JPS57193201A - Production of h-steel - Google Patents

Production of h-steel

Info

Publication number
JPS57193201A
JPS57193201A JP7726681A JP7726681A JPS57193201A JP S57193201 A JPS57193201 A JP S57193201A JP 7726681 A JP7726681 A JP 7726681A JP 7726681 A JP7726681 A JP 7726681A JP S57193201 A JPS57193201 A JP S57193201A
Authority
JP
Japan
Prior art keywords
mills
slab
slits
theta
rolling
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.)
Granted
Application number
JP7726681A
Other languages
Japanese (ja)
Other versions
JPS5919766B2 (en
Inventor
Yoshiaki Kusaba
Shotaro Hamazaki
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 JP56077266A priority Critical patent/JPS5919766B2/en
Publication of JPS57193201A publication Critical patent/JPS57193201A/en
Publication of JPS5919766B2 publication Critical patent/JPS5919766B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/0815—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 structural sections, i.e. work of special cross-section, e.g. angle steel from flat-rolled products, e.g. by longitudinal shearing

Landscapes

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

Abstract

PURPOSE:To improve the yield and efficiency of rolling and quality in a process for rolling H-steel directly from a continuously cast slab by force opening the slits formed by the broadside roughing of the slab with universal mills. CONSTITUTION:A flat slab obtained by continuous casting is heated and roughly rolled by box calibersI, II... having crest parts 1 of a prescribed height (h) and a vertex theta wherein the theta is approximately the same and the (h) increases gradually with duplex type reversible roughing mills by placing the width direction of the slab on top and bottom. The depth S of the slits to be formed to the slab is set approximately half the flange width H of the product. Such rough shape steel is guided to >=1 set of intermediate UR mill groups consisting of universal (UR) mills and duplex type caliber edging (E) mills, where it is subjected plural passes of forward and backward rollings. The horizotal and vertical rolls of the UR mills have >=5 deg. angles phi and the web arts of the slabs are opened by the former and the slits are force opened by the latter. After the inner sides of the flange parts of the slab contact with the side surfaces of the horizontal rolls, the leading ends of the flange parts are edged by the E mills and the slab is rolled for one pass with the UR mills.
JP56077266A 1981-05-21 1981-05-21 Manufacturing method of H-beam steel Expired JPS5919766B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56077266A JPS5919766B2 (en) 1981-05-21 1981-05-21 Manufacturing method of H-beam steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56077266A JPS5919766B2 (en) 1981-05-21 1981-05-21 Manufacturing method of H-beam steel

Publications (2)

Publication Number Publication Date
JPS57193201A true JPS57193201A (en) 1982-11-27
JPS5919766B2 JPS5919766B2 (en) 1984-05-08

Family

ID=13629034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56077266A Expired JPS5919766B2 (en) 1981-05-21 1981-05-21 Manufacturing method of H-beam steel

Country Status (1)

Country Link
JP (1) JPS5919766B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016148031A1 (en) * 2015-03-19 2016-09-22 新日鐵住金株式会社 H-shaped steel production method
EP3388160A4 (en) * 2016-01-07 2019-10-09 Nippon Steel Corporation Method for producing steel h-beam, and rolling mill
US11364524B2 (en) * 2016-08-10 2022-06-21 Nippon Steel Corporation Method for producing H-shaped steel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5220958A (en) * 1975-08-11 1977-02-17 Nippon Steel Corp Method of manufacturing angle steel
JPS538348A (en) * 1976-07-12 1978-01-25 Nippon Steel Corp Steel sections manufacturing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5220958A (en) * 1975-08-11 1977-02-17 Nippon Steel Corp Method of manufacturing angle steel
JPS538348A (en) * 1976-07-12 1978-01-25 Nippon Steel Corp Steel sections manufacturing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016148031A1 (en) * 2015-03-19 2016-09-22 新日鐵住金株式会社 H-shaped steel production method
CN107427873A (en) * 2015-03-19 2017-12-01 新日铁住金株式会社 The manufacture method of H profile steel
JPWO2016148031A1 (en) * 2015-03-19 2018-01-18 新日鐵住金株式会社 Manufacturing method of H-section steel
CN107427873B (en) * 2015-03-19 2019-09-13 日本制铁株式会社 The manufacturing method of H profile steel
US10710130B2 (en) 2015-03-19 2020-07-14 Nippon Steel Corporation Method for producing H-shaped steel
EP3388160A4 (en) * 2016-01-07 2019-10-09 Nippon Steel Corporation Method for producing steel h-beam, and rolling mill
US11364524B2 (en) * 2016-08-10 2022-06-21 Nippon Steel Corporation Method for producing H-shaped steel

Also Published As

Publication number Publication date
JPS5919766B2 (en) 1984-05-08

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