ES374814A1 - Process for producing tubes - Google Patents

Process for producing tubes

Info

Publication number
ES374814A1
ES374814A1 ES374814A ES374814A ES374814A1 ES 374814 A1 ES374814 A1 ES 374814A1 ES 374814 A ES374814 A ES 374814A ES 374814 A ES374814 A ES 374814A ES 374814 A1 ES374814 A1 ES 374814A1
Authority
ES
Spain
Prior art keywords
layer
mandrel
elastically compressible
tube
blank
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
ES374814A
Other languages
Spanish (es)
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.)
Continental AG
Original Assignee
Continental Gummi Werke AG
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 Continental Gummi Werke AG filed Critical Continental Gummi Werke AG
Publication of ES374814A1 publication Critical patent/ES374814A1/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/68—Release sheets
    • 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
    • B29K2021/00—Use of unspecified rubbers as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Of Fabric (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Tubes are formed upon a mandrel covered with an elastically compressible layer by applying a solvent resistant inner layer in the form of a foil of polyamide, halogen-substituted hydrocarbon or other plastics material, followed by an additional layer or layers including one of natural or synthetic rubber, and then the unvulcanized tube blank is removed for further processing, damage to the blank being prevented by the elastically compressible layer, which is retained on the mandrel. In a preferred embodiment the elastically compressible layer comprises a braided stocking made from expandible circular fabric, tied down by cords at both ends of the mandrel. The tube blank comprises a seamless polyamide foil tube, produced by injection moulding or extrusion, an intermediate rubber layer, and an outer reinforcing fabric layer. The unvulcanized tube is slid off the covered mandrel and cut into sections which are placed over curved mandrels and then vulcanized to form pipe bends and elbows.
ES374814A 1968-12-24 1969-12-22 Process for producing tubes Expired ES374814A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1816909 1968-12-24

Publications (1)

Publication Number Publication Date
ES374814A1 true ES374814A1 (en) 1972-01-16

Family

ID=5717342

Family Applications (1)

Application Number Title Priority Date Filing Date
ES374814A Expired ES374814A1 (en) 1968-12-24 1969-12-22 Process for producing tubes

Country Status (5)

Country Link
BR (1) BR6915539D0 (en)
DE (1) DE1816909C2 (en)
ES (1) ES374814A1 (en)
FR (1) FR2027002A1 (en)
GB (1) GB1245080A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612864A1 (en) * 1986-04-16 1987-10-22 Man Technologie Gmbh METHOD FOR PRODUCING FIBER COMPOSITE BODIES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1249514B (en) * 1967-09-07
DE406274C (en) * 1921-10-02 1924-02-27 Karl Kort Method and device for the production of rubber hoses

Also Published As

Publication number Publication date
FR2027002A1 (en) 1970-09-25
DE1816909B1 (en) 1970-05-27
GB1245080A (en) 1971-09-02
DE1816909C2 (en) 1971-02-11
BR6915539D0 (en) 1973-01-16

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