EP1857565A1 - Coating apparatus for metal sheet and method for manufacturing one-sided partially coated metal sheet - Google Patents
Coating apparatus for metal sheet and method for manufacturing one-sided partially coated metal sheet Download PDFInfo
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- EP1857565A1 EP1857565A1 EP07009199A EP07009199A EP1857565A1 EP 1857565 A1 EP1857565 A1 EP 1857565A1 EP 07009199 A EP07009199 A EP 07009199A EP 07009199 A EP07009199 A EP 07009199A EP 1857565 A1 EP1857565 A1 EP 1857565A1
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- EP
- European Patent Office
- Prior art keywords
- coating
- roll
- strip
- roller
- metal strip
- 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.)
- Ceased
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- 238000000576 coating method Methods 0.000 title claims abstract description 93
- 239000011248 coating agent Substances 0.000 title claims abstract description 92
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000000155 melt Substances 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 14
- 239000010410 layer Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005499 meniscus Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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
Definitions
- the present invention relates to a coating system for metal strips and a method for producing single-coated metal strips by means of the coating system.
- the steel strips are provided from a melt supply with a coating of zinc, a zinc alloy, aluminum or an aluminum alloy for the production of corrosion-resistant surfaces.
- the metal strip is not immersed in the melt bath, but guided over the melt surface along.
- the strip is placed immediately above the melt surface in a position where the surface tension and wetting properties of the molten coating metal cause the formation of a meniscus at the surface of the melt bath. Through the meniscus the band is in direct contact with the melt bath and is continuously coated only on one side of the band.
- the invention has the object of developing a coating system for single-coated metal strips.
- the invention includes a coating line for metal strips, consisting of a melt bath with liquid coating material, a coating roll and a tape guide for the running over the coating roll metal strip, wherein the coating roll dives only partially in the melt bath and at least the surface of the coating roll consists of a material that is not wettable by the liquid coating material.
- the invention is based on the consideration that the metal strip to be coated is guided tightly over the coating roller.
- liquid tin or a tin alloy is applied to a metal strip of copper or a copper alloy as the metal layer. excess Tin is stripped off to set the desired layer thickness.
- the metal strip to be coated is deflected around the coating roll and tensioned with the required strip tension so as to ensure that no liquid coating material reaches the rear side of the metal strip.
- the surface of the coating roll consists of a material which is not wetted by the coating material.
- the molten metal-repellent surfaces or else solid material are suitable.
- Gray iron or ceramics for example aluminum oxide, silicon nitride or graphite, are particularly suitable in connection with tin-containing coating materials.
- the particular advantage is that a one-sided coating on metal strips can be produced reliably and with little effort.
- the excess coating material is deliberately removed in order to set the desired layer thicknesses.
- the coating system according to the invention is suitable for producing tin-containing surface layers on strip material made of copper or copper alloys.
- the coating roll has a uniform cylindrical shape along its entire length.
- the strip material lies on the entire surface of the roll surface.
- the surface of the coating roller may be concave or tapered towards the center of the roll.
- the edge regions of the metal strip are pressed more strongly onto the roll surface, whereby an additional seal against the melt is achieved at the strip edges.
- a conical shape acts, in which the radius of the coating roll as seen from both ends decreases continuously towards the middle of the roll.
- the concave coating roll substantially only those areas have a curvature of the roll surface at which the coating roll comes into contact with the strip edges.
- the surface of the coating roll is slightly convexly curved only in the region of the resting strip edges and has a cylindrical shape in the further course in the direction of the roll center.
- the coating roll has a slightly smaller radius towards the center of the roll than the roll outer edge.
- the roller surface is formed at the respective edges of the metal strip against a rest on the rest of the flat strip surface a slight curvature, which seals under tensile stress, the marginal areas particularly well against the melt. Penetration of liquid coating material into a gap formed between the coating roll and the strip material can thus be reliably prevented.
- the axis of the coating roller immersed in the melt bath may be arranged above the melt surface. As a result, the coating roller is only partially brought into contact with the melt.
- a stripping device downstream of the coating roll.
- the stripping device may be a stripping element and / or a blow-off nozzle.
- the coating material is usually applied in excess to the metal strip to be coated.
- tin-containing metal layers often have the desired final thicknesses of the coating well below the thickness of the originally applied material. Excess tin is stripped over several stages and set the layer thickness targeted.
- At least the coating roll can be arranged in a closed housing with protective gas in order to avoid oxide formation, in particular on the uncoated hinge side.
- FIG. 1 shows a side view of the coating installation 1.
- the coating roller 6 dives only partially into the tin bath 2.
- the metal strip 14 to be coated on one side is guided tightly against the coating roller 6 by deflection rollers 12 as belt guide with the required strip tension through the tin bath 2, in order to prevent unwanted penetration of the molten metal between metal strip 14 and coating roller 6.
- the individual process units are mounted on a support frame 10.
- the running direction L of the metal strip 14 is indicated by an arrow.
- the roller axis 8 of the coating roller 6 does not dip into the tin bath 2.
- the coating roller 6 is only partially brought into contact with the melt. Since with tin-containing metal layers the desired final thicknesses of the coating are well below the thickness of the originally applied material, excess tin is removed over two stages. In the strip running direction L, the layer thickness is adjusted for this purpose after the melt bath 2 with a stripping element 16 and a blow-off nozzle 18 in the coated metal strip 14.
- processing units such as a chemical or mechanical cleaning device of the strip surface before coating.
- process units can also follow, such as a furnace for the temperature treatment of the applied metal layer.
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- 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
Die vorliegende Erfindung betrifft eine Beschichtungsanlage für Metallbänder und ein Verfahren zur Herstellung einseitig beschichteter Metallbänder mittels der Beschichtungsanlage.The present invention relates to a coating system for metal strips and a method for producing single-coated metal strips by means of the coating system.
Bekannt ist, einseitig verzinnte Metallbänder durch Feuerverzinnung oder durch galvanische Verzinnung herzustellen.It is known to manufacture unilaterally tin-plated metal strips by hot-dip tinning or by galvanic tinning.
Aus der Patentschrift
Auch ist aus der Patentschrift
Der Erfindung liegt die Aufgabe zugrunde, eine Beschichtungsanlage für einseitig beschichtete Metallbänder weiterzubilden.The invention has the object of developing a coating system for single-coated metal strips.
Die Erfindung wird bezüglich einer Beschichtungsanlage durch die Merkmale des Anspruchs 1 und bezüglich eines Verfahrens zur Herstellung durch die Merkmale des Anspruchs 6 wiedergegeben. Die weiteren rückbezogenen Ansprüche betreffen vorteilhafte Aus- und Weiterbildungen der Erfindung.The invention is reproduced with respect to a coating plant by the features of
Die Erfindung schließt eine Beschichtungsanlage für Metallbänder ein, bestehend aus einem Schmelzebad mit flüssigem Beschichtungsmaterial, einer Beschichtungsrolle und einer Bandführung für das über die Beschichtungsrolle laufende Metallband, wobei die Beschichtungsrolle nur zum Teil in das Schmelzebad eintaucht und zumindest die Oberfläche der Beschichtungsrolle aus einem Material besteht, das vom flüssigen Beschichtungsmaterial nicht benetzbar ist.The invention includes a coating line for metal strips, consisting of a melt bath with liquid coating material, a coating roll and a tape guide for the running over the coating roll metal strip, wherein the coating roll dives only partially in the melt bath and at least the surface of the coating roll consists of a material that is not wettable by the liquid coating material.
Die Erfindung geht dabei von der Überlegung aus, dass das zu beschichtende Metallband eng anliegend über die Beschichtungsrolle geführt wird. Insbesondere wird als Metallschicht beispielsweise flüssiges Zinn oder eine Zinnlegierung auf ein Metallband aus Kupfer oder einer Kupferlegierung aufgebracht. Überschüssiges Zinn wird zur Einstellung der gewünschten Schichtdicke abgestreift.The invention is based on the consideration that the metal strip to be coated is guided tightly over the coating roller. In particular, for example, liquid tin or a tin alloy is applied to a metal strip of copper or a copper alloy as the metal layer. excess Tin is stripped off to set the desired layer thickness.
Das zu beschichtende Metallband wird um die Beschichtungsrolle umgelenkt und mit dem erforderlichen Bandzug so gespannt, damit sichergestellt wird, dass kein flüssiges Beschichtungsmaterial auf die Rückseite des Metallbandes gelangt.The metal strip to be coated is deflected around the coating roll and tensioned with the required strip tension so as to ensure that no liquid coating material reaches the rear side of the metal strip.
Bei der einseitigen Verzinnung mit einer in das Schmelzebad eintauchenden Beschichtungsrolle ist es besonders wichtig, dass kein Beschichtungsmaterial an der Oberfläche der Rolle anhaftet. Dazu besteht zumindest die Oberfläche der Beschichtungsrolle aus einem Material, das vom Beschichtungsmaterial nicht benetzt wird. Es eignen sich entweder die Metallschmelze abweisende Oberflächen oder auch Vollmaterial. Insbesondere im Zusammenhang mit zinnhaltigen Beschichtungsmaterialien kommen Grauguss oder Keramiken in Betracht, beispielsweise Aluminiumoxid, Siliziumnitrid oder Graphit.In one-sided tinning with a coating roll dipping into the melt bath, it is particularly important that no coating material adhere to the surface of the roll. For this purpose, at least the surface of the coating roll consists of a material which is not wetted by the coating material. Either the molten metal-repellent surfaces or else solid material are suitable. Gray iron or ceramics, for example aluminum oxide, silicon nitride or graphite, are particularly suitable in connection with tin-containing coating materials.
Der besondere Vorteil besteht darin, dass eine einseitige Beschichtung auf Metallbändern zuverlässig und mit geringem Aufwand hergestellt werden kann. Das Metallband tritt in den Bereichen, in denen die Beschichtung aufgebracht wird, rückseitig mit der Beschichtungsrolle in Kontakt, wodurch weitere Vorkehrungen zum Schutz der Bandrückseite nicht mehr nötig sind. Je nach Prozessführung wird das überschüssige Beschichtungsmaterial gezielt entfernt, um die gewünschten Schichtdicken einzustellen. Insbesondere eignet sich die erfindungsgemäße Beschichtungsanlage zur Herstellung von zinnhaltigen Oberflächenschichten auf Bandmaterial aus Kupfer oder Kupferlegierungen.The particular advantage is that a one-sided coating on metal strips can be produced reliably and with little effort. The metal strip in the areas where the coating is applied, the back of the coating roller in contact, making further precautions to protect the back of the belt are no longer necessary. Depending on the process control, the excess coating material is deliberately removed in order to set the desired layer thicknesses. In particular, the coating system according to the invention is suitable for producing tin-containing surface layers on strip material made of copper or copper alloys.
In der einfachsten Form hat die Beschichtungsrolle über die ganze Länge eine gleichmäßige zylindrische Form. Bei einer zylindrischen Form liegt das Bandmaterial vollflächig auf der Rollenoberfläche an.In its simplest form, the coating roll has a uniform cylindrical shape along its entire length. In a cylindrical shape, the strip material lies on the entire surface of the roll surface.
In vorteilhafter Ausgestaltung der Erfindung kann die Oberfläche der Beschichtungsrolle zur Rollenmitte hin konkav oder konisch geformt sein. Bei konkaver Krümmung werden die Randbereiche des Metallbandes stärker auf die Rollenoberfläche gedrückt, wodurch gegenüber der Schmelze eine zusätzliche Abdichtung an den Bandkanten erzielt wird. Ebenso wirkt eine konische Form, bei welcher der Radius der Beschichtungsrolle von beiden Enden aus gesehen zur Rollenmitte hin kontinuierlich abnimmt. Bei einer besonderen Form der konkaven Beschichtungsrolle weisen im Wesentlichen nur diejenigen Bereiche eine Krümmung der Rollenoberfläche auf, an denen die Beschichtungsrolle mit den Bandkanten in Berührung kommt. Mit anderen Worten, die Oberfläche der Beschichtungsrolle ist nur im Bereich der aufliegenden Bandkanten leicht konvex gekrümmt und weist im weiteren Verlauf in Richtung der Rollenmitte eine zylindrische Form auf. Die Beschichtungsrolle hat also zur Rollenmitte hin einen etwas kleineren Radius als der Rollenaußenrand. Durch diese besondere Ausgestaltung der Rollenoberfläche entsteht an den jeweiligen Kanten des Metallbandes gegenüber einer im übrigen eben aufliegenden Bandoberfläche eine geringfügige Aufwölbung, die unter Zugbeanspruchung die randseitigen Bereiche besonders gut gegenüber der Schmelze abdichtet. Ein Eindringen von flüssigem Beschichtungsmaterial in einen sich zwischen der Beschichtungsrolle und dem Bandmaterial bildenden Spalt kann so zuverlässig verhindert werden.In an advantageous embodiment of the invention, the surface of the coating roller may be concave or tapered towards the center of the roll. At concave Curvature, the edge regions of the metal strip are pressed more strongly onto the roll surface, whereby an additional seal against the melt is achieved at the strip edges. Likewise, a conical shape acts, in which the radius of the coating roll as seen from both ends decreases continuously towards the middle of the roll. In a particular form of the concave coating roll substantially only those areas have a curvature of the roll surface at which the coating roll comes into contact with the strip edges. In other words, the surface of the coating roll is slightly convexly curved only in the region of the resting strip edges and has a cylindrical shape in the further course in the direction of the roll center. Thus, the coating roll has a slightly smaller radius towards the center of the roll than the roll outer edge. By this particular embodiment of the roller surface is formed at the respective edges of the metal strip against a rest on the rest of the flat strip surface a slight curvature, which seals under tensile stress, the marginal areas particularly well against the melt. Penetration of liquid coating material into a gap formed between the coating roll and the strip material can thus be reliably prevented.
In bevorzugter Ausgestaltung kann die Achse der in das Schmelzebad eintauchenden Beschichtungsrolle über der Schmelzebadoberfläche angeordnet sein. Hierdurch wird die Beschichtungsrolle nur partiell mit der Schmelze in Kontakt gebracht.In a preferred embodiment, the axis of the coating roller immersed in the melt bath may be arranged above the melt surface. As a result, the coating roller is only partially brought into contact with the melt.
Vorteilhafterweise kann, in Bandlaufrichtung der Beschichtungsrolle nachgeordnet, eine Abstreifeinrichtung angeordnet sein. Dabei kann die Abstreifeinrichtung ein Abstreifelement und/oder eine Abblasdüse sein. Über den Beschichtungsvorgang wird das Beschichtungsmaterial üblicherweise im Überschuss auf das zu beschichtende Metallband aufgebracht. Insbesondere liegen oft bei zinnhaltigen Metallschichten die gewünschten Enddicken der Beschichtung deutlich unter der Dicke des ursprünglich aufgebrachten Materials. Überschüssiges Zinn wird so über mehrere Stufen abgestreift und die Schichtdicke gezielt eingestellt.Advantageously, downstream of the coating roll, a stripping device can be arranged downstream of the coating roll. In this case, the stripping device may be a stripping element and / or a blow-off nozzle. About the coating process, the coating material is usually applied in excess to the metal strip to be coated. In particular, tin-containing metal layers often have the desired final thicknesses of the coating well below the thickness of the originally applied material. Excess tin is stripped over several stages and set the layer thickness targeted.
Vorteilhafterweise kann zumindest die Beschichtungsrolle in einem geschlossenen Gehäuse mit Schutzgas angeordnet sein, um eine Oxidbildung, insbesondere auf der nicht beschichteten Bandseite zu vermeiden.Advantageously, at least the coating roll can be arranged in a closed housing with protective gas in order to avoid oxide formation, in particular on the uncoated hinge side.
Ein weiterer Aspekt der Erfindung schließt bezüglich des Verfahrens zur Herstellung einseitig beschichteter Metallbänder mittels der erfindungsgemäßen Beschichtungsanlage folgende Schritte ein:
- ein Metallband wird über eine Beschichtungsrolle geführt,
- auf dem Metallband wird auf der der Beschichtungsrolle gegenüber liegenden Oberfläche eine Beschichtung aufgebracht, und
- das überschüssige Beschichtungsmaterial wird bis zur gewünschten Schichtdicke entfernt, bevor oder nachdem sich das Metallband von der Oberfläche der Beschichtungsrolle abhebt.
- a metal strip is passed over a coating roll,
- on the metal strip, a coating is applied to the coating roll surface opposite, and
- the excess coating material is removed to the desired layer thickness before or after the metal strip lifts off the surface of the coating roll.
Weitere Vorteile und Ausgestaltungen der Erfindung werden anhand der schematischen Zeichnungen näher erläutert.Further advantages and embodiments of the invention will be explained in more detail with reference to the schematic drawings.
- Fig. 1 eine Vorderansicht einer Beschichtungsanlage mit Schmelzebad, undFig. 1 is a front view of a coating plant with melt bath, and
- Fig. 2 eine Seitenansicht der Beschichtungsanlage gemäß Fig. 1.FIG. 2 shows a side view of the coating installation according to FIG. 1. FIG.
Einander entsprechende Teile sind in allen Figuren mit denselben Bezugszeichen versehen.Corresponding parts are provided in all figures with the same reference numerals.
In Fig. 1 ist eine Beschichtungsanlage 1 mit einem Zinnbad 2 dargestellt, das sich in einem geheizten Schmelzebehälter mit Isolierung 4 befindet. Die einseitige Verzinnung wird mit einer in das Zinnbad 2 eintauchenden Beschichtungsrolle 6 durchgeführt. Diese besteht aus keramischem Vollmaterial, bei dem kein Beschichtungsmaterial an der Oberfläche der Beschichtungsrolle 2 anhaftet. Fig. 2 zeigt eine Seitenansicht der Beschichtungsanlage 1.In Fig. 1, a
Die Beschichtungsrolle 6 taucht nur zum Teil in das Zinnbad 2 ein. Dabei wird das einseitig zu beschichtende Metallband 14 durch Umlenkrollen 12 als Bandführung mit dem erforderlichen Bandzug eng an die Beschichtungsrolle 6 anliegend durch das Zinnbad 2 geführt, um ein ungewolltes Eindringen der Metallschmelze zwischen Metallband 14 und Beschichtungsrolle 6 zu vermeiden. Die einzelnen Prozesseinheiten sind an ein Tragegerüst 10 montiert. Die Laufrichtung L des Metallbandes 14 ist jeweils durch einen Pfeil gekennzeichnet.The
Bei der in den Fig. 1 und 2 dargestellten Beschichtungsanlage 1 taucht die Rollenachse 8 der Beschichtungsrolle 6 nicht in das Zinnbad 2 ein. Hierdurch wird die Beschichtungsrolle 6 nur partiell mit der Schmelze in Kontakt gebracht. Da bei zinnhaltigen Metallschichten die gewünschten Enddicken der Beschichtung deutlich unter der Dicke des ursprünglich aufgebrachten Materials liegt, wird überschüssiges Zinn über zwei Stufen entfernt. In Bandlaufrichtung L wird hierzu nach dem Schmelzebad 2 mit einem Abstreifelement 16 und einer Abblasdüse 18 bei dem beschichteten Metallband 14 die Schichtdicke eingestellt.In the case of the
Es können weitere Prozesseinheiten vorgeschaltet sein, wie beispielsweise eine chemische oder mechanische Reinigungseinrichtung der Bandoberfläche vor der Beschichtung. Ebenso können weitere Prozesseinheiten auch nachfolgen, wie beispielsweise ein Ofen zur Temperaturbehandlung der aufgebrachten Metallschicht.It may be preceded by further processing units, such as a chemical or mechanical cleaning device of the strip surface before coating. Likewise, other process units can also follow, such as a furnace for the temperature treatment of the applied metal layer.
- 11
- Beschichtungsanlagecoating plant
- 22
- Schmelzebad / ZinnbadMelt bath / tin bath
- 44
- Schmelzebehälter mit IsolierungMelting container with insulation
- 66
- Beschichtungsrollecoating roll
- 88th
- Rollenachseroller axis
- 1010
- Tragegerüstsupporting framework
- 1212
- Bandführung / UmlenkrollenTape guide / pulleys
- 1414
- Metallbandmetal band
- 1616
- Abstreifelementstripping element
- 1818
- AbblasdüseBlow Off
- LL
- Laufrichtungdirection
Claims (6)
dadurch gekennzeichnet, dass,
die Beschichtungsrolle (6) nur zum Teil in das Schmelzebad (2) eintaucht und zumindest die Oberfläche der Beschichtungsrolle (6) aus einem Material besteht, das vom flüssigen Beschichtungsmaterial nicht benetzbar ist.Coating installation (1) for metal strips, comprising a melt bath (2) with liquid coating material, a coating roll (6) and a strip guide (12) for the metal strip (14) running over the coating roll (6),
characterized in that
the coating roll (6) only partially immersed in the melt bath (2) and at least the surface of the coating roll (6) consists of a material which is not wettable by the liquid coating material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102006023283A DE102006023283B3 (en) | 2006-05-18 | 2006-05-18 | Coating arrangement for metal strips comprises a coating roller only partially immersed in a molten bath |
Publications (1)
Publication Number | Publication Date |
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EP1857565A1 true EP1857565A1 (en) | 2007-11-21 |
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EP07009199A Ceased EP1857565A1 (en) | 2006-05-18 | 2007-05-08 | Coating apparatus for metal sheet and method for manufacturing one-sided partially coated metal sheet |
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US (1) | US20080020144A1 (en) |
EP (1) | EP1857565A1 (en) |
DE (1) | DE102006023283B3 (en) |
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WO2013090797A1 (en) | 2011-12-14 | 2013-06-20 | Visa International Service Association | Online account access control by mobile device |
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Citations (11)
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---|---|---|---|---|
DE2716198A1 (en) | 1976-04-15 | 1977-11-03 | Centre Rech Metallurgique | PROCESS FOR CONTINUOUS GALVANIC PLATING OF METAL SHEETS |
JPS5511171A (en) | 1978-07-10 | 1980-01-25 | Sumitomo Metal Ind Ltd | Fused zinc one side plating apparatus of steel belt |
JPS5547374A (en) * | 1978-09-28 | 1980-04-03 | Sumitomo Metal Ind Ltd | Plating method for single side with molten zinc |
JPS5579861A (en) | 1978-12-14 | 1980-06-16 | Kawasaki Steel Corp | One-side galvanizing apparatus |
JPS55138068A (en) * | 1979-04-17 | 1980-10-28 | Nippon Steel Corp | Guide roller in one side galvanizing equipment |
DE3045403A1 (en) * | 1979-12-05 | 1981-06-25 | Centre de Recherches Métallurgiques-Centrum voor Research in de Metallurgie-Association sans but lucratif-Vereniging zonder winstoogmerk, Bruxelles | METHOD FOR CONTINUOUSLY COATING METAL SHEETS |
JPS57174441A (en) * | 1981-04-20 | 1982-10-27 | Sumitomo Metal Ind Ltd | One-side hot dipping apparatus for cold rolled steel plate |
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JPH06346208A (en) * | 1993-06-04 | 1994-12-20 | Hitachi Ltd | Hot-dip metal coating device |
JP2000204459A (en) * | 1999-01-08 | 2000-07-25 | Hitachi Ltd | Continuous hot-dipping device |
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JPS54114439A (en) * | 1978-02-25 | 1979-09-06 | Nippon Steel Corp | High temperature atomosphere roll |
DE3009590B1 (en) * | 1980-03-13 | 1981-03-12 | Mannesmann Demag Ag, 4100 Duisburg | Method and device for one-sided coating of continuous strip |
JPS5925966A (en) * | 1982-08-03 | 1984-02-10 | Nippon Steel Corp | Material for equipment in galvanizing bath |
JPS6029457A (en) * | 1983-07-29 | 1985-02-14 | Nippon Steel Corp | Member with high corrosion resistance immersed in hot galvanizing bath |
US5571328A (en) * | 1994-04-06 | 1996-11-05 | National Steel Corporation | Bearing support for submerged rolls in hot dip coating operation |
-
2006
- 2006-05-18 DE DE102006023283A patent/DE102006023283B3/en not_active Expired - Fee Related
-
2007
- 2007-04-25 US US11/789,908 patent/US20080020144A1/en not_active Abandoned
- 2007-05-08 EP EP07009199A patent/EP1857565A1/en not_active Ceased
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DE2712003C2 (en) | 1976-03-18 | 1984-03-29 | Armco Steel Corp., Middletown, Ohio | Process for the production of a ferrous metal strip coated only on one side and device for carrying out this process |
DE2716198A1 (en) | 1976-04-15 | 1977-11-03 | Centre Rech Metallurgique | PROCESS FOR CONTINUOUS GALVANIC PLATING OF METAL SHEETS |
JPS5511171A (en) | 1978-07-10 | 1980-01-25 | Sumitomo Metal Ind Ltd | Fused zinc one side plating apparatus of steel belt |
JPS5547374A (en) * | 1978-09-28 | 1980-04-03 | Sumitomo Metal Ind Ltd | Plating method for single side with molten zinc |
JPS5579861A (en) | 1978-12-14 | 1980-06-16 | Kawasaki Steel Corp | One-side galvanizing apparatus |
DE2952573C2 (en) | 1978-12-30 | 1983-09-29 | Nippon Steel Corp., Tokyo | Method and apparatus for continuously coating one side of a steel strip with a molten metal |
JPS55138068A (en) * | 1979-04-17 | 1980-10-28 | Nippon Steel Corp | Guide roller in one side galvanizing equipment |
DE3045403A1 (en) * | 1979-12-05 | 1981-06-25 | Centre de Recherches Métallurgiques-Centrum voor Research in de Metallurgie-Association sans but lucratif-Vereniging zonder winstoogmerk, Bruxelles | METHOD FOR CONTINUOUSLY COATING METAL SHEETS |
JPS57174441A (en) * | 1981-04-20 | 1982-10-27 | Sumitomo Metal Ind Ltd | One-side hot dipping apparatus for cold rolled steel plate |
JPH06346208A (en) * | 1993-06-04 | 1994-12-20 | Hitachi Ltd | Hot-dip metal coating device |
JP2000204459A (en) * | 1999-01-08 | 2000-07-25 | Hitachi Ltd | Continuous hot-dipping device |
Also Published As
Publication number | Publication date |
---|---|
US20080020144A1 (en) | 2008-01-24 |
DE102006023283B3 (en) | 2007-11-08 |
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