FR2348763A1 - Contracting tubes under high pressure - has mandrel reflecting required shape held in tube and assembly covered with rubber sleeve - Google Patents

Contracting tubes under high pressure - has mandrel reflecting required shape held in tube and assembly covered with rubber sleeve

Info

Publication number
FR2348763A1
FR2348763A1 FR7611724A FR7611724A FR2348763A1 FR 2348763 A1 FR2348763 A1 FR 2348763A1 FR 7611724 A FR7611724 A FR 7611724A FR 7611724 A FR7611724 A FR 7611724A FR 2348763 A1 FR2348763 A1 FR 2348763A1
Authority
FR
France
Prior art keywords
mandrel
tube
high pressure
under high
rubber sleeve
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.)
Granted
Application number
FR7611724A
Other languages
French (fr)
Other versions
FR2348763B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7611724A priority Critical patent/FR2348763A1/en
Publication of FR2348763A1 publication Critical patent/FR2348763A1/en
Application granted granted Critical
Publication of FR2348763B1 publication Critical patent/FR2348763B1/fr
Granted 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/041—Means for controlling fluid parameters, e.g. pressure or temperature
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/047—Mould construction

Abstract

A mandrel (1) having any desired shape is placed inside the end (2) of a tube (3) to be contracted. The mandrel comprises a cylindrical head (4) at one end, provided with a sealing joint (5), resistant to very high pressures, and with a central bore which improved the seal of the joint. At the other end of the mandrel is a screw threaded stub (10) onto which is fixed a nut (11) abutting onto the end of the tube. A supple sealing jacket (12), for example made from india rubber, fits over the end of the tube and is fixed by a circular ring. The whole assembly is placed ina pressure chamber and subjected to a pressure of over 1000 bars resulting in the end of the tube adopting the shape of the mandrel.
FR7611724A 1976-04-21 1976-04-21 Contracting tubes under high pressure - has mandrel reflecting required shape held in tube and assembly covered with rubber sleeve Granted FR2348763A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7611724A FR2348763A1 (en) 1976-04-21 1976-04-21 Contracting tubes under high pressure - has mandrel reflecting required shape held in tube and assembly covered with rubber sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7611724A FR2348763A1 (en) 1976-04-21 1976-04-21 Contracting tubes under high pressure - has mandrel reflecting required shape held in tube and assembly covered with rubber sleeve

Publications (2)

Publication Number Publication Date
FR2348763A1 true FR2348763A1 (en) 1977-11-18
FR2348763B1 FR2348763B1 (en) 1981-03-20

Family

ID=9172099

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7611724A Granted FR2348763A1 (en) 1976-04-21 1976-04-21 Contracting tubes under high pressure - has mandrel reflecting required shape held in tube and assembly covered with rubber sleeve

Country Status (1)

Country Link
FR (1) FR2348763A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510901A1 (en) * 1981-08-04 1983-02-11 Martel Catala & Cie Ets Multi-tube evaporator - employs tubes crimped at one end to form flow restriction
EP0843145A3 (en) * 1996-11-18 1999-05-12 General Motors Corporation Heat exchanger manifold
WO2019194800A1 (en) * 2018-04-04 2019-10-10 Weatherford Technology Holdings, Llc Downhole whipstock and method of manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510901A1 (en) * 1981-08-04 1983-02-11 Martel Catala & Cie Ets Multi-tube evaporator - employs tubes crimped at one end to form flow restriction
EP0843145A3 (en) * 1996-11-18 1999-05-12 General Motors Corporation Heat exchanger manifold
WO2019194800A1 (en) * 2018-04-04 2019-10-10 Weatherford Technology Holdings, Llc Downhole whipstock and method of manufacture

Also Published As

Publication number Publication date
FR2348763B1 (en) 1981-03-20

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse