JPS5674302A - Reheating method for steel billet in hot rolling line - Google Patents

Reheating method for steel billet in hot rolling line

Info

Publication number
JPS5674302A
JPS5674302A JP15227179A JP15227179A JPS5674302A JP S5674302 A JPS5674302 A JP S5674302A JP 15227179 A JP15227179 A JP 15227179A JP 15227179 A JP15227179 A JP 15227179A JP S5674302 A JPS5674302 A JP S5674302A
Authority
JP
Japan
Prior art keywords
billet
temperature
electric power
induction heating
instrument
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
JP15227179A
Other languages
Japanese (ja)
Inventor
Tadashi Makino
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP15227179A priority Critical patent/JPS5674302A/en
Publication of JPS5674302A publication Critical patent/JPS5674302A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • 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
    • B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B2001/022—Blooms or billets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • 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)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To effectively contrive the improvement of accuracy of the product thickness, by installing the billet temperature measuring instrument and the induction heating unit at specified positions in the hot rolling line, and by reheating the billet by the electric induction to the aim temperature. CONSTITUTION:The rough rolled billet 1, running out of the roughing mill 3, passes the billet temperature measuring instrument 5 before entering the first stand of the finishing mill 4; hereby, the billet surface temperature T is continuously measured by the instrument 5. The electric power supply arithmetic unit 7, receiving the measured surface temperature T from the instrument 5, and the data for the billet on the feeding side of the first stand of the finishing mill 4 like as the aim heating temperature To, the billet thickness (t), the rolling speed (v), etc., set in and sent from the billet rolling condition setting console 8, operates the set point P for the electric power output of the induction heating electric power source 6. Depending on thus operated set point P, the induction heating electric power source 6 supplies the electric power to the induction heating coil 2; hereby, the billet temperature on the feed-in side of the finishing mill 4 is controlled to the aimed temperature T0.
JP15227179A 1979-11-24 1979-11-24 Reheating method for steel billet in hot rolling line Pending JPS5674302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15227179A JPS5674302A (en) 1979-11-24 1979-11-24 Reheating method for steel billet in hot rolling line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15227179A JPS5674302A (en) 1979-11-24 1979-11-24 Reheating method for steel billet in hot rolling line

Publications (1)

Publication Number Publication Date
JPS5674302A true JPS5674302A (en) 1981-06-19

Family

ID=15536842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15227179A Pending JPS5674302A (en) 1979-11-24 1979-11-24 Reheating method for steel billet in hot rolling line

Country Status (1)

Country Link
JP (1) JPS5674302A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02165802A (en) * 1988-12-20 1990-06-26 Sumitomo Metal Ind Ltd Method and device for rolling hot rolled thin sheet
KR101169125B1 (en) 2004-07-27 2012-07-26 쥬가이로 고교 가부시키가이샤 Material temperature control system in continuous strip material treatment line
CN104588408A (en) * 2015-01-23 2015-05-06 武钢集团昆明钢铁股份有限公司 Heating method for industrial pure-titanium square billet
EP4122616A1 (en) * 2021-07-23 2023-01-25 SMS Group GmbH Method and device for producing a metallic strip

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02165802A (en) * 1988-12-20 1990-06-26 Sumitomo Metal Ind Ltd Method and device for rolling hot rolled thin sheet
KR101169125B1 (en) 2004-07-27 2012-07-26 쥬가이로 고교 가부시키가이샤 Material temperature control system in continuous strip material treatment line
CN104588408A (en) * 2015-01-23 2015-05-06 武钢集团昆明钢铁股份有限公司 Heating method for industrial pure-titanium square billet
EP4122616A1 (en) * 2021-07-23 2023-01-25 SMS Group GmbH Method and device for producing a metallic strip

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