EP1025275A1 - Verfahren zum einstellen der zusammensetzung eines metallischen erzeugnisses - Google Patents

Verfahren zum einstellen der zusammensetzung eines metallischen erzeugnisses

Info

Publication number
EP1025275A1
EP1025275A1 EP98948630A EP98948630A EP1025275A1 EP 1025275 A1 EP1025275 A1 EP 1025275A1 EP 98948630 A EP98948630 A EP 98948630A EP 98948630 A EP98948630 A EP 98948630A EP 1025275 A1 EP1025275 A1 EP 1025275A1
Authority
EP
European Patent Office
Prior art keywords
strip
substance
composition
sheet
vacuum chamber
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
EP98948630A
Other languages
English (en)
French (fr)
Other versions
EP1025275B1 (de
EP1025275B2 (de
Inventor
Pierre Van Den Brande
Alain Weymeersch
Fabrizio Maseri
Philippe Harlet
Lucien Renard
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.)
ArcelorMittal Liege Upstream SA
Original Assignee
Cockerill Sambre 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8228838&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1025275(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cockerill Sambre SA filed Critical Cockerill Sambre SA
Priority to EP98948630A priority Critical patent/EP1025275B2/de
Publication of EP1025275A1 publication Critical patent/EP1025275A1/de
Publication of EP1025275B1 publication Critical patent/EP1025275B1/de
Application granted granted Critical
Publication of EP1025275B2 publication Critical patent/EP1025275B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

Definitions

  • the present invention relates to a process for the composition of a metal product by the addition of at least one substance to this product.
  • composition of a steel is always isotropic since the composition is carried out in the liquid phase of the metal. It is therefore impossible to produce "composite" steels with a ductile core and hard skin.
  • the composition of the steels after the solidification step makes it possible to work with standard compositions of very large volume at the steelworks, which makes it possible to eliminate special castings and, consequently, greatly reduce downgrading problems. It is even possible to produce very low tonnages of special steels.
  • the process according to the invention is characterized in that use is made of a metallic product in the form of a continuous strip which is moved in a vacuum chamber, that the substance is applied to this strip and this substance is made to diffuse at least partially in the strip when it passes into the vacuum chamber while maintaining it at a temperature below its melting temperature, but high enough to allow this diffusion.
  • the strip is preheated before incorporating the above-mentioned substance.
  • the contribution of the substance mentioned above in the The strip is produced by the sputtering technique, by the vacuum evaporation technique, by arc deposition, by decomposition of a gas carrying this substance in a plasma or by a combination of two or more of these techniques.
  • the invention relates to a process allowing the modification of the chemical composition of a metal in the solid state according to which use is made of a metal product in the form of a continuous strip that the one moves to the parade in a vacuum chamber, in which prevails for example a total gas pressure of 10 "4 to 100 Torr and in which one optionally creates a plasma, facing one or both of its faces, so as to introducing into said strip, for example by bombardment and / or diffusion, a determined substance present in this chamber.
  • This strip is heated and maintained at a temperature high enough to allow at least the partial diffusion of this substance in the strip. is, however, lower than the melting point of the material from which the strip is made, for example, a strip of mild steel, stainless steel or aluminum.
  • the strip is preferably maintained at a temperature of the order of 600 to 1200 ° C., while in the case of aluminum, this temperature is generally of the order of 200 ° to 600 ° C.
  • the strip is advantageously preheated and the abovementioned substance is incorporated before or after an annealing step by means of discharges formed for example by plasma.
  • the appended figure represents an annealing installation in which the composition according to the invention can be carried out of a metal strip, which preferably consists of a sheet of steel, moving in a substantially continuous manner through a vacuum chamber 2 of this installation in which the annealing is carried out by means of plasma discharges.
  • the discharges are established between the sheet 1, during its passage through a first zone 10 of this chamber 2, and a counter-electrode 3, in such a way as to dissipate the electric power coming from the discharges in this sheet 1 and thus therefore to create the annealing.
  • the plasma can be created in direct current, the sheet then forming the cathode, or in alternating current.
  • a counter-electrode 3 extending in the vacuum or annealing chamber 2, facing the sheet 1, and having a surface directed towards the sheet, the area of which is greater than that of the part of the sheet facing it, in order to maintain a negative self-polarization of the latter.
  • the discharge can possibly be carried out in the presence of magnetic induction fields thanks to the presence of magnets 5 near the sheet 1 and on the opposite side of it relative to the counter electrode 3.
  • the power densities dissipated per face on the steel sheet 1 are typically between 1 W / cm 2 and 500 W / cm 2 , while the running speeds of this sheet are generally between 1 m / min and 1500 m / min.
  • the temperature rise takes place in the sheet area where the power dissipation takes place, while the temperature rise rate depends on the adaptation of the power density used, the line speed as well as the thickness of the sheet and its heat capacity. In some cases, it may be useful to introduce a temperature stabilization level in the annealing cycle. This can, for example, be obtained by providing in the vacuum chamber 2 an area where the sheet runs freely under reduced pressure.
  • the contribution of the abovementioned substance can be obtained in zone 10 by any deposition system under vacuum indicated schematically by the reference 8, such as by sputtering by ions from a target not shown or vacuum evaporation, by arc deposition, or more generally by any PVD deposition technique ("physical vapor deposition "), or by PECVD (" plasma enhanced chemical vapor deposition "), that is to say by decomposition of a gas carrying the substance in question, which is, for example, injected into the plasma, as shown schematically by the arrows 9 in the figure.
  • the injection of the substance can be carried out in the temperature maintenance zone 6 in which a discharge can optionally be created.
  • the method according to the invention generally comprises a temperature rise step obtained by the thermal losses of the plasma 4 produced at the strip 1, a step of maintaining the temperature in the compartment 6 where the band 1 is arranged in an accordion.
  • Example 1 Composition of a support for tinplate.
  • the base steel has the following composition: C: 0.035%; N: 0.0025%; Ti: 0%; Mn: 0.4%; B: 0%; Al: 0.04%.
  • Example 2 Composition of a boron steel.
  • a sheet of ULCTi ("Ultra Low Carbon Ti”) steel 1 mm thick is used, the composition of which is as follows: C: 0.003%; N: 0.0025%; Ti: 0.06%; Mn: 0.15%; B: 0%; Al: 0.04%.
  • This strip enters the installation continuously at a line speed of 200 m / min.
  • the strip width is 1000 mm.
  • Heating takes place over a strip length of 10 m and the applied power is 10 MW, so as to reach 800 ° C before entering compartment 6.
  • a deposit of boron is carried out on the surface of the sheet beforehand annealing by vacuum evaporation at a rate of 0.04 g / m 2 of boron per side.
  • the temperature holding zone corresponds to 200 m in length of the sheet.
  • the final boron composition of the sheet at the outlet of the installation was 0.001% and that of the other elements remained unchanged.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
EP98948630A 1997-10-17 1998-10-16 Verfahren zum einstellen der zusammensetzung eines metallischen erzeugnisses Expired - Lifetime EP1025275B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98948630A EP1025275B2 (de) 1997-10-17 1998-10-16 Verfahren zum einstellen der zusammensetzung eines metallischen erzeugnisses

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP97203241A EP0909832A1 (de) 1997-10-17 1997-10-17 Verfahren zum Einstellen der Zusammensetzung eines metallischen Erzeugnisses
EP97203241 1997-10-17
PCT/BE1998/000154 WO1999020808A1 (fr) 1997-10-17 1998-10-16 Procede pour la mise a composition d'un produit metallique
EP98948630A EP1025275B2 (de) 1997-10-17 1998-10-16 Verfahren zum einstellen der zusammensetzung eines metallischen erzeugnisses

Publications (3)

Publication Number Publication Date
EP1025275A1 true EP1025275A1 (de) 2000-08-09
EP1025275B1 EP1025275B1 (de) 2003-11-05
EP1025275B2 EP1025275B2 (de) 2010-12-15

Family

ID=8228838

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97203241A Withdrawn EP0909832A1 (de) 1997-10-17 1997-10-17 Verfahren zum Einstellen der Zusammensetzung eines metallischen Erzeugnisses
EP98948630A Expired - Lifetime EP1025275B2 (de) 1997-10-17 1998-10-16 Verfahren zum einstellen der zusammensetzung eines metallischen erzeugnisses

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97203241A Withdrawn EP0909832A1 (de) 1997-10-17 1997-10-17 Verfahren zum Einstellen der Zusammensetzung eines metallischen Erzeugnisses

Country Status (10)

Country Link
US (1) US6361628B1 (de)
EP (2) EP0909832A1 (de)
JP (1) JP4050461B2 (de)
AT (1) ATE253650T1 (de)
AU (1) AU9524898A (de)
DE (1) DE69819552T3 (de)
DK (1) DK1025275T4 (de)
ES (1) ES2210827T5 (de)
PT (1) PT1025275E (de)
WO (1) WO1999020808A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010001223A1 (en) * 2008-06-30 2010-01-07 Eaton Corporation Continuous production system for magnetic processing of metals and alloys to tailor next generation materials
JP5942886B2 (ja) * 2013-02-18 2016-06-29 Ｊｆｅスチール株式会社 方向性電磁鋼板の窒化処理設備および窒化処理方法
JP5942884B2 (ja) 2013-02-18 2016-06-29 Ｊｆｅスチール株式会社 方向性電磁鋼板の窒化処理設備および窒化処理方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2008969A1 (de) * 1968-05-21 1970-01-30 Centre Nat Rech Metall
US3804679A (en) † 1968-05-21 1974-04-16 Cockerill Method of coating steel products
JPS604265B2 (ja) * 1980-05-30 1985-02-02 松下電器産業株式会社 アルミニウムの硼化方法
EP0181830B1 (de) † 1984-11-08 1991-06-12 Mitsubishi Jukogyo Kabushiki Kaisha Verfahren und Vorrichtung zum Erwärmen eines Metallbandes in einem Durchlaufglühofen
US4872926A (en) * 1987-12-30 1989-10-10 American Air Liquide Process for heat treating metals or metal alloys in a thermal plasma
FR2630133B1 (fr) * 1988-04-18 1993-09-24 Siderurgie Fse Inst Rech Procede pour l'amelioration de la resistance a la corrosion de materiaux metalliques
US5232789A (en) * 1989-03-09 1993-08-03 Mtu Motoren- Und Turbinen-Union Muenchen Gmbh Structural component with a protective coating having a nickel or cobalt basis and method for making such a coating
JPH03177560A (ja) * 1989-12-06 1991-08-01 Nippon Steel Corp 電気絶縁性板状材料の製造方法
DE4211167A1 (de) * 1992-03-31 1993-10-07 Thaelmann Schwermaschbau Veb Verfahren und Vorrichtung zur kontinuierlichen thermischen Oberflächenbehandlung stab- bzw. strangförmiger Materialien mit metallischer Oberfläche
FR2704239B1 (fr) † 1993-04-23 1995-07-13 Ugine Sa Procédé d'enrichissement en un élément d'alliage d'une tôle en acier magnétique.
US5431746A (en) * 1993-08-30 1995-07-11 Sps Technologies, Inc. Method for making thin magnetic strips
JP3014603B2 (ja) † 1994-11-29 2000-02-28 川崎製鉄株式会社 金属帯の連続プラズマ処理装置
DE19527515C1 (de) † 1995-07-27 1996-11-28 Fraunhofer Ges Forschung Verfahren zur Herstellung von korrosionsgeschütztem Stahlblech
BE1010913A3 (fr) * 1997-02-11 1999-03-02 Cockerill Rech & Dev Procede de recuit d'un substrat metallique au defile.
FR2765684B1 (fr) † 1997-07-04 1999-08-20 Lorraine Laminage Controle de l'etancheite des tubes radiants dans les fours industriels

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9920808A1 *

Also Published As

Publication number Publication date
DK1025275T3 (da) 2004-03-15
DE69819552T2 (de) 2004-05-13
ES2210827T5 (es) 2011-05-04
JP2001520319A (ja) 2001-10-30
EP1025275B1 (de) 2003-11-05
DK1025275T4 (da) 2011-03-21
US6361628B1 (en) 2002-03-26
AU9524898A (en) 1999-05-10
EP1025275B2 (de) 2010-12-15
ATE253650T1 (de) 2003-11-15
PT1025275E (pt) 2004-03-31
JP4050461B2 (ja) 2008-02-20
ES2210827T3 (es) 2004-07-01
DE69819552D1 (de) 2003-12-11
WO1999020808A1 (fr) 1999-04-29
EP0909832A1 (de) 1999-04-21
DE69819552T3 (de) 2011-06-09

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