JPS54136555A - Scarfing method for surface flaw of steel material - Google Patents

Scarfing method for surface flaw of steel material

Info

Publication number
JPS54136555A
JPS54136555A JP4415378A JP4415378A JPS54136555A JP S54136555 A JPS54136555 A JP S54136555A JP 4415378 A JP4415378 A JP 4415378A JP 4415378 A JP4415378 A JP 4415378A JP S54136555 A JPS54136555 A JP S54136555A
Authority
JP
Japan
Prior art keywords
steel material
surface flaw
induced current
blowing
oxygen
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
JP4415378A
Other languages
Japanese (ja)
Inventor
Takashi Kusakabe
Yutaka Mihara
Koji Suzuki
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP4415378A priority Critical patent/JPS54136555A/en
Publication of JPS54136555A publication Critical patent/JPS54136555A/en
Pending legal-status Critical Current

Links

Landscapes

  • General Induction Heating (AREA)

Abstract

PURPOSE: To scarf the surface flaw in a short time, independently of the kind of steel material, by causing the induced current for selectively heating and melting the portion of surface flaw of the steel material, and by blowing thus formed molten slag with the injected oxygen.
CONSTITUTION: First of all, the portion of surface flaw 8 of the steel material 4 is placed just under the induction heating coil 5 of a square type. Next, the apparent power is supplied to the coil 5, hereby, the induced current flows in different directions through the portion of surface flaw 8 of the steel material 4; the density of the induced current flowing through this portion becomes higher as compared with other portions of skin layer; as a result, the surface flaw 8 is heated and is perfectly molten. By blowing this molten slag by the oxygen supplied from the oxygen blowing nozzle 6, the surface flaw 8 of the steel material 4 can be removed in a short time, besides, this scarfing method can be applied to the steel material independently of its kind, even for the round billet, similarly to above.
COPYRIGHT: (C)1979,JPO&Japio
JP4415378A 1978-04-17 1978-04-17 Scarfing method for surface flaw of steel material Pending JPS54136555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4415378A JPS54136555A (en) 1978-04-17 1978-04-17 Scarfing method for surface flaw of steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4415378A JPS54136555A (en) 1978-04-17 1978-04-17 Scarfing method for surface flaw of steel material

Publications (1)

Publication Number Publication Date
JPS54136555A true JPS54136555A (en) 1979-10-23

Family

ID=12683674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4415378A Pending JPS54136555A (en) 1978-04-17 1978-04-17 Scarfing method for surface flaw of steel material

Country Status (1)

Country Link
JP (1) JPS54136555A (en)

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