FR2485958A1 - ALUMINUM TUBE FORMED FROM A STRIP - Google Patents

ALUMINUM TUBE FORMED FROM A STRIP

Info

Publication number
FR2485958A1
FR2485958A1 FR8108521A FR8108521A FR2485958A1 FR 2485958 A1 FR2485958 A1 FR 2485958A1 FR 8108521 A FR8108521 A FR 8108521A FR 8108521 A FR8108521 A FR 8108521A FR 2485958 A1 FR2485958 A1 FR 2485958A1
Authority
FR
France
Prior art keywords
small diameter
spires
band
aluminum
tube
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Withdrawn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
FR8108521A
Other languages
French (fr)
Inventor
Hans-Ulrich Dietzel
Hermann Bentele
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.)
Mecano Bundy GmbH
Original Assignee
Mecano Bundy GmbH
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 Mecano Bundy GmbH filed Critical Mecano Bundy GmbH
Publication of FR2485958A1 publication Critical patent/FR2485958A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • B23K33/006—Filling of continuous seams for cylindrical workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/09—Making tubes with welded or soldered seams of coated strip material ; Making multi-wall tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Metal Rolling (AREA)
  • Arc Welding In General (AREA)

Abstract

LE DOMAINE DE L'INVENTION EST LA FABRICATION DE TUBES SOUDES DE PETIT DIAMETRE. LE PROBLEME TECHNIQUE POSE CONSISTE A FOURNIR UN TEL TUBE DE PETIT DIAMETRE, EN ALUMINIUM, FABRIQUE DIRECTEMENT A UN TRES PETIT DIAMETRE, PAR CONFORMATION D'UNE BANDE ET SANS NECESSITER D'OPERATION ULTERIEURE D'ETIRAGE. SUIVANT L'INVENTION, LE TUBE EST FORME PAR ENROULEMENT D'UNE BANDE EN SECTION TUBULAIRE COMPRENANT AU MOINS DEUX SPIRES, LA ZONE DE JONCTION SITUEE AU NIVEAU DES BORDS DES DEUX SPIRES ETANT CONTRE-COUDEE AVEC UNE AMPLITUDE EGALE A L'EPAISSEUR DE LA BANDE, LES DEUX COUCHES ETANT SOUDEES SUR TOUTE LEUR SURFACE. L'UTILISATION PRINCIPALE DE L'INVENTION RESIDE DANS LA FABRICATION DE TUBES D'ALUMINIUM DE PETIT DIAMETRE A PRIX DE REVIENT TRES REDUIT.THE FIELD OF THE INVENTION IS THE MANUFACTURING OF SMALL DIAMETER WELDED TUBES. THE TECHNICAL PROBLEM POSED CONSISTS OF PROVIDING SUCH A SMALL DIAMETER TUBE, IN ALUMINUM, MANUFACTURED DIRECTLY TO A VERY SMALL DIAMETER, BY CONFORMING TO A BAND AND WITHOUT REQUIRING A FURTHER STRETCHING OPERATION. FOLLOWING THE INVENTION, THE TUBE IS SHAPED BY WINDING A BAND IN TUBULAR SECTION INCLUDING AT LEAST TWO SPIRES, THE JUNCTION ZONE LOCATED AT THE LEVEL OF THE EDGES OF THE TWO SPIRES BEING COUNTERBENT WITH AN AMPLITUDE EQUAL TO THE THICKNESS OF THE TAPE, BOTH LAYERS BEING WELDED OVER THEIR ENTIRE SURFACE. THE MAIN USE OF THE INVENTION IS IN THE MANUFACTURE OF SMALL DIAMETER ALUMINUM TUBES AT A VERY LOW COST.

FR8108521A 1980-07-03 1981-04-29 ALUMINUM TUBE FORMED FROM A STRIP Withdrawn FR2485958A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803025483 DE3025483A1 (en) 1980-07-03 1980-07-03 TAPE ALUMINUM TUBE

Publications (1)

Publication Number Publication Date
FR2485958A1 true FR2485958A1 (en) 1982-01-08

Family

ID=6106464

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8108521A Withdrawn FR2485958A1 (en) 1980-07-03 1981-04-29 ALUMINUM TUBE FORMED FROM A STRIP

Country Status (10)

Country Link
JP (1) JPS5731493A (en)
AU (1) AU7208881A (en)
BR (1) BR8103650A (en)
DE (1) DE3025483A1 (en)
ES (1) ES503621A0 (en)
FR (1) FR2485958A1 (en)
GB (1) GB2079891A (en)
IT (1) IT1137249B (en)
SE (1) SE8102896L (en)
ZA (1) ZA813504B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3071441B2 (en) * 1990-02-03 2000-07-31 臼井国際産業株式会社 Multiple wound steel pipe, method for producing the same, and strip used for the same

Also Published As

Publication number Publication date
AU7208881A (en) 1982-01-07
BR8103650A (en) 1982-08-24
ZA813504B (en) 1982-06-30
GB2079891A (en) 1982-01-27
ES8302253A1 (en) 1982-05-16
SE8102896L (en) 1982-01-04
IT8122233A0 (en) 1981-06-10
ES503621A0 (en) 1982-05-16
IT1137249B (en) 1986-09-03
DE3025483A1 (en) 1982-01-21
JPS5731493A (en) 1982-02-19

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Legal Events

Date Code Title Description
ST Notification of lapse