EP1563113B1 - Verfahren und vorrichtung zur schmelztauchbeschichtung eines metallstranges - Google Patents

Verfahren und vorrichtung zur schmelztauchbeschichtung eines metallstranges Download PDF

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Publication number
EP1563113B1
EP1563113B1 EP03811347A EP03811347A EP1563113B1 EP 1563113 B1 EP1563113 B1 EP 1563113B1 EP 03811347 A EP03811347 A EP 03811347A EP 03811347 A EP03811347 A EP 03811347A EP 1563113 B1 EP1563113 B1 EP 1563113B1
Authority
EP
European Patent Office
Prior art keywords
container
metal
coating
molten coating
coating metal
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 - Lifetime
Application number
EP03811347A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1563113A2 (de
Inventor
Bernhard Tenckhoff
Holger Behrens
Bodo Falkenhahn
Michael Zielenbach
Rolf Brisberger
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1563113A2 publication Critical patent/EP1563113A2/de
Application granted granted Critical
Publication of EP1563113B1 publication Critical patent/EP1563113B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0034—Details related to elements immersed in bath
    • 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
    • C23C2/003—Apparatus
    • C23C2/0035—Means for continuously moving substrate through, into or out of the bath
    • 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
    • C23C2/003—Apparatus
    • C23C2/0036—Crucibles
    • C23C2/00361—Crucibles characterised by structures including means for immersing or extracting the substrate through confining wall area
    • C23C2/00362—Details related to seals, e.g. magnetic means
    • 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
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/24—Removing excess of molten coatings; Controlling or regulating the coating thickness using magnetic or electric fields
    • 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
    • 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
    • C23C2/50—Controlling or regulating the coating processes
    • C23C2/52—Controlling or regulating the coating processes with means for measuring or sensing
    • C23C2/523—Bath level or amount

Definitions

  • the invention relates to a process for hot-dip coating a metal strand, in particular a steel strip, in which the metal strand is at least partially vertically passed through a container receiving the molten coating metal at a predetermined conveying speed. Furthermore, the invention relates to a device for hot dip coating of a metal strand.
  • the belts are introduced from above into the dip-coating bath in a plunger.
  • the coating metal is in liquid form and one desires to use gravity together with blowers to adjust the coating thickness, subsequent processes will contact the tape until complete solidification of the coating metal prohibit the tape in the coating vessel in the vertical direction must be deflected. This happens with a roller that runs in liquid metal. Due to the liquid coating metal, this roller is subject to heavy wear and is the cause of downtimes and thus failures in production.
  • Such a solution is for example from the EP 0 673 444 B1 known.
  • An electromagnetic closure for sealing the coating vessel down is also the solution according to the WO 96/03533 or the one according to the JP 5086446 one.
  • Hot-dip coating methods and associated apparatuses which use an electromagnetic closure in the bottom area of the coating vessel are furthermore known from US Pat EP 0 803 586 A1 , of the US 5,665,437 and from the DE 101 60 949 A1 known.
  • the invention is therefore based on the object, a method and an associated apparatus for hot dip coating a metal strand with which it is possible to efficiently influence the parameters of the hot-dip coating, without necessarily changing the flow rate of the metal strand through the molten coating metal.
  • the solution of this problem by the invention is procedurally characterized in that the conveying speed of the metal strand is kept substantially constant by the container and that the residence time of the metal strand in the molten coating metal by controlling or regulating the level of the level of the molten coating metal in the container is set, the metal strand is passed exclusively vertically through the molten coating metal and through a guide channel upstream of the container, and wherein an electromagnetic field is generated by means of at least two inductors arranged on both sides of the metal strand for retaining the coating metal in the container in the region of the guide channel.
  • the concept of the invention is based on the fact that the level of the level of the molten coating metal in the coating container is used for the targeted influencing of parameters which influence the quality of the hot dip coating process. With this procedure, it is possible to influence the coating quality without having to vary the conveying speed of the metal strand through the coating device.
  • the inventive apparatus for hot dip coating a metal strand in which the metal strand is at least partially passed vertically through the container receiving the molten coating metal is characterized by means for controlling the level of the level of the molten coating metal in the container as a function of a predetermined residence time of the metal strand in molten coating metal, wherein the means comprise measuring means for measuring the level of the molten coating metal in the container and means for influencing the level associated with a control or regulating device, and wherein the device comprises a guide channel upstream of the container and at least two on both sides of the Metallstranges arranged in the region of the guide channel inductors for generating an electromagnetic field for retaining the Be Schweizersmet alls in the container.
  • the means for influencing the level of the molten coating metal have a sequence for discharging molten coating metal from the container into a storage container and a pump for conveying molten coating metal from the storage container into the container.
  • the storage container is preferably arranged below the container.
  • the capacity of the container volume is many times smaller than that of the storage container; In this case, it is provided in particular that the capacity of the container is between 5 to 20% of that of the storage container.
  • FIG. 1 An embodiment of the invention is shown.
  • the single figure shows schematically a hot-dip coating device with a guided through this metal strand.
  • the device has a container 3 which is filled with molten coating metal 2. This may be, for example, zinc or aluminum.
  • molten coating metal 2 This may be, for example, zinc or aluminum.
  • To be coated metal strand 1 in the form of a steel strip passes through the container 3 in the conveying direction R vertically upward with a predetermined and constant in the process conveyor speed v.
  • the inductors 5 are two oppositely disposed alternating field or traveling field inductors, which are operated in the frequency range from 2 Hz to 10 kHz and establish an electromagnetic transverse field perpendicular to the conveying direction R.
  • the preferred frequency range for single-phase systems (AC field inductors) is between 2 kHz and 10 kHz, that for multi-phase systems (eg traveling field inductors) between 2 Hz and 2 kHz.
  • active action is taken on the level h of the molten coating metal 2 in the container 3 via suitable means and this is used specifically to influence the process parameters and thus the quality of the coating.
  • means 6 for controlling or regulating the height h of the water level are provided, it being apparent from the figure that the water level h can move within wide limits between a minimum water level h min and a maximum water level h max .
  • the means 6 for controlling or regulating the height h of the water level initially consist of a measuring means 7 with which the current water level h can be measured.
  • the measured by the measuring means 7 value is fed to a control or regulating device 10.
  • This also maintains the desired value of the residence time t of the metal strand 1 in the coating metal 2.
  • the control or regulating device 10 can influence means 8, 9 for influencing the water level h, in particular a discharge 8, with the molten coating metal 2 from the container 3 can be drained, as well as on a variable speed pump 9, can be pumped with the coating metal 2 in the container 3.
  • the desired or required level h can be controlled or regulated by the control or regulating device 10.
  • a storage container 11 is arranged below the container 3.
  • a pipe 12 connects the outlet 8 with the storage tank 11.
  • a pipe 13 is provided, in which the pump is arranged, can be pumped with the coating metal 2 from the storage tank 11 into the container 3.
  • the coating bath level is thus adjusted or regulated dynamically via the outlet 8 and the pump 9. This makes it possible to use the water level h as a control variable for quality control of the coated metal strand 1.
  • the associated change in the residence time t of the metal strand 1 in the coating metal 2-quality features of the metal strand 1 coated behind the coating device are set or readjusted-at a constant conveying speed v.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
EP03811347A 2002-11-21 2003-10-06 Verfahren und vorrichtung zur schmelztauchbeschichtung eines metallstranges Expired - Lifetime EP1563113B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10254306A DE10254306A1 (de) 2002-11-21 2002-11-21 Verfahren und Vorrichtung zur Schmelztauchbeschichtung eines Metallstranges
DE10254306 2002-11-21
PCT/EP2003/011080 WO2004046412A2 (de) 2002-11-21 2003-10-06 Verfahren und vorrichtung zur schmelztauchbeschichtung eines metallstranges

Publications (2)

Publication Number Publication Date
EP1563113A2 EP1563113A2 (de) 2005-08-17
EP1563113B1 true EP1563113B1 (de) 2008-02-27

Family

ID=32240231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03811347A Expired - Lifetime EP1563113B1 (de) 2002-11-21 2003-10-06 Verfahren und vorrichtung zur schmelztauchbeschichtung eines metallstranges

Country Status (17)

Country Link
US (1) US20060153992A1 (ko)
EP (1) EP1563113B1 (ko)
JP (1) JP4485955B2 (ko)
KR (1) KR101090094B1 (ko)
CN (1) CN100445416C (ko)
AT (1) ATE387518T1 (ko)
AU (1) AU2003276069B2 (ko)
BR (1) BR0316515B1 (ko)
CA (1) CA2506389C (ko)
DE (2) DE10254306A1 (ko)
ES (1) ES2298625T3 (ko)
MX (1) MXPA05005311A (ko)
MY (1) MY139905A (ko)
PL (1) PL212670B1 (ko)
RU (1) RU2338809C2 (ko)
TW (1) TWI334451B (ko)
WO (1) WO2004046412A2 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL376865A1 (pl) * 2003-02-27 2006-01-09 Sms Demag Aktiengesellschaft Sposób i urządzenie do zanurzeniowego powlekania taśm metalowych, zwłaszcza taśm stalowych
DE102005012296A1 (de) * 2005-03-17 2006-09-21 Sms Demag Ag Verfahren und Vorrichtung zum Entzundern eines Metallbandes
MY157670A (en) * 2006-08-30 2016-07-15 Bluescope Steel Ltd Metal-coated steel strip
RU2488644C2 (ru) * 2011-10-25 2013-07-27 Александр Александрович Кулаковский Устройство для нанесения покрытия на протяженное изделие
AT520084B1 (de) * 2017-10-03 2019-01-15 Primetals Technologies Austria GmbH Verfahren zum Betrieb einer Gieß-Walz-Verbundanlage und Gieß-Walz-Verbundanlage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556109B2 (fr) * 1983-08-29 1986-09-12 Comp Generale Electricite Dispositif pour deposer en regime continu une couche de silicium polycristallin sur un ruban de carbone
FR2592064B1 (fr) * 1985-12-23 1988-02-12 Elf Aquitaine Dispositif pour former un bain d'un materiau semi-conducteur fondu afin d'y faire croitre un element cristallin
DE4242380A1 (de) * 1992-12-08 1994-06-09 Mannesmann Ag Verfahren und Vorrichtung zum Beschichten der Oberfläche von strangförmigem Gut
KR100264257B1 (ko) * 1995-11-10 2000-08-16 에모토 간지 용융금속의 유지방법 및 장치와 이를 이용한 용융아연 도금장치 및 설비
CA2225537C (en) * 1996-12-27 2001-05-15 Mitsubishi Heavy Industries, Ltd. Hot dip coating apparatus and method
DE19758140A1 (de) * 1997-12-19 1999-07-08 Mannesmann Ag Verfahren zum Erzeugen von Metallprodukten aus Verbundwerkstoff
DE10146791A1 (de) * 2001-09-20 2003-04-10 Sms Demag Ag Verfahren und Vorrichtung zum Beschichten der Oberfläche von strangförmigem metallischem Gut
DE10160949A1 (de) * 2001-12-12 2003-06-26 Sms Demag Ag System und Verfahren zum Beschichten der Oberfläche eines Metallbandes

Also Published As

Publication number Publication date
EP1563113A2 (de) 2005-08-17
BR0316515A (pt) 2005-10-04
JP4485955B2 (ja) 2010-06-23
TW200408725A (en) 2004-06-01
CN100445416C (zh) 2008-12-24
CN1729309A (zh) 2006-02-01
WO2004046412A2 (de) 2004-06-03
US20060153992A1 (en) 2006-07-13
BR0316515B1 (pt) 2012-11-27
TWI334451B (en) 2010-12-11
CA2506389A1 (en) 2004-06-03
ATE387518T1 (de) 2008-03-15
MY139905A (en) 2009-11-30
PL212670B1 (pl) 2012-11-30
RU2005119289A (ru) 2006-02-10
DE10254306A1 (de) 2004-06-03
MXPA05005311A (es) 2005-08-16
KR101090094B1 (ko) 2011-12-07
ES2298625T3 (es) 2008-05-16
KR20050085016A (ko) 2005-08-29
RU2338809C2 (ru) 2008-11-20
AU2003276069B2 (en) 2009-01-29
AU2003276069A1 (en) 2004-06-15
WO2004046412A3 (de) 2004-07-29
CA2506389C (en) 2011-09-13
PL375258A1 (en) 2005-11-28
JP2006508240A (ja) 2006-03-09
DE50309275D1 (de) 2008-04-10

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