JPS566706A - Hot width-gauge control rolling method for steel billet - Google Patents

Hot width-gauge control rolling method for steel billet

Info

Publication number
JPS566706A
JPS566706A JP8148179A JP8148179A JPS566706A JP S566706 A JPS566706 A JP S566706A JP 8148179 A JP8148179 A JP 8148179A JP 8148179 A JP8148179 A JP 8148179A JP S566706 A JPS566706 A JP S566706A
Authority
JP
Japan
Prior art keywords
lower flanges
rolling
specified
steel billet
hot
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
JP8148179A
Other languages
Japanese (ja)
Inventor
Norio Katsuyama
Kazuaki Ezaka
Toshio Yanai
Kenichi 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.)
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 JP8148179A priority Critical patent/JPS566706A/en
Publication of JPS566706A publication Critical patent/JPS566706A/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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To make the high rate rolling possible to prevent the generation of defects like as flaws, etc., when the hot rolling pass for the hot steel billet is carried out by the vertical rolls provided with upper and lower flanges, by specifying the outward widening gradient of upper and lower flanges and their root curvature. CONSTITUTION:The vertical rolls 1 provided with upper and lower flanges are used in carrying out the hot width-gause control rolling for the hot steel billet; hereupon, these rolls' properties are specified as follows for carrying out the width reducing rolling at a rate >=50mm./one pass. The vertical roll 1 for above stated rolling is specified as follows; the outward widening gradient theta (=b/a) of upper and lower flanges against the roll axis 3 is 0.25-0.4, and the curvature R1 at the flange root is >=40mm.. If desired, the jutting length L of upper and lower flanges is specified to 100-180mm., and the corner curvature R2 at the inside of the tip of upper and lower flanges is specified to 20mm.; hereby, the generation of flaws can be more effectively restricted.
JP8148179A 1979-06-29 1979-06-29 Hot width-gauge control rolling method for steel billet Pending JPS566706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8148179A JPS566706A (en) 1979-06-29 1979-06-29 Hot width-gauge control rolling method for steel billet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8148179A JPS566706A (en) 1979-06-29 1979-06-29 Hot width-gauge control rolling method for steel billet

Publications (1)

Publication Number Publication Date
JPS566706A true JPS566706A (en) 1981-01-23

Family

ID=13747584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8148179A Pending JPS566706A (en) 1979-06-29 1979-06-29 Hot width-gauge control rolling method for steel billet

Country Status (1)

Country Link
JP (1) JPS566706A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241151A (en) * 1975-09-29 1977-03-30 Nippon Steel Corp Method to adjust slab width

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241151A (en) * 1975-09-29 1977-03-30 Nippon Steel Corp Method to adjust slab width

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