JPS54124860A - Production of special shape steel rod by three roll type rolling mill - Google Patents

Production of special shape steel rod by three roll type rolling mill

Info

Publication number
JPS54124860A
JPS54124860A JP3350378A JP3350378A JPS54124860A JP S54124860 A JPS54124860 A JP S54124860A JP 3350378 A JP3350378 A JP 3350378A JP 3350378 A JP3350378 A JP 3350378A JP S54124860 A JPS54124860 A JP S54124860A
Authority
JP
Japan
Prior art keywords
roll type
rolling mill
type rolling
pass
finish
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
JP3350378A
Other languages
Japanese (ja)
Inventor
Chihiro Hayashi
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 JP3350378A priority Critical patent/JPS54124860A/en
Publication of JPS54124860A publication Critical patent/JPS54124860A/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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor

Landscapes

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

Abstract

PURPOSE:To produce special shape steel rod having spiral nod pattern on its surface, 3-roll type rolling mill is used in finish rolling, wherein the periphery of the roll pass is provided with a specifically engraved multilevel grooves. CONSTITUTION:The leader pass of the 3-roll type rolling mill may be curved triangle or round shape in which leader pass has 3-recesses corresponding to oval positions of finish pass. The shape only requires that the oval positions of finish round recesses are related to the leader recesses in side relief zero. Such relation is held in the 3-roll type rolling mill 2 thereby relatively easily providing the rolling process of screw-type reinforcing iron 1 having no-wall-lacking 4 at nod 3. In 2-roll type rolling mill, the higher reduction causes the larger width expansion, but in 3-roll type, the higher reduction causes little width expansion, say nearly zero.
JP3350378A 1978-03-22 1978-03-22 Production of special shape steel rod by three roll type rolling mill Pending JPS54124860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3350378A JPS54124860A (en) 1978-03-22 1978-03-22 Production of special shape steel rod by three roll type rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3350378A JPS54124860A (en) 1978-03-22 1978-03-22 Production of special shape steel rod by three roll type rolling mill

Publications (1)

Publication Number Publication Date
JPS54124860A true JPS54124860A (en) 1979-09-28

Family

ID=12388343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3350378A Pending JPS54124860A (en) 1978-03-22 1978-03-22 Production of special shape steel rod by three roll type rolling mill

Country Status (1)

Country Link
JP (1) JPS54124860A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013040550A (en) * 2011-07-19 2013-02-28 Hamanaka Nut Kk Screw-knotted reinforcement and method of manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913709A (en) * 1972-05-19 1974-02-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913709A (en) * 1972-05-19 1974-02-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013040550A (en) * 2011-07-19 2013-02-28 Hamanaka Nut Kk Screw-knotted reinforcement and method of manufacturing the same

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