JPS6453701A - Rolling method for parallel flange channel steel - Google Patents

Rolling method for parallel flange channel steel

Info

Publication number
JPS6453701A
JPS6453701A JP20990687A JP20990687A JPS6453701A JP S6453701 A JPS6453701 A JP S6453701A JP 20990687 A JP20990687 A JP 20990687A JP 20990687 A JP20990687 A JP 20990687A JP S6453701 A JPS6453701 A JP S6453701A
Authority
JP
Japan
Prior art keywords
finishing
rolled product
roughly
product
forming
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
JP20990687A
Other languages
Japanese (ja)
Inventor
Kikuo Ishida
Satoshi Onda
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 JP20990687A priority Critical patent/JPS6453701A/en
Publication of JPS6453701A publication Critical patent/JPS6453701A/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
    • B21B1/095—U-or channel sections

Abstract

PURPOSE:To form a product having good dimensional accuracy by forming an intermediate roughly shaped billet into a roughly rolled product and then forming it into a finishing rolled product in forming of a parallel flange channel steel. CONSTITUTION:An intermediate roughly shaped billet is formed by a rough universal mill so that the web is rolled by upper and lower horizontal rolls 54, 55 and both side faces of flanges 3 are rolled by the lower roll 55 and right and left vertical rolls 53, 56 to form a roughly rolled product. Then, a finishing universal mill forms a finishing rolled product in the same manner as that for the roughly rolled product. Thus, a parallel flange channel steel having good dimensional accuracy is formed. For dimensions of the roughly rolled product, drafts in finishing universal rolling are desired to be about 10-15% for a web thickness and to be about 13-20% for a flange thickness; for a finishing rolled product, curvature radius at a joining corner of the web and the flange 3 and a top corner part are desired to be 1-3 times as large as a curvature of a finishing product as required dimensions after forming.
JP20990687A 1987-08-24 1987-08-24 Rolling method for parallel flange channel steel Pending JPS6453701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20990687A JPS6453701A (en) 1987-08-24 1987-08-24 Rolling method for parallel flange channel steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20990687A JPS6453701A (en) 1987-08-24 1987-08-24 Rolling method for parallel flange channel steel

Publications (1)

Publication Number Publication Date
JPS6453701A true JPS6453701A (en) 1989-03-01

Family

ID=16580612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20990687A Pending JPS6453701A (en) 1987-08-24 1987-08-24 Rolling method for parallel flange channel steel

Country Status (1)

Country Link
JP (1) JPS6453701A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468762A (en) * 1977-11-11 1979-06-02 Sumitomo Metal Ind Ltd Rolling method for steel shape
JPS563122A (en) * 1979-06-20 1981-01-13 Kobe Steel Ltd Hydraulic shear press
JPS60162504A (en) * 1984-02-02 1985-08-24 Nippon Steel Corp Manufacture of section having round corner at its flange end

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468762A (en) * 1977-11-11 1979-06-02 Sumitomo Metal Ind Ltd Rolling method for steel shape
JPS563122A (en) * 1979-06-20 1981-01-13 Kobe Steel Ltd Hydraulic shear press
JPS60162504A (en) * 1984-02-02 1985-08-24 Nippon Steel Corp Manufacture of section having round corner at its flange end

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