EP0842709A1 - Verfahren zum Beschichten von sich bewegenden metallurgischen Produkten mit einer organischen Beschichtung und Vorrichtung dafür - Google Patents

Verfahren zum Beschichten von sich bewegenden metallurgischen Produkten mit einer organischen Beschichtung und Vorrichtung dafür Download PDF

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Publication number
EP0842709A1
EP0842709A1 EP97402397A EP97402397A EP0842709A1 EP 0842709 A1 EP0842709 A1 EP 0842709A1 EP 97402397 A EP97402397 A EP 97402397A EP 97402397 A EP97402397 A EP 97402397A EP 0842709 A1 EP0842709 A1 EP 0842709A1
Authority
EP
European Patent Office
Prior art keywords
roller
organic material
coating
liquid
bath
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
EP97402397A
Other languages
English (en)
French (fr)
Other versions
EP0842709B1 (de
Inventor
Denis Clerc
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.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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 Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Publication of EP0842709A1 publication Critical patent/EP0842709A1/de
Application granted granted Critical
Publication of EP0842709B1 publication Critical patent/EP0842709B1/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
    • B05C1/0813—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 characterised by means for supplying liquid or other fluent material to the roller
    • 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
    • B05C1/0826—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 work being a web or sheets
    • B05C1/0834—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 work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • 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
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • 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

Definitions

  • the invention relates to the continuous application of a organic coating on a metallurgical product in scrolling, in particular the continuous coating of steel strips with resin.
  • the steel strips after being rolled, can then undergo various metallurgical treatments, such as continuous annealing and electrogalvanizing, followed a finishing surface treatment per application an organic coating made of resin.
  • the tank is continuously supplied with organic material liquid by means of a feed ramp plunging into the bath of said liquid organic material.
  • This feed generates air bubbles on the surface of the bath which are entrained with the liquid organic material on the rollers in rotation, then finally transferred to the moving strip, thus altering its appearance of area.
  • this partition used as an anti-bubble barrier only solves part of the problem posed by the transfer of the bubbles to the moving strip. Indeed the roller (s) whose lower part is submerged in the bath of liquid organic material generate by their rotation of air bubbles on the surface of the bath, which through the other rollers are going to be transferred to the running tape.
  • rollers placed above the bath surface of liquid organic material generate also air bubbles on the surface of the bath when drop on the surface of the bath of excess material organic liquid not adhering to said rollers.
  • the object of the invention is to propose a means preventing bubbles generated by rotating rollers and by the power rail to be transferred with the liquid organic material on the moving web and to alter its surface appearance.
  • the subject of the invention is a method continuous application of an organic coating on a metallurgical product running from a bath liquid organic material in a container and likely to contain air bubbles, transfer of said liquid organic material on the product being produced in a coating area, characterized in that to eliminate said air bubbles, we create in at least a bath area, located upstream of said area coating, an updraft in the liquid material so as to bring the bubbles contained in the bath to the near its surface and cause it to burst.
  • the flow of the supply rail 1 is between 50 and 60 l / min adapted to the type of resin used. This feeding in liquid organic material 3 in tray 2 generates air bubbles on the surface of the bath.
  • a roller called pick-up roller 4 the end of which lower is immersed in tray 2 containing the liquid organic material 3, transfers said material liquid organic on a roll called applicator roll 5, which in turn transfers the organic material liquid on the metallurgical product 7 in movement held by a holding roller 6.
  • the speed of scrolling of the metallurgical product 7 is understood by example between 60 and 80 m / min.
  • the rotation of the pick roller 4 generates the formation air bubbles when said roller attacks the surface of the bath. Some of these air bubbles can be driven with the rotation of said pick roller 4 and transferred with liquid organic material 3 to the applicator roller 5 then finally on the product metallurgical 7.
  • a roller called a mobile roller 8 is interposed between the feed ramp 1 and the roller taker 4. It is immersed in its lower part in the bath of liquid organic material 3 at about 2 cm from the surface and rotated in the opposite direction to that of pick-up roller 4 to create in the liquid bath 3 in front of the coating area an updraft of so as to bring the air bubbles contained in the bath near the surface. Ideally the speed of rotation of the movable roller 8 is low, so that the rotational movement in the bath does not generate new air bubbles.
  • the movable roller 8 has another advantage which is that of entraining the air bubbles adhering to its surface, which is no longer in contact with the material organic liquid 3 eventually burst.
  • the bath of liquid organic material in the vicinity of the pick-up roller 4 is free of air bubbles and allows thus obtaining a strip coated with organic material having a very good surface appearance.
  • An exemplary embodiment of the present invention uses a tank 2 shown diagrammatically in section, having vertical walls, namely an upstream wall x straight and an inclined downstream wall.
  • the length of the tank 2 is 2.30 m, its width 95 cm at the top and 75 cm at the bottom and, its depth of 13 cm.
  • the downstream wall is inclined there, in order to limit the disturbances in the liquid organic material bath 3.
  • the feed ramp 1 placed near the vertical wall x of tank 2 consists of a pipe horizontal with a length of 1.55 m and a diameter of 3 4 cm to which four oblique pipes are connected, or vertical verticals of 16 cm and 3 to 4 cm in diameter, spaced 40 cm apart, the ends of which 3 to 4 mm in diameter immerse in the material bath organic liquid 3.
  • the movable roller 8 consisting of a steel core coated with a 3 to 4 cm layer of rubber thick, 25 cm in diameter and 2 m long is immersed in the bath of liquid organic material 3 in its lower part to a depth of 2 cm.
  • the spacing between the pick roller 4, consisting of steel core coated with chromium, 25 cm in diameter and length of about 2 m, and the movable roller 8 is 5 cm.
  • the applicator roller 5 consisting of a core made of steel coated with a rubber layer with a diameter of 30 cm and about 2 m long, can be used up to a certain level of wear on the rubber, i.e. when the diameter of said roller reaches 25.5 cm.
  • the running speed of the metallurgical product 7 is 60 to 80 m / min. If we take 100 as the basis for this speed, the speed of the applicator roller 5 varies from 130 to 160% of the scrolling speed, the speed of the take-up roller 4 varies from 40 to 60% of the speed of scrolling and the speed of the movable roller 8 is 5 to 15% (typically 10%) of the frame rate.
  • Liquid organic materials 3 applied to metal strips 7 thanks to such an installation are for example very fluid resins whose viscosity dynamic is around 10 cP.
  • resin used there may be mentioned SOLPLEX, resin based on silica commonly used in the automotive industry and whose coating thickness is around 7 ⁇ m in wet layer.
  • the flow rate of the fuel rail pump varies between 50 to 60 l / min depending on the viscosity of the resin.
  • roller mobile 8 can be replaced by any other means a moving surface whose movement creates a current ascending within the organic material bath.

Landscapes

  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP97402397A 1996-11-13 1997-10-13 Verfahren zum Beschichten von sich bewegenden metallurgischen Produkten mit einer organischen Beschichtung und Vorrichtung dafür Expired - Lifetime EP0842709B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613772 1996-11-13
FR9613772A FR2755702B1 (fr) 1996-11-13 1996-11-13 Procede d'application en continu d'un revetement organique sur un produit metallurgique en defilement et dispositif pour sa mise en oeuvre

Publications (2)

Publication Number Publication Date
EP0842709A1 true EP0842709A1 (de) 1998-05-20
EP0842709B1 EP0842709B1 (de) 2002-03-27

Family

ID=9497539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402397A Expired - Lifetime EP0842709B1 (de) 1996-11-13 1997-10-13 Verfahren zum Beschichten von sich bewegenden metallurgischen Produkten mit einer organischen Beschichtung und Vorrichtung dafür

Country Status (8)

Country Link
US (1) US5935658A (de)
EP (1) EP0842709B1 (de)
JP (1) JPH10137651A (de)
AT (1) ATE214973T1 (de)
CA (1) CA2221124A1 (de)
DE (1) DE69711328T2 (de)
ES (1) ES2171861T3 (de)
FR (1) FR2755702B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108993821A (zh) * 2018-09-29 2018-12-14 宁波瑞成包装材料有限公司 多功能薄膜生产线预涂装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MXPA02005312A (es) * 1999-12-03 2002-12-11 Bhp Steel Jla Pty Ltd Metodo y aparato para revestir una superficie de substrato en movimiento.
WO2012019777A1 (en) * 2010-08-12 2012-02-16 Tata Steel Uk Limited Method for applying a paint system on a moving steel strip to form a coating, and steel strip thus produced
CN111889297A (zh) * 2020-07-13 2020-11-06 张家港骏马无纺布有限公司 一种无纺布涂布机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156494A (ja) * 1987-12-15 1989-06-20 Nippon Mining Co Ltd 電気メッキ方法及び装置
US5298141A (en) * 1991-05-23 1994-03-29 Nippon Paint Co., Ltd. Apparatus for measuring concentration of non-volatile ingredients

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2221780A (en) * 1939-03-10 1940-11-19 Collins & Aikman Corp Vat dyeing and apparatus therefor
GB1404616A (en) * 1972-11-27 1975-09-03 Wiggins Teape Research Dev Ltd Apparatus for applying a coating to a web of material
FR2341199A1 (fr) * 1976-02-11 1977-09-09 Commissariat Energie Atomique Procede et dispositif de formation et de depot sur un substrat de couches monomoleculaires de molecules amphiphiles
US4158333A (en) * 1978-05-01 1979-06-19 Anpa Research Institute Inking baffle for rotary newspaper presses
FR2477900A1 (fr) * 1980-03-14 1981-09-18 Heurtey Metallurgie Procede et dispositif de separation des atmospheres gazeuses dans des installations de traitement thermique sous atmosphere
US4349587A (en) * 1981-03-12 1982-09-14 Bell Telephone Laboratories, Incorporated Method for coating fiber waveguides
JPH0797669A (ja) * 1993-09-30 1995-04-11 Sumitomo Metal Ind Ltd 溶融金属めっき鋼板の製造方法と装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156494A (ja) * 1987-12-15 1989-06-20 Nippon Mining Co Ltd 電気メッキ方法及び装置
US5298141A (en) * 1991-05-23 1994-03-29 Nippon Paint Co., Ltd. Apparatus for measuring concentration of non-volatile ingredients

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 419 (C - 637) 18 September 1989 (1989-09-18) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108993821A (zh) * 2018-09-29 2018-12-14 宁波瑞成包装材料有限公司 多功能薄膜生产线预涂装置

Also Published As

Publication number Publication date
ES2171861T3 (es) 2002-09-16
ATE214973T1 (de) 2002-04-15
FR2755702A1 (fr) 1998-05-15
FR2755702B1 (fr) 1998-12-11
DE69711328T2 (de) 2002-09-19
CA2221124A1 (fr) 1998-05-13
JPH10137651A (ja) 1998-05-26
US5935658A (en) 1999-08-10
DE69711328D1 (de) 2002-05-02
EP0842709B1 (de) 2002-03-27

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