EP0322300A1 - Stützwalze aus Verbundbimetall zum Warmwalzen - Google Patents

Stützwalze aus Verbundbimetall zum Warmwalzen Download PDF

Info

Publication number
EP0322300A1
EP0322300A1 EP88403244A EP88403244A EP0322300A1 EP 0322300 A1 EP0322300 A1 EP 0322300A1 EP 88403244 A EP88403244 A EP 88403244A EP 88403244 A EP88403244 A EP 88403244A EP 0322300 A1 EP0322300 A1 EP 0322300A1
Authority
EP
European Patent Office
Prior art keywords
weight
steel
support cylinder
content
chromium
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
EP88403244A
Other languages
English (en)
French (fr)
Other versions
EP0322300B1 (de
Inventor
Jean-Claude Werquin
Jacques Bocquet
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Forcast International
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
Forcast International
Chavanne Ketin SA
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 Institut de Recherches de la Siderurgie Francaise IRSID, Forcast International, Chavanne Ketin SA filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to AT88403244T priority Critical patent/ATE94219T1/de
Publication of EP0322300A1 publication Critical patent/EP0322300A1/de
Application granted granted Critical
Publication of EP0322300B1 publication Critical patent/EP0322300B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12958—Next to Fe-base component
    • Y10T428/12965—Both containing 0.01-1.7% carbon [i.e., steel]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
    • Y10T428/12979—Containing more than 10% nonferrous elements [e.g., high alloy, stainless]

Definitions

  • the present invention relates to a bimetallic composite rolling support roller and more particularly relates to a support cylinder for quarto or sexto cage of a hot strip train finisher.
  • the support rollers generally used in these finishing cages are traditionally produced by molding or by forging, and their hardness, when measured according to the Shore method, is between 50 and 70 ShC.
  • the support cylinders can be made of forged steel with differential hardening, or of compound steel (bimetallic), these two techniques making it possible to obtain useful working thicknesses of up to 100 mm in radius.
  • the cylinders In addition, in order to obtain good flatness of the finished products, the cylinders must have a very high rigidity.
  • the core of the support cylinders is always made of steel and therefore has a very high Young's modulus.
  • the present invention therefore aims to provide a cylinder whose corrosion resistance is significantly increased, while retaining the other properties of the support cylinders, namely in particular very good resistance to rolling fatigue, and a very good rigidity resulting from the presence of a steel core.
  • the invention provides a composite bimetallic rolling mill support cylinder, in particular for a quarto or sexto cage of a hot strip train finisher, characterized in that it comprises an envelope metal consisting of a steel having a chromium content of between 13 and 17%, and a carbon content of between 0.5 and 0.8% by weight, the chromium / carbon ratio being between 20 and 25.
  • a metal envelope is produced from a steel with a very high chromium content which is resistant to corrosion and to rolling fatigue.
  • the carbon content is limited to 0.8% in order to avoid an excessive carbide phase.
  • the minimum carbon content equal to 0.5% makes it possible to obtain, by quenching, a sufficient hardness equal to approximately 70 ShC.
  • the support cylinder comprises a core metal made of low-carbon non-alloy steel having a carbon content of between 0.3 and 0.6% by weight.
  • the steel constituting the shell metal has a nickel content of between 1 and 2.5% by weight, which makes it possible to avoid the formation of ite ferrite by increasing the ⁇ domain.
  • the invention proposes a support cylinder characterized in that it is produced according to the technique of casting by centrifugation of a vertical axis.
  • Such a cylinder was used in all the cages of a finisher and the wear in the cages F5 and F6 has been significantly reduced compared to the traditional compound steel solution with a hardness of between 60 and 65 ShC and a chromium content equal to 1.8% by weight.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Laminated Bodies (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
EP88403244A 1987-12-23 1988-12-19 Stützwalze aus Verbundbimetall zum Warmwalzen Expired - Lifetime EP0322300B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88403244T ATE94219T1 (de) 1987-12-23 1988-12-19 Stuetzwalze aus verbundbimetall zum warmwalzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8718069 1987-12-23
FR8718069A FR2625225B1 (fr) 1987-12-23 1987-12-23 Cylindre d'appui composite bimetallique pour train de laminoir a chaud

Publications (2)

Publication Number Publication Date
EP0322300A1 true EP0322300A1 (de) 1989-06-28
EP0322300B1 EP0322300B1 (de) 1993-09-08

Family

ID=9358249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88403244A Expired - Lifetime EP0322300B1 (de) 1987-12-23 1988-12-19 Stützwalze aus Verbundbimetall zum Warmwalzen

Country Status (11)

Country Link
US (1) US5147733A (de)
EP (1) EP0322300B1 (de)
JP (1) JPH02502931A (de)
KR (1) KR900700646A (de)
AT (1) ATE94219T1 (de)
AU (1) AU2908089A (de)
CA (1) CA1331076C (de)
DE (1) DE3883943T2 (de)
ES (1) ES2045170T3 (de)
FR (1) FR2625225B1 (de)
WO (1) WO1989005868A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2765819A1 (fr) * 1997-07-09 1999-01-15 Werquin Jean C Procede de coulee centrifuge verticale a hydrodynamique amelioree et cylindres de laminage composites, a structure equiaxes, en comportant application

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102362222A (zh) 2009-03-27 2012-02-22 卡尔斯特里姆保健公司 引入显影剂的射线照射卤化银膜
DE102014000165B4 (de) * 2014-01-07 2016-06-09 Horst Diesing Legierung für matrixinhärent unter tribomechanischer Belastung erzeugte Manganoxidschichten für erhöhte Gebrauchszeiten von warmarbeitenden Werkzeugen aus S(HSS)-Eisenbasislegierungen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1814112A1 (de) * 1968-12-12 1970-06-25 Deutsche Edelstahlwerke Ag Verfahren zur Herstellung aufgeschweisster Walzen fuer Walzwerke zur Verformung von Metallen
DE2422629A1 (de) * 1973-05-11 1974-11-28 Hitachi Metals Ltd Grossformatige und dicke verbundmaentel hoher haerte
EP0051511A1 (de) * 1980-10-31 1982-05-12 UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE par abréviation "USINOR" Gegossene Walze zum Kaltwalzen und Verfahren zu ihrer Herstellung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU328195A1 (ru) * 1969-07-16 1972-02-02 С. В. Маркин , Я. Б. Гуревич ПАТЕНТНО-КХНйЖНАПБИБЛИОТЕКА
JPS52107222A (en) * 1976-03-05 1977-09-08 Kubota Ltd Steel carriage roller
JPS5938068B2 (ja) * 1977-02-28 1984-09-13 日本ステンレス株式会社 耐摩耗性．耐食性．耐割れ性のすぐれた熱延テ−ブルロ−ラ−用複合ロ−ルの製造方法
JPS5976696A (ja) * 1982-10-26 1984-05-01 Nittetsu Hard Kk 耐摩耗性・耐熱亀裂性を有する巾圧延機用ロ−ル

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1814112A1 (de) * 1968-12-12 1970-06-25 Deutsche Edelstahlwerke Ag Verfahren zur Herstellung aufgeschweisster Walzen fuer Walzwerke zur Verformung von Metallen
DE2422629A1 (de) * 1973-05-11 1974-11-28 Hitachi Metals Ltd Grossformatige und dicke verbundmaentel hoher haerte
EP0051511A1 (de) * 1980-10-31 1982-05-12 UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE par abréviation "USINOR" Gegossene Walze zum Kaltwalzen und Verfahren zu ihrer Herstellung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 1, no. 166, 24 décembre 1977, page 3687 C 77; & JP-A-52 107 222 (KUBOTA TEKKO K.K.) 09-08-1977 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2765819A1 (fr) * 1997-07-09 1999-01-15 Werquin Jean C Procede de coulee centrifuge verticale a hydrodynamique amelioree et cylindres de laminage composites, a structure equiaxes, en comportant application

Also Published As

Publication number Publication date
JPH02502931A (ja) 1990-09-13
WO1989005868A1 (fr) 1989-06-29
US5147733A (en) 1992-09-15
ATE94219T1 (de) 1993-09-15
DE3883943T2 (de) 1994-03-24
AU2908089A (en) 1989-07-19
ES2045170T3 (es) 1994-01-16
CA1331076C (fr) 1994-08-02
DE3883943D1 (de) 1993-10-14
EP0322300B1 (de) 1993-09-08
FR2625225B1 (fr) 1990-06-08
KR900700646A (ko) 1990-08-16
FR2625225A1 (fr) 1989-06-30

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