JPS6483302A - Manufacture of h-shape steel - Google Patents

Manufacture of h-shape steel

Info

Publication number
JPS6483302A
JPS6483302A JP23966787A JP23966787A JPS6483302A JP S6483302 A JPS6483302 A JP S6483302A JP 23966787 A JP23966787 A JP 23966787A JP 23966787 A JP23966787 A JP 23966787A JP S6483302 A JPS6483302 A JP S6483302A
Authority
JP
Japan
Prior art keywords
shape steel
width
rolling
steel billet
shape
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
JP23966787A
Other languages
Japanese (ja)
Other versions
JPH0675725B2 (en
Inventor
Shuji Noguchi
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 JP62239667A priority Critical patent/JPH0675725B2/en
Publication of JPS6483302A publication Critical patent/JPS6483302A/en
Publication of JPH0675725B2 publication Critical patent/JPH0675725B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/08Metal-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
    • B21B1/088H- or I-sections

Abstract

PURPOSE:To manufacture H-shape steel of a wide width flange with good efficiency without causing the contraction of the flange width by executing the rolling for thickness reduction after forming the flat steel billet having the specified dimension against the product dimension of the product H-shape steel in the rough shape steel billet of a dog bone sectional shape after its heating. CONSTITUTION:The thickness T and width W of the flat steel billet of a blank stock is decided by the dimension of the product H-shape steel 18 to be manufactured. Namely the thickness T is taken in the dimension satisfying an inequality 1 and the width W satisfying an inequality 2. This flat steel billet is formed in the rough shape steel billet 17 of the dog bone sectional shape having the flange width BF1 and web inner width HF1 satisfying equation 3 and equation 4 by rolling with a breakdown mill, after its heating. This rough shape steel billet 17 is subjected to thickness reduction rolling so as to satisfy an inequality 5 by the ratio of a flange part rolling reduction rate PSIf to the web part rolling reduction rate PSIw by an universal mill. The product H-shape steel 18 of the specified dimensional shape is obtd. by executing finish rolling by a finishing universal mill in succession thereafter.
JP62239667A 1987-09-24 1987-09-24 Method for manufacturing wide H-section steel Expired - Lifetime JPH0675725B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62239667A JPH0675725B2 (en) 1987-09-24 1987-09-24 Method for manufacturing wide H-section steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62239667A JPH0675725B2 (en) 1987-09-24 1987-09-24 Method for manufacturing wide H-section steel

Publications (2)

Publication Number Publication Date
JPS6483302A true JPS6483302A (en) 1989-03-29
JPH0675725B2 JPH0675725B2 (en) 1994-09-28

Family

ID=17048114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62239667A Expired - Lifetime JPH0675725B2 (en) 1987-09-24 1987-09-24 Method for manufacturing wide H-section steel

Country Status (1)

Country Link
JP (1) JPH0675725B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU700041B2 (en) * 1995-02-02 1998-12-17 Isg Technologies Inc. Method for producing flanged structural products directly from slabs
JP2002035802A (en) * 2000-07-21 2002-02-05 Sumitomo Metal Ind Ltd Method for rolling h-section steel
JP2004009134A (en) * 2002-06-11 2004-01-15 Jfe Steel Kk Method for rolling wide flange shape having narrow flange width

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240631A (en) * 1975-09-25 1977-03-29 Toyoda Automatic Loom Works Pressure roller for drawing yarn in spinning machines
JPS5918124A (en) * 1982-07-16 1984-01-30 Mitsui Toatsu Chem Inc Light-transmitting fiber
JPS5919766A (en) * 1982-07-26 1984-02-01 Mitsubishi Motors Corp Oil pressure controlling apparatus
JPS6141641A (en) * 1984-08-02 1986-02-28 Ford Motor Co Head light-winker unit for automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240631A (en) * 1975-09-25 1977-03-29 Toyoda Automatic Loom Works Pressure roller for drawing yarn in spinning machines
JPS5918124A (en) * 1982-07-16 1984-01-30 Mitsui Toatsu Chem Inc Light-transmitting fiber
JPS5919766A (en) * 1982-07-26 1984-02-01 Mitsubishi Motors Corp Oil pressure controlling apparatus
JPS6141641A (en) * 1984-08-02 1986-02-28 Ford Motor Co Head light-winker unit for automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU700041B2 (en) * 1995-02-02 1998-12-17 Isg Technologies Inc. Method for producing flanged structural products directly from slabs
JP2002035802A (en) * 2000-07-21 2002-02-05 Sumitomo Metal Ind Ltd Method for rolling h-section steel
JP2004009134A (en) * 2002-06-11 2004-01-15 Jfe Steel Kk Method for rolling wide flange shape having narrow flange width

Also Published As

Publication number Publication date
JPH0675725B2 (en) 1994-09-28

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