EP1325163A1 - Installation a double usage pour le recuit continu et la galvanisation a chaud - Google Patents

Installation a double usage pour le recuit continu et la galvanisation a chaud

Info

Publication number
EP1325163A1
EP1325163A1 EP01965631A EP01965631A EP1325163A1 EP 1325163 A1 EP1325163 A1 EP 1325163A1 EP 01965631 A EP01965631 A EP 01965631A EP 01965631 A EP01965631 A EP 01965631A EP 1325163 A1 EP1325163 A1 EP 1325163A1
Authority
EP
European Patent Office
Prior art keywords
facility
continuous annealing
steel sheet
hot dip
dual
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
EP01965631A
Other languages
German (de)
English (en)
Other versions
EP1325163A4 (fr
EP1325163B1 (fr
Inventor
Masanori c/o NIPPON STEEL CORPORATION HOSHINO
Kouichi c/o NIPPON STEEL CORPORATION TERAHARA
Motofumi c/o NIPPON STEEL CORPORATION TAKEMURA
Nobuyoshi c/o NIPPON STEEL CORPORATION OKADA
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
Publication of EP1325163A1 publication Critical patent/EP1325163A1/fr
Publication of EP1325163A4 publication Critical patent/EP1325163A4/fr
Application granted granted Critical
Publication of EP1325163B1 publication Critical patent/EP1325163B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/562—Details
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

Definitions

  • the present invention relates to a dual-purpose installation for continuous annealing and hot dip plating to produce a continuously annealed steel sheet as well as a hot dip plated steel sheet by switching process routes in the single installation.
  • Japanese Unexamined Patent Publication No. S55-6469 discloses a dual-purpose installation used for a hot dip plating line and a continuous annealing line, wherein a steel sheet coming out from a continuous annealing furnace is cooled in the normal atmosphere without being dipped into a plating pot when producing a continuously annealed steel sheet.
  • a steel sheet just coming out from a continuous annealing furnace has a high temperature, there is a problem in that the surfaces of the steel sheet will become oxidized if no countermeasures are taken.
  • An idea has been proposed of installing a pickling apparatus for removing the oxide films on the surfaces. However, this requires additional equipment investment, the necessity of newly installing a waste liquor treatment facility and increased operational loads .
  • Japanese Patent Application No. Hll-5298 discloses an apparatus to sufficiently lower the temperature of a steel sheet at the exit from a continuous annealing furnace so as to prevent the steel sheet from oxidizing when it comes out from the continuous annealing furnace and is exposed to the outside atmosphere.
  • cooling a steel sheet to a temperature where it does not become oxidized when exposed to the normal atmosphere requires a larger cooling apparatus in the continuous annealing furnace and resultant increased equipment investment.
  • the present invention proposes measures to solve the above problems and make a dual-purpose installation for continuous annealing and hot dip plating or hot dip galvanizing to produce a steel sheet without incurring a large increase in equipment costs.
  • the gist of the present invention to solve the above problems is as follows: (1) A dual-purpose installation for continuous annealing and hot dip plating wherein at least a continuous annealing furnace, a coating pot, a coating facility and a water quenching facility are arranged in the form of a processing line along the travelling direction of a steel sheet, characterized by having a bypass facility enabling a steel sheet to be led from the continuous annealing furnace directly to the water quenching facility without being exposed to the outside atmosphere and the interior of the bypass facility being kept filled with a non-oxidizing atmosphere.
  • a dual-purpose installation for continuous annealing and hot dip plating characterized by having an alloying furnace, a steel sheet cooling unit, or both of them proceeding to a coating pot and a coating facility and being equipped with the bypass facility according to the item ( 1 ) .
  • a dual-purpose installation for continuous annealing and hot dip plating according to the item (1) or (2), enabling the coating facility and the equipment in the coating pot to be transported and repaired and the production efficiency to be improved by installing the coating pot, the coating facility and a crane beneath the bypass facility.
  • Fig. 1 is a schematic illustration showing a dual- purpose installation for continuous annealing and hot dip plating to which the present invention is applied.
  • Fig. 1 is a schematic illustration of the annealing furnace portion of a dual-purpose installation for continuous annealing and hot dip plating or hot dip galvanizing to which the present invention is applied.
  • a steel sheet 1 is annealed in a continuous annealing furnace 2.
  • the steel sheet 1 is fed to a coating pot 3 and plated after going through the continuous annealing furnace 2 as shown by dotted lines.
  • the coating weight is controlled by a coating facility 4
  • the steel sheet is subjected to alloying treatment in an alloying furnace 5, as required, cooled by steel sheet cooling units 6, and then cooled further to near room temperature in a water quenching facility 7.
  • the above sequence of process steps is exactly the same as the normal process sequence for producing a hot dip plated or hot dip galvanized product.
  • the steel sheet 1 When producing a continuously annealed steel sheet, the steel sheet 1 has to be cooled to near room temperature by the water quenching facility 7, without going through the coating pot 3, the coating facility 4, the alloying furnace 5 and the cooling units 6. However, if the steel sheet 1 is exposed to the outside atmosphere after going through the continuous annealing furnace 2, the surfaces of the steel sheet become oxidized. To avoid oxidization, a bypass facility 8 is installed in the present invention so that the steel sheet can travel from the continuous annealing furnace 2 directly to the water quenching facility 7 without being exposed to the outside atmosphere.
  • the steel sheet 1 can be transferred to the water quenching facility 7 and cooled without being oxidized. Further, by installing the coating pot 3, the coating facility 4 and a crane 9 beneath the bypass facility 8, it becomes possible to transport and repair the coating pot, the coating facility or the equipment in the coating pot during the production of a continuously annealed product, thus enhancing production efficiency.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

La présente invention concerne une installation pour le recuit continu et la galvanisation à chaud en vue de produire une feuille d'acier recuite en continu et une feuille d'acier galvanisée à chaud par l'aiguillage de routage de processus dans une installation unique, et selon la présente invention, par l'installation d'une unité de dérivation qui conduit une feuille d'acier d'un four de recuit continu vers une unité de trempe sans qu'elle ne passe par une chambre de galvanisation et une unité de galvanisation dans l'installation à double usage pour le recuit continu et une galvanisation à chaud, il est possible d'empêcher la feuille d'acier provenant du four de recuit d'être exposée à l'air ambiant et d'être oxydée durant la fabrication d'un produit recuit et de réaliser une installation à double usage moins coûteux pour le recuit continu et la galvanisation à chaud.
EP01965631A 2000-09-13 2001-09-13 Installation a double usage pour le recuit continu et la galvanisation a chaud Expired - Lifetime EP1325163B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000278566 2000-09-13
JP2000278566A JP2002088414A (ja) 2000-09-13 2000-09-13 連続焼鈍及び溶融メッキ兼用設備
PCT/JP2001/007969 WO2002022894A1 (fr) 2000-09-13 2001-09-13 Installation a double usage pour le recuit continu et la galvanisation a chaud

Publications (3)

Publication Number Publication Date
EP1325163A1 true EP1325163A1 (fr) 2003-07-09
EP1325163A4 EP1325163A4 (fr) 2005-02-16
EP1325163B1 EP1325163B1 (fr) 2008-05-07

Family

ID=18763710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01965631A Expired - Lifetime EP1325163B1 (fr) 2000-09-13 2001-09-13 Installation a double usage pour le recuit continu et la galvanisation a chaud

Country Status (12)

Country Link
US (1) US20030189276A1 (fr)
EP (1) EP1325163B1 (fr)
JP (1) JP2002088414A (fr)
KR (1) KR20030027107A (fr)
CN (1) CN100357461C (fr)
AU (2) AU2001286234B2 (fr)
BR (1) BR0113848B1 (fr)
CA (1) CA2421925A1 (fr)
DE (1) DE60133912D1 (fr)
RU (1) RU2255138C2 (fr)
TW (1) TW565620B (fr)
WO (1) WO2002022894A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3095452A1 (fr) 2019-04-29 2020-10-30 Fives Stein Ligne de traitement en continu de bandes métalliques à double usage

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5058769B2 (ja) * 2007-01-09 2012-10-24 新日本製鐵株式会社 化成処理性に優れた高強度冷延鋼板の製造方法および製造設備
BR112012006970B1 (pt) 2009-10-01 2018-04-17 Nippon Steel & Sumitomo Metal Corporation Equipamento de duplo propósito de revestimento contínuo por imersão a quente e recozimento contínuo
BR112015032429A2 (pt) * 2013-06-26 2017-07-25 Jfe Steel Corp equipamento de tratamento combinado para galvanização mergulhada a quente de folhas de aço e recozimento contínuo
JP6451138B2 (ja) 2014-08-11 2019-01-16 Ｊｆｅスチール株式会社 鋼帯の製造方法
JP6450109B2 (ja) 2014-08-11 2019-01-09 Ｊｆｅスチール株式会社 鋼帯の製造装置
EP3403736A1 (fr) * 2017-05-17 2018-11-21 Primetals Technologies Austria GmbH Introduction de bandes métalliques dans une installation de traitement de bande
RU2769680C2 (ru) * 2019-06-13 2022-04-05 Сергей Александрович Ненашев Устройство для изготовления стальной ленты
CN112095061B (zh) * 2020-08-31 2024-06-21 广州Jfe钢板有限公司 两种不同钢板产品的生产切换生产通道及切换方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2093486A (en) * 1981-02-24 1982-09-02 Kloeckner Werke Ag Plant for the continuous treatment of thin plate or strip
EP0072874A1 (fr) * 1981-08-25 1983-03-02 Nippon Steel Corporation Installation à double function pour la fabrication d'une tôle d'acier laminée à froid et revêtue à chaud

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132437A (en) * 1977-04-26 1978-11-18 Nippon Steel Corp Continuous treatment facilities for cold rolled steel band
US4408561A (en) * 1981-08-24 1983-10-11 Nippon Steel Corporation Dual-purpose plant for producing cold rolled steel sheet and hot-dip galvanized steel sheet
JPS5871366A (ja) * 1981-10-22 1983-04-28 Nippon Steel Corp 冷延鋼板と溶融亜鉛メツキ鋼板の兼用製造設備
JP2619550B2 (ja) * 1990-03-20 1997-06-11 川崎製鉄株式会社 合金化溶融亜鉛めっき鋼板の製造方法
US5403468A (en) * 1991-03-13 1995-04-04 Kawasaki Steel Corporation Process for the manufacture of tinplate using a fused tin chloride electroplating bath

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2093486A (en) * 1981-02-24 1982-09-02 Kloeckner Werke Ag Plant for the continuous treatment of thin plate or strip
EP0072874A1 (fr) * 1981-08-25 1983-03-02 Nippon Steel Corporation Installation à double function pour la fabrication d'une tôle d'acier laminée à froid et revêtue à chaud

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0222894A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3095452A1 (fr) 2019-04-29 2020-10-30 Fives Stein Ligne de traitement en continu de bandes métalliques à double usage
WO2020221977A1 (fr) 2019-04-29 2020-11-05 Fives Stein Ligne de traitement en continu de bandes métalliques à double usage de production de bandes recuites et revêtues au trempé ou non revêtues, tour de refroidissement et procédé de passage d'une configuration à l'autre correspondants

Also Published As

Publication number Publication date
CN1452667A (zh) 2003-10-29
DE60133912D1 (de) 2008-06-19
EP1325163A4 (fr) 2005-02-16
AU8623401A (en) 2002-03-26
JP2002088414A (ja) 2002-03-27
US20030189276A1 (en) 2003-10-09
TW565620B (en) 2003-12-11
AU2001286234B2 (en) 2005-06-16
WO2002022894A1 (fr) 2002-03-21
BR0113848B1 (pt) 2011-07-12
BR0113848A (pt) 2003-06-03
EP1325163B1 (fr) 2008-05-07
RU2255138C2 (ru) 2005-06-27
CA2421925A1 (fr) 2002-03-21
CN100357461C (zh) 2007-12-26
KR20030027107A (ko) 2003-04-03

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