EP0254633A1 - Anlage zur Behandlung von Gegenständen aus Metall in einem Schritt - Google Patents

Anlage zur Behandlung von Gegenständen aus Metall in einem Schritt Download PDF

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Publication number
EP0254633A1
EP0254633A1 EP87401682A EP87401682A EP0254633A1 EP 0254633 A1 EP0254633 A1 EP 0254633A1 EP 87401682 A EP87401682 A EP 87401682A EP 87401682 A EP87401682 A EP 87401682A EP 0254633 A1 EP0254633 A1 EP 0254633A1
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EP
European Patent Office
Prior art keywords
product
section
zone
unit according
oven
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Withdrawn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
EP87401682A
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English (en)
French (fr)
Inventor
Guy Gerard
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0254633A1 publication Critical patent/EP0254633A1/de
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • 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

Definitions

  • the present invention relates to an on-line processing unit for metal products, the design of which by sections, which can be made active independently, allows several types of processing to be carried out on the same line and to admit products with different characteristics as input.
  • the putting into service of such or such section, its possible adjustment, the inhibition of other sections make it possible to condition the line for treatments such as a metallic coating of the product in the oven, than an organic coating of the paint type, that a succession of metallic and organic coatings, as a heat treatment alone or prior to coating operations.
  • La Ligne and the various possible settings give the installation a plurality of functions which, usually, are carried out on separate machines, and consequently, by different manufacturers.
  • metal coating equipment - galvanization for example - is heavy equipment, requiring a large investment whose profitability requires a large production and the most uniform possible.
  • the main concern of the industrialist thus equipped is therefore completely contrary to that of the diversification of his production. It is the same for the firm producing strips of metallic product, painted or lacquered, or which performs a heat treatment (bluing) on metal strips.
  • the present invention arose from the need in the field of the steel industry, from a single production tool, to be able to manufacture different products of different qualities in the same range or of different natures, in order, on the one hand, to be able absorb in basic product materials of various quality and nature therefore at competitive prices and, on the other hand, to be able to respond in a way more suited to the market and especially to variations in demand.
  • the invention constitutes an alternative to the conventional means of production going against the technical and economic prejudices which have presided over the implementation of important installations.
  • a shutdown of the unit only results in an absolute small drop in production, and the products in the oven can be of low tonnage.
  • the unit can thus absorb basic products which it is impossible to process conventionally and which are available on the market at very low prices.
  • the unit according to the invention makes it possible to recover a large number of by-products or waste products from conventional treatment lines. It also makes it easy to adapt to various market demands while requiring only a much lower investment than that of conventional machines. A reduced flow necessarily imposes a low scrolling speed.
  • the invention therefore relates to an on-line processing unit for metallic products made of wires, strips or strips, adapted to produce on the product to be treated, depending on its nature, either a metallic coating or a coating. organic, either both successively, or a heat treatment alone or associated with the aforementioned coatings, comprising between a device for unwinding and continuously putting the product to be treated and a device for winding the finished product, in the direction of circulation of the product, at least one thermal calorie supply section, a metal coating section and a cooling section.
  • Said calorie intake section comprises a base oven, the maximum heating power of which is defined by its ability to heat from ambient temperature to approximately 750 ° C., an amount of metal at most equal to 7 tonnes per hour continuously passing through said oven, at a constant speed at most equal to 12 meters per minute and means for adjusting the power of this oven between this maximum value and zero and for fixing the atmosphere of the last.
  • the unit according to the invention may also include, upstream of the above-mentioned oven, a preheating oven, the power of which maximum is defined by an increase in the temperature of the product passing through it under the above-mentioned maximum speed, of approximately 250 ° C.
  • the unit comprises means for guiding the product between the two coating sections, defining a first vertical upward circulation zone of the product, leaving the metal coating section, then a first area. high horizontal circulation, then a vertical downward circulation zone of the product up to the entrance of the organic coating section.
  • the unit comprises, at the exit from the organic coating section, a second vertical rising circulation zone of the product, followed by a second horizontal zone substantially at the level of the above-mentioned first horizontal zone.
  • zones are intended to receive means for complementary treatment of the product essentially of the thermal type (supply or extraction of calories) which will be put into or out of service depending on the products to be treated or the products to be obtained and which may or may not be removable.
  • the unit according to the invention comprises means for rendering the product inactive with respect to one or the other of the coating sections constituted by elements for deflecting the path of the product allowing, for example, to avoid the galvanizing bath, to pass the product directly out of the oven into the first rising circulation zone and, to avoid the painting zone (organic coating), to pass directly from the first to the second horizontal zone.
  • the unit includes a rinsing cleaning section which can be used or not depending on the nature of the products in the oven, as well as a surface treatment section, in particular for the organic coating. .
  • the unit comprises return rollers such as 3b and 7 as well as those 15 and 16 making it possible to deviate if necessary
  • the path of the product for short-circuiting sections of the unit whose implementation is not required for the treatment considered (see the examples in the following figures).
  • each section can be made active or inactive with regard to the product and this, independently.
  • sections such as 3, 9 and 12 where a physical contribution is made to the product making them inactive consists in short-circuiting them by modifying the path of the product.
  • the thermal section 5 can operate either in an atmosphere, or open (in the open air), -as well as the thermal equipment in zone 10-, or operate only at reduced temperature, in particular for drying the product having undergone previously the action of several surface treatment baths.
  • FIG 2 there is shown the implementation of the unit according to the invention to perform the bluing (heat treatment) of a product 20 (one or more metal ribbons obtained by slitting strip) of work hardened steel.
  • a product 20 one or more metal ribbons obtained by slitting strip
  • the elements already described have the same references, but only those active in relation to the product are referenced. It can therefore be seen in this figure that only the sections 3.5 are in service, the product being diverted from the galvanizing tank by the roller 7 and diverted from the organic coating section.
  • the oven and its atmosphere (which may be air) will have been adjusted to a temperature of the order of 450-550 ° C.
  • the oven 5a has at its output means for brutally cooling the product which, implemented at their maximum efficiency, make it possible to lower its temperature to around 90 ° C.
  • the equipment 10a will then be constituted by an additional cooler.
  • FIG. 3 it is the metallic coating of a product 30 which is represented, the active sections being here also only referenced.
  • the thermal section 5 is under an appropriate atmosphere, adjusted to obtain a product temperature of the order of 700 to 750 ° C., if necessary by means of preheating, by the oven 5a, which is then brought back by the cooling section 6, also under a protective atmosphere, to a temperature close to that of the bath (400 to 450 ° C. if this bath is a zinc alloy) of section 9.
  • This section is totally or partially under an atmosphere, preferably neutral, to avoid oxidation of the coating.
  • the equipment 10a is put into service to cool the coated strip up to a temperature allowing complete solidification of the coating, so that the product can be wound up without damage on the roll 17.
  • the equipment 11a will be an additional cooler.
  • the oven 5 is adjusted to bring the product between 600 and 650 ° C.
  • the commissioning of the induction furnace is then no longer necessary except in the case where it is desired to increase the thickness of the strip under the same running speed.
  • the other sections and equipment are set to roughly the same values as those described above.
  • the equipment 10a is a furnace and in particular the furnace 5b which, disassembled from its preheating zone, is reassembled in zone 10, making it possible to transform the metallic deposit into an alloy with the base metal.
  • the subsequent cooling of the product will be carried out by the equipment 11a and 14a.
  • FIG. 4 illustrates the packaging of the unit for galvanization followed by an organic coating of the product 40. It will be noted that, with the exception of section 4, all the sections and equipment are activated. The adjustment of the galvanization will take place as indicated above, depending on the nature of the product in the oven, while the strip, at the outlet of the additional cooler 11a, is diverted by the roller 16 to Section 12 and then dried by The equipment 13a (a baking oven) and be cooled by the cooling device 14a.
  • the equipment 13a may advantageously be constituted by the induction furnace 5b if the implementation of preheating is not necessary.
  • FIG. 5 shows the unit according to the invention, configured to paint a product 50 which must be degreased in 3, and / or treated on the surface in the chemical treatment station 4, dry in the oven 5 at reduced temperature and in air before introducing it into the organic coating section 12.
  • the organic coating equipment and the associated thermal equipment can be replaced, in the unit according to the invention, by chemical treatment or electroplating equipment to carry out the final coating of the product or the chemical transformation of the last thickness of its surface layer.
  • the invention finds an interesting application in the field of the treatment of metallurgical products in strip or wire sheet.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Coating With Molten Metal (AREA)
EP87401682A 1986-07-18 1987-07-17 Anlage zur Behandlung von Gegenständen aus Metall in einem Schritt Withdrawn EP0254633A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8610464A FR2601700A1 (fr) 1986-07-18 1986-07-18 Unite de traitement en ligne de produits metalliques
FR8610464 1986-07-18

Publications (1)

Publication Number Publication Date
EP0254633A1 true EP0254633A1 (de) 1988-01-27

Family

ID=9337545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401682A Withdrawn EP0254633A1 (de) 1986-07-18 1987-07-17 Anlage zur Behandlung von Gegenständen aus Metall in einem Schritt

Country Status (5)

Country Link
EP (1) EP0254633A1 (de)
AU (1) AU7707487A (de)
FR (1) FR2601700A1 (de)
MA (1) MA21037A1 (de)
WO (1) WO1988000619A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002046487A1 (fr) * 2000-12-08 2002-06-13 Vai Clecim Installation de production d'une bande metallique avec revetement de protection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB453803A (en) * 1935-09-23 1936-09-18 Tadeusz Sedzimir Process and apparatus for coating metallic objects with layers of other metals
US4101345A (en) * 1976-11-05 1978-07-18 The Steel Company Of Canada, Limited Galvanizing steel strip in selected areas thereof
GB2093486A (en) * 1981-02-24 1982-09-02 Kloeckner Werke Ag Plant for the continuous treatment of thin plate or strip
EP0072874A1 (de) * 1981-08-25 1983-03-02 Nippon Steel Corporation Anlage mit zweifacher Funktion zur Herstellung von kalt gewalztem und feuerflüssig überzogenem Stahlblech
EP0107555A1 (de) * 1982-10-06 1984-05-02 Fabrique De Fer De Maubeuge Verfahren zur ununterbrochenen Herstellung eines überzogenen und gegebenenfalls geformten Metallbandes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59208026A (ja) * 1983-05-13 1984-11-26 Nippon Kokan Kk <Nkk> 連続焼鈍設備

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB453803A (en) * 1935-09-23 1936-09-18 Tadeusz Sedzimir Process and apparatus for coating metallic objects with layers of other metals
US4101345A (en) * 1976-11-05 1978-07-18 The Steel Company Of Canada, Limited Galvanizing steel strip in selected areas thereof
GB2093486A (en) * 1981-02-24 1982-09-02 Kloeckner Werke Ag Plant for the continuous treatment of thin plate or strip
EP0072874A1 (de) * 1981-08-25 1983-03-02 Nippon Steel Corporation Anlage mit zweifacher Funktion zur Herstellung von kalt gewalztem und feuerflüssig überzogenem Stahlblech
EP0107555A1 (de) * 1982-10-06 1984-05-02 Fabrique De Fer De Maubeuge Verfahren zur ununterbrochenen Herstellung eines überzogenen und gegebenenfalls geformten Metallbandes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 74 (C-273)[1797], 3 avril 1985; & JP-A-59 208 026 (NIPPON KOKAN K.K.) 26-11-1984 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002046487A1 (fr) * 2000-12-08 2002-06-13 Vai Clecim Installation de production d'une bande metallique avec revetement de protection
FR2817876A1 (fr) * 2000-12-08 2002-06-14 Vai Clecim Installation de production d'une bande metallique avec revetement de protection
US6764641B2 (en) 2000-12-08 2004-07-20 Vai Clecim Plant for producing a metal band with protection

Also Published As

Publication number Publication date
MA21037A1 (fr) 1988-04-01
FR2601700A1 (fr) 1988-01-22
FR2601700B1 (de) 1993-02-26
WO1988000619A1 (fr) 1988-01-28
AU7707487A (en) 1988-02-10

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