EP0374726A3 - Method for placing and drawing - Google Patents

Method for placing and drawing Download PDF

Info

Publication number
EP0374726A3
EP0374726A3 EP19890123099 EP89123099A EP0374726A3 EP 0374726 A3 EP0374726 A3 EP 0374726A3 EP 19890123099 EP19890123099 EP 19890123099 EP 89123099 A EP89123099 A EP 89123099A EP 0374726 A3 EP0374726 A3 EP 0374726A3
Authority
EP
European Patent Office
Prior art keywords
probe
pressure medium
seals
pulling
pressure
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.)
Withdrawn
Application number
EP19890123099
Other languages
German (de)
French (fr)
Other versions
EP0374726A2 (en
Inventor
Helmut Swars
Heribert Grewe
Karl Dr. Weiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
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 Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Publication of EP0374726A2 publication Critical patent/EP0374726A2/en
Publication of EP0374726A3 publication Critical patent/EP0374726A3/en
Withdrawn legal-status Critical Current

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

Die Erfindung betrifft Verfahren zum Einbringen oder Zie­ hen einer Druckmittelsonde, die durch paarweise angeord­ nete Dichtungen zum Begrenzen von mit einem Druckmittel­ system verbundenen Wirkabschnitten umfaßt, in ein Rohr, das durch Druckbeaufschlagung im Bereich der Wirkab­ schnitte über die Elastizitätsgrenze des Rohrmaterials aufweitbar ist. Um die Dichtungen beim Einführen und Zie­ hen der Sonde gegen übermäßigen Verschleiß zu schonen, wird beim Einführen und/oder Ziehen der Sonde Druckmittel durch die Sonde unter geringem Druck zugeführt und/oder es wird die Sonde beim Einführen und/oder Ziehen aus dem Rohr in drehender Bewegung gehalten und/oder es wird vor dem Einführen der Sonde Gleitmittel auf die Rohrinnenseite und/oder auf die Druckmittelsonde zumindest im Bereich der Dichtungen aufgebracht. The invention relates to methods for introducing or drawing hen a pressure medium probe, which is arranged in pairs nete seals to limit with a pressure medium system-connected active sections, in a tube, by applying pressure in the area of the effec cuts beyond the elastic limit of the pipe material is expandable. To the seals when inserting and pulling protect the probe against excessive wear, becomes pressure medium when inserting and / or pulling the probe supplied by the probe under low pressure and / or it the probe is inserted and / or pulled out of the tube kept in rotating motion and / or it is in front of the Insert the lubricant probe on the inside of the pipe and / or on the pressure medium probe at least in the area of Seals applied.

EP19890123099 1988-12-17 1989-12-14 Method for placing and drawing Withdrawn EP0374726A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3842594 1988-12-17
DE19883842594 DE3842594C1 (en) 1988-12-17 1988-12-17

Publications (2)

Publication Number Publication Date
EP0374726A2 EP0374726A2 (en) 1990-06-27
EP0374726A3 true EP0374726A3 (en) 1991-01-09

Family

ID=6369447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890123099 Withdrawn EP0374726A3 (en) 1988-12-17 1989-12-14 Method for placing and drawing

Country Status (2)

Country Link
EP (1) EP0374726A3 (en)
DE (1) DE3842594C1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055101A2 (en) * 1980-12-19 1982-06-30 Haskel, Inc. Apparatus and method for hydraulically forming joins between tubes and tube sheets
EP0058386A1 (en) * 1981-02-17 1982-08-25 Wilfried Busse Mandrel and Method of pressure-sealed installation of a tube in a tube sheet or the like
DE3312073A1 (en) * 1983-04-02 1984-10-11 Wilfried 4630 Bochum Busse Pressure build-up mandrel for the pressure-tight fixing of a tube
DE3643803A1 (en) * 1986-12-20 1988-06-30 Uni Cardan Ag ASSEMBLY DEVICE FOR BUILT-IN CAMSHAFTS AND METHOD FOR ASSEMBLY
US4761981A (en) * 1987-03-23 1988-08-09 Haskel, Inc. Swaging apparatus for flaring and anchoring tubes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055101A2 (en) * 1980-12-19 1982-06-30 Haskel, Inc. Apparatus and method for hydraulically forming joins between tubes and tube sheets
EP0058386A1 (en) * 1981-02-17 1982-08-25 Wilfried Busse Mandrel and Method of pressure-sealed installation of a tube in a tube sheet or the like
DE3312073A1 (en) * 1983-04-02 1984-10-11 Wilfried 4630 Bochum Busse Pressure build-up mandrel for the pressure-tight fixing of a tube
DE3643803A1 (en) * 1986-12-20 1988-06-30 Uni Cardan Ag ASSEMBLY DEVICE FOR BUILT-IN CAMSHAFTS AND METHOD FOR ASSEMBLY
US4761981A (en) * 1987-03-23 1988-08-09 Haskel, Inc. Swaging apparatus for flaring and anchoring tubes

Also Published As

Publication number Publication date
EP0374726A2 (en) 1990-06-27
DE3842594C1 (en) 1990-02-08

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