EP0477710B1 - Installation de passage pour déposer un métal liquide - Google Patents

Installation de passage pour déposer un métal liquide Download PDF

Info

Publication number
EP0477710B1
EP0477710B1 EP91115664A EP91115664A EP0477710B1 EP 0477710 B1 EP0477710 B1 EP 0477710B1 EP 91115664 A EP91115664 A EP 91115664A EP 91115664 A EP91115664 A EP 91115664A EP 0477710 B1 EP0477710 B1 EP 0477710B1
Authority
EP
European Patent Office
Prior art keywords
channel
coating
liquid metal
chamber
continuous coating
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
EP91115664A
Other languages
German (de)
English (en)
Other versions
EP0477710A1 (fr
Inventor
Joachim Barzantny
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0477710A1 publication Critical patent/EP0477710A1/fr
Application granted granted Critical
Publication of EP0477710B1 publication Critical patent/EP0477710B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • C23C2/24—Removing excess of molten coatings; Controlling or regulating the coating thickness using magnetic or electric fields

Definitions

  • the present invention relates to a liquid metal continuous coating system with an approximately horizontal coating channel for coating long profile pieces, in particular for galvanizing steel profile pieces.
  • Electromagnetic pumps need a magnetic yoke, which can be formed by a continuous reinforcing steel in a pump with a circular channel cross section.
  • a magnetic yoke which can be formed by a continuous reinforcing steel in a pump with a circular channel cross section.
  • an electromagnetic pump with a circular channel cross section and circular windings surrounding the channel is unable to hold the zinc in the coating channel.
  • the magnetic inference is missing when there is no reinforcing steel passes through, so that in this case the liquid zinc can escape unhindered by the entry or exit.
  • DE-B 1 120 079 describes a device for regulating the falling speed of a stream of molten metal, in which a comb-like slotted magnetic core, which is aligned parallel to the direction of flow, is attached to a vertical flow channel of rectangular cross-section on both broad sides, each 19 to the channel directed teeth and 18 interconnected induction coils.
  • the channel is formed from numerous rings that are connected to each other by refractory cement, which can be joined together and are preferably made of corundum.
  • the rings are coated with a refractory mass that has a heat-insulating effect and consists, for example, of an aluminum oxide powder contained in a casing.
  • the invention has for its object to provide a liquid metal continuous coating system for long profile body of almost any cross-section, which prevents the liquid metal intended for coating from running out in the coating channel.
  • a liquid metal continuous coating system for a long time Profile body with a heatable coating channel of approximately horizontal longitudinal axis and of horizontally flat cross section, each with a pair of electromagnets on the broad sides at both ends above and below the coating channel and with a feed channel for liquid metal.
  • the electromagnets which normally consist of induction coils wound on iron cores
  • a force is generated in the liquid metal between two opposing electromagnets, which is directed into the coating chamber.
  • the liquid metal in the coating chamber is prevented from escaping against its gravity. Only a very thin layer of liquid metal adheres metallurgically to the continuous profile piece or profile body, the layer thickness of which depends on the temperature in the coating chamber and on the dwell time of the profile piece in the liquid metal.
  • the temperature in the coating channel can be measured and controlled in a known manner. Then the layer thickness only depends on the throughput speed and on the horizontal length of the liquid metal bath. This length can be adjusted by shifting the pairs of electromagnets against each other from outside the coating channel. The liquid metal continued with the continuous profile pieces is replaced via the feed channel. The force applied in the liquid metal is approximately proportional to the current applied in the electromagnet.
  • the system should preferably have a liquid metal furnace that keeps the fill level in the coating chamber constant and that is suitable for quick inspection and maintenance to empty the system.
  • the supply channel for liquid Metal to the coating channel to be connected to a chamber of a heatable two-chamber furnace, the two chambers of which have a partition with an overflow above the coating channel and which - preferably below the partition - are connected to an electromagnetic pump.
  • this pump maintains a level that keeps the coating channel filled without special regulation.
  • coating metal can be refilled in solid or liquid form at intervals without affecting the filling level in the coating channel.
  • the electromagnetic pump below the partition can be switched off, so that the coating channel empties into the two-chamber furnace.
  • the supply of an inert gas in the upper region of the coating channel is expedient so that cold outside air does not penetrate into the coating channel and oxidize or solidify hot liquid metal there.
  • a further embodiment of the invention is characterized in that the coating channel has interchangeable screens at the inlet and / or outlet, which are adapted to the continuous profile pieces at a short distance. On the one hand, this reduces the force required to hold the liquid metal in the coating channel and, on the other hand, the supply of cold outside air is reduced.
  • induction coils are arranged on comb-shaped coil cores with teeth directed towards the coating channel as electromagnets on the broad sides of the coating channel.
  • these induction coils can be mounted on their comb-shaped coil core in a fully wound form. The necessary magnetic inference is produced in each case via the back of the two comb-shaped coil cores opposite one another above and below the coating channel.
  • Figure 1 shows a perspective view with a vertical partial longitudinal section through a liquid metal continuous coating system without a liquid metal furnace.
  • FIG. 2 shows a vertical cross section through FIG. 1 in the area of the feed for the liquid metal and a section through a connected two-chamber furnace.
  • a rectangular profile piece 1 runs through an inlet panel 2 into a horizontal coating channel 3 with a horizontally flat cross section. In operation, this channel 3 is filled with a liquid metal.
  • the profile piece 1 exits through an outlet panel 4.
  • the panels 2, 4 are interchangeable. They are adapted to the continuous profile pieces 1 with a small distance.
  • a pair of electromagnets is arranged above and below the coating channel 3 both after the inlet orifice 2 and in front of the outlet orifice 4.
  • Their induction coils 5 are arranged on comb-shaped coil cores 6, each with six teeth directed towards the coating channel 3. Coils 5 lying one above the other are wound in the same sense.
  • the rectangular profile 1 passes through an electrically heated coating channel 3, which is filled with liquid metal in operation.
  • This channel 3 is connected to a likewise electrically heatable two-chamber furnace 8 via a lateral horizontal feed channel 7 for liquid metal connected.
  • the two-chamber furnace 8 has a likewise electrically heatable ceiling 9 with an insulated filler cap 10.
  • a vertical partition 11 is arranged in the interior of the furnace 8 and has an overflow edge 12 somewhat above the highest point of the coating channel 3.
  • An electromagnetic pump 13 below the two-chamber furnace 8 connects the two chambers 14 and 15 to one another via openings on the bottom. During operation in the chamber 15, it keeps the level of the liquid metal constant by means of the overflow 12.
  • the coating channel 3 is constantly filled with constant pressure; if necessary, it can be emptied very quickly by switching off the electromagnetic pump 13.
  • the chamber 14 can be charged with solid or liquid metal without this filling process being able to affect the fill level in the coating channel 3. Any deposits of oxides or impurities floating on top of the liquid metal are flushed into the chamber 14 via the overflow 12; therefore they cannot penetrate into the coating channel 3.
  • the winding direction of the induction coils 5 below and above the coating channel 3 is indicated by a wire winding 16.

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)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (6)

  1. Installation de passage pour le dépôt d'un métal liquide pour des corps profilés (1) longs, notamment pour la galvanisation de profilés en acier pour béton, cette installation comprenant un canal de dépôt (3) chauffable ayant un axe longitudinal à peu près horizontal et une section horizontale aplatie, et comprenant, à chacune des deux extrémités du canal de dépôt (3), au-dessus et au-dessous de celui-ci, deux électro-aimants (5, 6) situés sur ses côtés larges, ainsi qu'un canal d'alimentation (7) pour le métal liquide.
  2. Installation de passage pour le dépôt d'un métal liquide selon la revendication 1, caractérisée en ce que le canal d'alimentation (7) du métal liquide vers le canal de dépôt (3) est relié à une chambre (15) d'un fourneau à deux chambres (8) chauffable , dont les deux chambres (14, 15) possèdent une cloison (11) avec déversoir (12) au-dessus du canal de dépôt (3), et en ce que les chambres (14, 15) sont reliées l'une à l'autre, de préférence au-dessous de la cloison (11), par l'intermédiaire d'une pompe (13).
  3. Installation de passage pour le dépôt d'un métal liquide selon la revendication 1 ou 2, caractérisée en ce que le canal de dépôt (3) est pourvu, à l'entrée et/ou à la sortie, de diaphragmes (2, 4) interchangeables qui sont adaptés, avec un intervalle faible, au passage des profilés (1).
  4. Installation de passage pour le dépôt d'un métal liquide selon l'une des revendications 1 à 3, caractérisée en ce que sur les côtés larges du canal de dépôt (3) sont situés des électro-aimants (5, 6) comportant des bobines d'inductance (5) disposées sur des noyaux de bobines (6) en forme de peignes pourvus de dents dirigées vers le canal de dépôt (3).
  5. Installation de passage pour le dépôt d'un métal liquide selon l'une des revendications 1 à 4, caractérisée en ce que la distance réciproque des électro-aimants (5, 6) est réglable.
  6. Installation de passage pour le dépôt d'un métal liquide selon l'une des revendications 1 à 5, caractérisée en ce que l'entrée et/ou la sortie pour le passage des profilés (1) est pourvue d'une alimentation pour un gaz inerte.
EP91115664A 1990-09-28 1991-09-16 Installation de passage pour déposer un métal liquide Expired - Lifetime EP0477710B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9013648U 1990-09-28
DE9013648U DE9013648U1 (de) 1990-09-28 1990-09-28 Flüssigmetall-Durchlaufbeschichtungsanlage

Publications (2)

Publication Number Publication Date
EP0477710A1 EP0477710A1 (fr) 1992-04-01
EP0477710B1 true EP0477710B1 (fr) 1995-06-21

Family

ID=6857935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115664A Expired - Lifetime EP0477710B1 (fr) 1990-09-28 1991-09-16 Installation de passage pour déposer un métal liquide

Country Status (3)

Country Link
EP (1) EP0477710B1 (fr)
AT (1) ATE124093T1 (fr)
DE (2) DE9013648U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105159A1 (de) * 1991-02-20 1992-08-27 K A Schwan Vorrichtung zum beschichten und rippen von betonstahl

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB777213A (en) * 1952-04-09 1957-06-19 Birlec Ltd A new or improved method of, and apparatus for, controlling or preventing the discharge of molten metal from containers
JPS5129870B2 (fr) * 1973-05-15 1976-08-27
JPS5129981B2 (fr) * 1973-07-17 1976-08-28
FR2318239A1 (fr) * 1975-07-18 1977-02-11 Pechiney Ugine Kuhlmann Procede de revetement au trempe de fils ou bandes metalliques a grande vitesse
FR2386359A1 (fr) * 1977-04-07 1978-11-03 Labo Electronique Physique Procede de depot par immersion en continu, dispositif et produits obtenus
JPS54150446A (en) * 1978-05-19 1979-11-26 Koshuha Netsuren Kk Continuous coating layer formation of unbonded pc steel rod and apparatus therefor
US4242150A (en) * 1979-05-25 1980-12-30 Maxwell Herris M Method of producing reinforcing bars with corrosion resistant coating
EP0059070A1 (fr) * 1981-02-24 1982-09-01 Spencer Clark Metal Industries Limited Barres d'acier protégées contre la corrosion
FR2539761A1 (fr) * 1983-01-26 1984-07-27 Sp P Konstruktor Installation pour deposer un revetement protecteur sur des profiles lamines par un procede chaud
DE3303468C2 (de) * 1983-02-02 1986-07-24 Konakovskij zavod stal'nych konstrukcij, Konakovo, Kalininskaja oblast' Anlage zum Metallisieren von Walzprofilen unter Schutzgas
DD277089B1 (de) * 1988-11-18 1993-02-11 Ammendorf Waggonbau Einrichtung zum oxidfreien beschichten von metalloberflaechen in schmelzfluessigen metallbaedern, insbesondere zum verzinnen der schutzrohrflansche von hochspannungsheizstaeben
MA21865A1 (fr) * 1989-06-09 1990-12-31 Galva Lorraine Procede , enceinte et installation pour revetement continu/intermittent d'objets par passage des dits objets a travers une masse liquide d'un produit de revetement .

Also Published As

Publication number Publication date
ATE124093T1 (de) 1995-07-15
DE9013648U1 (de) 1992-02-06
DE59105780D1 (de) 1995-07-27
EP0477710A1 (fr) 1992-04-01

Similar Documents

Publication Publication Date Title
DE69021644T2 (de) System und Vorrichtung zum kontinuierlichen/unterbrochenen Überziehen von Werkstücken durch Eintauchen der Werkstücke in ein Bad aus flüssigem metallischen Überzugsmaterial.
DE2756112C3 (de) Verfahren und Vorrichtung zum horizontalen Stranggießen
DE4242380A1 (de) Verfahren und Vorrichtung zum Beschichten der Oberfläche von strangförmigem Gut
DE2144377B2 (de) Verfahren und Vorrichtung zum Beschichten der Innenfläche von Stahlrohren mit Kunststoffen
CH658809A5 (de) Verfahren zur kontinuierlichen herstellung eines laenglichen metallgegenstandes und vorrichtung zur durchfuehrung des verfahrens.
DE4403049C1 (de) Stranggießanlage und Verfahren zur Erzeugung von Dünnbrammen
EP0477710B1 (fr) Installation de passage pour déposer un métal liquide
DE2548939C2 (de) Verfahren und Vorrichtung zum Stranggießen von Bändern
DE2420347C3 (de) Vorrichtung zur Herstellung von Kupferdraht
EP0021219B1 (fr) Dispositif pour fournir ou ajuster un écoulement de métal liquide dans un tuyau
EP0702608B1 (fr) Procede et dispositif permettant de fabriquer des produits semi-finis
DE3641617A1 (de) Verfahren zum regeln von stranggiessbedingungen
DE60316568T3 (de) Bandtemperaturregelvorrichtung in einer kontinuierlichen bandgiessanlage
CH695090A5 (de) Verfahren sowie eine Vorrichtung zur Herstellung eines Metallbandes an einer Rollen-Bandgiessmaschine.
EP0155374A2 (fr) Pompe à agitation électro-magnétique pour métaux liquides
DE2913024A1 (de) Verfahren zum kuehlen einer oszillierenden stahl-stranggiesskokille
EP0025604A1 (fr) Elément de refroidissement pour fours industriels
DD239546A5 (de) Verfahren zur einstellung der hoehe der beruehrungslinie der freien metalloberflaeche mit der kokille beim senkrechtguss
DE1949982B1 (de) Elektromagnetische Foerderrinne zur Entnahme von fluessigem Metall aus Schmelz- oder Warmhaltegefaessen sowie Verfahren zum Betrieb einer solchen Foerderrinne
DE60224875T2 (de) Vorrichtung und verfahren zum halten flüssigen metalls in kontinuierlicher schmelztauchbeschichtung von metallband
DE3331575C2 (de) Verfahren zum Bogenstranggießen von Metall, insbesondere von Stahl
DE3032789A1 (de) Verfahren zum kombinierten horizontalen giessen und walzen von baendern und profilen aus verschiedenen metallen zum verbundwerk
DE2600696C2 (de) Patentieranlage mit in Zirkulation gehaltener Metallschmelze
AT403351B (de) Verfahren zum stranggiessen eines metallstranges
DE2947163C2 (de) Verfahren und Vorrichtung zum kontinuierlichen Abkühlen von auf hohe Temperaturen erwärmten Drähten

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

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19920903

17Q First examination report despatched

Effective date: 19940503

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 124093

Country of ref document: AT

Date of ref document: 19950715

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59105780

Country of ref document: DE

Date of ref document: 19950727

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950717

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950821

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950825

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950912

Year of fee payment: 5

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950919

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19950922

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19951116

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19951215

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960916

Ref country code: AT

Effective date: 19960916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19960930

Ref country code: FR

Effective date: 19960930

Ref country code: CH

Effective date: 19960930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970401

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960916

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970603

EUG Se: european patent has lapsed

Ref document number: 91115664.4

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050916