EP0064922A1 - Perfectionnements apportés aux installations de galvanisation de bandes métalliques - Google Patents

Perfectionnements apportés aux installations de galvanisation de bandes métalliques Download PDF

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Publication number
EP0064922A1
EP0064922A1 EP82400811A EP82400811A EP0064922A1 EP 0064922 A1 EP0064922 A1 EP 0064922A1 EP 82400811 A EP82400811 A EP 82400811A EP 82400811 A EP82400811 A EP 82400811A EP 0064922 A1 EP0064922 A1 EP 0064922A1
Authority
EP
European Patent Office
Prior art keywords
strip
roller
bath
galvanizing
installation
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Withdrawn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
EP82400811A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert Wang
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.)
Fives Stein SA
Original Assignee
Stein Heurtey 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 Stein Heurtey SA filed Critical Stein Heurtey SA
Publication of EP0064922A1 publication Critical patent/EP0064922A1/fr
Withdrawn legal-status Critical Current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
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • 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
    • C23C2/003—Apparatus
    • C23C2/0034—Details related to elements immersed in bath
    • C23C2/00342—Moving elements, e.g. pumps or mixers
    • C23C2/00344—Means for moving substrates, e.g. immersed rollers or immersed bearings
    • 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
    • C23C2/003—Apparatus
    • C23C2/0035—Means for continuously moving substrate through, into or out of the bath
    • 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
    • C23C2/006—Pattern or selective deposits
    • C23C2/0062—Pattern or selective deposits without pre-treatment of the material to be coated, e.g. using masking elements such as casings, shields, fixtures or blocking elements

Definitions

  • the present invention relates to improvements made to installations for galvanizing metal strips.
  • a galvanizing installation comprises: a tank containing a bath of molten zinc, one or more deflection rollers ensuring the guiding of the strip to be galvanized along a path which brings it into contact with the metal of the bath and means ensuring the 'wringing and drying of the strip, to bring the thickness of the metal deposited to the desired value.
  • the deflection roller (s) When the installation is intended to provide galvanization on both sides of the strip, the deflection roller (s) are immersed in the tank and preferably they are positioned at the bottom of this tank so that the strip plunges into the bath. molten zinc.
  • the deflection rollers are located above the level of the zinc bath and this is brought into contact with the face of the sheet to be coated by various means such as, for example, elevation by effect of the meniscus, by boiling or alternatively by using a coating roller plunging partially into the galvanizing bath and which coats the desired face of the strip which is in contact with it with liquid zinc.
  • various means such as, for example, elevation by effect of the meniscus, by boiling or alternatively by using a coating roller plunging partially into the galvanizing bath and which coats the desired face of the strip which is in contact with it with liquid zinc.
  • the present invention proposes to provide an installation making it possible to go from galvanizing a metal strip on one side to galvanizing on two sides, and vice versa, without requiring the installation to be stopped and without cutting the strip.
  • the installation according to the invention makes it possible to carry out annealing without galvanizing when, for example, the oven connected to the device is used for the sole purpose of annealing.
  • the installation according to the invention implements the galvanizing process on a known face, according to which a coating roller is used which brings the molten zinc onto the determined face of the strip, stretched horizontally between two deflection rollers.
  • the bottom roller is mounted at the end of a sliding arm in a fixed part of the installation and the arm supporting the coating roller is articulated on an axis provided on said fixed part.
  • the installation further comprises a correcting roller, placed below the surface of the bath of molten zinc, in order to improve the flatness of the strip during spinning, in the case two-sided galvanizing, this correcting roller being mounted on a movable arm.
  • the installation comprises two movable blowing nozzles to ensure the dewatering of the excess zinc deposited during the coating on one or two faces.
  • the installation according to the invention comprises, as known, a bath of molten zinc 10 contained in a galvanizing tank 12, heated by any appropriate means, a bell 14 plunging into the galvanizing bath 10 and a galvanizing tube 16 connected to the bell 14 and communicating with an annealing furnace not shown.
  • the metal strip B to be galvanized on one or two sides, first passes over a fixed deflection roller 18, mounted in the bell 14, above the molten zinc bath 10 and at the outlet of the horn 16 in the bell.
  • the installation comprises a second deflection roller 20, which pivots at the end of an articulated arm 22 canted at 24 on the walls of the bell so as to be able to occupy two positions: a rest position ( Figure 1) in which it is kept away from the path of the strip B and a working position, in which the strip B comes to rest on this roller (FIGS. 2 and 3) in order to be stretched horizontally between the return rollers 18 and 22.
  • the coating roller 26 spins at the end of an articulated arm 28. It can therefore occupy two positions: a rest position, in which it is released from the path of the strip B (FIGS. 1 and 3), and a working position (Figure 2), in which it ensures, as will be seen below, the coating of the face of the strip which is supported on it.
  • the installation also includes a fourth roller, called the bottom roller 30 which spins at the end of a movable arm 32.
  • the arm 32 slides inside an element fixed 34 secured to the bell 14 and the arm 28 receiving the coating roller 26 is articulated at 36 on the fixed element 34.
  • the bottom roller 30 can therefore occupy two positions: a working position ( Figure 1) in which it plunges into the galvanizing bath 10 while supporting the strip and a rest position ( Figures 2 and 3) in which it is moved away from the trajectory of this strip.
  • the installation further comprises a correcting roller 38 mounted at the end of a movable arm 40.
  • the roller is placed below the surface of the galvanizing bath 10 in order to improve the flatness of the strip in the spin in the case of galvanization on two sides.
  • the assembly is provided as known draining means to bring 'the thickness of the deposited metal to the desired value.
  • These means here consist of blowing nozzles 42, 42 'mounted at the end of articulated arms 44, 44' for changing the orientation of the gas jet distributed by each nozzle.
  • Each of the nozzles and its articulated arm are mounted on a tube 46, 46 ', respectively, which can be moved vertically by means of a rack system 48, 48' respectively.
  • the movement control systems of the various movable rollers are located outside and they are produced in a conventional manner. For this reason they will not be described here.
  • the atmosphere under the bell 14 is composed of a nitrogen / hydrogen mixture preferably comprising from 2 to 5% of hydrogen.
  • the pressure in the bell is kept positive with respect to the ambient conditions by a leakage through a slot 50 at the passage of the strip, possibly supplemented by a sealing device located at the place where the strip exits in the air ambient.
  • the invention provides an installation which, by simply positioning the different rollers on which the strip rests and without stopping the installation or cutting the strip, makes it possible to obtain three modes separate operation which is not possible with existing facilities at present.

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)
EP82400811A 1981-05-07 1982-05-04 Perfectionnements apportés aux installations de galvanisation de bandes métalliques Withdrawn EP0064922A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8109061A FR2505366A1 (fr) 1981-05-07 1981-05-07 Perfectionnements apportes aux installations de galvanisation de bandes metalliques
FR8109061 1981-05-07

Publications (1)

Publication Number Publication Date
EP0064922A1 true EP0064922A1 (fr) 1982-11-17

Family

ID=9258162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400811A Withdrawn EP0064922A1 (fr) 1981-05-07 1982-05-04 Perfectionnements apportés aux installations de galvanisation de bandes métalliques

Country Status (8)

Country Link
US (1) US4446812A (es)
EP (1) EP0064922A1 (es)
AU (1) AU8349482A (es)
BR (1) BR8202560A (es)
ES (1) ES8302793A1 (es)
FI (1) FI821597L (es)
FR (1) FR2505366A1 (es)
ZA (1) ZA822915B (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2544342A1 (fr) * 1983-04-13 1984-10-19 Mannesmann Ag Installation pour le revetement au choix sur une ou deux faces d'une bande en circulation sans fin, notamment pour la galvanisation de bande d'acier
EP0255466A1 (de) * 1986-07-30 1988-02-03 MANNESMANN Aktiengesellschaft Anlage zum ein- oder zweiseitigen Verzinken
EP0278481A2 (en) * 1987-02-09 1988-08-17 Armco Steel Company L.P. Multiple nozzle jet finishing
CN114807801A (zh) * 2022-04-24 2022-07-29 刘学国 一种钢结构加工用的钢结构表面镀锌设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728434A (en) * 1995-08-08 1998-03-17 Pacific/Hoe Saw And Knife Company Method of applying a wear-resistant coating on a thin, metallic strip-shaped carrier
KR20110042170A (ko) * 2008-07-21 2011-04-25 지멘스 바이 메탈스 테크놀로지 에스에이에스 연속 이동 강철 스트립의 아연도금을 위해 사용된 아연도금 탱크 내의 바닥 롤러를 설치하는 장치

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB238999A (en) * 1924-06-28 1925-09-03 Harry Warren Bundy Improvements in a machine for tinning strips of metal
DE433793C (de) * 1924-10-31 1926-09-11 Walter Goswin Verfahren zum Erzielen eines in der Staerke regulierbaren UEberzuges von Schutzmetall auf Draehten, Bandeisen u. dgl.
DE2533785B1 (de) * 1975-07-29 1976-11-04 Thyssen Huette Ag Vorrichtung zum feueraluminieren eines metallbandes
FR2356736A1 (fr) * 1976-06-30 1978-01-27 Heurtey Metallurgie Dispositif pour realiser la galvanisation de bandes metalliques sur une seule face
US4172911A (en) * 1976-09-16 1979-10-30 Michels Norman C Method of coating one side only of strip material
FR2427399A1 (fr) * 1978-05-29 1979-12-28 Nippon Steel Corp Procede et appareil pour appliquer des revetements de metaux fondus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR478038A (fr) * 1914-04-07 1915-11-19 Daniel Robert James Perfectionnements apportés aux appareils servant à la fabrication des plaques de fer blanc, de fer blanc terne et des plaques analogues
US1924142A (en) * 1930-02-01 1933-08-29 Marathon Paper Mills Co Process and apparatus for sulphurizing paper board
FR1153508A (fr) * 1955-06-10 1958-03-12 Sharon Steel Corp Dispositif d'application d'un revêtement sur des objets métalliques
US3808033A (en) * 1970-01-27 1974-04-30 Nat Steel Corp Continuous metallic strip hot-dip metal coating apparatus
US3799789A (en) * 1972-08-16 1974-03-26 Western Electric Co Method of tinning wire
DE2559350B2 (de) * 1975-12-31 1978-06-15 Paul 4018 Langenfeld Fontaine Vorrichtung zum Beschichten von Bandmaterial wie Bandblech

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB238999A (en) * 1924-06-28 1925-09-03 Harry Warren Bundy Improvements in a machine for tinning strips of metal
DE433793C (de) * 1924-10-31 1926-09-11 Walter Goswin Verfahren zum Erzielen eines in der Staerke regulierbaren UEberzuges von Schutzmetall auf Draehten, Bandeisen u. dgl.
DE2533785B1 (de) * 1975-07-29 1976-11-04 Thyssen Huette Ag Vorrichtung zum feueraluminieren eines metallbandes
FR2356736A1 (fr) * 1976-06-30 1978-01-27 Heurtey Metallurgie Dispositif pour realiser la galvanisation de bandes metalliques sur une seule face
US4172911A (en) * 1976-09-16 1979-10-30 Michels Norman C Method of coating one side only of strip material
FR2427399A1 (fr) * 1978-05-29 1979-12-28 Nippon Steel Corp Procede et appareil pour appliquer des revetements de metaux fondus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2544342A1 (fr) * 1983-04-13 1984-10-19 Mannesmann Ag Installation pour le revetement au choix sur une ou deux faces d'une bande en circulation sans fin, notamment pour la galvanisation de bande d'acier
EP0255466A1 (de) * 1986-07-30 1988-02-03 MANNESMANN Aktiengesellschaft Anlage zum ein- oder zweiseitigen Verzinken
WO1988000983A1 (en) * 1986-07-30 1988-02-11 Paul Fontaine Single- or two-sided galvanizing plant
US4884525A (en) * 1986-07-30 1989-12-05 Paul Fontaine Single or two-sided galvanizing plant
EP0278481A2 (en) * 1987-02-09 1988-08-17 Armco Steel Company L.P. Multiple nozzle jet finishing
EP0278481A3 (en) * 1987-02-09 1989-03-01 Armco Inc. Multiple nozzle jet finishing
CN114807801A (zh) * 2022-04-24 2022-07-29 刘学国 一种钢结构加工用的钢结构表面镀锌设备
CN114807801B (zh) * 2022-04-24 2023-11-24 唐山裕宁实业有限公司 一种钢结构加工用的钢结构表面镀锌设备

Also Published As

Publication number Publication date
ZA822915B (en) 1983-03-30
US4446812A (en) 1984-05-08
FR2505366A1 (fr) 1982-11-12
AU8349482A (en) 1982-11-11
ES511945A0 (es) 1983-02-16
FI821597L (fi) 1982-11-08
ES8302793A1 (es) 1983-02-16
FI821597A0 (fi) 1982-05-06
BR8202560A (pt) 1983-04-19

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

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AK Designated contracting states

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17P Request for examination filed

Effective date: 19830511

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

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18D Application deemed to be withdrawn

Effective date: 19841201

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WANG, ROBERT