NL7407585A - Forming accurately dimensioned tubular thermoplastics couplings - using double plunger machine which simultaneously forms sockets at both ends - Google Patents

Forming accurately dimensioned tubular thermoplastics couplings - using double plunger machine which simultaneously forms sockets at both ends

Info

Publication number
NL7407585A
NL7407585A NL7407585A NL7407585A NL7407585A NL 7407585 A NL7407585 A NL 7407585A NL 7407585 A NL7407585 A NL 7407585A NL 7407585 A NL7407585 A NL 7407585A NL 7407585 A NL7407585 A NL 7407585A
Authority
NL
Netherlands
Prior art keywords
couplings
simultaneously forms
double plunger
accurately dimensioned
plunger machine
Prior art date
Application number
NL7407585A
Other languages
Dutch (nl)
Original Assignee
Polva Nederland 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 Polva Nederland Bv filed Critical Polva Nederland Bv
Priority to NL7407585A priority Critical patent/NL7407585A/en
Publication of NL7407585A publication Critical patent/NL7407585A/en

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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

A tubular coupling of thermoplastic, having on each end of alenght of tube, a socket with an internal groove, is produced by heating the tube to an elastically deformable condition and introducing two expanding arbors from opposite ends into it to form a coupling from which they are withdrawn when the component has completely coolef off. Thusprod. costs are reduced.
NL7407585A 1974-06-06 1974-06-06 Forming accurately dimensioned tubular thermoplastics couplings - using double plunger machine which simultaneously forms sockets at both ends NL7407585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7407585A NL7407585A (en) 1974-06-06 1974-06-06 Forming accurately dimensioned tubular thermoplastics couplings - using double plunger machine which simultaneously forms sockets at both ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7407585A NL7407585A (en) 1974-06-06 1974-06-06 Forming accurately dimensioned tubular thermoplastics couplings - using double plunger machine which simultaneously forms sockets at both ends

Publications (1)

Publication Number Publication Date
NL7407585A true NL7407585A (en) 1975-12-09

Family

ID=19821497

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7407585A NL7407585A (en) 1974-06-06 1974-06-06 Forming accurately dimensioned tubular thermoplastics couplings - using double plunger machine which simultaneously forms sockets at both ends

Country Status (1)

Country Link
NL (1) NL7407585A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2335321A1 (en) * 1975-12-18 1977-07-15 Megias Ets Joseph Tools for moulding sharp seal channels within plastic pipe sockets - by forming between a sleeved mandrel and a split mould
FR2413960A1 (en) * 1978-01-10 1979-08-03 Megias Ets Joseph Forming socket ends of thermoplastic pipes - by progressive mechanical and hydrostatic means to obtain close dimensional tolerances on the socket
US4783303A (en) * 1985-03-14 1988-11-08 Wirsbo Pex Platzer Schwedenbau Gmbh Method of processing semifinished products made of cross-linked plastic material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2335321A1 (en) * 1975-12-18 1977-07-15 Megias Ets Joseph Tools for moulding sharp seal channels within plastic pipe sockets - by forming between a sleeved mandrel and a split mould
FR2413960A1 (en) * 1978-01-10 1979-08-03 Megias Ets Joseph Forming socket ends of thermoplastic pipes - by progressive mechanical and hydrostatic means to obtain close dimensional tolerances on the socket
US4783303A (en) * 1985-03-14 1988-11-08 Wirsbo Pex Platzer Schwedenbau Gmbh Method of processing semifinished products made of cross-linked plastic material

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