DK0824976T3 - Process for the manufacture of thin-walled tubes - Google Patents

Process for the manufacture of thin-walled tubes

Info

Publication number
DK0824976T3
DK0824976T3 DK97114253T DK97114253T DK0824976T3 DK 0824976 T3 DK0824976 T3 DK 0824976T3 DK 97114253 T DK97114253 T DK 97114253T DK 97114253 T DK97114253 T DK 97114253T DK 0824976 T3 DK0824976 T3 DK 0824976T3
Authority
DK
Denmark
Prior art keywords
manufacture
zinc
thin
degrees
strip
Prior art date
Application number
DK97114253T
Other languages
Danish (da)
Inventor
Frank-Ulrich Dyllus
Martin Binkowski
Ulrich Lachenit
Adolf Stradmann
Original Assignee
Rheinzink 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 Rheinzink Gmbh filed Critical Rheinzink Gmbh
Application granted granted Critical
Publication of DK0824976T3 publication Critical patent/DK0824976T3/en

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
    • B23K13/00—Welding by high-frequency current heating
    • B23K13/01—Welding by high-frequency current heating by induction heating
    • B23K13/02—Seam welding
    • B23K13/025—Seam welding for tubes
    • 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
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes

Abstract

The method is especially for manufacture of rainwater downpipes with resistance-welded seams, from continuous metal strip of zinc or zinc alloy, preferably zinc-copper-titanium alloy. The strip is rounded, forming a V-shaped welding gap. The gap has an angle of 2-10 degrees. The longitudinal strip edges are machined immediately before being welded, charged with protective gas within the welding zone, and heated to a temperature of 400-440 degrees C over a length of 2-20 mm.
DK97114253T 1996-08-20 1997-08-19 Process for the manufacture of thin-walled tubes DK0824976T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19633423A DE19633423A1 (en) 1996-08-20 1996-08-20 Process for the production of thin-walled pipes

Publications (1)

Publication Number Publication Date
DK0824976T3 true DK0824976T3 (en) 2003-04-22

Family

ID=7803041

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97114253T DK0824976T3 (en) 1996-08-20 1997-08-19 Process for the manufacture of thin-walled tubes

Country Status (4)

Country Link
EP (1) EP0824976B1 (en)
AT (1) ATE230316T1 (en)
DE (2) DE19633423A1 (en)
DK (1) DK0824976T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10014519A1 (en) * 2000-03-23 2001-10-11 Rheinzink Gmbh Use of pipes made of titanium zinc according to EN 988 and bending processes for the production of pipe bends
DE10137479A1 (en) * 2001-08-02 2003-02-27 Wurzer Georg Welding process for connecting the edges of stainless steel sheets or profiles and manufacturing machine for hollow profiles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796508A (en) * 1952-07-25 1957-06-18 Aluminum Supply Co Method for producing non-ferrous continuous weld tubing
DE3709784A1 (en) * 1987-03-25 1988-10-06 Rheinzink Gmbh METHOD AND DEVICE FOR PRODUCING THIN-WALLED TUBES
US5344062A (en) * 1993-06-24 1994-09-06 The Idod Trust Method of forming seamed metal tube

Also Published As

Publication number Publication date
DE19633423A1 (en) 1998-02-26
ATE230316T1 (en) 2003-01-15
EP0824976A3 (en) 2000-10-18
EP0824976A2 (en) 1998-02-25
DE59709044D1 (en) 2003-02-06
EP0824976B1 (en) 2003-01-02

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