FR2418035A1 - Rolling several parallel billets from one slab - avoiding high longitudinal tensile stresses in billets by converting to longitudinal compressive stresses - Google Patents

Rolling several parallel billets from one slab - avoiding high longitudinal tensile stresses in billets by converting to longitudinal compressive stresses

Info

Publication number
FR2418035A1
FR2418035A1 FR7805094A FR7805094A FR2418035A1 FR 2418035 A1 FR2418035 A1 FR 2418035A1 FR 7805094 A FR7805094 A FR 7805094A FR 7805094 A FR7805094 A FR 7805094A FR 2418035 A1 FR2418035 A1 FR 2418035A1
Authority
FR
France
Prior art keywords
billets
slab
stresses
longitudinal
tensile stresses
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
FR7805094A
Other languages
French (fr)
Other versions
FR2418035B1 (en
Inventor
J M Chumanov
V M Klimenko
G M Shulgin
V F Gubaidulin
V P Timofeev
V P Slednev
S N Ignatiev
P A Levichev
J P Lyashenko
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.)
DO POLITEKHNICHES I
Original Assignee
DO POLITEKHNICHES I
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 DO POLITEKHNICHES I filed Critical DO POLITEKHNICHES I
Priority to FR7805094A priority Critical patent/FR2418035A1/en
Publication of FR2418035A1 publication Critical patent/FR2418035A1/en
Application granted granted Critical
Publication of FR2418035B1 publication Critical patent/FR2418035B1/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
    • B21B1/08—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
    • B21B1/0815—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 from flat-rolled products, e.g. by longitudinal shearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D23/00—Machines or devices for shearing or cutting profiled stock
    • B23D23/02—Machines or devices for shearing or cutting profiled stock otherwise than in a plane perpendicular to the axis of the stock

Landscapes

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

Abstract

The slab is subjected to >=2 passes through pairs of grooved work rolls which produce several billets joined together by longitudinal webs which can subsequently be cut, e.g. by oxygen burners, to form separate billets. The rooling passes produce successively deeper lontigudinal grooves in the slab, thereby creating longitudinal tensile stresses in the slab; and the successive passes convert these stresses into longitudinal compressive stresses by controlled displacement of the slab by the ribs on the work rolls. A relative wide slab obtd. from a single track continuous casting plant can be rapidly and inexpensively converted into several billets without creating surface defects in the billets attributable to high tensile stresses occurring during rolling.
FR7805094A 1978-02-22 1978-02-22 Rolling several parallel billets from one slab - avoiding high longitudinal tensile stresses in billets by converting to longitudinal compressive stresses Granted FR2418035A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7805094A FR2418035A1 (en) 1978-02-22 1978-02-22 Rolling several parallel billets from one slab - avoiding high longitudinal tensile stresses in billets by converting to longitudinal compressive stresses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7805094A FR2418035A1 (en) 1978-02-22 1978-02-22 Rolling several parallel billets from one slab - avoiding high longitudinal tensile stresses in billets by converting to longitudinal compressive stresses

Publications (2)

Publication Number Publication Date
FR2418035A1 true FR2418035A1 (en) 1979-09-21
FR2418035B1 FR2418035B1 (en) 1980-10-24

Family

ID=9204913

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805094A Granted FR2418035A1 (en) 1978-02-22 1978-02-22 Rolling several parallel billets from one slab - avoiding high longitudinal tensile stresses in billets by converting to longitudinal compressive stresses

Country Status (1)

Country Link
FR (1) FR2418035A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE504328A (en) *
DE2612714A1 (en) * 1975-03-25 1976-10-07 Co Steel Int DEVICE FOR DIVISION OF ROLLED METAL STUDS AND FORMATION OF MULTIPLE BAR MATERIAL

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE504328A (en) *
DE2612714A1 (en) * 1975-03-25 1976-10-07 Co Steel Int DEVICE FOR DIVISION OF ROLLED METAL STUDS AND FORMATION OF MULTIPLE BAR MATERIAL

Also Published As

Publication number Publication date
FR2418035B1 (en) 1980-10-24

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Legal Events

Date Code Title Description
ST Notification of lapse