EP3420113A1 - Verfahren zum betreiben einer beschichtungseinrichtung zum beschichten eines metallbandes sowie beschichtungseinrichtung - Google Patents
Verfahren zum betreiben einer beschichtungseinrichtung zum beschichten eines metallbandes sowie beschichtungseinrichtungInfo
- Publication number
- EP3420113A1 EP3420113A1 EP17701648.2A EP17701648A EP3420113A1 EP 3420113 A1 EP3420113 A1 EP 3420113A1 EP 17701648 A EP17701648 A EP 17701648A EP 3420113 A1 EP3420113 A1 EP 3420113A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal strip
- coating
- actuators
- currents
- container
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/038—Controlling transverse register of web by rollers
-
- 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
-
- 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
- C23C2/00342—Moving elements, e.g. pumps or mixers
- C23C2/00344—Means for moving substrates, e.g. immersed rollers or immersed bearings
-
- 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
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
- C23C2/20—Strips; Plates
-
- 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
- C23C2/524—Position of the substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/44—Moving, forwarding, guiding material
- B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
- B65H2301/4433—Moving, forwarding, guiding material by acting on surface of handled material by means holding the material
- B65H2301/44332—Moving, forwarding, guiding material by acting on surface of handled material by means holding the material using magnetic forces
-
- 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
Definitions
- the invention relates to a method for operating a coating apparatus for coating a metal strip, for example a hot-dip galvanizing line for coating the metal strip with zinc.
- the thicknesses of the zinc layers vary both over the length and over the width of the metal strip.
- the layer thickness can change by up to 10 g per m 2 . Since minimum layer thicknesses have to be guaranteed today, the average layer thickness must be set so that all areas of the strip are above a limit value. In order to reduce the zinc consumption, there is a desire to reduce the fluctuation range.
- the thickness of the zinc layer is significantly influenced by the setting of a stripping device, that is with the aid of wiping nozzles. If the distance between the metal strip and the nozzles in the slot of the stripping device varies, this immediately leads to variations in the layer thickness on the metal strip.
- the distance can vary over the bandwidth.
- vibrations of the band in the slot of the scraper are vibrations of the band in the slot of the scraper
- Thickness variations over the length of the metal strip cause.
- the stripping device is connected downstream in the transport direction of the metal strip.
- Such an electromagnetic stabilization device is z. B. known from the European patent application EP 1 516 939 A1.
- the belt stabilizer disclosed therein comprises a plurality of magnets in the form of electromagnetic coils on both sides of the coated one
- the magnets are arranged in pairs so far that each face two magnets on both sides of the metal strip.
- the current with which the coils or magnets are fed, is in
- the thickness, the speed, the width or internal stresses of the metal strip with respect to a desired distance between the metal strip and the electromagnets or regulated.
- the distance is measured by means of suitable position sensors.
- European Patent EP 1 794 339 B1 also discloses a
- Coating device for coating a metal strip wherein the
- Band stabilization by means of electromagnetic coils takes place.
- a plurality of coils in the width direction of the metal strip are preferably arranged next to one another, wherein the coils also each with different currents
- EP 1 794 339 B1 envisages that the position of the metal strip within the metal strip is reached in order to achieve a predetermined target layer thickness profile on the metal strip
- Band coating device is controlled to a predetermined position target value by the coils of the coil coating device are operated with a correspondingly suitable current.
- a coil current analyzer can also be used which determines the distance of the metal strip from the coils on the basis of the measured coil current.
- Metal strip with an initially still liquid coating material eg. Zinc
- Page 2 is described.
- the metal strip passes through a pair of rollers, wherein one of the rollers of the pair of rollers can be adjusted as a correction roller against the other in order to eliminate any curvature of the metal strip.
- the metal strip passes through a blow-off device for blowing off excess parts of the coating.
- the actual position of the metal strip is on a
- Belt stabilizers are not monitored for electrical overload. Especially when trying with the help of
- the invention is therefore the object of developing a known method and a known coating device for coating a metal strip to the effect that an electrical or mechanical overload of the band stabilization device and in particular the actuators or coils within the band coating device is reliably prevented during their operation.
- Anstellposition so that the amounts of the currents are below the current threshold value or the amounts of forces below the force threshold.
- the present invention claims a position control for the metal strip.
- the adjustment of the currents typically takes place within the scope of the regulation
- the position control comprises the following sub-steps: Direct or indirect detection of the actual position of the metal strip by means of distance sensors between the stripping and the
- the determined position control deviation of the control i. the controller, supplied as input.
- the controller calculates suitable actuating signals for actuators so that the position control deviation becomes zero as far as possible.
- the invention provides two actuators, namely the adjustment of the currents of
- Primary actuator are the
- Metal band in by causing at least a rough pre-setting or pre-setting of the metal strip to the desired position.
- the remaining correction effort for the coils is reduced. That is, it only requires smaller forces and thus only smaller currents for the coils to the
- the currents are therefore primarily used before the correction roller as an actuator, because they can be set much faster and act as the correction roller.
- Correction roll ensured. This is particularly advantageous for product changes, because then z. B. can change the thicknesses or the yield strengths of the material of the new metal strip to be coated, which possibly makes the application of larger forces within the band stabilizer required.
- the present invention reliably ensures, even with a product change, that the belt stabilizing device only within its
- the desired position of the metal strip in the slot of the belt stabilization device can be specified.
- the actual position of the metal strip can there usually well arranged with the help of there
- Scrapping be predetermined. Then, the detection of the actual position of the metal strip is ideally carried out directly in the slot of the stripping device with the aid of distance sensors mounted there. However, the environmental conditions in the slot of the wiper are generally unsuitable for non-contact
- the distance sensors are typically between the stripping device and the belt stabilizing device or within the
- Correction roller the forces stored on the metal strip in the setting position of the correction roller and / or the setting position of the correction roller, z. B. in one
- Storage device or a cloud preferably classified according to the steel grade of the metal strip, the temperature of the coating agent in the container, the temperature of the metal strip, the thickness of the metal strip, the width of the metal strip
- Metal strip and / or the yield strength of the material of the metal strip are advantages of saving.
- the advantage of saving is that, in the event of a later product change, when a similar metal strip is to be coated again, the stored values can already be used as good starting values for the currents of the actuators or the position of the correction roller. Due to the good starting values, any shape or position deviations can already be partly compensated.
- FIG. 1 Illustrates coating device according to the invention.
- the invention will be described in detail below with reference to this figure in the form of embodiments.
- the figure shows a coating device 100 for coating a
- the coating device 100 may be, for example, a
- Hot dip galvanizing device for coating the metal strip 200 with zinc act has a container 110, which is filled with the liquid coating agent 300 during operation.
- Transport direction of the metal strip is denoted by the reference R.
- the metal strip 200 After leaving the container 110, the metal strip 200, together with the adhesive, which is still initially liquid, passes through a stripping device 140 with nozzles 142 for blowing off excess coating agent from the metal strip.
- the metal strip passes through an electromagnetic strip stabilizer 160 having a plurality of electromagnetic actuators 162, typically coils. The coils are arranged on both sides of the metal strip for applying forces to the metal strip 200.
- the strip stabilizing device 160 in the figure is an example of the stripping device 140 in the transport direction R of the metal strip 200
- Distance sensors 150 for directly or indirectly detecting the actual position of the metal strip 200 within the stripping device 140.
- a controller 170 is provided for receiving the position signals generated by the distance sensors 150 which determine the position of the metal strip at the location of the measurement
- the controller 170 is further configured to supply output signals to the
- Band stabilizer 160 output for individual adjustment of the currents of the coils and output an output signal to an actuator 132 for setting or method of the correction roller 130th
- the said coating device 100 is operated as follows: First, the actual position of the metal strip 200 in the slot of
- Wiper 140 detected directly or indirectly by means of the distance sensors 150.
- the term "direct measurement” assumes in this case that the distance sensors 150 are actually arranged within the stripping device 140 and monitor the slot therein.
- the detection of the actual position of the metal strip in the slot of the stripping device 140 is typically carried out indirectly by determining the actual position.
- Position of the metal strip 200 outside of the stripping device 140 is detected by means of the distance sensors and subsequently with the aid of a
- Conversion device 152 is converted into the actual position within the stripping device 140. If only a rough determination of the actual position of the metal strip in the slot of the stripping device 140 is required, and in particular if the distance sensors 150 are not disposed within the stripping device 140, but very close thereto, can on the said
- the inventive method then further provides that the detected actual position of the metal strip is compared with a predetermined desired position in the slot of the stripping device 140 in order to determine a possible
- Position control deviation The metal strip is then positioned within the slot of the strip stabilizer by setting appropriate currents of the actuators so that the position control deviation becomes as close to zero as possible. It may be necessary that considerable forces are applied to the metal strip
- Band stabilizer 160 is provided according to the invention, that the amounts of the set currents with a predetermined current threshold value or that the forces exerted by the actuators 162 on the metal strip forces are compared with a predetermined force threshold and that the correction roller 130 by means of the control 170th is moved into such a setting position that the amounts of the set currents are below the current threshold value or the amounts of forces below the force threshold. This ensures that the operating limits of the
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)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016202740 | 2016-02-23 | ||
| DE102016222224.4A DE102016222224A1 (de) | 2016-02-23 | 2016-11-11 | Verfahren zum Betreiben einer Beschichtungseinrichtung zum Beschichten eines Metallbandes sowie Beschichtungseinrichtung |
| PCT/EP2017/050660 WO2017144194A1 (de) | 2016-02-23 | 2017-01-13 | Verfahren zum betreiben einer beschichtungseinrichtung zum beschichten eines metallbandes sowie beschichtungseinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3420113A1 true EP3420113A1 (de) | 2019-01-02 |
Family
ID=59522256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17701648.2A Withdrawn EP3420113A1 (de) | 2016-02-23 | 2017-01-13 | Verfahren zum betreiben einer beschichtungseinrichtung zum beschichten eines metallbandes sowie beschichtungseinrichtung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10982307B2 (de) |
| EP (1) | EP3420113A1 (de) |
| DE (1) | DE102016222224A1 (de) |
| WO (1) | WO2017144194A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014225516B3 (de) * | 2014-11-21 | 2016-03-31 | Fontaine Engineering Und Maschinen Gmbh | Verfahren und Vorrichtung zum Beschichten eines Metallbandes |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19535854C2 (de) | 1995-09-18 | 1997-12-11 | Mannesmann Ag | Verfahren zur Bandstabilisierung in einer Anlage zum Beschichten von bandförmigem Gut |
| TW476679B (en) * | 1999-05-26 | 2002-02-21 | Shinko Electric Co Ltd | Device for suppressing the vibration of a steel plate |
| SE0002890D0 (sv) | 2000-08-11 | 2000-08-11 | Po Hang Iron & Steel | A method for controlling the thickness of a galvanising coating on a metallic object |
| JP4547818B2 (ja) | 2001-03-16 | 2010-09-22 | Jfeスチール株式会社 | 溶融めっき鋼板のめっき付着量制御方法 |
| JP3868249B2 (ja) | 2001-07-30 | 2007-01-17 | 三菱重工業株式会社 | 鋼板形状矯正装置 |
| JP3530514B2 (ja) * | 2001-08-02 | 2004-05-24 | 三菱重工業株式会社 | 鋼板形状矯正装置及び方法 |
| JP3901969B2 (ja) | 2001-08-29 | 2007-04-04 | 三菱重工業株式会社 | 鋼板の制振装置 |
| DE10146791A1 (de) | 2001-09-20 | 2003-04-10 | Sms Demag Ag | Verfahren und Vorrichtung zum Beschichten der Oberfläche von strangförmigem metallischem Gut |
| JP2004027315A (ja) | 2002-06-27 | 2004-01-29 | Jfe Steel Kk | 溶融金属めっき鋼板の製造方法および製造装置 |
| DE102004060425B3 (de) | 2004-08-24 | 2006-04-27 | Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH | Verfahren zur Bandbeschichtung |
| CN101146925B (zh) * | 2005-03-24 | 2012-06-27 | Abb研究有限公司 | 稳定钢板的设备和方法 |
| DE102005060058B4 (de) | 2005-12-15 | 2016-01-28 | Emg Automation Gmbh | Verfahren und Vorrichtung zum Stabilisieren eines Bandes |
| AU2008290746B2 (en) * | 2007-08-22 | 2011-09-08 | Sms Siemag Ag | Process and hot-dip coating system for stabilizing a strip guided between stripping dies of the hot-dip coating system and provided with a coating |
| JP5440745B1 (ja) | 2012-05-10 | 2014-03-12 | 新日鐵住金株式会社 | 鋼板形状制御方法及び鋼板形状制御装置 |
| DE102014225516B3 (de) | 2014-11-21 | 2016-03-31 | Fontaine Engineering Und Maschinen Gmbh | Verfahren und Vorrichtung zum Beschichten eines Metallbandes |
-
2016
- 2016-11-11 DE DE102016222224.4A patent/DE102016222224A1/de active Pending
-
2017
- 2017-01-13 US US16/079,486 patent/US10982307B2/en active Active
- 2017-01-13 WO PCT/EP2017/050660 patent/WO2017144194A1/de not_active Ceased
- 2017-01-13 EP EP17701648.2A patent/EP3420113A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US10982307B2 (en) | 2021-04-20 |
| WO2017144194A1 (de) | 2017-08-31 |
| DE102016222224A1 (de) | 2017-08-24 |
| US20190062887A1 (en) | 2019-02-28 |
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