IT1034462B - Procedimento e dispositivo per la fabbricazione di tubi a parete dop pia fatti di materia plastica aven ti parete esterna con nervature ad anelli o ad elica - Google Patents

Procedimento e dispositivo per la fabbricazione di tubi a parete dop pia fatti di materia plastica aven ti parete esterna con nervature ad anelli o ad elica

Info

Publication number
IT1034462B
IT1034462B IT2149475A IT2149475A IT1034462B IT 1034462 B IT1034462 B IT 1034462B IT 2149475 A IT2149475 A IT 2149475A IT 2149475 A IT2149475 A IT 2149475A IT 1034462 B IT1034462 B IT 1034462B
Authority
IT
Italy
Prior art keywords
die
double walled
air
walled tube
extrusion
Prior art date
Application number
IT2149475A
Other languages
English (en)
Italian (it)
Inventor
R P Hegler
W Hegler
Original Assignee
Hegler Wilhelm
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
Priority claimed from DE2413879A external-priority patent/DE2413879C3/de
Priority claimed from DE2413878A external-priority patent/DE2413878C3/de
Application filed by Hegler Wilhelm filed Critical Hegler Wilhelm
Application granted granted Critical
Publication of IT1034462B publication Critical patent/IT1034462B/it

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
IT2149475A 1974-03-22 1975-03-21 Procedimento e dispositivo per la fabbricazione di tubi a parete dop pia fatti di materia plastica aven ti parete esterna con nervature ad anelli o ad elica IT1034462B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2413879A DE2413879C3 (de) 1974-03-22 1974-03-22 Vorrichtung zur Herstellung eines doppelwandigen Kunststoffrohrs aus einem gewellten Außenrohr und einem glatten Innenrohr
DE2413878A DE2413878C3 (de) 1974-03-22 1974-03-22 Verfahren zum Herstellen eines doppelwandigen Kunststoffrohrs mit gewellter Außen- und glatter Innenwand und Vorrichtung zur Durchführung dieses Verfahrens

Publications (1)

Publication Number Publication Date
IT1034462B true IT1034462B (it) 1979-09-10

Family

ID=25766857

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2149475A IT1034462B (it) 1974-03-22 1975-03-21 Procedimento e dispositivo per la fabbricazione di tubi a parete dop pia fatti di materia plastica aven ti parete esterna con nervature ad anelli o ad elica

Country Status (9)

Country Link
AR (1) AR207352A1 (enrdf_load_stackoverflow)
BG (1) BG27885A3 (enrdf_load_stackoverflow)
BR (1) BR7501741A (enrdf_load_stackoverflow)
EG (1) EG11746A (enrdf_load_stackoverflow)
FI (1) FI60990C (enrdf_load_stackoverflow)
IL (1) IL46892A (enrdf_load_stackoverflow)
IT (1) IT1034462B (enrdf_load_stackoverflow)
PL (1) PL100947B1 (enrdf_load_stackoverflow)
YU (1) YU67975A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
YU67975A (en) 1982-02-28
FI60990B (fi) 1982-01-29
BG27885A3 (en) 1980-01-15
FI750830A7 (enrdf_load_stackoverflow) 1975-09-23
IL46892A (en) 1978-07-31
IL46892A0 (en) 1975-05-22
AR207352A1 (es) 1976-09-30
EG11746A (en) 1978-12-31
BR7501741A (pt) 1975-12-23
FI60990C (fi) 1982-05-10
PL100947B1 (pl) 1978-11-30
AU7943675A (en) 1976-09-30

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