JPS5542109A - Surface defect preventing method of continuously cast slab - Google Patents

Surface defect preventing method of continuously cast slab

Info

Publication number
JPS5542109A
JPS5542109A JP11406978A JP11406978A JPS5542109A JP S5542109 A JPS5542109 A JP S5542109A JP 11406978 A JP11406978 A JP 11406978A JP 11406978 A JP11406978 A JP 11406978A JP S5542109 A JPS5542109 A JP S5542109A
Authority
JP
Japan
Prior art keywords
slab
corner
iron cores
coil
corner part
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
JP11406978A
Other languages
Japanese (ja)
Inventor
Akio Izumidate
Kenji Kido
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP11406978A priority Critical patent/JPS5542109A/en
Publication of JPS5542109A publication Critical patent/JPS5542109A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To prevent the occurrence of corner transverse cracks, etc. by using one or more inductors for induction heating or the like in the continuously cast slab passage area and heating the surface or corner parts of the slab to a suitable temperature then performing leveling of this slab. CONSTITUTION:Coil terminals 5, 6, coil 4 and U-form inductor iron cores 2 provided integrally with insulating materials 7 at both end parts are provided with a slab corner part 1 in-between. the inductors 2 are secured to the leveling machine inlet side section of the continuous casting unit by the supports not illustrated and is provided in the slab passage corresponding area. Its vertical and width directions are adjusted and set to a specified gap (20mm or under) by a drive motor. Current is supplied to the coil 4 and the corner part 1 is controlled to the preset temperature by the induced electromotive force formed in the closed loop of the iron cores 2, air gap 8, corner part 1, air gap 8' and iron cores 2. As compared to conventional methods, the number of corner cracks is reduced to 1/5 and the mean crack lengths thereof are drastically reduced to 1/10.
JP11406978A 1978-09-19 1978-09-19 Surface defect preventing method of continuously cast slab Pending JPS5542109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11406978A JPS5542109A (en) 1978-09-19 1978-09-19 Surface defect preventing method of continuously cast slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11406978A JPS5542109A (en) 1978-09-19 1978-09-19 Surface defect preventing method of continuously cast slab

Publications (1)

Publication Number Publication Date
JPS5542109A true JPS5542109A (en) 1980-03-25

Family

ID=14628248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11406978A Pending JPS5542109A (en) 1978-09-19 1978-09-19 Surface defect preventing method of continuously cast slab

Country Status (1)

Country Link
JP (1) JPS5542109A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007245178A (en) * 2006-03-15 2007-09-27 Jfe Steel Kk Method for continuously casting steel
JP2008183608A (en) * 2007-01-31 2008-08-14 Jfe Steel Kk Continuous casting method of steel
JP2012218062A (en) * 2011-04-13 2012-11-12 Nippon Steel Engineering Co Ltd Cast slab heating device and cast slab heating method of continuous casting apparatus
JP2014237168A (en) * 2013-06-10 2014-12-18 新日鉄住金エンジニアリング株式会社 Heating device of slab and heating method thereof
CN106938324A (en) * 2016-01-05 2017-07-11 鞍钢股份有限公司 Device and method for reducing corner cracks of microalloyed slab
CN109093087A (en) * 2018-09-29 2018-12-28 东北大学 A kind of slab corner heating means
JP2021087963A (en) * 2019-12-03 2021-06-10 日本製鉄株式会社 Slab heating device of continuous casting facility

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5091527A (en) * 1973-12-14 1975-07-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5091527A (en) * 1973-12-14 1975-07-22

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007245178A (en) * 2006-03-15 2007-09-27 Jfe Steel Kk Method for continuously casting steel
JP2008183608A (en) * 2007-01-31 2008-08-14 Jfe Steel Kk Continuous casting method of steel
JP2012218062A (en) * 2011-04-13 2012-11-12 Nippon Steel Engineering Co Ltd Cast slab heating device and cast slab heating method of continuous casting apparatus
JP2014237168A (en) * 2013-06-10 2014-12-18 新日鉄住金エンジニアリング株式会社 Heating device of slab and heating method thereof
CN106938324A (en) * 2016-01-05 2017-07-11 鞍钢股份有限公司 Device and method for reducing corner cracks of microalloyed slab
CN109093087A (en) * 2018-09-29 2018-12-28 东北大学 A kind of slab corner heating means
JP2021087963A (en) * 2019-12-03 2021-06-10 日本製鉄株式会社 Slab heating device of continuous casting facility

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