FR2312307A1 - Rolling steel bars with small number of passes - using row of stands, each contg. four rolls forming one rolling groove - Google Patents

Rolling steel bars with small number of passes - using row of stands, each contg. four rolls forming one rolling groove

Info

Publication number
FR2312307A1
FR2312307A1 FR7517028A FR7517028A FR2312307A1 FR 2312307 A1 FR2312307 A1 FR 2312307A1 FR 7517028 A FR7517028 A FR 7517028A FR 7517028 A FR7517028 A FR 7517028A FR 2312307 A1 FR2312307 A1 FR 2312307A1
Authority
FR
France
Prior art keywords
redn
passes
billet
rolling
rolls
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
FR7517028A
Other languages
French (fr)
Other versions
FR2312307B1 (en
Inventor
Kanichi Kishikawa
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to FR7517028A priority Critical patent/FR2312307A1/en
Priority to DE19752524224 priority patent/DE2524224A1/en
Priority to LU72653A priority patent/LU72653A1/xx
Publication of FR2312307A1 publication Critical patent/FR2312307A1/en
Application granted granted Critical
Publication of FR2312307B1 publication Critical patent/FR2312307B1/fr
Granted 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
    • B21B1/18—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 in a continuous process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

Rolling steel bars starting from a square or four-edged billet, comprises the use of a roll stand contg. four rolls where the four roll peripheries form one roll gap through which the billet passes for the simultaneous redn. of the four corner regions of the billet along the diagonals to form a square section with sides joining the middle of adjacent sides of the original billet; this redn. is repeated several times to obtain the final cross section, using roll stands which contain four rolls possessing profiled peripheries which form the rolling gaps. The average redn. in the cross section of the workpiece is 20-50%, and either two or all four rolls in each stand may be driven. Higher yields with higher average redn. are obtd. in a smaller number of passes, producing high quality bar steel with a good surface.
FR7517028A 1975-05-30 1975-05-30 Rolling steel bars with small number of passes - using row of stands, each contg. four rolls forming one rolling groove Granted FR2312307A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7517028A FR2312307A1 (en) 1975-05-30 1975-05-30 Rolling steel bars with small number of passes - using row of stands, each contg. four rolls forming one rolling groove
DE19752524224 DE2524224A1 (en) 1975-05-30 1975-05-31 METHOD AND DEVICE FOR ROLLING BAR STEEL
LU72653A LU72653A1 (en) 1975-05-30 1975-06-05

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7517028A FR2312307A1 (en) 1975-05-30 1975-05-30 Rolling steel bars with small number of passes - using row of stands, each contg. four rolls forming one rolling groove
DE19752524224 DE2524224A1 (en) 1975-05-30 1975-05-31 METHOD AND DEVICE FOR ROLLING BAR STEEL
LU72653A LU72653A1 (en) 1975-05-30 1975-06-05

Publications (2)

Publication Number Publication Date
FR2312307A1 true FR2312307A1 (en) 1976-12-24
FR2312307B1 FR2312307B1 (en) 1977-12-02

Family

ID=27186399

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7517028A Granted FR2312307A1 (en) 1975-05-30 1975-05-30 Rolling steel bars with small number of passes - using row of stands, each contg. four rolls forming one rolling groove

Country Status (3)

Country Link
DE (1) DE2524224A1 (en)
FR (1) FR2312307A1 (en)
LU (1) LU72653A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819567A1 (en) * 1978-05-05 1979-11-15 Suedwestfalen Ag Stahlwerke ROLLING MILL FOR ROLLING BAR-SHAPED METALLIC GOODS
US5673584A (en) * 1991-06-21 1997-10-07 Sumitomo Metal Industries, Ltd. Method of and an apparatus for producing wire
US6085565A (en) * 1995-11-30 2000-07-11 Daido Steel Co., Ltd. Eight-roller type rolling mill and method of rolling using the mill

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264850B1 (en) * 1986-10-20 1992-03-25 Sms Schloemann-Siemag Aktiengesellschaft Arrangement for rolling profiled bars within small tolerances
IT1290131B1 (en) * 1997-03-20 1998-10-19 Pomini Spa LAMINATION TRAIN AND RELATIVE LAMINATION PROCESS WITH IMPROVED YIELD

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE365075C (en) * 1921-01-08 1922-12-07 Heinrich Stueting Process for rolling out solid material in the universal rolling mill
FR1445584A (en) * 1965-06-14 1966-07-15 Schwermaschb E Thalmann Veb Rolling mill stand
US3754425A (en) * 1970-07-17 1973-08-28 Kocks F Rolling mills

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE365075C (en) * 1921-01-08 1922-12-07 Heinrich Stueting Process for rolling out solid material in the universal rolling mill
FR1445584A (en) * 1965-06-14 1966-07-15 Schwermaschb E Thalmann Veb Rolling mill stand
US3754425A (en) * 1970-07-17 1973-08-28 Kocks F Rolling mills

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819567A1 (en) * 1978-05-05 1979-11-15 Suedwestfalen Ag Stahlwerke ROLLING MILL FOR ROLLING BAR-SHAPED METALLIC GOODS
US5673584A (en) * 1991-06-21 1997-10-07 Sumitomo Metal Industries, Ltd. Method of and an apparatus for producing wire
US6085565A (en) * 1995-11-30 2000-07-11 Daido Steel Co., Ltd. Eight-roller type rolling mill and method of rolling using the mill

Also Published As

Publication number Publication date
FR2312307B1 (en) 1977-12-02
LU72653A1 (en) 1975-10-08
DE2524224A1 (en) 1976-12-16

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Legal Events

Date Code Title Description
ST Notification of lapse