JPS57168701A - Deciding method for web waving in rolling of h-steel - Google Patents

Deciding method for web waving in rolling of h-steel

Info

Publication number
JPS57168701A
JPS57168701A JP56051729A JP5172981A JPS57168701A JP S57168701 A JPS57168701 A JP S57168701A JP 56051729 A JP56051729 A JP 56051729A JP 5172981 A JP5172981 A JP 5172981A JP S57168701 A JPS57168701 A JP S57168701A
Authority
JP
Japan
Prior art keywords
web
rolling
pass
stress
rolling direction
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
JP56051729A
Other languages
Japanese (ja)
Inventor
Hiroyuki Hayashi
Toru Sasaki
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 Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP56051729A priority Critical patent/JPS57168701A/en
Publication of JPS57168701A publication Critical patent/JPS57168701A/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
    • 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

Landscapes

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

Abstract

PURPOSE:To decide the presence or absence of web waving beforehand in one pass of screw down in universal rolling by estimating the compressive internal stress in the rolling direction generated during rolling and exerted upon the web, the critical buckling stress in the rolling direction dependent upon the geometrical shape of the web after the pass and the yield stress corresponding to the web temp. after the pass. CONSTITUTION:In universal rolling of H-steel, the internal stress sigma1 in the rolling direction generated in a web 3A by the unequality in the draft distribution between the web 3A and flanges 3B, the critical buckling stress sigma2 in the rolling direction determined by the size of the web 3A after the pass and the yield stress sigma3 corresponding to the temp. of the web 3A after the pass are determined. It is decided that web waving takes place when the magnitude relations thereof are sigma2<sigma1<sigma3.
JP56051729A 1981-04-08 1981-04-08 Deciding method for web waving in rolling of h-steel Pending JPS57168701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56051729A JPS57168701A (en) 1981-04-08 1981-04-08 Deciding method for web waving in rolling of h-steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56051729A JPS57168701A (en) 1981-04-08 1981-04-08 Deciding method for web waving in rolling of h-steel

Publications (1)

Publication Number Publication Date
JPS57168701A true JPS57168701A (en) 1982-10-18

Family

ID=12894973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56051729A Pending JPS57168701A (en) 1981-04-08 1981-04-08 Deciding method for web waving in rolling of h-steel

Country Status (1)

Country Link
JP (1) JPS57168701A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63281701A (en) * 1987-05-14 1988-11-18 Kawasaki Steel Corp Manufacture of h-shape steel
JP2008196346A (en) * 2007-02-09 2008-08-28 Mazda Motor Corp Sliding member and its manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63281701A (en) * 1987-05-14 1988-11-18 Kawasaki Steel Corp Manufacture of h-shape steel
JP2008196346A (en) * 2007-02-09 2008-08-28 Mazda Motor Corp Sliding member and its manufacturing method

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