DK161388A - PROCEDURE AND APPARATUS FOR THE PREPARATION OF THIN-WEIGHTED BEARS - Google Patents

PROCEDURE AND APPARATUS FOR THE PREPARATION OF THIN-WEIGHTED BEARS

Info

Publication number
DK161388A
DK161388A DK161388A DK161388A DK161388A DK 161388 A DK161388 A DK 161388A DK 161388 A DK161388 A DK 161388A DK 161388 A DK161388 A DK 161388A DK 161388 A DK161388 A DK 161388A
Authority
DK
Denmark
Prior art keywords
strip
thin
bears
weighted
procedure
Prior art date
Application number
DK161388A
Other languages
Danish (da)
Other versions
DK161388D0 (en
DK167563B1 (en
Inventor
Frank-Ulrich Dyllus
Bernd Nichtweiss
Original Assignee
Reinzink 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 Reinzink Gmbh filed Critical Reinzink Gmbh
Publication of DK161388D0 publication Critical patent/DK161388D0/en
Publication of DK161388A publication Critical patent/DK161388A/en
Application granted granted Critical
Publication of DK167563B1 publication Critical patent/DK167563B1/en

Links

Classifications

    • 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
    • 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

Abstract

In a method of producing thin-walled tubes with a welded longitudinal seam from a strip of zinc or zinc wrought alloys, the strip is formed into a rounded section by rolling. In order to obtain automatic and continuous production of tubes at high speed, provision is made for the longitudinal edges of the section rounded from a strip to face one another in parallel, to be heated to welding temperature in a short zone of the longitudinal edges, to be brought together at the welding point and to be butt-welded to one another. <IMAGE>
DK161388A 1987-03-25 1988-03-24 PROCEDURE FOR THE MANUFACTURE OF THIN-WEIGHTED PIPES DK167563B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873709784 DE3709784A1 (en) 1987-03-25 1987-03-25 METHOD AND DEVICE FOR PRODUCING THIN-WALLED TUBES
DE3709784 1987-03-25

Publications (3)

Publication Number Publication Date
DK161388D0 DK161388D0 (en) 1988-03-24
DK161388A true DK161388A (en) 1988-09-26
DK167563B1 DK167563B1 (en) 1993-11-22

Family

ID=6323928

Family Applications (1)

Application Number Title Priority Date Filing Date
DK161388A DK167563B1 (en) 1987-03-25 1988-03-24 PROCEDURE FOR THE MANUFACTURE OF THIN-WEIGHTED PIPES

Country Status (4)

Country Link
EP (1) EP0284141B1 (en)
AT (1) ATE75169T1 (en)
DE (2) DE3709784A1 (en)
DK (1) DK167563B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1268946B1 (en) * 1994-02-18 1997-03-18 Mazzonetto Srl ZINC PIPE STRUCTURE OR ITS ALLOYS FOR TINSMITH AND PROCEDURES FOR ITS REALIZATION
DE19633423A1 (en) * 1996-08-20 1998-02-26 Rheinzink Gmbh Process for the production of thin-walled pipes
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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817364A (en) * 1952-11-13 1957-12-24 Thomas J Crawford Welded tubing
US3015018A (en) * 1959-07-13 1961-12-26 Magnetic Heating Corp Heating apparatus
FR1332630A (en) * 1962-06-04 1963-07-19 Lorraine Escaut Sa Method and device for adjusting the thickness of a metal tube during manufacture
DE1752774A1 (en) * 1968-07-12 1971-05-19 Finow Walzwerk Process and device for continuous weld seam preparation in the production of welded hollow profiles from metal strip
DE2607970C3 (en) * 1976-02-27 1981-08-06 Rheinisches Zinkwalzwerk Gmbh & Co Kg, 4354 Datteln Device and method for soldering thin-walled pipes
JPS5750093Y2 (en) * 1978-09-12 1982-11-02
EP0127127A3 (en) * 1983-05-27 1985-05-02 Rolf Mattes Process and apparatus for the production of a tube

Also Published As

Publication number Publication date
EP0284141A3 (en) 1989-02-15
ATE75169T1 (en) 1992-05-15
EP0284141B1 (en) 1992-04-22
DK161388D0 (en) 1988-03-24
DE3709784A1 (en) 1988-10-06
EP0284141A2 (en) 1988-09-28
DK167563B1 (en) 1993-11-22
DE3870294D1 (en) 1992-05-27

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed
PUP Patent expired