CN101184861A - A device and a method for coating an elongated metallic element with a layer of metal - Google Patents

A device and a method for coating an elongated metallic element with a layer of metal Download PDF

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Publication number
CN101184861A
CN101184861A CNA2006800187149A CN200680018714A CN101184861A CN 101184861 A CN101184861 A CN 101184861A CN A2006800187149 A CNA2006800187149 A CN A2006800187149A CN 200680018714 A CN200680018714 A CN 200680018714A CN 101184861 A CN101184861 A CN 101184861A
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CN
China
Prior art keywords
band
wiping
equipment
wiping member
stable
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
CNA2006800187149A
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Chinese (zh)
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CN101184861B (en
Inventor
简-埃里克·埃里克森
本特·吕德霍尔姆
柳玉敬
斯特凡·伊斯拉埃尔松·坦佩
戈特·塔尔巴克
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ABB AB
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ABB AB
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Publication date
Priority to SE0501338A priority Critical patent/SE528663C2/en
Priority to SE05013388 priority
Priority to SE0501338-8 priority
Application filed by ABB AB filed Critical ABB AB
Priority to PCT/SE2006/050154 priority patent/WO2006130102A1/en
Publication of CN101184861A publication Critical patent/CN101184861A/en
Application granted granted Critical
Publication of CN101184861B publication Critical patent/CN101184861B/en
Expired - Fee Related legal-status Critical Current
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    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/24Removing excess of molten coatings; Controlling or regulating the coating thickness using magnetic or electric fields
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003Apparatus
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14Removing excess of molten coatings; Controlling or regulating the coating thickness
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18Removing excess of molten coatings from elongated material
    • C23C2/20Strips; Plates
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34Hot-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
    • C23C2/36Elongated material
    • C23C2/40Plates; Strips

Abstract

A device and a method for controlling the thickness of a metallic coating on an elongated metallic element (1), wherein the coating is adapted to be applied by continuously transporting the element through a bath (2) of molten metal, and the element is transported from the bath in a transport direction (3) along a predetermined transport path (x). The device comprises at least one pair of electromagnetic wiping members, comprising one wiping member on each side of the element (1) for wiping off excessive molten metal from the element by applying a travelling magnetic field, and wherein each wiping member comprises a wiping pole (5). The device comprises at least one pair of electromagnetic stabilizing members, comprising one stabilizing member on each side of the element (1) for stabilizing the position of the element with respect to the predetermined transport path (x), the stabilizing member comprising a stabilizing pole (5). The wiping member and the stabilizing member on the same side of the element (1) are arranged such that the wiping pole (5) and the stabilizing pole (5) coincide.

Description

Apply the equipment and the method for elongated hardware with metal level
Technical field
The present invention relates to a kind of equipment that is used to control the thickness of the metallic coating on the elongated hardware, wherein, described coating is coated by the molten bath of elongated hardware being transmitted continuously molten metal, and described element transmits along predetermined conveying path along delivery direction from the molten bath.
The invention still further relates to a kind of method that is used to control the thickness of the metallic coating on the elongated hardware.Described coating is coated by the molten bath of element being transmitted continuously molten metal.
To metal band when zinc-plated, this equipment and this method are especially favourable continuously.The present invention will be described with reference to this application subsequently.Yet, should be noted that the present invention can also be applied to the zinc-plated of other metal object, for example metal wire, bar, pipe or other elongated element.Should also be noted that the present invention can be applied to have the coating of the elongated hardware of other coating except zinc (for example tin or aluminium, the perhaps mixture of these or other metal).
Background technology
In the continuous galvanizing process of metal band (for example steel bar), steel bar passes the molten bath that accommodates molten metal (being generally zinc) continuously.In the molten bath, band passes below the buried roller usually, and moves up subsequently, passes and stablizes roller and corrector roll.Band emersion and be transmitted wiping equipment from the molten bath, for example air knife or electromagnetic wiper.The magnetic field that electromagnetic wiper changes, the magnetic field of described variation is used for the thickness of control coating, and wipes any excessive zinc from metal pool.Excessive zinc is back to the molten bath, and can be utilized again thus.Band is supported ground by nothing subsequently and transmits, up to coating cooling and curing.Coated steel bar is directed or is directed to via top roll subsequently and is used for that band cut into isolating band section or is used for band is wrapped in device on the roller.Usually, band vertically moves away from the buried roller, passes corrector roll and stable roller and air knife, arrives top roll.
When steel bar when zinc-plated, purpose is to obtain evenly and the coating of thin thickness.When with going up after excessive molten metal has been wiped free of, and coating is when having cured, and a kind of usual method of the thickness of control coating is a quality of measuring coating after band has for example passed top roll.This survey measurements is used to control air knife, and the thickness of control coating thus.Yet because the geometry of steel bar, band must have the distance that supports the ground operation, its speed and from the influence of electromagnetic wiper, and metal strip will move or vibrates along the direction that is substantially perpendicular to its delivery direction.Can take some measure such as using corrector roll and stable roller, regulate the speed of steel bar and/or regulate band distance that must not have the operation of support ground, laterally move to reduce these.If do not reduce, then these laterally move and will disturb accurately wiping significantly, cause uneven coat-thickness.
In addition, the disturbing force on the band may be caused by wiper device.WO 02/14574 discloses a kind of equipment that is used to control the thickness of the coating on the metal band.Described equipment comprises the electromagnetism Wiping member on each side that is arranged on band, and described electromagnetism Wiping member comprises two wiping posts that are provided with one by one along the delivery direction of band.Applying magnetic force by Wiping member on coating wipes excess molten metal from object.Described equipment also comprises the electromagnetism stabilizing equipment on each side that is arranged on band, and described electromagnetism stabilizing equipment comprises three stability columns.For the vibration that reduces band (described vibration is by causing from the disturbing force of Wiping member or by the free length of band), each electromagnetism wiping post is arranged between two stability columns along the delivery direction of band.
The objective of the invention is to propose a kind of equipment of improvement,, obtain the coated strip of quality improvement thus with thickness at metallizing bar time control metallic coating.
Summary of the invention
According to first aspect, the present invention relates to a kind of equipment of thickness that is used to control the metallic coating on the elongated hardware according to claim 1.Described elongated hardware is preferably metal band.
At the equipment of the thickness that is used for controlling the metallic coating on the metal band, described coating is suitable for by the molten bath of band being transmitted continuously molten metal coated.Described band is used for transmitting along predetermined conveying path along delivery direction from the molten bath, and described equipment comprises at least one pair of electromagnetism Wiping member, on each side of described band, comprise a Wiping member, to wipe excessive molten metal by apply the shifting magnetic field to band from band, wherein each Wiping member comprises the wiping post.Described equipment comprises at least one pair of electromagnetism stabilizing member, comprises a stabilizing member on each side of described band, and stablizing the position of band with respect to predetermined conveying path, thereby each stabilizing member comprises stability column.Described Wiping member and described stabilizing member in the same side of band are adapted such that wiping post and stability column overlap.Cause like this from the stable magneticaction of stabilizing member with the zone identical from the disturbing force of Wiping member in.Since stabilizing power act on from the identical zone of the interference on the band of Wiping member, therefore reduced the crooked of sheet material and vibrated.Another advantage is that described equipment provides the design compacter more than the equipment of prior art.Wiping member and stabilizing member preferably have shared magnetic core.Described shared magnetic core comprises back magnetic core component and preceding magnetic core component.
According to an embodiment, Wiping member and stabilizing member form integrated unit, and this has realized the compact design of equipment.
According to an embodiment, described Wiping member has two phase windings.Be set to only have two phase windings (rather than as existing three phase windings) by the wiping post and wipe excess metal, only obtain a peak value of wiping force on coating, this is proved is enough to obtain the good wiping to over coating.This means that also interference from wiping equipment only occurs over just in the zone perpendicular to the delivery direction of band of band.
According to an embodiment, stabilizing member comprises stable winding.Stable winding is arranged between band and the phase winding.Be arranged between band and the phase winding by stablizing winding, stabilizing member can act in the zone identical with Wiping member.
According to an embodiment, described magnetic core has the cross section that is essentially T shape, and comprises base portion and top.Described base portion is made of preceding magnetic core component basically, and it comprises wiping post and stability column, and described top is made of the back magnetic core component basically.Described top is along the direction setting that is arranged essentially parallel to delivery direction, and described base portion extends towards the direction of band from the edge, top.
According to an embodiment, stablize winding around the base portion setting, and described phase winding is provided with around the top on each side of base portion.This compact design is provided and cause from the stable magneticaction of stabilizing member with the band identical from the interference of Wiping member takes place on the zone in.Since stabilizing power act on from the identical zone of the interference of Wiping member, therefore will reduce the crooked of sheet material and vibrate, keep or improve the quality of coating simultaneously.
According to an embodiment, described equipment comprises second pair of Wiping member, and the described second pair of Wiping member is along the setting of turning up the soil at interval perpendicular to the direction of delivery direction and first pair of Wiping member.Cause the further control that has improved the thickness of the width of crossing band like this, can improve the quality of coated strip like this.
According to an embodiment, described equipment comprises the 3rd pair of Wiping member, and described the 3rd pair of Wiping member is along the setting of turning up the soil at interval perpendicular to the direction of delivery direction and first pair of Wiping member and second pair of Wiping member.By perpendicular to delivery direction and along the width of band three Wiping members being set, the control of wiper forces and stabilizing power can be adjusted to just satisfies current demand in the zone that is covered by corresponding Wiping member.For example, Wiping member is perpendicular to the medullary ray setting of band, and two other Wiping member is positioned at the corresponding sidepiece of the described Wiping member that is provided with perpendicular to described medullary ray.Cause the control of the thickness of the width of crossing band that improves extraly like this, and the quality of the coated strip that is improved like this.
According to an embodiment, at least one is used for test strip is set at very close at least one Wiping member about the transmitter of the position of its predetermined conveying path position.By at least one transmitter being arranged on very near the position (for example Wiping member) that produces disturbing force, the detection that has obtained to improve to the position of band.This means the control and the stability that can realize the band that improves again, and the quality of the coated strip of improving thus.
According to an embodiment, described equipment comprises stable element, and described stable element is suitable for the magnetic permeability in the part of the most close band of control stabilization post.Described stable element comprises the exterior loop in the outside that for example is arranged on described stable winding.Permeability in the described part of stability column is determined based on the distance that bar brings to corresponding stability column.By the magnetic permeability in the described part of control stabilization post, the location-controlled of the band between the stability column.
According to an embodiment, described equipment comprises circuit, and it is suitable for applying electric current at least one edge of band, to produce auxiliary wiping force.The electric current that is applied to an edge of band flows out at another edge of band, for example by closed circuit or by short circuit.Auxiliary wiping force forms by the electric current that applies with from the combination in the magnetic field of wiping post, forms downwards the auxiliary wiping force towards the molten bath thus.Described circuit is suitable for based on being applied to the electric current at least one edge of described band with the actual (real) thickness control along the width of band of the coating of comparing along the required one-tenth-value thickness 1/10 of the coating of the width of band.The actual (real) thickness of coating is for example measured in the operating device after being arranged on Wiping member.Auxiliary wiping force is usually in edge's maximum of band, and allows when needed and obtain the more uniform wiping of crossing band.
According to second aspect, the present invention relates to a kind of method that is used on elongated hardware, applying certain thickness metallic coating according to claim 17.According to an embodiment, described elongated hardware is a metal band.
When on the control metal band during thickness of metallic coating, described coating is coated by the molten bath of band being transmitted continuously molten metal.Transmit described band along delivery direction along predetermined conveying path, and provide the shifting magnetic field, to wipe excessive molten metal from band by metallic coating still uncured on band.In addition, by with act on band on identical zone, shifting magnetic field in provide stable magnetic force to band, the position of object is stable with respect to predetermined transport path.In this way, band with the regional identical zone that disturb to take place in stablize, this has reduced the crooked and vibration in the band, thereby and allow to be used for the higher force density of wiper, this allows the speed increase of band again and obtains process faster, and keeps or improve the quality of band.
After wiping excessive molten metal, measure the thickness of coating, and measured thickness and required one-tenth-value thickness 1/10 control flow to the electric current of two phase windings that produce the shifting magnetic field.
According to an embodiment, band passes through to produce parameter value with respect to the position of transfer path, and (for example, the distance between the physical location of predetermined conveying path and band) at least one transmitter is determined, the magnitude of this control stabilization magnetic force.The position that described stable magnetic force responds band subsequently is applied to band.
According to an embodiment, the magnetic permeability in the part of the most close band by control stabilization post at least makes band stable.The magnetic permeability of the described part of stability column is subjected to the control of stable element, and described stable element comprises for example exterior loop.By based on metal band residing position control magnetic permeability between the wiping post, prevent that metal band from moving towards one of them post because of magnetic force, and described band keeps placed in the middle between the wiping post.
According to one embodiment of present invention, apply electric current at least one edge of metal band.By apply with from the magnetic field bonded electric current of wiping post, obtain downward power, thereby help to obtain uniform wiping action.Downward power is in the edge of band maximum.
Description of drawings
Explain the present invention with reference to accompanying drawing in further detail by explanation, wherein to embodiment
Fig. 1 schematically shows the sectional view of an embodiment of the equipment of observing from the side that passes the thickness that is used to control the metallic coating on the metal band.
Fig. 2 schematically shows first embodiment by the equipment among Fig. 1 of front side view.
Fig. 3 schematically shows second embodiment by the equipment among Fig. 1 of front side view.
Fig. 4 schematically shows the 3rd embodiment by the equipment among Fig. 1 of front side view.
Fig. 5 shows the magnetic saturation state of the end that the most close band of wiping post is provided with.
Embodiment
The following description relates to equipment and method.Fig. 1 shows the equipment of the thickness that is used to control the metallic coating on the metal band 1.Band 1 is coated with melting metal layer by transmitting band continuously by the molten bath.Band transmits from the molten bath along predetermined conveying path x along delivery direction 3.Predetermined conveying path x basically the roller in immersing molten bath 2 and be arranged on wiping and stabilization element 4a, 4b after top roll between extend.Wiping and stabilization element 4a, 4b are suitable for wiping excessive molten metal and stable band 1 from band 1.Wiping and stabilization element 4a, 4b comprise: Wiping member, and it comprises the first phase winding 6a, the 6b that are used for first phase and is used for second mutually the second phase winding 7a, the 7b; Stabilizing member, it comprises stablizes winding 8a, 8b; And shared magnetic core 12a, 12b, described shared magnetic core comprises wiping and stability column 5a, 5b.Wiping and stabilization element 4a, 4b in the couple positioned opposite of band on substantially the same height.
Magnetic core 12a, 12b comprise back magnetic core component 9a, 9b and preceding magnetic core component, and have the cross section that is essentially T shape, and wherein, cross section comprises base portion and top.Base portion is made of preceding magnetic core component basically, and it comprises wiping and stability column 5a, 5b, and described top is made of the back magnetic core component basically.Described top is along the direction setting that is arranged essentially parallel to delivery direction, and extend towards the direction of band 1 from the edge, top described bottom.Stablize winding 8a, 8b around the base portion setting, and phase winding 6a, 6b, 7a, 7b are provided with around the top on each side of bottom.
Phase winding 6a, 6b, 7a, 7b have been supplied the alternating current (not shown), and produce alternating magnetic fields on band 1, promptly so-called shifting magnetic field.Described magnetic field comprises the current path I (not shown) in the coating, and along directive effect the power on coating relative with the delivery direction of band.Wiping member is according to linear motor or magnetic stirrer action, to obtain electromagnetic field.In this way, vertically wipe excessive coating material along band.
Stablize winding 8a, 8b and be supplied the galvanic current (not shown), stabilizing power is perpendicular to band 1 effect like this, because stability column 5a, 5b be suitable for overlapping with wiping post 5a, 5b, then stabilizing power can act on the band in the regional identical zone with from the interference appearance of wiping post.Certainly, can occur disturbing outside Wiping member and vibration, for example owing to the free length of band 1, promptly band 1 does not have the length of the operation supported.And these interference or vibration can be stable by described Wiping member.Wiping and stability column 5a, 5b are arranged on preset distance transfer path x a distance.Certain described distance is along with the current thickness of band 1 and the variation in thickness of coating.
Fig. 1 shows and is used for test strip 1 is arranged on band 1 with respect to transmitter 10a, the 10b of the position of its predetermined conveying path x each side.Transmitter 10a, 10b are provided with in the position of very close wiping and stabilization element 4a, 4b.Transmitter 10a, 10b are suitable for detecting and depend on the value of band with respect to the parameter of the position of predetermined conveying path x, thereby stabilizing member applies and the corresponding power of value that is detected to band 1.Signal from transmitter 10a, 10b is handled in the signal processor unit (not shown), and the sequence of control controlling flow in the current transformer (not shown) cross stablize winding 8a, 8b electric current to stablize band 1.
The operating device 11a, the 11b that are used to measure the thickness of layer are arranged on after wiping and stabilization element 4a, the 4b.
Fig. 2 schematically shows according to the first pair of wiping of Fig. 1 and first wiping in the stabilization element and stabilization element 4a, 4b how along the width setting of band.
Fig. 3 schematically shows second wiping in second pair of wiping and the stabilization element and stabilization element 17a, 17b how along the setting of turning up the soil perpendicular to the direction of delivery direction 3 and first pair of interval.
Fig. 4 schematically shows the 3rd wiping in the 3rd pair of wiping and the stabilization element and stabilization element 18a, 18b how along the setting of turning up the soil perpendicular to the direction of delivery direction 3 and second pair of interval.Fig. 4 also shows and how circuit 16 is set applies electric current I to produce further wiping force on coating with an edge 13a at band 1.Wiping force combines with electromagnetic force from Wiping member 4a, 4b, 4c by electric current I and produces.Electric current I flows out in another edge of band 13b.
Fig. 5 shows at least the magnetic permeability of parts 15a, the 15b at the most close band place of stability column 5a, 5b and controls by stable element, and described stable element comprises for example exterior loop.Magnetic permeability among corresponding parts 15a, the 15b is controlled based on the position of localized metal strip between wiping post 5a in a pair of wiping and stabilization element and the 5b.By the control magnetic permeability, prevent that metal band from moving towards one of them post because of magnetic force, on the contrary, band can keep placed in the middle between wiping post 5a, 5b.
The embodiment that the invention is not restricted to illustrate, certainly, those skilled in the art can make amendment in not breaking away from the scope of the present invention that limits as claims in many ways.For example, under the situation that three pairs of wipings and stabilization element 4a, 4b, 17a, 17b, 18a, 18b are provided with perpendicular to delivery direction 3, outermost two pairs of wipings and stabilization element 4a, 4b, 18a, 18b can along band and perpendicular to delivery direction in same straight line setting, and intermediary wiping and stabilization element 17a, 17b can be arranged on the front side and the rear side of described two pairs of outermost wipings and stabilization element.

Claims (21)

1. equipment that is used to control the thickness of the metallic coating on the elongated hardware (1), wherein said coating is suitable for by the molten bath (2) of element (1) being transmitted continuously molten metal coated, and described element is suitable for from the molten bath (2) and transmits along delivery direction (3) along predetermined conveying path (x), and wherein said equipment comprises at least one pair of electromagnetism Wiping member, on each side of described element, comprise a described Wiping member, from described element, to wipe excessive molten metal by apply the shifting magnetic field to described element, each Wiping member comprises wiping post (5a, 5b), and wherein said equipment comprises at least one pair of electromagnetism stabilizing member, on each side of described element, comprise a stabilizing member, be used for the position of stable element with respect to predetermined conveying path (x), described stabilizing member comprises stability column (5a, 5b), it is characterized in that described Wiping member has first phase winding and the second phase winding (6a, 6b, 7a, 7b), described Wiping member on the same side of described element and described stabilizing member are configured such that wiping post (5a, 5b) and stability column (5a, 5b) overlap.
2. equipment according to claim 1, wherein, described elongated hardware is metal band (1).
3. equipment according to claim 1 and 2, wherein, described Wiping member and described stabilizing member have shared magnetic core (12a, 12b).
4. according to each described equipment in the aforementioned claim, wherein, described Wiping member and described stabilizing member form integrated unit.
5. according to each described equipment in the aforementioned claim, wherein, described stabilizing member comprises stable winding (8a, 8b).
6. according to each described equipment among the claim 2-5, wherein, described stable winding (8a, 8b) is arranged between described band (1) and the described phase winding (6a, 6b, 7a, 7b).
7. according to each described equipment among the claim 2-6, wherein, described magnetic core (12) has the cross section that is essentially the T type, and comprise base portion and top, and described top is along the direction setting that is arranged essentially parallel to delivery direction (3), and described base portion extends towards the direction of band (1) from the edge, top.
8. equipment according to claim 7, wherein, described stable winding (8) is around the base portion setting, and described phase winding (6a, 6b, 7a, 7b) is provided with around the top on each side of base portion.
9. each described equipment in requiring according to aforesaid right, wherein, described equipment comprises second pair of Wiping member, described second pair of Wiping member is along the setting of turning up the soil at interval perpendicular to the direction of delivery direction (3) and first pair of Wiping member.
10. equipment according to claim 9, wherein, described equipment comprises the 3rd pair of Wiping member, described the 3rd pair of Wiping member is along the setting of turning up the soil at interval perpendicular to the direction of delivery direction (3) and first pair of Wiping member and second pair of Wiping member.
11. according to each described equipment among the claim 2-10, wherein, at least one is used for test strip (1) is set at very close at least one Wiping member about the transmitter (10a, 10b) of the position of its predetermined conveying path (x) position.
12. according to each described equipment among the claim 3-11, wherein, described equipment comprises stable element, described stable element is suitable for controlling the magnetic permeability in the part (15a, 15b) of the most close described band (1) of described stability column (5a, 5b).
13. equipment according to claim 12, wherein, described stable element comprises the exterior loop (14a, 14b) in the outside that is arranged on described stable winding (8a, 8b).
14. according to each described equipment among the claim 2-13, wherein, described equipment comprises circuit (16), it is suitable for applying electric current (I) at least one edge of described band (1) (13a, 13b), to produce additional wiping force.
15. equipment according to claim 14, wherein, described circuit (16) is suitable for the described electric current of gauge control (I) based on the coating that records after wiping.
And coated, wherein said method comprises 16. a method that is used to control the thickness of the metallic coating on the elongated hardware (1), wherein said coating are suitable for molten bath (2) by element being transmitted continuously molten metal:
Transmit described element (1) along delivery direction (3) along predetermined conveying path (x);
By applying the shifting magnetic field, from elongated hardware (1), to wipe excessive molten metal to described element (1) with still uncured metallic coating;
After wiping excessive molten metal, measure the thickness of coating, thereby with recording the electric current that difference between thickness and the desired thickness value controls flow to the phase winding (6a, 6b, 7a, 7b) that produces the shifting magnetic field;
By with act on described element on the regional identical zone of shifting magnetic field in apply to elongated hardware (1) and to stablize magnetic force to stablize the position of object with respect to predetermined conveying path (x).
17. method according to claim 16, wherein, described elongated hardware is metal band (1).
18. method according to claim 17 comprises:
By at least one transmitter (10a, 10b) that produces the parameter value of the magnitude of controlling described stable magnetic force, determine the position of described band (1) with respect to transfer path (x); And
The position that responds described band (1) applies described stable magnetic force to band.
19. according to each described method among the claim 17-18, wherein, by control at least the magnetic permeability in the part (15a, 15b) of the most close described band (1) of described stability column (5) make described band (1) stable.
20. method according to claim 19, wherein, the magnetic permeability in the part (15a, 15b) of the most close described band (1) of described stability column (5) is subjected to the control of exterior loop (14a, 14b) at least.
21. according to each described method among the claim 17-20, wherein, apply electric current, make described electric current and described shifting magnetic field produce wiping force together towards described molten bath (2) at least one edge of described band (1) (13a, 13b).
CN2006800187149A 2005-06-03 2006-05-24 A device and a method for coating an elongated metallic element with a layer of metal Expired - Fee Related CN101184861B (en)

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PCT/SE2006/050154 WO2006130102A1 (en) 2005-06-03 2006-05-24 A device and a method for coating an elongated metallic element with a layer of metal

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101665897B (en) * 2009-10-14 2011-01-05 天津市工大镀锌设备有限公司 Method and device for controlling thickness of steel wire hot-plating layer
CN111926278A (en) * 2020-09-24 2020-11-13 华中科技大学 Three-phase electromagnetic wiping device for strip-shaped workpiece and hot dip coating system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20071166A1 (en) * 2007-06-08 2008-12-09 Danieli Off Mecc METHOD AND DEVICE FOR THE CONTROL OF THE COATING THICKNESS OF A METAL METAL PRODUCT
ITMI20071164A1 (en) * 2007-06-08 2008-12-09 Danieli Off Mecc METHOD AND DEVICE FOR THE CONTROL OF THE COATING THICKNESS OF A METAL METAL PRODUCT
ITMI20071167A1 (en) * 2007-06-08 2008-12-09 Danieli Off Mecc METHOD AND DEVICE FOR THE CONTROL OF THE COATING THICKNESS OF A METAL METAL PRODUCT
AU2008362112B2 (en) * 2008-09-23 2014-12-18 L'institut Polytechnique De Grenoble Method and device for draining liquid coating metal at the output of a tempering metal coating tank
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Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950000007B1 (en) * 1991-06-25 1995-01-07 니홍고오깡가부시끼가이샤 Method of controlling coating weight on a hot-dipping steel strip
JP2601067B2 (en) * 1991-06-25 1997-04-16 日本鋼管株式会社 Hot-dip galvanized steel sheet
JP2556220B2 (en) * 1991-08-26 1996-11-20 日本鋼管株式会社 Hot-dip galvanized steel sheet
JPH06108220A (en) * 1992-09-29 1994-04-19 Nisshin Steel Co Ltd Method for controlling coating weight of hot-dip metal-coated steel strip by electromagnetic force
JPH07113157A (en) * 1993-10-14 1995-05-02 Nisshin Steel Co Ltd Method for preventing attraction of steel strip to electromagnet in plating adhesion control by electromagnetic force
JPH1060614A (en) * 1996-08-12 1998-03-03 Nisshin Steel Co Ltd Method for adjusting coating weight of plating utilizing electromagnetic force and apparatus therefor
JPH10273764A (en) * 1997-03-31 1998-10-13 Nippon Steel Corp Method for controlling coating weight of continuous hot dip metal coating line and device therefor
JPH10280117A (en) * 1997-04-04 1998-10-20 Nippon Steel Corp Control of coating weight of continuous hot dip metal coating line and apparatus therefor
SE0002889L (en) * 2000-08-11 2002-02-12 Abb Ab An apparatus and method for controlling the thickness of a coating on a metallic article
SE519928C2 (en) * 2000-08-11 2003-04-29 Abb Ab Apparatus and method for stabilizing an elongated metallic object
CN1258612C (en) * 2001-03-15 2006-06-07 杰富意钢铁株式会社 Production method of hot-dip metal strip and device therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101665897B (en) * 2009-10-14 2011-01-05 天津市工大镀锌设备有限公司 Method and device for controlling thickness of steel wire hot-plating layer
CN111926278A (en) * 2020-09-24 2020-11-13 华中科技大学 Three-phase electromagnetic wiping device for strip-shaped workpiece and hot dip coating system

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JP2008542542A (en) 2008-11-27
SE0501338L (en) 2006-12-04
EP1888804A1 (en) 2008-02-20
WO2006130102A1 (en) 2006-12-07
KR20080027816A (en) 2008-03-28
CN101184861B (en) 2010-05-19
EP1888804A4 (en) 2011-03-16

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