EP0126057A3 - Thickness control of a metallic hot dip coating - Google Patents

Thickness control of a metallic hot dip coating Download PDF

Info

Publication number
EP0126057A3
EP0126057A3 EP84870062A EP84870062A EP0126057A3 EP 0126057 A3 EP0126057 A3 EP 0126057A3 EP 84870062 A EP84870062 A EP 84870062A EP 84870062 A EP84870062 A EP 84870062A EP 0126057 A3 EP0126057 A3 EP 0126057A3
Authority
EP
European Patent Office
Prior art keywords
coating
dip coating
hot dip
thickness control
gas stream
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.)
Withdrawn
Application number
EP84870062A
Other languages
German (de)
French (fr)
Other versions
EP0126057A2 (en
Inventor
Jacques Pelerin
Dimitri Coutsouradis
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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
Priority claimed from BE6/47825A external-priority patent/BE896703A/en
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of EP0126057A2 publication Critical patent/EP0126057A2/en
Publication of EP0126057A3 publication Critical patent/EP0126057A3/en
Withdrawn legal-status Critical Current

Links

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
    • C23C2/185—Tubes; Wires
    • 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

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 With Molten Metal (AREA)

Abstract

Procédé de réglage de l'épaisseur d'un revêtement métallique (1) déposé par immersion sur un produit tel qu'une bande ou un fil d'acier consistant à créer un courant gazeux (5) dirigé vers le bain de métal de revêtement (2) et de direction sensiblement parallèle à la direction du mouvement du produit revêtu, à faire circuler le produit à contre-courant dans ce courant gazeux et à ajuster le débit du courant gazeux, de façon à régler l'épaisseur du dit revêtement. Le courant gazeux traverse une tuyère de Venturi; il résulte de l'insufflation d'un flux gazeux (6) sous pression immédiate­ ment avant le col de la tuyère et transversalement à celle-ci. Method for adjusting the thickness of a coating metallic (1) deposited by immersion on a product such as strip or steel wire of creating a gas stream (5) directed to the coating and steering metal bath (2) substantially parallel to the direction of movement of the coated product, to circulate the product against the current in this gas stream and to adjust the flow rate of the gas stream, from so as to adjust the thickness of said coating. The stream gas passes through a Venturi nozzle; it results from insufflation of a gas flow (6) under immediate pressure before the neck of the nozzle and transversely to it.

EP84870062A 1983-05-09 1984-05-09 Thickness control of a metallic hot dip coating Withdrawn EP0126057A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6047825 1983-05-09
BE6/47825A BE896703A (en) 1983-05-09 1983-05-09 Thickness control of molten metal coatings - blowing gas stream onto coating, esp. during hot dip zinc coating of steel strip or wire

Publications (2)

Publication Number Publication Date
EP0126057A2 EP0126057A2 (en) 1984-11-21
EP0126057A3 true EP0126057A3 (en) 1985-03-06

Family

ID=3874926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84870062A Withdrawn EP0126057A3 (en) 1983-05-09 1984-05-09 Thickness control of a metallic hot dip coating

Country Status (1)

Country Link
EP (1) EP0126057A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608945B1 (en) * 1986-12-31 1990-01-12 Stein Heurtey IMPROVEMENTS IN OR RELATING TO SPIN-OUT SYSTEMS, BY GAS BLOWING, OF A METAL COATING DEPOSITED ON A STRIP
JP4451194B2 (en) 2004-04-13 2010-04-14 三菱日立製鉄機械株式会社 Liquid wiping device
RU169999U1 (en) * 2016-07-04 2017-04-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Магнитогорский государственный технический университет им. Г.И. Носова" PRODUCT COATING DEVICE

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2194565A (en) * 1938-03-05 1940-03-26 Kennecott Wire And Cable Compa Device and method for cleaning or drying wire and other strand material
FR873608A (en) * 1941-02-25 1942-07-15 Chausson Usines Sa Method and apparatus for tinning, zinc plating or sealing strips intended for the manufacture of tubular elements for automobile radiators or others
US2526731A (en) * 1945-02-13 1950-10-24 Armco Steel Corp Method of and apparatus for coating metallic strands with a metal coating
FR1493526A (en) * 1966-05-27 1967-09-01 Hitachi Ltd Method and apparatus for hot dipped metal coating
FR1592041A (en) * 1967-11-18 1970-05-04
FR2041276A5 (en) * 1969-04-18 1971-01-29 Heurtey Sa Device for control of thickness of a coating - on a continuous supporting band
US3778862A (en) * 1971-10-20 1973-12-18 Reynolds Metals Co Apparatus for removing treating liquids from treated metal strip products
EP0038975A1 (en) * 1980-04-11 1981-11-04 Bethlehem Steel Corporation Gas wiping apparatus and method of using

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2194565A (en) * 1938-03-05 1940-03-26 Kennecott Wire And Cable Compa Device and method for cleaning or drying wire and other strand material
FR873608A (en) * 1941-02-25 1942-07-15 Chausson Usines Sa Method and apparatus for tinning, zinc plating or sealing strips intended for the manufacture of tubular elements for automobile radiators or others
US2526731A (en) * 1945-02-13 1950-10-24 Armco Steel Corp Method of and apparatus for coating metallic strands with a metal coating
FR1493526A (en) * 1966-05-27 1967-09-01 Hitachi Ltd Method and apparatus for hot dipped metal coating
FR1592041A (en) * 1967-11-18 1970-05-04
FR2041276A5 (en) * 1969-04-18 1971-01-29 Heurtey Sa Device for control of thickness of a coating - on a continuous supporting band
US3778862A (en) * 1971-10-20 1973-12-18 Reynolds Metals Co Apparatus for removing treating liquids from treated metal strip products
EP0038975A1 (en) * 1980-04-11 1981-11-04 Bethlehem Steel Corporation Gas wiping apparatus and method of using

Also Published As

Publication number Publication date
EP0126057A2 (en) 1984-11-21

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT DE FR GB IT LU SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: C23C 2/18

AK Designated contracting states

Designated state(s): AT DE FR GB IT LU SE

17P Request for examination filed

Effective date: 19850829

17Q First examination report despatched

Effective date: 19860528

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19860925

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PELERIN, JACQUES

Inventor name: COUTSOURADIS, DIMITRI