EP2671035A1 - Method for controlling a protective gas atmosphere in a protective gas chamber for the treatment of a metal strip - Google Patents
Method for controlling a protective gas atmosphere in a protective gas chamber for the treatment of a metal stripInfo
- Publication number
- EP2671035A1 EP2671035A1 EP12715806.1A EP12715806A EP2671035A1 EP 2671035 A1 EP2671035 A1 EP 2671035A1 EP 12715806 A EP12715806 A EP 12715806A EP 2671035 A1 EP2671035 A1 EP 2671035A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- protective gas
- pressure
- gas
- sealing
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 230000001276 controlling effect Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 200
- 238000013178 mathematical model Methods 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 description 14
- 239000000126 substance Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000011217 control strategy Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005246 galvanizing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 2
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/003—Supply-air or gas filters
-
- 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
- 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
- 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
- C21D9/562—Details
- C21D9/565—Sealing arrangements
-
- 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
-
- 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
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
-
- 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
Definitions
- the subject of this invention is a method for controlling the atmosphere in a protective gas chamber for the continuous treatment of metal strips, wherein the metal strip via locks in and out of the
- Protective gas chamber is guided and wherein at least one of the locks has two or more sealing elements for the passing metal strip, so that forms at least one sealing chamber between the sealing elements.
- the tape is protected against oxidation by using a reducing atmosphere of a nitrogen-hydrogen mixture.
- Rapid cooling range (jet cooling section) a high hydrogen content (15 to 80% H2) im) and in the remaining furnace area a low hydrogen content ( ⁇ 5% H2) required.
- the furnace must be sealed against the environment and against other aggregates by appropriate locks.
- the gas flow between different furnace chambers or between a furnace chamber and the environment is caused by the following factors: a. ) Imbalance of the atmosphere gas flows (inlet / outlet): The quantity of gas injected into a certain chamber does not correspond to the quantity of gas taken from the same chamber
- single seals are used, which are formed by a pair of metallic sealing rolls, or a pair of sealing flaps, or a combination of a sealing flap and a sealing roll.
- the metal strip is then fed through the nip / flap gap into the furnace.
- Such sealing locks are used, for example, in continuous annealing plants and in continuous galvanizing plants in order to achieve a separation between the furnace atmosphere and the outside area (inlet seals or spout nozzle seal) and between two different combustion chambers.
- a combustion chamber with direct firing and the second combustion chamber can be heated by means of jet blasting.
- the combustion of products of combustion from a direct firing furnace into a blast furnace heated furnace is prohibited, but larger amounts of gas may flow in the opposite direction.
- a discharge of exhaust gases from the directly fired furnace is prohibited to the outside, but a certain air flow from the environment is allowed in the oven.
- furnace chambers fired with lance tubes avoid the entry of air, allowing a certain amount of inert gas to escape from the furnace into the environment. The same applies to the trunk area when the zinc pot is removed.
- the gas flow rate between two furnace chambers through conventional gates is zero and in one direction
- the composition of the atmosphere gas can not be controlled precisely because unavoidable pressure fluctuations in both chambers would cause an alternating atmosphere gas flow in one direction or the other.
- a conventional double seal with injection of a constant amount of nitrogen is also sensitive to the pressure fluctuations in the combustion chambers.
- the chemical composition of the atmosphere gas in the combustion chambers can not be precisely controlled because the injected
- the inlet seal usually consists of a pair of sealing rolls of metal and a series of curtains.
- Atmospheric separation within the furnace is normally accomplished by a simple opening in a chamotte wall and the exit seal consists of either soft-coated rolls (hypalon or elastomer) or refractory fibers.
- Such a sealing system has the disadvantage that in the inlet seal a permanent leakage of hydrogen-containing atmosphere gas through the nip (1 to 2 mm) takes place. This gas is constantly burning.
- the inner seal leads to a poor separation performance due to the opening size (100 to 150 mm) and the outlet seal can not be used at high temperature> 200 ° C.
- the object of the invention is to provide a control method for the control of the gas flow through the lock, which ensures a high degree of atmospheric gas separation and reduces the atmospheric gas consumption.
- This object is achieved by a control method in which the gas pressure in at least one protective gas chamber and in the sealing chamber of the lock is measured and in which the pressure in the sealing chamber is controlled in such a way that during operation of the differential pressure (APoichtung) between the
- Protection gas chamber and the sealing chamber (ichtung AP D, k) largely above or below a predetermined value for the critical differential pressure is maintained.
- the critical differential pressure is the value at which the gas flow between protective gas chamber and lock reverses. At the critical differential pressure (AP DiC htung, k) there should be no gas flow between the
- differential pressure (AP D i C htung, k) does not necessarily have to have the value zero, although at this value the pressures in the protective gas chamber and in the sealing chamber would be the same, but nevertheless a gas flow can occur between these chambers, since the Metal band transported on its surface a certain amount of gas.
- the pressure in this chamber can be controlled quickly and precisely by injecting or removing a small amount of gas.
- the differential pressure (APoichtung) near the value for the critical differential pressure (APoichtung.k) are held.
- the flow rate of the atmosphere gas into or out of the protective gas chamber is reduced to a minimum.
- the critical pressure differential (AP D ichung, k) between 0 and 100 Pa, and the distance between the set and critical differential pressure between 5 and 20 Pa.
- This method allows a high separation efficiency of the atmospheres between protective gas chambers with relatively low protective gas consumption (from 10 to 200 Nm 3 / h). It also allows a good separation of the protective gas chamber from the environment.
- the pressure in the seal chamber can be controlled either by a control valve and a gas supply or by a control valve and a vacuum source.
- the vacuum source may be, for example, a suction fan, a fireplace or the environment.
- the method according to the invention is particularly suitable for NGOs
- the transfer of zinc dust from the trunk into the furnace can also be minimized in galvanizing lines, particularly in systems for zinc-aluminum coating of metal strips.
- the lock according to the invention is arranged between the protective gas chamber and a further treatment chamber with a protective gas atmosphere.
- the metal band can either first by the other
- the predetermined value for the critical differential pressure is calculated via a mathematical model, preferably the speed of the metal strip, the gap opening of the two
- FIG. 1 shows a first variant of the invention with a gas supply system for the sealing chamber.
- FIG. 2 shows the pressure curve in the chambers for a control method for the first variant according to FIG. 1;
- FIG. 3 shows the pressure curve in the chambers for a further control method for the first variant according to FIG. 1;
- FIG. 4 shows a second variant of the invention in which the sealing chamber is connected to a vacuum system
- FIG. 5 shows the pressure curve in the chambers for a control method for the second variant according to FIG. 4;
- FIG. 6 shows the pressure curve in the chambers for a further control method for the second variant according to FIG. 4;
- the control method is now using a lock 4 between a
- Secondary chamber 1 (further treatment chamber 1) and a protective gas chamber 2 explained.
- the same principle applies even if the lock 4 between a Protective gas chamber 2 and the outside is located, the outside area is considered as a filled with constant air pressure secondary chamber 1.
- F D flow rate of the injected into the seal chamber 7 or derived atmosphere gas
- the auxiliary chamber 1 and the protective gas chamber 2 are darg Robinson with the intervening lock 4.
- the lock 4 consists of a first sealing element 5 and of a second sealing element 6, between them is the sealing chamber 7.
- compositions of the protective gas (N 2 content, H 2 content, dew point) in the two chambers 1 and 2 and the respective pressure P1 and P2 in the chambers 1 and 2 are controlled by two separate mixing stations. This control of the mixing stations is done by conventional controls. Ie the chemical The composition of the protective gas atmosphere is controlled by adjusting the N2, H2, and the H 2 O content in the injected atmosphere gas and the
- Pressure control is carried out by adjusting the flow rate of the injected into the chambers 1, 2 atmosphere gas.
- the atmosphere gas is discharged through fixed or adjustable openings from the chambers 1, 2.
- the sealing elements 5 and 6 can each be formed by two rollers or two flaps or a roller and a flap, between which the metal strip 3 is passed.
- the gap between the rollers or flaps is defined taking into account the properties (chemical composition, temperature) of the atmosphere gas in chamber 1 (or 2) and the strip thickness. It can be fixed or adjustable, depending on the variation in the properties of the atmosphere gas and the band dimensions. If the gap is adjustable, it is preset according to strip thickness, chemical composition of the atmosphere gas and according to the strip temperature.
- the size of the opening in the sealing elements 5 and 6 is the gap, the band dimensions (width, thickness), as well as the remaining
- the opening in the sealing elements 5, 6 must be correspondingly small.
- Seal elements 5, 6 can be adjusted by the control valve 10.
- the control valve 10 regulates the flow rate of the injected or discharged into the seal chamber 7 gas.
- the control valve 10 is connected to a gas supply 8, the pressure control in the seal chamber 7 thus takes place via a control of the gas supply into the seal chamber. 7
- the chamber pressures P1 and P2 are controlled by two independent pressure control circuits.
- the pressure P D is kept close to the pressure P2 in the protective gas chamber 2.
- APoichtung is set with P D - P2.
- the pressure PD is controlled so that APoichtung remains largely constant, even if the pressure P2 varies.
- the aim is to prevent the entry of atmospheric gas through the lock 4 into the protective gas chamber 2, so that the chemical composition in this chamber can be regulated.
- the goal is also to minimize the escape of atmospheric gas from the protective gas chamber 2, so that the
- Gas consumption of the protective gas chamber 2 can be minimized.
- Figure 2 shows the pressure curve in the chambers 1, 2, and7.
- the pressure P1 in the sub chamber 1 is set lower than the pressure P2 in the protective gas chamber 2, while the pressure in the sealing chamber PD is set between P1 and P2 but only slightly lower than the pressure P2 in the protective gas chamber 2.
- the flow rate FD is determined by the pressure control loop for the control of APoichtung, while the
- Flow rate F1 from F2 + F D results.
- This rule strategy is suitable for applications in which the chemical composition in the protective gas chamber 2 must be optimally controlled. For example, this strategy can be used well in continuous annealing plants (CAL) and in continuous Zinc (CGL) plants with high H2 content.
- the chamber with the high H 2 content forms the aforementioned protective gas chamber 2.
- This control strategy is also suitable for the warm-up, dip and radiant tube cooling chambers with a high h 2 content in the electrical steel heat treatment. Again, the chamber with the high H 2 content forms the chamber 2.
- the aim is to prevent leakage of atmosphere gas from the protective gas chamber 2, so that the secondary chamber 1 is not contaminated by a component of the protective gas chamber 2. But it should also be the entry of
- Atmospheric gas in the protective gas chamber 2 are minimized.
- FIG. 3 shows the pressure curve in the chambers 1, 2 and 7, wherein the pressure P1 in the secondary chamber 1 is set to be lower than the pressure P2 in the protective gas chamber 2.
- the pressure P D in the sealing chamber 7 becomes higher than P1 and P2, but only slightly higher than the pressure P2 in the
- Atmospheric gas in or out of chamber 2 is controlled via the AP D i C value.
- Differential pressure AP D ichtung k held, so no escaping the atmosphere gas from the protective gas chamber 2.
- the regulation of AP ichtung D as close to the value of k can APDichtung the flow rate F2 of air flowing into chamber 2 Atmospheric gases are minimized.
- the flow rate FD is determined by the pressure control loop for the control of APoichtung, while the flow rate F1 from F D - F2 results.
- Atmospheric gas may escape from the protective gas chamber 2 and in which the protective gas chamber 2 may not be contaminated by atmospheric gas from the secondary chamber 1.
- the protective gas chamber 2 may not be contaminated by atmospheric gas from the secondary chamber 1.
- it can be used to control the input or output lock in FAL, CAL and CGL.
- the furnace forms the protective gas chamber 2. It is also suitable for the lock control in zinc-aluminum coating process (the trunk forms the
- FIG. 4 shows a variant in which the sealing chamber 7 is connected to a vacuum source 9.
- the regulation of the gas pressure in the sealing chamber 7 takes place via a
- the pressure PD in the seal chamber 7 is continuously adjusted.
- the flow rate F D of the outflowing gas is controlled by a control valve 10, wherein the Unterduck is generated by means of a suction fan or by the natural chimney draft.
- the control strategy is not dependent on the direction of tape travel.
- the pressure in the sealing chamber PD is controlled so that AP D i C hht remains as constant as possible, even if the pressure P2 varies in the protective gas chamber 2.
- the aim is to prevent leakage of atmosphere gas from the protective gas chamber 2, so that the secondary chamber 1 is not contaminated by a component of the protective gas chamber 2, but also to minimize the entry of atmosphere gas into the protective gas chamber 2, so that the chemical
- Composition in the protective gas chamber 2 can be regulated.
- FIG. 5 shows the pressure progression in the chambers 1, 2 and 7 for a lock 4 according to FIG. 4.
- the pressure P1 in the auxiliary chamber 1 is adjusted so that it is higher than the pressure P2 in the protective gas chamber 2.
- the pressure P D in the seal chamber 7 is set between P1 and P2, but only slightly higher than the pressure P2 in the protective gas chamber 2.
- the flow rate F2 of the atmosphere gas into or out of chamber 2 is regulated via the APoichtung value.
- the flow rate Fo is determined by the pressure control loop for the control of APoichtung, while the flow rate F1 results from F2 + F D.
- Protective gas chamber 2 is lower than in the auxiliary chamber. 1 2.) Contamination of the protective gas chamber 2 should be avoided:
- the aim is to prevent the entry of atmospheric gas into the protective gas chamber 2 (so that the chemical composition in the
- Protective gas chamber 2 can be controlled), but also to minimize the escape of atmospheric gas from the protective gas chamber 2 (thus the
- Gas consumption of the protective gas chamber 2 can be minimized.
- Figure 6 shows the pressure variation in the chambers 1, 2 and 7.
- the pressure P1 in the sub chamber 1 is set higher than the pressure P2 in the protective gas chamber 2, while the pressure P D in the sealing chamber 7 is less than P1 and P2, but only slightly lower than the pressure P2 in the protective gas chamber 2 is set.
- APoichtung is negative here.
- the flow rate F2 of the atmosphere gas into or out of chamber 2 is regulated by the pH value.
- AP seal determines while flow rate F1 results from FD + F1.
- This control strategy is well suited if the chemical composition in the protective gas chamber 2 must be optimally controlled, but the outflow of atmospheric gas from the protective gas chamber 2 must be minimized or if the chemical composition in both chambers 1, 2 must be optimally controlled. Since the leakage amount of the gas can not be measured through a sealing member (5, 6), a mathematical model has been developed for their calculation.
- Atmospheric gases are calculated.
- Line Speed is the speed of the treated tape.
- Flow of the atmosphere gas FD, F1, F2 The flow F1 or F2 of the atmosphere gas through the sealing elements 5, 6 is considered as the parameter to be controlled.
- the mathematical model is based on a formula that represents the relationship between the parameters. The calculation requires little
- Vg flow rate of in or out of the seal chamber
- f1 and f2 are mathematical formulas that depend on the construction of the lock 4
- the parameters of the mathematical model are tuned by means of computer-controlled simulation software in offline mode.
- This critical value AP D i C Mung, k serves as a reference for the pressure regulation in the sealing chamber 7.
- the target value for the differential pressure AP D i C h depends on the calculated critical differential pressure AP DiC htung, k, as in the above Examples have been described.
- differential pressure AP D i C hht can also be negative (eg, in Fig. 2 and Fig. 6).
- Differential pressure APoichtung is below the value for the critical differential pressure APDichtung.k, it should then be understood that the value for the differential pressure AP seal continues to be in the negative range than the value for the critical one
- the mathematical model is calculated on the one hand for the calculation of the gap to be set of the two sealing elements 5, 6 taking into account the
- the adjustment parameters calculated with the mathematical model form the setpoint values for the control of the lock.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12715806T PL2671035T3 (en) | 2011-02-04 | 2012-01-30 | Method for controlling a protective gas atmosphere in a protective gas chamber for the treatment of a metal strip |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA152/2011A AT511034B1 (en) | 2011-02-04 | 2011-02-04 | METHOD FOR CONTROLLING A PROTECTION GASATOMOS IN A PROTECTIVE GAS CHAMBER FOR TREATING A METAL STRIP |
PCT/AT2012/000013 WO2012103563A1 (en) | 2011-02-04 | 2012-01-30 | Method for controlling a protective gas atmosphere in a protective gas chamber for the treatment of a metal strip |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2671035A1 true EP2671035A1 (en) | 2013-12-11 |
EP2671035B1 EP2671035B1 (en) | 2014-12-03 |
Family
ID=45998184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12715806.1A Active EP2671035B1 (en) | 2011-02-04 | 2012-01-30 | Method for controlling a protective gas atmosphere in a protective gas chamber for the treatment of a metal strip |
Country Status (13)
Country | Link |
---|---|
US (1) | US8893402B2 (en) |
EP (1) | EP2671035B1 (en) |
JP (1) | JP6061400B2 (en) |
KR (1) | KR101807344B1 (en) |
CN (1) | CN103380346B (en) |
AT (1) | AT511034B1 (en) |
BR (1) | BR112013019485B1 (en) |
CA (1) | CA2825855C (en) |
ES (1) | ES2531482T3 (en) |
PL (1) | PL2671035T3 (en) |
RU (1) | RU2592653C2 (en) |
WO (1) | WO2012103563A1 (en) |
ZA (1) | ZA201306439B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT511034B1 (en) * | 2011-02-04 | 2013-01-15 | Andritz Tech & Asset Man Gmbh | METHOD FOR CONTROLLING A PROTECTION GASATOMOS IN A PROTECTIVE GAS CHAMBER FOR TREATING A METAL STRIP |
DE102011079771B4 (en) | 2011-07-25 | 2016-12-01 | Ebner Industrieofenbau Gmbh | Roller changing device and method for changing a roller for ovens |
CN103305744B (en) * | 2012-03-08 | 2016-03-30 | 宝山钢铁股份有限公司 | A kind of production method of high quality silicon steel normalizing substrate |
JP6518943B2 (en) * | 2015-12-09 | 2019-05-29 | Jfeスチール株式会社 | Sealing apparatus and sealing method in continuous annealing furnace |
DE102018124521A1 (en) * | 2018-10-04 | 2020-04-09 | Brückner Maschinenbau GmbH & Co. KG | Treatment plant for a flexible material web that can be passed through a treatment furnace, in particular plastic film |
CN112212676B (en) * | 2020-09-29 | 2022-06-07 | 安德里茨(中国)有限公司 | Material thickness measuring mechanism, closed-loop control distributing device and dryer |
DE102021109326A1 (en) | 2021-04-14 | 2022-10-20 | Vacuumschmelze Gmbh & Co. Kg | Process for the heat treatment of at least one sheet of a soft magnetic alloy |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026787A (en) * | 1974-01-25 | 1977-05-31 | Coulter Information Systems, Inc. | Thin film deposition apparatus using segmented target means |
SU663733A1 (en) * | 1977-12-29 | 1979-05-28 | Ордена Трудового Красного Знамени Научно-Исследовательский Институт Автомобильной Промышленности | Endogas receiving and distributing system |
JPS61194119A (en) * | 1985-02-21 | 1986-08-28 | Nippon Steel Corp | Cooling installation train for steel strip |
IT1229078B (en) * | 1988-03-16 | 1991-07-18 | Air Liquide | METAL ARTICLES TREATMENT PROCESS AND DEVICE FOR TREATMENT. |
US4896813A (en) * | 1989-04-03 | 1990-01-30 | Toyo Kohan Co., Ltd. | Method and apparatus for cold rolling clad sheet |
US5364080A (en) * | 1991-10-16 | 1994-11-15 | Combustion Concepts, Inc. | High efficient heat treating and drying apparatus and method |
TW199911B (en) * | 1991-12-04 | 1993-02-11 | Armco Steel Co Lp | |
JP2827753B2 (en) * | 1992-09-08 | 1998-11-25 | 日本鋼管株式会社 | Apparatus for preventing mixing of atmospheric gases in different types of furnaces in continuous processing furnaces |
JP3094793B2 (en) * | 1994-06-22 | 2000-10-03 | 日本鋼管株式会社 | Direct fire furnace preheating furnace inlet sealing method and apparatus |
JPH0920927A (en) * | 1995-07-03 | 1997-01-21 | Nippon Steel Corp | Method for partioning atmosphere in continuous annealing furnace |
RU2092581C1 (en) * | 1995-08-21 | 1997-10-10 | Акционерное общество открытого типа "ЮВЭнергочермет" | System for regulation of protective atmosphere of furnace |
JPH0978124A (en) * | 1995-09-08 | 1997-03-25 | Nippon Steel Corp | Method for simultaneously controlling pressure and component in compound heat treatment furnace |
JPH11106833A (en) * | 1997-10-07 | 1999-04-20 | Daido Steel Co Ltd | Continuous heat treatment furnace |
US20140048494A1 (en) * | 1998-04-20 | 2014-02-20 | Frederick Lee Simmons, Jr. | Apparatus and method of creating a concentrated supersaturated gaseous solution having ionization potential |
SE515593C2 (en) * | 1999-03-01 | 2001-09-03 | Avesta Sheffield Ab | Apparatus for heating a metal band |
JP2001172725A (en) * | 1999-12-16 | 2001-06-26 | Ov S Engineering Kk | In-furnace atmosphere control device in rolling metal strip |
FR2802552B1 (en) * | 1999-12-17 | 2002-03-29 | Stein Heurtey | METHOD AND APPARATUS FOR REDUCING WEB FOLDING IN A QUICK COOLING AREA OF A HEAT TREATMENT LINE |
BE1014880A4 (en) * | 2002-06-14 | 2004-05-04 | Ct Rech Metallurgiques Asbl | Management of gas flow in section reactive. |
BE1015109A3 (en) * | 2002-09-13 | 2004-10-05 | Drever Internat S A | Process traitemant thermal metal strip. |
FR2897620B1 (en) * | 2006-02-21 | 2008-04-04 | Stein Heurtey | METHOD AND DEVICE FOR COOLING AND STABILIZING BAND IN A CONTINUOUS LINE |
FR2903122B1 (en) * | 2006-06-30 | 2008-09-12 | Stein Heurtey | DEVICE FOR SECURING AN OVEN EQUIPPED WITH FAST HEATING AND COOLING OPERATING UNDER CONTROLLED ATMOSPHERE. |
CN201250260Y (en) * | 2008-08-22 | 2009-06-03 | 宝山钢铁股份有限公司 | Sealing device used between annealing furnace air injection slow cooling section and water quenching quick cooling section |
JP5212025B2 (en) * | 2008-11-05 | 2013-06-19 | 新日鐵住金株式会社 | Atmospheric gas flow rate control method, continuous heat treatment furnace and tube using the same |
FR2940979B1 (en) * | 2009-01-09 | 2011-02-11 | Fives Stein | METHOD FOR COOLING A THREADED METAL STRIP |
FR2940978B1 (en) * | 2009-01-09 | 2011-11-11 | Fives Stein | METHOD AND COOLING SECTION OF A METAL BAND THROUGH A PROJECTION OF A LIQUID |
JP5364080B2 (en) * | 2010-11-24 | 2013-12-11 | 株式会社小松製作所 | Electric motor control device, electric motor control method, and construction machine equipped with electric motor control device |
AT511034B1 (en) * | 2011-02-04 | 2013-01-15 | Andritz Tech & Asset Man Gmbh | METHOD FOR CONTROLLING A PROTECTION GASATOMOS IN A PROTECTIVE GAS CHAMBER FOR TREATING A METAL STRIP |
-
2011
- 2011-02-04 AT ATA152/2011A patent/AT511034B1/en active
-
2012
- 2012-01-30 EP EP12715806.1A patent/EP2671035B1/en active Active
- 2012-01-30 CA CA2825855A patent/CA2825855C/en active Active
- 2012-01-30 US US13/982,348 patent/US8893402B2/en active Active
- 2012-01-30 JP JP2013552060A patent/JP6061400B2/en active Active
- 2012-01-30 BR BR112013019485-5A patent/BR112013019485B1/en active IP Right Grant
- 2012-01-30 CN CN201280007304.XA patent/CN103380346B/en active Active
- 2012-01-30 WO PCT/AT2012/000013 patent/WO2012103563A1/en active Application Filing
- 2012-01-30 ES ES12715806.1T patent/ES2531482T3/en active Active
- 2012-01-30 KR KR1020137022825A patent/KR101807344B1/en active IP Right Grant
- 2012-01-30 RU RU2013138601/02A patent/RU2592653C2/en active
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Non-Patent Citations (1)
Title |
---|
See references of WO2012103563A1 * |
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RU2013138601A (en) | 2015-03-10 |
BR112013019485B1 (en) | 2021-03-09 |
JP2014505795A (en) | 2014-03-06 |
WO2012103563A1 (en) | 2012-08-09 |
ZA201306439B (en) | 2014-10-29 |
AT511034A1 (en) | 2012-08-15 |
EP2671035B1 (en) | 2014-12-03 |
JP6061400B2 (en) | 2017-01-18 |
PL2671035T3 (en) | 2015-04-30 |
ES2531482T3 (en) | 2015-03-16 |
CN103380346B (en) | 2015-08-05 |
KR20140022003A (en) | 2014-02-21 |
CA2825855C (en) | 2018-05-01 |
BR112013019485A2 (en) | 2019-11-05 |
KR101807344B1 (en) | 2017-12-08 |
US8893402B2 (en) | 2014-11-25 |
CN103380346A (en) | 2013-10-30 |
US20130305559A1 (en) | 2013-11-21 |
CA2825855A1 (en) | 2012-08-09 |
RU2592653C2 (en) | 2016-07-27 |
AT511034B1 (en) | 2013-01-15 |
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