EP2188399B2 - Procede et dispositif d'oxydation/reduction controlee de la surface d'une bande d'acier en defilement continu dans un four a tubes radiants en vue de sa galvanisation - Google Patents
Procede et dispositif d'oxydation/reduction controlee de la surface d'une bande d'acier en defilement continu dans un four a tubes radiants en vue de sa galvanisation Download PDFInfo
- Publication number
- EP2188399B2 EP2188399B2 EP08829848.4A EP08829848A EP2188399B2 EP 2188399 B2 EP2188399 B2 EP 2188399B2 EP 08829848 A EP08829848 A EP 08829848A EP 2188399 B2 EP2188399 B2 EP 2188399B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxidation
- strip
- medium
- oxidizing medium
- furnace
- 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.)
- Active
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- 229910000831 Steel Inorganic materials 0.000 title claims description 31
- 239000010959 steel Substances 0.000 title claims description 31
- 238000007254 oxidation reaction Methods 0.000 title claims description 29
- 230000003647 oxidation Effects 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims description 12
- 230000009467 reduction Effects 0.000 title description 8
- 239000000203 mixture Substances 0.000 claims description 28
- 230000001590 oxidative effect Effects 0.000 claims description 28
- 238000005246 galvanizing Methods 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 19
- 238000000137 annealing Methods 0.000 claims description 16
- 239000000446 fuel Substances 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 13
- 239000011701 zinc Substances 0.000 description 13
- 229910052725 zinc Inorganic materials 0.000 description 13
- 238000009434 installation Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000005275 alloying Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 235000021183 entrée Nutrition 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 208000036765 Squamous cell carcinoma of the esophagus Diseases 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 208000007276 esophageal squamous cell carcinoma Diseases 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- 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
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
-
- 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
-
- 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
-
- 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/068—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by radiant tubes, the tube being heated by a hot medium, e.g. hot gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
Definitions
- the invention relates to the continuous galvanizing of steel strips, in particular AHSS, with high silicon, manganese and aluminum contents and, in particular, to installations comprising a radiant tube furnace without a direct flame heating zone.
- the patent JP 02-285057 describes an oxidation phase between 400 and 700°C in a slightly oxidizing atmosphere then a reduction phase between 600 and 800°C in a reducing atmosphere, it indicates temperature ranges and the composition of the gases (contents of O2, N2 and H2 ).
- the patent EP 1 285 972 describes the same principle. These two patents, however, remain very general and do not clearly reveal the practical means of controlling the reactions.
- the patent EP 1 457 580 describes an installation making it possible to carry out the oxidation phase in a specific enclosure where the strip is heated by induction or combustion of a gas, in an oxidizing atmosphere, between 100 and 400°C.
- the patent US 3,936,543 describes an annealing furnace operation aimed not at the specific coating of AHSS steels but making it possible to avoid the use of cleaning fluxes during galvanizing thanks to the oxidation then the surface reduction of carbon steel strips.
- the annealing furnace preceding the galvanizing bath is a conventional furnace comprising a direct flame heating zone (DFF) and a radiant tube temperature holding zone (RTF).
- DFF direct flame heating zone
- RTF radiant tube temperature holding zone
- the reduction is obtained in the RTF zone which comprises at least 5% hydrogen, the remainder being nitrogen.
- the patent WO 2005/017214 offers two options for solving the problem. The first consists in using a direct flame combustion chamber separated from the RTF annealing furnace and from which the burnt gases are collected in order to inject them into the furnace. The second is to install a direct flame burner in an area of the oven enclosure. In both cases, the burnt gases provide the necessary oxidizing atmosphere under composition conditions that obviously depend on the temperature of the strip and that of the gases. The reduction is then conventionally obtained by passage through a mixture of nitrogen and hydrogen.
- the invention consists in injecting an oxidizing medium into a section of a furnace with radiant tubes, in particular with a nitrogen/hydrogen atmosphere, using one or more tubes, in particular specially modified and capable of being installed in place and place of any of the existing tubes.
- this injection can be carried out in any section of the furnace, preferably in the preheating section.
- the medium must present, depending on the temperature of the strip and the chemical composition of the latter, a dew point such that the alloying elements such as silicon, manganese, aluminum, chromium are oxidized in depth and no longer have the possibility of migrating to the surface.
- this dew point is above -20°C.
- the injected medium can be water vapor or air or a mixture rich in oxygen. It can also be the product resulting from the combustion of an over-stoichiometric air or super-oxygenated air or oxygen/fuel mixture in a burner.
- Control of this selective oxidation preferably involves measuring the dew point in the zone(s) in which the modified tube(s) are installed. This measurement can be carried out by dew point transmitters installed in a fixed position and operating in a closed loop with the members for adjusting the flow rate of the oxidizing medium injected by the oxidizing medium injectors and/or adjusting the burners.
- the invention also presents an associated device for its implementation of said method and ensuring the organization, in a preheating section and/or a holding section of a continuous galvanizing annealing furnace for steel strips equipped only radiant tubes, with at least one oxidation zone aimed at preventing the selective oxidation of steel alloy elements, by injecting an oxidizing medium into the oxidation zone, characterized in that it comprises at least one tube comprising at least one branch provided with calibrated holes allowing the oxidizing medium to pass into the oxidation zone.
- the means for introducing the oxidizing medium can be either an injector supplying the tube with a hot oxidizing medium such as steam, air or an oxygen-rich gas, or a burner supplying the tube into a product resulting from the combustion of an over-stoichimetric air/fuel mixture, a stoichiometric super-oxygenated air/fuel mixture or a stoichiometric air/oxygenated fuel mixture within the non-explosive limit.
- a hot oxidizing medium such as steam, air or an oxygen-rich gas
- the modified tube(s) intended to supply the oxidizing medium necessary for the oxidation of the strip is (are), for example, a U-shaped tube, one inlet branch of which is equipped at its end with a device for injecting water vapor or air, preheated or not, super-oxygenated or not, or oxygen and whose branch opposite the inlet branch is closed at its end, at least one of the branches preferably the branch opposite to the input branch, is pierced with calibrated holes allowing said medium to pass.
- the U-tube can be replaced by any conventional tube shape such as, for example, a P-shape, double-P shape, W-shape or thimble shape.
- the radiant tube intended to supply the oxidizing medium is a P-shaped tube having an inlet branch equipped at its end with a burner and of which at least one of the branches, preferably the opposite branch at the inlet branch, is pierced with calibrated holes allowing the burnt gases to pass into the enclosure of the furnace.
- the branch opposite the inlet branch comprising the burner can allow part of the burnt gases to evacuate outside the furnace through a calibrated orifice or comprise a heat exchanger device making it possible to preheat the combustion air with the burnt gases.
- the P-tube can be replaced by any conventional tube shape such as, for example, a U-shape, W-shape, double-P shape or glove finger shape.
- the burner(s) are supplied with an over-stoichiometric air/fuel mixture or a stoichiometric super-oxygenated air/fuel mixture or a stoichiometric air/oxygenated fuel mixture within the non-explosive limits.
- Tubes equipped with burner or injector, whatever their type, are directly interchangeable with existing ones. They can be installed on demand depending on the temperature chosen for oxidation or be permanently installed at different points in the furnace. In this case, they are activated according to the choice of the temperature at which it is desired to oxidize the strip, therefore the position of the tube in the oven.
- Another advantage of the process is to locate the injection of oxidizing medium exactly where it is needed, that is to say very close to the two sides of the steel strip and to be able to take advantage of the local effect of turbulence in contact with the band which favors the reactions between the medium and the band.
- the heating in particular in the preheating 61 and holding 62 sections of the oven 6 is obtained by means of radiant tubes.
- a radiant tube 2, in P is installed in the enclosure 1 of a galvanizing annealing furnace, for example a preheating or holding section. It is assembled by a support 5 and a plate 4.
- a burner 3 supplied with fuel and combustion air is arranged at the end of the inlet branch 2a of the tube 2 and delivers high temperature burnt gases into the tube. .
- burnt gases are essentially diffused in the enclosure 1 using calibrated holes 6 made in the branch 2b of the tube, opposite the inlet branch 2a. This branch 2b is closed off at its end so that some of the burnt gases recirculate in the tube.
- the branch 2b of the tube 2 in P opposite the burner 3 is equipped with a calibrated or adjustable device 7 making it possible to evacuate part of the burnt gases to the outside of the furnace.
- the branch 2b of the P-tube opposite the burner 3 is equipped with a heating device 8, 9 of the combustion air by the burnt gases.
- the radiant tube can be of the double P type as shown in figure 6 .
- the burner 3 is arranged in the open end of the central inlet branch 2a of the tube 2.
- the holes 6 are then preferably made in each of the opposite branches 2b located on either side of the central branch 2a.
- a U-tube 2 is installed in the enclosure 1 of a galvanizing annealing furnace. It is assembled by a support 5 and a plate 4.
- An injector 10 supplied with oxidizing gas under pressure such as steam, air or a mixture rich in oxygen delivers into the tube 2 a mixture of oxidizing gases and high temperature HNx mixture present in the furnace enclosure. This mixture is diffused in the enclosure 1 using calibrated holes 6 provided in the branch 2b opposite the inlet branch 2a. The end of branch 2b opposite to inlet branch 2a comprising the injector is closed off by a plug 11.
- the radiant tube 2 can be of the double P type similar to that described in figure 6 , the burner being replaced by an injector 10.
- the injectors are static devices requiring no other energy than that of the fluid which are moreover always available in metallurgical sites, water vapor under pressures of 8 to 10 bars.
- the expansion energy in the enclosure of the oven leads to a stirring and circulation effect which avoids the use of fans. The energy cost of the process is therefore very limited.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0757331A FR2920439B1 (fr) | 2007-09-03 | 2007-09-03 | Procede et dispositif d'oxydation/reduction controlee de la surface d'une bande d'acier en defilement continu dans un four a tubes radiants en vue de sa galvanisation |
PCT/FR2008/000981 WO2009030823A1 (fr) | 2007-09-03 | 2008-07-04 | Procede et dispositif d'oxydation/reduction controlee de la surface d'une bande d'acier en defilement continu dans un four a tubes radiants en vue de sa galvanisation |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2188399A1 EP2188399A1 (fr) | 2010-05-26 |
EP2188399B1 EP2188399B1 (fr) | 2013-08-28 |
EP2188399B2 true EP2188399B2 (fr) | 2023-05-03 |
Family
ID=39384792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08829848.4A Active EP2188399B2 (fr) | 2007-09-03 | 2008-07-04 | Procede et dispositif d'oxydation/reduction controlee de la surface d'une bande d'acier en defilement continu dans un four a tubes radiants en vue de sa galvanisation |
Country Status (6)
Country | Link |
---|---|
US (1) | US8609192B2 (zh) |
EP (1) | EP2188399B2 (zh) |
JP (1) | JP2010538163A (zh) |
CN (1) | CN101796203B (zh) |
FR (1) | FR2920439B1 (zh) |
WO (1) | WO2009030823A1 (zh) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008009065U1 (de) * | 2008-07-04 | 2008-10-09 | WS Wärmeprozesstechnik GmbH | Strahlungsheizanordnung mit Verzugkompensation |
AT508264B1 (de) * | 2009-10-13 | 2010-12-15 | Ebner Ind Ofenbau | Vorrichtung zur wärmebehandlung von blechbändern |
EP2513582B1 (fr) * | 2009-12-15 | 2018-05-02 | Primetals Technologies France SAS | Installation de préchauffage d'une bande d'acier en défilement continu |
EP2458022B2 (en) * | 2010-11-30 | 2024-01-17 | Tata Steel UK Limited | Method of galvanising a steel strip in a continuous hot dip galvanising line |
DE102011050243A1 (de) | 2011-05-10 | 2012-11-15 | Thyssenkrupp Steel Europe Ag | Vorrichtung und Verfahren zum im Durchlauf erfolgenden Behandeln eines Stahlflachprodukts |
DE102011051731B4 (de) | 2011-07-11 | 2013-01-24 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung eines durch Schmelztauchbeschichten mit einer metallischen Schutzschicht versehenen Stahlflachprodukts |
RU2608257C2 (ru) * | 2011-07-15 | 2017-01-17 | Тата Стил Эймейден Бв | Устройство для производства отожженных сортов стали и способ для производства упомянутых сортов стали |
DE102011056823A1 (de) | 2011-12-21 | 2013-06-27 | Thyssen Krupp Steel Europe AG | Düseneinrichtung für einen Ofen zum Wärmebehandeln eines Stahlflachprodukts und mit einer solchen Düseneinrichtung ausgestatteter Ofen |
JP5365760B1 (ja) * | 2012-04-06 | 2013-12-11 | Jfeスチール株式会社 | 連続式溶融亜鉛めっき設備 |
EP2687611A1 (en) * | 2012-07-17 | 2014-01-22 | Linde Aktiengesellschaft | Method and apparatus for controlling surface porosity of metal materials |
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IT202000013879A1 (it) | 2020-06-10 | 2021-12-10 | Tenova Spa | Gruppo bruciatore a fiamma libera per forni per il trattamento termo-chimico di nastri d’acciaio in impianti per la zincatura a caldo continua. |
CN115404424A (zh) * | 2022-08-16 | 2022-11-29 | 包头钢铁(集团)有限责任公司 | 一种热镀锌钢带表面山水画缺陷的控制方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58214712A (ja) † | 1982-06-07 | 1983-12-14 | Daido Steel Co Ltd | 加熱炉 |
US6902829B2 (en) † | 2001-11-15 | 2005-06-07 | Isg Technologies Inc. | Coated steel alloy product |
EP1936000A1 (en) † | 2005-10-14 | 2008-06-25 | Nippon Steel Corporation | Method of continuous annealing/hot-dipping of steel sheet containing silicon and apparatus for continuous annealing/hot-dipping |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3936543A (en) * | 1974-08-22 | 1976-02-03 | Armco Steel Corporation | Method of coating carbon steel |
JPS58151417A (ja) * | 1982-02-27 | 1983-09-08 | Sumitomo Metal Ind Ltd | 加熱炉 |
JPH0645867B2 (ja) | 1984-05-29 | 1994-06-15 | 大同特殊鋼株式会社 | 雰囲気熱処理制御装置 |
JPH0623605B2 (ja) * | 1987-05-26 | 1994-03-30 | 日本ファーネス工業株式会社 | ラジアントチューブバーナ |
JPH02285057A (ja) | 1989-04-27 | 1990-11-22 | Sumitomo Metal Ind Ltd | 溶融亜鉛めっき用鋼板の連続焼鈍方法 |
DE4339675C1 (de) * | 1993-11-22 | 1995-05-04 | Messer Griesheim Gmbh | Verfahren und Vorrichtung zum Einschmelzen von festen Verbrennungsrückständen |
US5772428A (en) * | 1996-02-09 | 1998-06-30 | Praxair Technology, Inc. | Method and apparatus for heat treatment including H2 /H2 O furnace region control |
AT405944B (de) * | 1996-04-19 | 1999-12-27 | Holderbank Financ Glarus | Verfahren zum reduzieren von oxidischen schlacken |
JPH10185131A (ja) * | 1996-12-24 | 1998-07-14 | Tokyo Gas Co Ltd | ラジアントチューブ加熱装置と加熱炉 |
FR2828888B1 (fr) | 2001-08-21 | 2003-12-12 | Stein Heurtey | Procede de galvanisation a chaud de bandes metalliques d'aciers a haute resistance |
JP4168667B2 (ja) | 2002-05-30 | 2008-10-22 | Jfeスチール株式会社 | 連続溶融亜鉛めっき用インライン焼鈍炉 |
FR2852330B1 (fr) | 2003-03-12 | 2007-05-11 | Stein Heurtey | Procede d'oxydation controlee de bandes avant galvanisation en continu et ligne de galvanisation |
JP4192051B2 (ja) | 2003-08-19 | 2008-12-03 | 新日本製鐵株式会社 | 高強度合金化溶融亜鉛めっき鋼板の製造方法と製造設備 |
JP4770428B2 (ja) * | 2005-11-29 | 2011-09-14 | Jfeスチール株式会社 | 高強度溶融亜鉛めっき鋼板の製造方法および溶融亜鉛めっき鋼板の製造設備 |
BE1017086A3 (fr) * | 2006-03-29 | 2008-02-05 | Ct Rech Metallurgiques Asbl | Procede de recuit et preparation en continu d'une bande en acier a haute resistance en vue de sa galvanisation au trempe. |
-
2007
- 2007-09-03 FR FR0757331A patent/FR2920439B1/fr not_active Expired - Fee Related
-
2008
- 2008-07-04 WO PCT/FR2008/000981 patent/WO2009030823A1/fr active Application Filing
- 2008-07-04 US US12/676,167 patent/US8609192B2/en active Active
- 2008-07-04 CN CN200880105309XA patent/CN101796203B/zh active Active
- 2008-07-04 JP JP2010523552A patent/JP2010538163A/ja active Pending
- 2008-07-04 EP EP08829848.4A patent/EP2188399B2/fr active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58214712A (ja) † | 1982-06-07 | 1983-12-14 | Daido Steel Co Ltd | 加熱炉 |
US6902829B2 (en) † | 2001-11-15 | 2005-06-07 | Isg Technologies Inc. | Coated steel alloy product |
EP1936000A1 (en) † | 2005-10-14 | 2008-06-25 | Nippon Steel Corporation | Method of continuous annealing/hot-dipping of steel sheet containing silicon and apparatus for continuous annealing/hot-dipping |
Non-Patent Citations (2)
Title |
---|
"Radiant tube technology for strip line furnaces", A.Milani et al., IFRF Combustion Journal, Article number 200405, Novembre 2004 † |
Traduction française de JP S58214712A † |
Also Published As
Publication number | Publication date |
---|---|
FR2920439B1 (fr) | 2009-11-13 |
JP2010538163A (ja) | 2010-12-09 |
US20100173072A1 (en) | 2010-07-08 |
CN101796203B (zh) | 2011-12-14 |
WO2009030823A1 (fr) | 2009-03-12 |
EP2188399A1 (fr) | 2010-05-26 |
US8609192B2 (en) | 2013-12-17 |
EP2188399B1 (fr) | 2013-08-28 |
FR2920439A1 (fr) | 2009-03-06 |
CN101796203A (zh) | 2010-08-04 |
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