EP0692549A1 - Vorrichtung und Verfahren zum Kontrollieren der Beschichtungsgewicht eines metallüberzuges mittels Blasdüsen - Google Patents

Vorrichtung und Verfahren zum Kontrollieren der Beschichtungsgewicht eines metallüberzuges mittels Blasdüsen Download PDF

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Publication number
EP0692549A1
EP0692549A1 EP94110948A EP94110948A EP0692549A1 EP 0692549 A1 EP0692549 A1 EP 0692549A1 EP 94110948 A EP94110948 A EP 94110948A EP 94110948 A EP94110948 A EP 94110948A EP 0692549 A1 EP0692549 A1 EP 0692549A1
Authority
EP
European Patent Office
Prior art keywords
wiping
die
cam
coating
lip
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
EP94110948A
Other languages
English (en)
French (fr)
Other versions
EP0692549B1 (de
Inventor
Paul P. Fontaine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fontaine Engineering und Maschinen GmbH
Original Assignee
Fontaine Engineering und Maschinen GmbH
Unitas SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8216114&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0692549(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to DE69426357T priority Critical patent/DE69426357T2/de
Priority to ES94110948T priority patent/ES2152958T3/es
Priority to AT94110948T priority patent/ATE197822T1/de
Priority to PT94110948T priority patent/PT692549E/pt
Priority to EP94110948A priority patent/EP0692549B1/de
Application filed by Fontaine Engineering und Maschinen GmbH, Unitas SA filed Critical Fontaine Engineering und Maschinen GmbH
Publication of EP0692549A1 publication Critical patent/EP0692549A1/de
Publication of EP0692549B1 publication Critical patent/EP0692549B1/de
Application granted granted Critical
Priority to GR20010400201T priority patent/GR3035374T3/el
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14—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

Definitions

  • molten zinc is inherently heavier than molten aluminum so that the effects of gravity tend to be more pronounced and a lesser blast of wiping gas will, in most cases, be effective to remove more molten zinc coating material than aluminum coating material.
  • the amount of edge buildup is likely to be significantly less.
  • a new coating nozzle or wiping air die is usually necessary, requiring not only the changing of nozzles or wiping dies, a not inconsiderable job, but the maintenance of an inventory of different nozzles and dies which inventory is by no means inexpensive.
  • the cam shaft is preferably provided with a plurality of discreet cam patterns providing different contours to the lip openings in a predetermined time-related sequence when moved at a controlled rate by a motive means connected thereto.
  • the time sequence essentially is dependent not upon an outside sequence of events, but directly upon a preset contour of a cam arrangement which may be designed to correspond with outside events such as liquid level speed, strip length, temperature or any of a number of other parameters, but is nevertheless preset once made.
  • Figure 3 is a diagrammatic sketch showing the cam arrangement and drive arrangement from the front of the wiping die.
  • Figure 7 is a transverse cross section of an alternative embodiment of the invention in which the cam arrangement directly contacts the flexible lower lip section of the wiping die from outside the plenum chamber of the wiping die.
  • the stepping motor may be operated progressively to turn or rotate the cam shaft and apply different openings to the coating die orifices to adjust for continuously varying conditions. While for illustration the use of a cam shaft arrangement has been shown in which the contour of the die opening slot is relatively or differentially opened more at the ends of the die as the overall die slot is increased in opening width particularly to compensate for increasing edge buildup, it will be understood that the cam shaft arrangement of the invention can be made with a relative contour which will compensate for various other changes in coating conditions and changes depending upon the operation.
  • FIG. 11 is a front view of the coating die of Figure 11 showing the unobstructed die orifice 29 and clean appearance similar to Figure 10.
  • the wiping dies 97 and 99 are both provided with cam means 107 and 109 acting through push rod means 111 and 113 to bias the lower lips of the wiping dies 97 and 99 to provide a differential thickness curtain of gas to wipe the surface of the strip 87 in order to establish a desired thickness of coating upon such surface.
  • the wiping dies 97 and 99 are shown partially broken away to reveal the push rod means 111 and 113 extending vertically inside.
  • cam 180 o from the parallel series of cam surfaces, has a generally convex arrangement of cooperating cam surfaces which define, as shown, a convex shape, which, it will be understood, could also be concave and might more usually be concave in outline.
  • the cam arrangement shown in Figure 14 is designed especially for use with the dies shown in the previous figures where only either a push or adjustment rod bears directly upon the flexible lip which is ultimately moved by the cams or, alternatively, the cam surfaces bear directly upon the surface of the flexible lip of the coating die. It will be understood that various configurations and combinations of cams may be used together to obtain various arrangements of the cam surfaces and contours of the ultimate flexible die surfaces.
  • cam outlines may also be used.
  • a normal cam outline having a progressively increasing distance between the center of the cam shaft and the edge of the cam surface from one portion to another is shown in Figure 4.
  • Figure 17 Another possible arrangement is shown in Figure 17 in which instead of the maximum distance between the center of the cam shaft and the surface of the cam, i.e. the highest uniform section, being located at 180 o from the portion having the lowest uniform section, the distance of the cam surface from the center of the cam shaft instead increases from the minimum distance steadily as the cam turns until the maximum distance between the two points is found at a location of about 300 or more degrees about the cam shaft progressing in one direction. The distance of the cam surface from the center of the cam shaft then decreases precipitiously to bring it back to the minimum or lowest uniform section.

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 Apparatus (AREA)
  • Coating With Molten Metal (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP94110948A 1994-07-14 1994-07-14 Vorrichtung und Verfahren zum Kontrollieren der Beschichtungsgewicht eines metallüberzuges mittels Blasdüsen Revoked EP0692549B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES94110948T ES2152958T3 (es) 1994-07-14 1994-07-14 Aparato y metodo para el control del peso de recubrimiento de metal usando cuchillas de gas.
AT94110948T ATE197822T1 (de) 1994-07-14 1994-07-14 Vorrichtung und verfahren zum kontrollieren der beschichtungsgewicht eines metallüberzuges mittels blasdüsen
PT94110948T PT692549E (pt) 1994-07-14 1994-07-14 Aparelho e metodo para o controlo do peso de revestimento metalico utilizando facas de gas
EP94110948A EP0692549B1 (de) 1994-07-14 1994-07-14 Vorrichtung und Verfahren zum Kontrollieren der Beschichtungsgewicht eines metallüberzuges mittels Blasdüsen
DE69426357T DE69426357T2 (de) 1994-07-14 1994-07-14 Vorrichtung und Verfahren zum Kontrollieren der Beschichtungsgewicht eines metallüberzuges mittels Blasdüsen
GR20010400201T GR3035374T3 (en) 1994-07-14 2001-02-06 Apparatus and method for control of metallic coating-weight by the use of gas knives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94110948A EP0692549B1 (de) 1994-07-14 1994-07-14 Vorrichtung und Verfahren zum Kontrollieren der Beschichtungsgewicht eines metallüberzuges mittels Blasdüsen

Publications (2)

Publication Number Publication Date
EP0692549A1 true EP0692549A1 (de) 1996-01-17
EP0692549B1 EP0692549B1 (de) 2000-11-29

Family

ID=8216114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110948A Revoked EP0692549B1 (de) 1994-07-14 1994-07-14 Vorrichtung und Verfahren zum Kontrollieren der Beschichtungsgewicht eines metallüberzuges mittels Blasdüsen

Country Status (6)

Country Link
EP (1) EP0692549B1 (de)
AT (1) ATE197822T1 (de)
DE (1) DE69426357T2 (de)
ES (1) ES2152958T3 (de)
GR (1) GR3035374T3 (de)
PT (1) PT692549E (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19881989B4 (de) * 1997-01-22 2009-05-14 Industrial Automation Services Pty.Ltd. Luftmessermündungsanordnung zum Betrieb in einer Luftmesseranordnung und Luftmesseranordnung
CN104911524A (zh) * 2015-07-10 2015-09-16 魏守军 一种热镀锌板生产用气刀在线调整方法及气刀刀体
EP3587105A1 (de) 2006-10-30 2020-01-01 ArcelorMittal Beschichtete stahlbänder, verfahren zur herstellung davon, verfahren zur verwendung davon, daraus hergestellte stanzzuschnitte, daraus hergestellte gestanzte produkte und erzeugnisse, die solch ein gestanztes produkt enthalten
CN115478240A (zh) * 2022-08-30 2022-12-16 武汉钢铁有限公司 一种气刀
EP4267779B1 (de) * 2020-12-22 2024-09-04 Tata Steel Nederland Technology B.V. Mehrstrahlluftmesser zur kontrolle der schichtdicke von metallbeschichtungen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090313A1 (de) * 1970-05-27 1972-01-14 Italsider Spa
FR2136041A5 (de) * 1971-04-15 1972-12-22 Demag Ag
JPH0421752A (ja) * 1990-05-16 1992-01-24 Kawasaki Steel Corp 溶融亜鉛めっき用の可変噴射口型ワイピングノズル
JPH0559514A (ja) * 1991-08-30 1993-03-09 Nisshin Steel Co Ltd 連続溶融めつきにおける吹拭ノズル
EP0566497A1 (de) * 1992-04-17 1993-10-20 Clecim Düsenmesser zur Steuerung der Beschichtungsdicke eines Metallüberzugs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090313A1 (de) * 1970-05-27 1972-01-14 Italsider Spa
FR2136041A5 (de) * 1971-04-15 1972-12-22 Demag Ag
JPH0421752A (ja) * 1990-05-16 1992-01-24 Kawasaki Steel Corp 溶融亜鉛めっき用の可変噴射口型ワイピングノズル
JPH0559514A (ja) * 1991-08-30 1993-03-09 Nisshin Steel Co Ltd 連続溶融めつきにおける吹拭ノズル
EP0566497A1 (de) * 1992-04-17 1993-10-20 Clecim Düsenmesser zur Steuerung der Beschichtungsdicke eines Metallüberzugs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 16, no. 180 (C - 0935) 30 April 1992 (1992-04-30) *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 373 (C - 1083) 14 July 1993 (1993-07-14) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19881989B4 (de) * 1997-01-22 2009-05-14 Industrial Automation Services Pty.Ltd. Luftmessermündungsanordnung zum Betrieb in einer Luftmesseranordnung und Luftmesseranordnung
EP3587105A1 (de) 2006-10-30 2020-01-01 ArcelorMittal Beschichtete stahlbänder, verfahren zur herstellung davon, verfahren zur verwendung davon, daraus hergestellte stanzzuschnitte, daraus hergestellte gestanzte produkte und erzeugnisse, die solch ein gestanztes produkt enthalten
US10961602B2 (en) 2006-10-30 2021-03-30 Arcelormittal Coated steel strips, coated stamped products and methods
US11041226B2 (en) 2006-10-30 2021-06-22 Arcelormittal Coated steel strips, coated stamped products and methods
US11326227B2 (en) 2006-10-30 2022-05-10 Arcelormittal Coated steel strips, coated stamped products and methods
EP3587105B1 (de) 2006-10-30 2022-09-21 ArcelorMittal Beschichtete stahlbänder, verfahren zur herstellung davon, verfahren zur verwendung davon, daraus hergestellte stanzzuschnitte, daraus hergestellte gestanzte produkte und erzeugnisse, die solch ein gestanztes produkt enthalten
US11939643B2 (en) 2006-10-30 2024-03-26 Arcelormittal Coated steel strips, coated stamped products and methods
US12012640B2 (en) 2006-10-30 2024-06-18 Arcelormittal Method of forming a hot stamped coated steel product
CN104911524A (zh) * 2015-07-10 2015-09-16 魏守军 一种热镀锌板生产用气刀在线调整方法及气刀刀体
EP4267779B1 (de) * 2020-12-22 2024-09-04 Tata Steel Nederland Technology B.V. Mehrstrahlluftmesser zur kontrolle der schichtdicke von metallbeschichtungen
CN115478240A (zh) * 2022-08-30 2022-12-16 武汉钢铁有限公司 一种气刀

Also Published As

Publication number Publication date
ATE197822T1 (de) 2000-12-15
ES2152958T3 (es) 2001-02-16
EP0692549B1 (de) 2000-11-29
GR3035374T3 (en) 2001-05-31
DE69426357D1 (de) 2001-01-04
DE69426357T2 (de) 2001-04-05
PT692549E (pt) 2001-05-31

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