ATE42226T1 - DEVICE FOR HYDRAULIC EXPANSION OF PIPE SECTIONS. - Google Patents

DEVICE FOR HYDRAULIC EXPANSION OF PIPE SECTIONS.

Info

Publication number
ATE42226T1
ATE42226T1 AT86111158T AT86111158T ATE42226T1 AT E42226 T1 ATE42226 T1 AT E42226T1 AT 86111158 T AT86111158 T AT 86111158T AT 86111158 T AT86111158 T AT 86111158T AT E42226 T1 ATE42226 T1 AT E42226T1
Authority
AT
Austria
Prior art keywords
outer periphery
probe
seal
pressure medium
disposed
Prior art date
Application number
AT86111158T
Other languages
German (de)
Inventor
Herbert Krips
Miroslan Dr Podhorsky
Original Assignee
Balcke Duerr Ag
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 Balcke Duerr Ag filed Critical Balcke Duerr Ag
Application granted granted Critical
Publication of ATE42226T1 publication Critical patent/ATE42226T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B21D39/203—Tube expanders with mandrels, e.g. expandable expandable by fluid or elastic material

Abstract

1. A hydraulic tube expander having : a cylindrical probe (3) introducible into the tube ; at least two spaced-apart ring seals (4) each received in an annular groove (6) in the probe (3) ; and a connecting line (7) which is connected to a pressure medium supply and which supplies pressure medium to the seal-receiving grooves (6) and to the probe outer periphery disposed between the at least two ring seals (4), characterised in that the pressure medium supply to the probe outer periphery disposed between the at least two ring seals (4) is solely by way of at least one of the seal-receiving grooves (6) and at least one aperture (9, 9a) between the groove (6) and the said outer periphery, such aperture being disposed on that side of the groove (6) which is near the outer periphery, is closed in the normal state by the ring seal (4), the same being operative as a valve lid, and is open only when the ring seal (4) engages sealingly in the expanded state with the tube (2).
AT86111158T 1985-09-12 1986-08-12 DEVICE FOR HYDRAULIC EXPANSION OF PIPE SECTIONS. ATE42226T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3532499A DE3532499C1 (en) 1985-09-12 1985-09-12 Device for the hydraulic expansion of pipe sections
EP86111158A EP0215294B1 (en) 1985-09-12 1986-08-12 Apparatus for the hydraulic expansion of tubes

Publications (1)

Publication Number Publication Date
ATE42226T1 true ATE42226T1 (en) 1989-05-15

Family

ID=6280738

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86111158T ATE42226T1 (en) 1985-09-12 1986-08-12 DEVICE FOR HYDRAULIC EXPANSION OF PIPE SECTIONS.

Country Status (5)

Country Link
EP (1) EP0215294B1 (en)
JP (1) JPH0647204B2 (en)
AT (1) ATE42226T1 (en)
DE (1) DE3532499C1 (en)
ES (1) ES2000889A6 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9319499D0 (en) * 1993-09-21 1993-11-03 Brownbill Thomas D Improvements in and relating to the shaping of articles
DE19846323A1 (en) * 1998-10-08 2000-04-20 Alusuisse Lonza Services Ag Internal high pressure deformation process for making single or multi-chamber strip, comprises taking at least one sealing element radially outward through working fluid
DE19909949B4 (en) * 1998-10-08 2004-11-25 Alcan Technology & Management Ag Device and method for reshaping a hollow profile or the like workpiece by means of hydroforming
DE19851326C1 (en) * 1998-11-06 2000-02-10 Alusuisse Lonza Services Ag Method for pressing hollow structures through internal pressure has equal thickness walls each side of the corners to prevent rolling of the corners
DE19932420C2 (en) * 1999-07-15 2003-04-24 Alcan Tech & Man Ag Method and tool for connecting two molded parts, hollow profile with a coupling or flange element fixed to it at one end, and use
DE19946010B4 (en) * 1999-08-05 2006-01-05 Alcan Technology & Management Ag Method for forming an initial profile od. Like. Workpiece by means of a hydroforming and profile and its use
DE19955506B4 (en) * 1999-11-18 2006-05-04 Alcan Technology & Management Ag Method for forming an initial profile or the like. Workpiece as well as profile for it
DE10153224B4 (en) * 2001-10-31 2005-09-15 Alcan Technology & Management Ag Method and device for molding and / or trimming a hollow body from a hollow profile or the like. workpiece
EP1447283A3 (en) * 2003-02-17 2005-01-19 Alcan Technology & Management Ltd. Hollow profile and method of its production
DE102015114345A1 (en) * 2015-04-28 2016-11-03 Sms Group Gmbh Progressively efficient tube expander and method for gradually expanding a tube
CN107262616A (en) * 2017-07-13 2017-10-20 东方电气(广州)重型机器有限公司 The exchanger tubes and tubesheets only swollen Joining Technology not welded is welded on Heat Exchanger of Nuclear Power Plant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5550933A (en) * 1978-10-09 1980-04-14 Mitsubishi Heavy Ind Ltd Pipe expanding mandrel
DE3105712A1 (en) * 1981-02-17 1982-08-26 Wilfried 4630 Bochum Busse Process for the pressuretight fixing of a tube in a tube plate or the like
DE3203144A1 (en) * 1982-01-30 1983-08-11 Wilfried 4630 Bochum Busse Method for the pressure-tight fixing of a tube in a tube plate or the like

Also Published As

Publication number Publication date
JPH0647204B2 (en) 1994-06-22
EP0215294A2 (en) 1987-03-25
JPS6263022A (en) 1987-03-19
EP0215294B1 (en) 1989-04-19
EP0215294A3 (en) 1987-09-30
DE3532499C1 (en) 1986-11-20
ES2000889A6 (en) 1988-03-16

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee