IE32982B1 - Transversely corrugated plastics tube and the manufacturing of such - Google Patents

Transversely corrugated plastics tube and the manufacturing of such

Info

Publication number
IE32982B1
IE32982B1 IE31169A IE31169A IE32982B1 IE 32982 B1 IE32982 B1 IE 32982B1 IE 31169 A IE31169 A IE 31169A IE 31169 A IE31169 A IE 31169A IE 32982 B1 IE32982 B1 IE 32982B1
Authority
IE
Ireland
Prior art keywords
tube
mould
corrugations
profile
corrugated
Prior art date
Application number
IE31169A
Other versions
IE32982L (en
Original Assignee
Wavin Bv
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 Wavin Bv filed Critical Wavin Bv
Publication of IE32982L publication Critical patent/IE32982L/en
Publication of IE32982B1 publication Critical patent/IE32982B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
    • B29C49/0021—Making articles of indefinite length, e.g. corrugated tubes using moulds or mould parts movable in a closed path, e.g. mounted on movable endless supports
    • 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
    • B29C53/22—Corrugating
    • B29C53/30—Corrugating of tubes
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/003—Tubular articles having irregular or rough surfaces

Abstract

1,262,663. Moulding corrugated tubes. WAVIN N.V. 28 Feb., 1969 [8 March, 1968], No. 10786/69. Heading B5A. [Also in Divisions B6 and F2] A plastics, e.g. P.V.C., tube 7 having an exterior profile of diametrical or helically extending grooves and an ungrooved interior profile, is moulded from an extruded tubular profile by the pressing thereof into a corrugated profile into contact with a mould 1, whereafter the corrugations extending into the tube 7 are deformed in the direction of the tube axis into contact with, and preferably welded to, the walls of adjacent corrugations. Corrugations are formed by extruding the tube 7 into a first mould, Fig. 1, e.g. defined by two or more moving endless bands of co-operating segments 1, against the corrugated profile whereof the tube 7 is pressed. The corrugated tube 7 is then engaged by a second mould, Fig. 3, e.g. defined by two or more moving endless bands of cooperating segments, defining a corrugated profile wherein the mould corrugation crests extend outwardly of the tube to the same diameter as, but inwardly of the tube to a greater diameter than, the diameters D and d of the corresponding corrugations of the first mould 1, whereby the inwardly extending corrugations are deformed into contact with the walls of adjacent corrugations on passing over a heated mandrel 12. The second mould may also be heated. [GB1262663A]
IE31169A 1968-03-08 1969-03-07 Transversely corrugated plastics tube and the manufacturing of such IE32982B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6803399A NL6803399A (en) 1968-03-08 1968-03-08

Publications (2)

Publication Number Publication Date
IE32982L IE32982L (en) 1969-09-08
IE32982B1 true IE32982B1 (en) 1974-02-06

Family

ID=19802983

Family Applications (1)

Application Number Title Priority Date Filing Date
IE31169A IE32982B1 (en) 1968-03-08 1969-03-07 Transversely corrugated plastics tube and the manufacturing of such

Country Status (7)

Country Link
DE (1) DE1910214A1 (en)
DK (1) DK124110B (en)
FR (1) FR2003492A1 (en)
GB (1) GB1262663A (en)
IE (1) IE32982B1 (en)
NL (1) NL6803399A (en)
SE (1) SE343008B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8514916D0 (en) * 1985-06-12 1985-07-17 Copely Dev Ltd Hose

Also Published As

Publication number Publication date
DK124110B (en) 1972-09-18
SE343008B (en) 1972-02-28
FR2003492A1 (en) 1969-11-07
DE1910214A1 (en) 1969-10-02
IE32982L (en) 1969-09-08
NL6803399A (en) 1969-09-10
GB1262663A (en) 1972-02-02

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