EP1284164B1 - Verfahren und Vorrichtung zum schmelzflüssigen Beschichten - Google Patents

Verfahren und Vorrichtung zum schmelzflüssigen Beschichten Download PDF

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Publication number
EP1284164B1
EP1284164B1 EP02017471A EP02017471A EP1284164B1 EP 1284164 B1 EP1284164 B1 EP 1284164B1 EP 02017471 A EP02017471 A EP 02017471A EP 02017471 A EP02017471 A EP 02017471A EP 1284164 B1 EP1284164 B1 EP 1284164B1
Authority
EP
European Patent Office
Prior art keywords
roller
coating
strip
jacket
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02017471A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1284164A1 (de
Inventor
Peter Dipl.-Ing. Knupfer
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.)
Inductotherm Coating Equipment SA
Original Assignee
Inductotherm Coating Equipment 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
Application filed by Inductotherm Coating Equipment SA filed Critical Inductotherm Coating Equipment SA
Publication of EP1284164A1 publication Critical patent/EP1284164A1/de
Application granted granted Critical
Publication of EP1284164B1 publication Critical patent/EP1284164B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0856—Reverse coating rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/10—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the liquid or other fluent material being supplied from inside the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work

Definitions

  • the invention relates to a method for applying a metallic or inorganic coating to a sheet-like material, wherein the material of the coating is applied in the molten state by means of at least one rotating roller, solidified by cooling and connects to the substrate, wherein at least on a portion of the jacket the roller is formed a film of the material of the coating and the substrate is guided at a distance relative to the roller, that in a contact region, the material of the coating continuously flows from the roller to the surface of the substrate and a device for applying a metallic or inorganic coating on a web-shaped material, wherein the material of the coating in the molten state by means of at least one rotatable roller can be applied, after which it solidifies by cooling and connects to the web-shaped Good, wherein at least on a portion of Mantels a film of the material of the coating can be produced and the web-like material is feasible at such a distance from the roller, that in a contact region, the material of the coating continuously flows from the shell of the roller on the web-shaped
  • Methods and apparatus for coating a substrate with molten material are used for surface treatment, environmental protection, or generally to combine properties of two materials - the substrate and the coating.
  • Coating with metallic or inorganic melts in contrast to the application of lacquers or plastic coatings, places entirely different demands on the process technology as well as on the materials used. Examples of application are the galvanizing or tinning of steel sheets, but also the coating of window glass with solar grade silicon.
  • Such dipping methods are characterized by a very high use amount of the material used for the coating in relation to the thickness of the desired coating, since the immersed components or strips must pass completely under the surface of the melt at least once.
  • the large quantities used resulted in large dimensions of the immersion baths, high energy and insulation costs and - especially when using high-quality materials for coating - a high capital commitment.
  • undesired deposits form, which can adversely affect the quality of the coating.
  • when coating metal sheets with dipping processes basically both sides are always coated. A single side coating or different coatings on both sides are not possible.
  • Document DE-A1-4412585 discloses an apparatus for applying a coating (lubricant) to a sheet-like material in a molten state.
  • the device has a rotatable roller with an inner cavity with openings through which the molten coating composition can be acted upon.
  • the object of the invention is to propose a further method and a device for molten coating, by means of which the size of the generic device can be significantly reduced.
  • this object is achieved according to the invention in that the liquid material of the coating is conveyed from an inner cavity of a roller through openings on the shell of the roller.
  • a roller of a device according to the invention has an inner cavity which can be acted upon by pressurized liquid material of the coating and is provided with openings for an escape of the liquid material from the cavity onto the casing.
  • the invention leads to structurally surprisingly simple solutions and compact designs. Also different coatings of both sides are possible.
  • the amount of material remaining in the system of the coating can advantageously - albeit with increased manufacturing costs - be reduced if the openings on the shell of the roller are connected individually via substantially radially extending channels with an axially extending inside the roller pressure line. By reducing the diameter of this pressure line and the channels, the void volume of the roller and thus the amount of material used is significantly reduced.
  • the invention then leads to a method which is particularly easy to handle when the roller is mounted in a stationary manner and the web-shaped material is moved past it in its longitudinal direction relative to the stationary roller. Moreover, if the web-like material is moved substantially vertically upward in the contact region, the acceleration due to gravity promotes the formation of a film of the material of the coating on the upper side of the roll.
  • a roller is movable in a direction having a component perpendicular to the surface of the web-shaped Guts, By adjusting the distance between the roller and substrate different flow properties of the material of the coating can be considered.
  • the coating can be very easily interrupted by removing the roller from the substrate and resumed at a later point by re-delivery. If the roller is movably mounted in its axial direction, the application point of the coating on the substrate can be varied without significant effort. In the case of a band, it is therefore possible to produce coatings with, for example, half the width of the band.
  • the invention is used particularly advantageously in the coating of metallic strips, in the coating with metals, or when the melting point of the coating is less than the melting point of the substrate.
  • a roller of the device according to the invention can be made heatable to prevent premature solidification of the material of the coating.
  • the shell of the roll can be actively heated over part of its circumference before entering the contact area from the outside.
  • the above-described formation of radial channels in the roller also allows a reduction of the external dimensions of the generic device by the arrangement of additional heating elements within the roller.
  • the substrate can be actively heated from the outside before entering the contact area and, if necessary, subjected to protective gas.
  • the flow of material from the shell of the roll to the surface of the substrate is then to be adjusted particularly well when, in the contact region, the directions of movement of the surface to be coated and of the shell of the roll are opposite to one another.
  • a collecting device in the direction of gravity below the roller, which captures the remaining material of the coating on the roller and allows recycling via a treatment in a circuit.
  • the openings leading to the surface of the roller are arranged in grooves in the casing, which run helically with constant pitch or perpendicular to the longitudinal axis of the roller circumferentially and equidistantly.
  • a uniform distribution of the material of the coating on the surface of the roller is achieved.
  • a device 1 according to FIG. 1 for double-sided coating of a web-shaped substrate 2 in the form of a steel strip with a metallic material, for example a zinc alloy, comprises two oppositely arranged devices 3 a and 3 b for respectively one-sided coating, between which the substrate 2 is continuous in one Direction 4 is guided vertically upwards. Before entering the device 1, the substrate 2 passes through an inductive heater 5.
  • the devices 3a and 3b each comprise a roller 6, a collecting device 7 arranged underneath, and a housing 8 comprising both.
  • the roller 6 dips into a bath 9 formed by the liquid material of the coating.
  • the devices 3a and 3b can be easily adapted to different properties of the substrate 2, the metallic liquid and the desired thickness of the coating , By increasing the distance between substrate 2 and roller 6 in the radial direction 18 also interruptions of the coating can be performed.

Landscapes

  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating With Molten Metal (AREA)
EP02017471A 2001-08-14 2002-08-05 Verfahren und Vorrichtung zum schmelzflüssigen Beschichten Expired - Lifetime EP1284164B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10139923A DE10139923A1 (de) 2001-08-14 2001-08-14 Verfahren und Vorrichtung zum schmelzflüssigen Beschichten
DE10139923 2001-08-14

Publications (2)

Publication Number Publication Date
EP1284164A1 EP1284164A1 (de) 2003-02-19
EP1284164B1 true EP1284164B1 (de) 2006-03-15

Family

ID=7695423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017471A Expired - Lifetime EP1284164B1 (de) 2001-08-14 2002-08-05 Verfahren und Vorrichtung zum schmelzflüssigen Beschichten

Country Status (4)

Country Link
EP (1) EP1284164B1 (es)
AT (1) ATE320319T1 (es)
DE (2) DE10139923A1 (es)
ES (1) ES2260364T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101362127B (zh) * 2007-08-10 2011-07-20 宝山钢铁股份有限公司 硅钢两辊式涂层机机架摆动装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101477949A (zh) * 2008-01-04 2009-07-08 陈科 硅片和其制造方法及装置
CN103094376A (zh) * 2011-11-01 2013-05-08 智盛全球股份有限公司 复合式太阳能电池的多晶硅基板及其太阳能电池
CN115478238A (zh) * 2022-08-29 2022-12-16 上海天阳钢管有限公司 一种光伏焊带加工用涂锡装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870737A (en) * 1957-01-22 1959-01-27 Westoak Machine Corp Equipment for oiling metal surfaces
JPS54155128A (en) * 1978-05-29 1979-12-06 Nippon Steel Corp Hot dipping apparatus
US4370356A (en) * 1981-05-20 1983-01-25 Integrated Technologies, Inc. Method of meniscus coating
FI89465C (fi) * 1991-12-20 1993-10-11 Raimo Karppinen Anordning foer spridning av flytande aemne
US5270079A (en) * 1992-12-18 1993-12-14 Specialty Coatings Systems, Inc. Methods of meniscus coating
DE4412585A1 (de) * 1993-04-20 1994-10-27 Jochen Eckardt Verfahren und Einrichtung zum Benetzen von Bändern, Streifen, Platinen oder dergleichen, insbesondere aus Metall
JPH08309250A (ja) * 1995-03-13 1996-11-26 Fujitsu Ltd 塗布剤の両面塗布方法及び両面塗布装置並びに両面乾燥方法及び両面乾燥装置
US5900273A (en) * 1996-01-19 1999-05-04 Micron Technology, Inc. Method for coating a substrate covered with a plurality of spacer members

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101362127B (zh) * 2007-08-10 2011-07-20 宝山钢铁股份有限公司 硅钢两辊式涂层机机架摆动装置

Also Published As

Publication number Publication date
DE10139923A1 (de) 2003-03-06
ATE320319T1 (de) 2006-04-15
EP1284164A1 (de) 2003-02-19
DE50206063D1 (de) 2006-05-11
ES2260364T3 (es) 2006-11-01

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