NO943518L - Pipeline section made of polyethylene by extrusion and process of its manufacture - Google Patents
Pipeline section made of polyethylene by extrusion and process of its manufactureInfo
- Publication number
- NO943518L NO943518L NO943518A NO943518A NO943518L NO 943518 L NO943518 L NO 943518L NO 943518 A NO943518 A NO 943518A NO 943518 A NO943518 A NO 943518A NO 943518 L NO943518 L NO 943518L
- Authority
- NO
- Norway
- Prior art keywords
- polyethylene
- crystalline
- pipe end
- extrusion
- manufacture
- Prior art date
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
-
- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Extruded pipe end made from polyethylene, which has a moulded-on socket. The extruded pipe end has a wall thickness of over 5 mm. The moulded-on socket has at least the same wall thickness. The wall has in cross-section a highly crystalline inner region (4) and a weakly crystalline outer region (5). The highly crystalline inner region (4) forms a peripheral crystalline supporting shroud. This is designed for the virtually deformation-free supporting of the weakly crystalline outer region when shrinkage stresses occur. A method for producing such a pipe end is also specified. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934332775 DE4332775C2 (en) | 1993-09-25 | 1993-09-25 | Process for forming an insertion sleeve on a pipe section |
DE19934332774 DE4332774C2 (en) | 1993-09-25 | 1993-09-25 | Polyethylene plastic pipe section produced by extrusion |
Publications (2)
Publication Number | Publication Date |
---|---|
NO943518D0 NO943518D0 (en) | 1994-09-22 |
NO943518L true NO943518L (en) | 1995-03-27 |
Family
ID=25929912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO943518A NO943518L (en) | 1993-09-25 | 1994-09-22 | Pipeline section made of polyethylene by extrusion and process of its manufacture |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0645571B1 (en) |
AT (1) | ATE150533T1 (en) |
CZ (1) | CZ233494A3 (en) |
DE (1) | DE59402133D1 (en) |
FI (1) | FI944429A (en) |
HR (1) | HRP940584A2 (en) |
NO (1) | NO943518L (en) |
PL (1) | PL305155A1 (en) |
SK (1) | SK115494A3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2758381B1 (en) * | 1997-01-28 | 1999-02-26 | Alphacan Sa | BI-ORIENTED PLASTIC TUBE |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1604411A1 (en) * | 1966-08-01 | 1970-10-22 | Bernhard Albrecht | Method and device for the production of tubes provided at the end with widenings and / or thickenings made of deformable material, preferably thermoplastic material, in the extrusion process |
FR2184857A1 (en) * | 1972-05-16 | 1973-12-28 | Yorkshire Imperial Plastics | Thermoplastic pipe socket |
PH16346A (en) * | 1978-10-03 | 1983-09-05 | Kubota Ltd | Method of forming a socket end on a plastic pipe and a molding device for use of the method |
JPS5692023A (en) * | 1979-12-27 | 1981-07-25 | Idemitsu Petrochem Co Ltd | Molding of two-layer film |
FI96396C (en) * | 1992-12-28 | 1996-06-25 | Uponor Bv | Process for forming a double-layered plastic tube for material transport and a double-layered plastic tube formed by the method |
-
1993
- 1993-09-23 CZ CZ942334A patent/CZ233494A3/en unknown
-
1994
- 1994-08-23 AT AT94113121T patent/ATE150533T1/en not_active IP Right Cessation
- 1994-08-23 DE DE59402133T patent/DE59402133D1/en not_active Expired - Fee Related
- 1994-08-23 EP EP94113121A patent/EP0645571B1/en not_active Expired - Lifetime
- 1994-09-22 NO NO943518A patent/NO943518L/en unknown
- 1994-09-23 FI FI944429A patent/FI944429A/en not_active Application Discontinuation
- 1994-09-23 PL PL94305155A patent/PL305155A1/en unknown
- 1994-09-26 SK SK1154-94A patent/SK115494A3/en unknown
- 1994-09-26 HR HRP4332774.5A patent/HRP940584A2/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
PL305155A1 (en) | 1995-04-03 |
CZ233494A3 (en) | 1995-05-17 |
HRP940584A2 (en) | 1996-10-31 |
DE59402133D1 (en) | 1997-04-24 |
SK115494A3 (en) | 1996-05-08 |
NO943518D0 (en) | 1994-09-22 |
FI944429A (en) | 1995-03-26 |
EP0645571A1 (en) | 1995-03-29 |
EP0645571B1 (en) | 1997-03-19 |
FI944429A0 (en) | 1994-09-23 |
ATE150533T1 (en) | 1997-04-15 |
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