公开(公告)号：EP0879131A2

公开(公告)日：1998-11-25

申请号：EP96918716.0

申请日：1996-06-20

申请人： Uponor B.V.

发明人： KIRJAVAINEN, Kari ,  JÄRVENKYLÄ, Jyri

IPC分类号： E03F7 ,  B29B15 ,  B29C44 ,  B29C47 ,  B29C55 ,  B29C63 ,  B29C70 ,  B32B1 ,  B32B5 ,  B32B7 ,  B32B37 ,  F16L1 ,  F16L9 ,  F16L11 ,  F16L55 ,  F16L58 ,  F17D5 ,  B29C53 ,  B29K23 ,  B29K105 ,  B29L9 ,  B29L23

CPC分类号： B32B1/08 ,  B29C44/22 ,  B29C47/0023 ,  B29C47/0033 ,  B29C47/0057 ,  B29C47/021 ,  B29C47/022 ,  B29C47/065 ,  B29C47/20 ,  B29C47/24 ,  B29C47/26 ,  B29C47/261 ,  B29C47/265 ,  B29C47/52 ,  B29C47/522 ,  B29C47/527 ,  B29C47/705 ,  B29C47/76 ,  B29C47/8835 ,  B29C47/884 ,  B29C47/903 ,  B29C47/94 ,  B29C53/58 ,  B29C55/00 ,  B29C55/24 ,  B29C63/34 ,  B29C70/50 ,  B29K2023/06 ,  B29K2023/0691 ,  B29K2023/12 ,  B29K2071/00 ,  B29K2077/00 ,  B29K2995/0051 ,  B29K2995/0053 ,  B29K2995/0072 ,  B29L2009/00 ,  B29L2023/00 ,  B29L2023/006 ,  B29L2023/18 ,  B32B7/12 ,  B32B15/08 ,  B32B2597/00 ,  F16L9/121 ,  F16L9/147 ,  F16L9/21 ,  F16L11/15 ,  F16L55/162 ,  Y10T428/1359 ,  Y10T428/1376 ,  Y10T428/139 ,  Y10T428/1393 ,  Y10T428/249958 ,  Y10T428/249984 ,  Y10T428/24999 ,  Y10T428/249992 ,  Y10T428/249993

摘要： An extrusion apparatus and method, and a tubular product and a pipe made of several different materials. The extrusion apparatus according to the invention comprises at least one stator (1, 6, 10), at least one rotor (2, 2a, 2b), and at least one annular feed gap (3) situated between the stator (1, 6, 10) and the rotor (2, 2a, 2b). The diameter of the feed gap (3) decreases at least partly continuously in the direction of flow of the plastic material to be extruded, and its diameter also increases continuously at least at a section of its length in the aforementioned direction of flow. With such a construction, the pressure acting on the structure of the extrusion apparatus can be considerably balanced, i.e. the apparatus can be made more durable. The invention also relates to a tubular product and a pipe made of several different materials.

公开(公告)号：EP0851806A1

公开(公告)日：1998-07-08

申请号：EP96931355.0

申请日：1996-09-20

申请人： Uponor B.V. ,  VINIDEX TUBEMAKERS PTY. LTD.

发明人： JOHANSSON, Mats ,  JÄRVENKYLÄ, Jyri

IPC分类号： B29C57 ,  F16L55 ,  B29C35 ,  B29C65 ,  B29K101 ,  B29L23

CPC分类号： B29C57/02 ,  B29C65/14 ,  B29C65/1412 ,  B29C2035/0822 ,  B29K2023/0691 ,  B29K2995/005 ,  B29L2009/00 ,  F16L55/1654

摘要： A method of socketing a pipe of oriented plastic having an annular groove inside the socket. An end portion (15) of the pipe is pushed onto a cylindrical mandrel element (11) and the region (l1) of the end portion at the opening thereof where the groove is to be located is heated to a temperature above the glass transition temperature of amorphous plastic and the crystalline melting point of crystalline plastic, respectively. The rest of the end portion is maintained at a temperature below the glass transition temperature or the crystalline melting point, respectively. The end portion (15) when said region is at a temperature above the glass transition temperature or the crystalline melting point, respectively, is pushed onto a second mandrel element (13) axially aligned with said first mandrel element the bottom portion of the socket being formed by said second mandrel element (13). The rest of the end portion is expanded to form the bottom portion of the socket. The end portion of the pipe is cooled and is then withdrawn from the mandrel elements.

公开(公告)号：EP0850132A1

公开(公告)日：1998-07-01

申请号：EP96930182.0

申请日：1996-09-10

申请人： Uponor B.V.

发明人： HÖLSÖ, Eino ,  JÄRVENKYLÄ, Jyri

IPC分类号： B29C47 ,  B29D23 ,  B29L23

CPC分类号： B29C47/22 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/0033 ,  B29C47/0038 ,  B29C47/126 ,  B29L2023/003

摘要： The present invention relates to an apparatus for producing pipes of a mouldable material, preferably plastic, comprising an extruder, a cylindrical mould comprising chill moulds (4, 5), a mandrel (8) inside the extruder and a kernel (9) as an extension of the mandrel. The mandrel is attached at its front end to the extruder. The mandrel (8) and the kernel (9) can be kept concentric with the extruder and the mould if the mandrel and the kernel are joined to each other in such a manner that the angle between their centre lines is adjustable.

公开(公告)号：EP0820566A1

公开(公告)日：1998-01-28

申请号：EP95914374.0

申请日：1995-04-03

申请人： Uponor B.V.

发明人： JÄRVENKYLÄ, Jyri ,  OLSSON, Björn ,  SCHARWÄCHTER, Dieter ,  AGREN, Lennart

IPC分类号： F16L11 ,  B29C53 ,  B29D23 ,  B32B1 ,  B32B5

CPC分类号： B32B1/08 ,  B29C53/30 ,  B29D23/18 ,  B29K2105/26 ,  B29L2009/00 ,  B32B3/28 ,  B32B5/18 ,  B32B27/065 ,  B32B27/08 ,  B32B27/32 ,  B32B2250/242 ,  B32B2272/00 ,  B32B2305/022 ,  B32B2323/04 ,  B32B2323/10 ,  B32B2597/00 ,  F16L11/11

摘要： The invention relates to a method for manufacturing a multi-layer corrugated pipe and to a corrugated pipe manufactured by the method and comprising an inner tube (2), a corrugated outer tube (5) and a plastic layer therebetween. Separate layers (3, 6) of plastic are formed on the outer surface of the inner tube (2) and the inner surface of the outer tube (5), said separate layers of plastic being affixed to one another at least at the web portions (5a) of the corrugations of the outer tube (5) when the inner tube and outer tube are connected.

公开(公告)号：EP0870152A1

公开(公告)日：1998-10-14

申请号：EP97900841.0

申请日：1997-01-13

申请人： Uponor B.V.

发明人： GREN, Lennart ,  MOLLSJÖ, Bo ,  LUND, Arne ,  LEO, Harri ,  DICKINSON, Alan, John ,  JÄRVENKYLÄ, Jyri ,  JORMAKKA, Veli-Pekka

IPC分类号： F16L55 ,  B29C57 ,  B29C63 ,  F16L58 ,  B29C35 ,  B29C65

CPC分类号： F16L55/1654 ,  B29C57/02 ,  B29C63/343 ,  B29C65/14 ,  B29C65/1412 ,  B29C65/1416 ,  B29C65/1435 ,  B29C2035/0822 ,  B29K2023/0691 ,  B29K2995/005 ,  B29L2009/00

摘要： Method for renovation of pipelines, comprising introduction of a lining pipe into an existing pipeline, said lining pipe having a length corresponding to the length to be renovated, and consisting of a fusible polymer in a folded condition and unfolding of the lining pipe in order to line the pipeline. The lining pipe is built up by introducing lining layer (1, 4, 5, 6, 7, 8, 9) into the pipeline to be lined, which layers are pressurised and successively fused together by subjecting each layer (1, 4-9) to fusion heat from a heat-source (3), which is carried along the inside of the innermost layer of lining built up so far.

公开(公告)号：EP0864060A1

公开(公告)日：1998-09-16

申请号：EP96940678.0

申请日：1996-12-12

申请人： Uponor B.V.

发明人： JÄRVENKYLÄ, Jyri

IPC分类号： B29B15 ,  B29C44 ,  B29C47 ,  B29C55 ,  B29D23 ,  B32B1 ,  F16L9 ,  F16L59 ,  B29C53

CPC分类号： B32B1/08 ,  B29C44/22 ,  B29C47/0023 ,  B29C47/0033 ,  B29C47/0042 ,  B29C47/0057 ,  B29C47/021 ,  B29C47/022 ,  B29C47/065 ,  B29C47/126 ,  B29C47/20 ,  B29C47/24 ,  B29C47/26 ,  B29C47/261 ,  B29C47/265 ,  B29C47/268 ,  B29C47/522 ,  B29C47/527 ,  B29C47/76 ,  B29C47/8835 ,  B29C47/884 ,  B29C47/902 ,  B29C47/903 ,  B29C47/904 ,  B29C53/58 ,  B29C55/24 ,  B29C2791/006 ,  B29C2791/007 ,  B29K2023/06 ,  B29K2023/0633 ,  B29K2023/0641 ,  B29K2023/065 ,  B29K2023/0691 ,  B29K2023/12 ,  B29K2027/06 ,  B29K2071/00 ,  B29K2077/00 ,  B29K2105/0032 ,  B29K2105/005 ,  B29K2105/04 ,  B29K2105/12 ,  B29K2105/14 ,  B29K2995/0051 ,  B29K2995/0053 ,  B29K2995/0089 ,  B29L2009/00 ,  B29L2016/00 ,  B29L2023/00 ,  B29L2023/22 ,  B32B5/18 ,  B32B27/065 ,  B32B27/08 ,  B32B27/12 ,  B32B2266/025 ,  B32B2323/04 ,  B32B2323/043 ,  B32B2323/046 ,  B32B2597/00 ,  F16L9/121 ,  F16L59/143 ,  H02G3/0481

摘要： The invention relates to a co-extruded multilayer plastic pipe comprising an inner pipe (1) and an outer pipe (2) and between them a middle layer (3) of a softer material than the inner pipe. The invention also relates to a method for producing a co-extruded multilayer pipe in a multilayer extruder, and an apparatus for producing a co-extruded multilayer pipe.