JPS57206584A - Producing device for electric welded pipe - Google Patents

Producing device for electric welded pipe

Info

Publication number
JPS57206584A
JPS57206584A JP9021281A JP9021281A JPS57206584A JP S57206584 A JPS57206584 A JP S57206584A JP 9021281 A JP9021281 A JP 9021281A JP 9021281 A JP9021281 A JP 9021281A JP S57206584 A JPS57206584 A JP S57206584A
Authority
JP
Japan
Prior art keywords
producing device
core
pipe
welded
impedor
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.)
Pending
Application number
JP9021281A
Other languages
Japanese (ja)
Inventor
Seiji Watabe
Motohiko Makino
Tokio Yokoyama
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP9021281A priority Critical patent/JPS57206584A/en
Publication of JPS57206584A publication Critical patent/JPS57206584A/en
Pending 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE:To improve welding efficiency and speed by forming an impedor core disposed on the inner side of a pipe to be welded of laminates having a prescribed satd. magnetic flux density and thickness. CONSTITUTION:A high frequency induction heating coil 3 is provided on the outside circumference of a steel pipe 1 to be welded and an impedor core 4 is provided in the pipe 1. Such core 4 is formed of laminates of sheet-like magnetic materials of >=0.5T satd. magnetix flux density and <=50mum thickness. Welding efficiency and speed are improved by a producing device for electric welded pipes by a high frequency indication method or a brush contact method.
JP9021281A 1981-06-13 1981-06-13 Producing device for electric welded pipe Pending JPS57206584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9021281A JPS57206584A (en) 1981-06-13 1981-06-13 Producing device for electric welded pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9021281A JPS57206584A (en) 1981-06-13 1981-06-13 Producing device for electric welded pipe

Publications (1)

Publication Number Publication Date
JPS57206584A true JPS57206584A (en) 1982-12-17

Family

ID=13992172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9021281A Pending JPS57206584A (en) 1981-06-13 1981-06-13 Producing device for electric welded pipe

Country Status (1)

Country Link
JP (1) JPS57206584A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234983U (en) * 1985-08-20 1987-03-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234983U (en) * 1985-08-20 1987-03-02

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