh Process for the continuous production of a composite pipe having a metal pipe and a plastic inner pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2232423A1 (en) * 1973-06-08 1975-01-03 Pont A Mousson
US4923663A (en) * 1988-10-17 1990-05-08 Simon Sama'an Tarsha Method of lining tubular members including rolling and crushing a liner

Also Published As

Publication number Publication date
FR1094525A (en) 1955-05-20

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