GB1324886A - Method and apparatus for forming a groove in a tube and tube having a groove formed therein - Google Patents
Method and apparatus for forming a groove in a tube and tube having a groove formed thereinInfo
- Publication number
- GB1324886A GB1324886A GB5252770A GB1324886DA GB1324886A GB 1324886 A GB1324886 A GB 1324886A GB 5252770 A GB5252770 A GB 5252770A GB 1324886D A GB1324886D A GB 1324886DA GB 1324886 A GB1324886 A GB 1324886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- mandrel
- groove
- recess
- dies
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- -1 polyethylene Polymers 0.000 abstract 2
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- B29C57/08—Belling or enlarging, e.g. combined with forming a groove using pressure difference
-
- 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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
-
- 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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
1324886 Moulding grooves in tubes INDUSTRIELE ONDERNEMING WAVIN NV 4 Nov 1970 52527/70 Heading B5A In a method for forming an interior circumferential groove in a thermoplastics tube 1, the tube is first positioned over a mandrel 4 which co-operates with a split mould formed by dies 3, having a circumferential recess 11, and is thereafter heated both by means of a heating device incorporated in the dies and by a heating medium passed through a cavity 6 in the mandrel; the heated tube is then expanded into the recess 11 by means of a liquid pressing medium introduced from an hydraulic system 16 through outlets 13 around the circumference of the mandrel. Sealing rings 9, 10 are provided which assist in delimiting the area of formation of the groove. The tube, which is provided with a reinforcing sleeve 2, may be of polyethylene, polypropylene or polyvinylchloride, and the pressing medium may be oil or water. In an alternative embodiment, Fig. 3 (not shown), the recess 11 may be provided with a heat resistant resilient lining 17.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5252770 | 1970-11-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1324886A true GB1324886A (en) | 1973-07-25 |
Family
ID=10464257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5252770A Expired GB1324886A (en) | 1970-11-04 | 1970-11-04 | Method and apparatus for forming a groove in a tube and tube having a groove formed therein |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1324886A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2405121A1 (en) * | 1976-09-23 | 1979-05-04 | Yorkshire Imperial Plastics | Radial lamination of coaxial thermoplastic tubes - to make composite oriented pipe, to stiffen sockets or provide thermal insulation |
EP1792704A1 (en) * | 2005-12-02 | 2007-06-06 | Sica S.P.A. | Method for socket-forming an end of a thermoplastic material tube, in particular of a polyolefinic material, tube for pressurised fluids |
-
1970
- 1970-11-04 GB GB5252770A patent/GB1324886A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2405121A1 (en) * | 1976-09-23 | 1979-05-04 | Yorkshire Imperial Plastics | Radial lamination of coaxial thermoplastic tubes - to make composite oriented pipe, to stiffen sockets or provide thermal insulation |
EP1792704A1 (en) * | 2005-12-02 | 2007-06-06 | Sica S.P.A. | Method for socket-forming an end of a thermoplastic material tube, in particular of a polyolefinic material, tube for pressurised fluids |
WO2007063122A1 (en) * | 2005-12-02 | 2007-06-07 | Sica S.P.A. | Method for socket-forming an end of a thermoplastic material tube, in particular of a polyolefinic material, tube for pressurised fluids |
US8211347B2 (en) | 2005-12-02 | 2012-07-03 | Sica S.P.A. | Method for socket-forming an end of a thermoplastic material tube, in particular of a polyolefinic material, tube for pressurized fluids |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4428900A (en) | Method of forming a pipe of oriented thermoplastics polymeric material | |
ES401152A1 (en) | Method of making a pipe-coupling part | |
ES340905A1 (en) | Tubing and piping of thermoplastics material | |
GB1572099A (en) | Manufacture of pipe couplings | |
EP0037177A3 (en) | Device for hydraulically expanding tubes | |
PT71207A (en) | METHOD AND APPARATUS FOR THE EXTRUSION OF TUBES AT PAROISCOMPOSITES | |
US2826784A (en) | Plastic pipe molding apparatus | |
NO873748D0 (en) | APPARATUS AND PROCEDURE FOR PRODUCTION OF RIBBEROORS. | |
GB1432539A (en) | Method of forming pipe | |
JPS58151018U (en) | ram extruder | |
GB1324886A (en) | Method and apparatus for forming a groove in a tube and tube having a groove formed therein | |
GB1531427A (en) | Device and method for producing a pipe joint having an internal groove therein | |
ES8100958A1 (en) | Method and apparatus for forming couplings of thermoplastic material. | |
DE3361274D1 (en) | Method and apparatus for providing a plastic pipe part with a socket end | |
GB1348029A (en) | Methods and apparatus for thickening walls of pipes | |
GB1326932A (en) | Method and apparatus for manufacturing pipe ends provided with an extreme end having an enlarged thickness of wall | |
GB1516156A (en) | Method of and an apparatus for the manufacture of hollow bodies of thermoplastics synthetic material | |
GB1395192A (en) | Method of and apparatus for forming an internal groove in a tubular plastics member | |
GB1417106A (en) | Method of and apparatus for sealing pipe joints | |
GB1248215A (en) | Method and apparatus for making branched conduits | |
ES394586A1 (en) | Means for smoothing the inside surface of plastic hose | |
FR1509351A (en) | Process for facilitating the recovery of microorganisms from an aqueous medium | |
GB1250330A (en) | ||
FR2205409A1 (en) | Tyre mould with heated bead-forming rings - with extra heating channel welded to the tube which carries a ring | |
GB1380325A (en) | Process for the production of shrinkable polyethylene tubing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) |