DE3808258C2 - - Google Patents

Info

Publication number
DE3808258C2
DE3808258C2 DE19883808258 DE3808258A DE3808258C2 DE 3808258 C2 DE3808258 C2 DE 3808258C2 DE 19883808258 DE19883808258 DE 19883808258 DE 3808258 A DE3808258 A DE 3808258A DE 3808258 C2 DE3808258 C2 DE 3808258C2
Authority
DE
Germany
Prior art keywords
production
line
inductors
pipe
weld
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.)
Expired - Lifetime
Application number
DE19883808258
Other languages
German (de)
English (en)
Other versions
DE3808258A1 (de
Inventor
Ludwig Kumbrink
Johannes Dipl.-Ing. 4400 Muenster De Spliethoff
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.)
Krupp Hoesch Tecna GmbH
Original Assignee
Hoesch AG
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 Hoesch AG filed Critical Hoesch AG
Priority to DE19883808258 priority Critical patent/DE3808258A1/de
Publication of DE3808258A1 publication Critical patent/DE3808258A1/de
Application granted granted Critical
Publication of DE3808258C2 publication Critical patent/DE3808258C2/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
DE19883808258 1988-03-12 1988-03-12 Kontinuierliches nahtgluehverfahren Granted DE3808258A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883808258 DE3808258A1 (de) 1988-03-12 1988-03-12 Kontinuierliches nahtgluehverfahren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883808258 DE3808258A1 (de) 1988-03-12 1988-03-12 Kontinuierliches nahtgluehverfahren

Publications (2)

Publication Number Publication Date
DE3808258A1 DE3808258A1 (de) 1989-09-21
DE3808258C2 true DE3808258C2 (ja) 1990-06-21

Family

ID=6349544

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883808258 Granted DE3808258A1 (de) 1988-03-12 1988-03-12 Kontinuierliches nahtgluehverfahren

Country Status (1)

Country Link
DE (1) DE3808258A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010309C1 (en) * 1990-03-30 1991-05-23 Maschinenfabrik Niehoff Gmbh & Co Kg, 8540 Schwabach, De Maintenance of annealing temp. even after stoppage - involves measuring speed of wire and tacho:generator output voltage to produce control signal for thyristor
DE10152685A1 (de) * 2001-10-19 2003-05-08 Thyssenkrupp Stahl Ag Vorrichtung zur lokalen induktiven Wärmebehandlung eines geschweißten Werkstücks

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317509A (en) * 1976-08-03 1978-02-17 Nippon Kokan Kk <Nkk> Method and apparatus for induction heating of metallic material
DE3316023A1 (de) * 1982-05-06 1983-12-01 UOP Inc., 60016 Des Plaines, Ill. Verfahren und vorrichtung zum selektiven gluehen oder erhitzen eines abschnittes einer sich bewegbaren roehre oder dergleichen

Also Published As

Publication number Publication date
DE3808258A1 (de) 1989-09-21

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HOESCH MASCHINENFABRIK DEUTSCHLAND AG, 44145 DORTM

8320 Willingness to grant licenses declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: KRUPP HOESCH TECNA AG, 44137 DORTMUND, DE

8327 Change in the person/name/address of the patent owner

Owner name: KRUPP HOESCH TECNA GMBH, 44137 DORTMUND, DE

8339 Ceased/non-payment of the annual fee