EP0184568B1 - Verfahren zur Markierung der Oberfläche einer Walze - Google Patents

Verfahren zur Markierung der Oberfläche einer Walze Download PDF

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Publication number
EP0184568B1
EP0184568B1 EP85870147A EP85870147A EP0184568B1 EP 0184568 B1 EP0184568 B1 EP 0184568B1 EP 85870147 A EP85870147 A EP 85870147A EP 85870147 A EP85870147 A EP 85870147A EP 0184568 B1 EP0184568 B1 EP 0184568B1
Authority
EP
European Patent Office
Prior art keywords
coating
roll
process according
marking process
cylinder
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.)
Expired
Application number
EP85870147A
Other languages
English (en)
French (fr)
Other versions
EP0184568A1 (de
Inventor
Guy Monfort
Jean Crahay
Adolphe Bragard
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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
Priority claimed from BE6/48029A external-priority patent/BE901055A/fr
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Priority to AT85870147T priority Critical patent/ATE47675T1/de
Publication of EP0184568A1 publication Critical patent/EP0184568A1/de
Application granted granted Critical
Publication of EP0184568B1 publication Critical patent/EP0184568B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • B21B27/005—Rolls with a roughened or textured surface; Methods for making same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/10—Roughness of roll surface

Definitions

  • the present invention relates to a method of surface marking of a rolling mill cylinder. It relates more particularly to a method of marking cold rolling mill rolls which must impart controlled roughness to a steel sheet.
  • the cylinders After the roughness has worn off, the cylinders must be reconditioned to restore their initial surface condition. A used cylinder must be removed from the rolling mill, rectified, re-marked, then reassembled in the rolling mill. These operations, as well as the manipulations and adjustments that they require, entail significant costs which have repercussions on the cost of the cylinder. It is therefore advantageous to space these repackages, that is to say to reduce the rate of wear of the roughness.
  • the present invention relates to a method for achieving this objective.
  • the surface marking process of a rolling mill cylinder which is the subject of the present invention, in which a coating consisting at least partly of a metallic substance is applied to the surface of said cylinder and treated said surface by means of an intermittent laser beam, is characterized in that said coating and the underlying surface of the cylinder are locally melted in the impact zone of the laser beam, in what is formed in this zone a droplet of a molten alloy, consisting of the coating and the underlying metal of said cylinder, in that the molten alloy is discharged towards the periphery of said impact zone, so that it is thus formed a microcrater surrounded by an alloy bead and in that the bead is rapidly solidified.
  • said operations are repeated in a plurality of impact zones distributed in a predetermined pattern on the surface of said cylinder.
  • a metallic coating composed of nickel, chromium, cobalt or an alloy of at least two of these metals is applied to the surface of said cylinder.
  • a coating is applied to the surface of said cylinder comprising at least one metal and at least one metal oxide.
  • the metal oxide can, according to the invention, come from a metal different from that which enters into the composition of said coating.
  • the presence of nickel oxide, associated with nickel causes an increase in the amount of energy of the laser beam absorbed by the surface; this results on the one hand, an increase in the depth of melting and therefore an increased roughness depth, and on the other hand a better alloy of the metal of the cylinder with nickel and a higher hardness of the solidified bead.
  • a coating or a powder containing at least one hardening component such as a carbide or a nitride and / or at least one component, is applied to the surface of said cylinder. capable of reacting with at least one component of the material of said cylinder to form said hardening component.
  • said coating is applied by any method known per se, appropriate to the coating material used.
  • any method known per se appropriate to the coating material used.
  • a powder can also be deposited by an appropriate method.
  • the coating applied to the surface of said cylinder advantageously consists of a substance capable - or containing at least one constituent capable - of ally with the locally molten material of the cylinder and / or react with at least one of the constituents of this material.
  • the hardening effect resulting from the aforementioned alloy or reaction is located essentially in the beads which surround the micro-craters, that is to say precisely in the regions which serve to print the roughness in the sheet rolled with this cylinder.
  • This implementation therefore ensures maximum efficiency of the process of the invention.
  • the method of the invention can be illustrated, by way of example, by its application to a rolling mill cylinder of steel of conventional composition.
  • an electrolytic layer was deposited on this cylinder with a layer of cobalt of 5 ⁇ m then a layer of chromium of 1 ⁇ m.
  • the surface thus coated was then treated, using a laser with a power of 1 kW, so as to form a roughness Ra of 4 to 5 ⁇ m.
  • the craters formed were well separated.
  • craters were obtained having a bead composed of an alloy containing a high proportion of cobalt, and whose height is of the order of 10 to 15 m.
  • the figure represents a section of one of these beads, photographed with a magnification of 2000 times with a scanning electron microscope.
  • the coating resin is on the right, the bead of highly alloyed metal is in the center and the metal of the cylinder on the left (this one was prepared by etching for the micrographic examination).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Laser Beam Processing (AREA)

Claims (7)

1. Methode zur Oberflächenmarkierung einer Walzwerkwalze, wobei man auf besagte Walzenoberfläche eine mindestens teilweise aus einer metallischen Substanz bestehende Beschichtung aufbringt und besagte Oberfläche mit einem intermittierenden Laserstrahlenbündel behandelt, dadurch gekennzeichnet, daß man die besagte Beschichtung und die darunterliegende Walzenoberfläche in der Auftreffzone des Laserstrahlenbündels lokal aufschmilzt, daß man in dieser Zone ein Tröpfchen einer aus der Beschichtung und dem darunterliegenden Metall besagter Walze bestehenden, schmelzflüssigen Legierung bildet, daß man die schmelzflüssige Legierung zum Umfang der besagten Auftreffzone hin zurückdrängt, daß man so einen von einem Legierungswulst umgebenen Mikrokrater bildet und daß man besagten Wulst rasch verfestigt.
2. Methode zur Markierung nach Anspruch 1, dadurch gekennzeichnet, daß man besagte Schritte in mehreren, gemäß einem vorbestimmten Muster auf der Oberfläche besagter Walze verteilten Auftreffzonen wiederholt.
3. Methode zur Markierung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß man eine aus Nickel, Chrom, Kobalt oder einer Legierung mindestens zweier dieser Metalle zusammengesetzte metallische Substanz abscheidet.
4. Methode zur Markierung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß man eine mindestens ein Metalloxid enthaltende Beschichtung auf die Oberfläche besagter Walze aufbringt.
5. Methode zur Markierung nach Anspruch 4, dadurch gekennzeichnet, daß man ein Oxid eines Metalls verwendet, das ebenfalls in der Beschichtung vorhanden ist.
6. Methode zur Markierung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß besagte Beschichtung mindestens eine härtende Komponente, wie ein Karbid und/oder ein Nitrid und/oder mindestens eine mit mindestens einem Bestandteil des Materials besagter Walze zur Bildung besagter härtenden Komponente reaktionsfähige Komponente, enthält.
7. Methode zur Markierung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß besagte Beschichtung mehrere nacheinander abgeschiedene Schichten enthält.
EP85870147A 1984-11-14 1985-11-04 Verfahren zur Markierung der Oberfläche einer Walze Expired EP0184568B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85870147T ATE47675T1 (de) 1984-11-14 1985-11-04 Verfahren zur markierung der oberflaeche einer walze.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6/48029A BE901055A (fr) 1984-11-14 1984-11-14 Procede de traitement superficiel d'un cylindre de laminoir.
BE6048029 1984-11-14

Publications (2)

Publication Number Publication Date
EP0184568A1 EP0184568A1 (de) 1986-06-11
EP0184568B1 true EP0184568B1 (de) 1989-11-02

Family

ID=3874965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85870147A Expired EP0184568B1 (de) 1984-11-14 1985-11-04 Verfahren zur Markierung der Oberfläche einer Walze

Country Status (4)

Country Link
US (1) US4850089A (de)
EP (1) EP0184568B1 (de)
JP (1) JPS61169104A (de)
AT (1) ATE47675T1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022123890B3 (de) 2022-09-19 2023-11-16 Thyssenkrupp Steel Europe Ag Lasertexturierte Arbeitswalze für den Einsatz in einem Kaltwalzwerk, Verfahren zum Herstellen einer lasertexturierten Arbeitswalze für den Einsatz in einem Kaltwalzwerk und Kaltwalzwerk
DE102022123888A1 (de) 2022-09-19 2024-03-21 Thyssenkrupp Steel Europe Ag Lasertexturierte Arbeitswalze für den Einsatz im Kaltwalzwerk und Verfahren zum Herstellen einer lasertexturierten Arbeitswalze für den Einsatz im Kaltwalzwerk und Kaltwalzwerk
DE102023105688B3 (de) 2023-03-08 2024-06-06 Thyssenkrupp Steel Europe Ag Rolle zur Führung von Bändern, Verfahren zum Herstellen einer Rolle und entsprechende Verwendung
DE102022132638A1 (de) 2022-12-08 2024-06-13 Thyssenkrupp Steel Europe Ag Deterministisch texturierte Arbeitswalze für den Einsatz in einem Kaltwalzwerk, Verfahren zum Herstellen einer deterministisch texturierten Arbeitswalze für den Einsatz in einem Kaltwalzwerk und Kaltwalzwerk
EP4616969A1 (de) 2024-03-11 2025-09-17 ThyssenKrupp Steel Europe AG Stahlflachprodukt mit hervorragenden haftungseigenschaften sowie verfahren zu seiner herstellung
EP4640327A1 (de) 2024-04-26 2025-10-29 ThyssenKrupp Steel Europe AG Arbeitswalze für den einsatz in einem kaltwalzwerk und verfahren zum kaltwalzen eines flachmaterials, sowie ein kaltwalzwerk

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1287245C (en) * 1985-12-20 1991-08-06 Union Carbide Corporation Wear-resistant laser-engraved metallic carbide surfaces for friction rolls for working elongate members, methods for producing same andmethods for working elongate members
US4841611A (en) * 1986-07-14 1989-06-27 Kawasaki Steel Corporation Work roll with dulled surface having geometrically patterned uneven dulled sections for temper rolling
LU86753A1 (fr) * 1987-01-30 1988-08-23 Centre Rech Metallurgique Procede pour le traitement superficiel d'un cylindre de laminoir
JPH01262006A (ja) * 1988-04-14 1989-10-18 Sumitomo Metal Ind Ltd 圧延用クロムめっきロールの製造方法
US5025547A (en) * 1990-05-07 1991-06-25 Aluminum Company Of America Method of providing textures on material by rolling
US6436191B1 (en) * 1997-12-01 2002-08-20 Eastman Kodak Company Corona discharge treatment roller and surface finishing process
US6423259B1 (en) * 1997-12-01 2002-07-23 Eastman Kodak Company Process for finishing the surface of a corona discharge treatment roller
ITTO980460A1 (it) 1998-05-29 1999-11-29 Brown & Sharpe Dea Spa Gruppo di collegamento di una testa di misura ad un robot di misura
US6290632B1 (en) * 1998-12-10 2001-09-18 Alcoa Inc. Ultrafine matte finish roll for treatment for sheet products and method of production
US6344100B1 (en) 1999-09-29 2002-02-05 Robert A. Hipskind Method of resurfacing a roll
DE60334826D1 (de) * 2002-09-30 2010-12-16 Welding Inst Abington Verfahren zur werkstückstrukturmodifikation
US20070141964A1 (en) * 2005-12-19 2007-06-21 Dan Zimmerman Work rolls surface textured by media blasting and controlled surface modification
US20070137037A1 (en) * 2005-12-19 2007-06-21 Noble Craig A Controlled surface modification as an intermediate step in the surface texturing of work rolls
US20070137038A1 (en) * 2005-12-19 2007-06-21 Barr Rodney S Work rolls having an engineered surface texture prepared by controlled surface modification after chrome coating
JP6085391B2 (ja) 2013-03-15 2017-02-22 ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． ダル光沢仕上げの圧延肌
JP6657837B2 (ja) * 2015-11-19 2020-03-04 日本製鉄株式会社 方向性電磁鋼板およびその製造方法

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US281596A (en) * 1883-07-17 Self aotj willis f
US3177558A (en) * 1962-08-20 1965-04-13 Du Pont Metal articles having smooth hemispheroidal indentations
FR2086561A5 (en) * 1970-09-14 1971-12-31 Marichal Ketin Cie High chromium steel - for rolling mill roll surfaces
US4015100A (en) * 1974-01-07 1977-03-29 Avco Everett Research Laboratory, Inc. Surface modification
BE870609A (fr) * 1977-09-22 1979-01-15 Centre Rech Metallurgique Procede et dispositif pour ameliorer les proprietes des toles minces en acier
DE2749456A1 (de) * 1977-11-04 1979-05-10 Steigerwald Strahltech Verfahren zum haerten eines oberflaechenbereiches eines werkstuecks
US4167662A (en) * 1978-03-27 1979-09-11 National Research Development Corporation Methods and apparatus for cutting and welding
JPS5825557B2 (ja) * 1978-06-05 1983-05-27 新日本製鐵株式会社 ダルロ−ルの粗面化装置
JPS5830382B2 (ja) * 1979-10-26 1983-06-29 株式会社クボタ 高クロムワ−クロ−ル
FR2469221A1 (fr) * 1979-11-13 1981-05-22 Usinor Cylindre de laminoir pour train a chaud
FR2476524A1 (fr) * 1980-02-27 1981-08-28 Sumitomo Metal Ind Procede pour travailler la surface d'un cylindre de laminage a froid
US4470802A (en) * 1982-03-31 1984-09-11 Nippon Steel Corporation Highly buildup-resistant hearth roll for conveying a steel strip through a continuous annealing furnace and a method therefor
JPH0657873B2 (ja) * 1983-06-18 1994-08-03 新日本製鐵株式▲会▼社 熱処理炉用ロ−ル

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022123890B3 (de) 2022-09-19 2023-11-16 Thyssenkrupp Steel Europe Ag Lasertexturierte Arbeitswalze für den Einsatz in einem Kaltwalzwerk, Verfahren zum Herstellen einer lasertexturierten Arbeitswalze für den Einsatz in einem Kaltwalzwerk und Kaltwalzwerk
DE102022123888A1 (de) 2022-09-19 2024-03-21 Thyssenkrupp Steel Europe Ag Lasertexturierte Arbeitswalze für den Einsatz im Kaltwalzwerk und Verfahren zum Herstellen einer lasertexturierten Arbeitswalze für den Einsatz im Kaltwalzwerk und Kaltwalzwerk
WO2024061671A1 (de) 2022-09-19 2024-03-28 Thyssenkrupp Steel Europe Ag Lasertexturierte arbeitswalze für den einsatz im kaltwalzwerk und verfahren zum herstellen einer lasertexturierten arbeitswalze für den einsatz im kaltwalzwerk und kaltwalzwerk
DE102022132638A1 (de) 2022-12-08 2024-06-13 Thyssenkrupp Steel Europe Ag Deterministisch texturierte Arbeitswalze für den Einsatz in einem Kaltwalzwerk, Verfahren zum Herstellen einer deterministisch texturierten Arbeitswalze für den Einsatz in einem Kaltwalzwerk und Kaltwalzwerk
WO2024120964A1 (de) 2022-12-08 2024-06-13 Thyssenkrupp Steel Europe Ag Deterministisch texturierte arbeitswalze für den einsatz in einem kaltwalzwerk, verfahren zum herstellen einer deterministisch texturierten arbeitswalze für den einsatz in einem kaltwalzwerk und kaltwalzwerk
DE102023105688B3 (de) 2023-03-08 2024-06-06 Thyssenkrupp Steel Europe Ag Rolle zur Führung von Bändern, Verfahren zum Herstellen einer Rolle und entsprechende Verwendung
EP4616969A1 (de) 2024-03-11 2025-09-17 ThyssenKrupp Steel Europe AG Stahlflachprodukt mit hervorragenden haftungseigenschaften sowie verfahren zu seiner herstellung
EP4640327A1 (de) 2024-04-26 2025-10-29 ThyssenKrupp Steel Europe AG Arbeitswalze für den einsatz in einem kaltwalzwerk und verfahren zum kaltwalzen eines flachmaterials, sowie ein kaltwalzwerk

Also Published As

Publication number Publication date
EP0184568A1 (de) 1986-06-11
ATE47675T1 (de) 1989-11-15
US4850089A (en) 1989-07-25
JPS61169104A (ja) 1986-07-30

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