EP4348143A1 - Vorrichtung und verfahren zur waermebehandlung eines metallbandes - Google Patents
Vorrichtung und verfahren zur waermebehandlung eines metallbandesInfo
- Publication number
- EP4348143A1 EP4348143A1 EP22711203.4A EP22711203A EP4348143A1 EP 4348143 A1 EP4348143 A1 EP 4348143A1 EP 22711203 A EP22711203 A EP 22711203A EP 4348143 A1 EP4348143 A1 EP 4348143A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- strip
- metal strip
- overaging
- overaging chamber
- 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
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
- C21D9/562—Details
- C21D9/563—Rolls; Drums; Roll 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
- F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
-
- 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
- C21D1/34—Methods of heating
-
- 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
- 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
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
-
- 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
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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
-
- 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
- C21D9/573—Continuous furnaces for strip or wire with cooling
-
- 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
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/145—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving along a serpentine path
-
- 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
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
- F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
-
- 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
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
Definitions
- the subject of this invention is one
- Strip treatment plant for the continuous heat treatment of a metal strip with an annealing furnace and a subsequent heatable overaging chamber.
- the metal strip is guided in the aging chamber over a plurality of vertically spaced rollers, so that it meanders through the aging chamber.
- Conventional strip treatment plants consist of several chambers in which the metal strip is first heated to the annealing temperature and kept at this temperature for a certain period of time. It is also possible that a defined temperature curve is followed. Such annealing furnaces are well known. The metal strip is then cooled down according to a specified cooling rate, to a defined one
- overaging chambers are used to keep a metal strip at a specific temperature for a precisely defined period of time (overaging temperature). These chambers are often also referred to as “holding chambers” or “soaking chambers” or also as “partitioning chambers”.
- the temperature within the overaging chamber should be as constant as possible and is between 150°C and 500°C, depending on the metal strip alloy.
- a protective gas atmosphere or a reducing atmosphere for example a hydrogen-nitrogen mixture.
- the metal strip can then be cooled to room temperature or, for example, brought to the coating temperature in galvanizing plants, such as galvanizing plants.
- All of these heat treatment steps affect the mechanical properties of the metal strip. It is important that the metal strip is not only heated to a certain temperature, but also kept at a defined temperature for a precisely defined period of time in the overaging chamber. The heating rates and the cooling rates also influence the strip properties. Metal strips of different thicknesses or compositions also require different heat treatment parameters.
- the dwell time of the metal strip in the overaging chamber is determined by the strip speed and strip length in the overaging furnace.
- the length of the strip in conventional aging chambers is determined by the arrangement of the deflection rollers, so that the dwell time can only be regulated via the strip speed.
- the line speed can only be varied to a very limited extent, since every change in speed naturally also affects the production capacity, the heating rate and the cooling rate.
- the object of the present invention is to provide a strip processing line in which the dwell time of the metal strip in the overaging chamber can be adjusted within broader ranges, so that completely different metal strips can be treated with the same strip processing line, whereby always an optimal residence time in the overaging chamber can be set.
- a strip treatment system according to patent claim 1.
- at least one deflection roller can be moved in the vertical direction, so that the length of the metal strip in the aging chamber can be adjusted.
- the dwell time of the metal strip in the overaging chamber can also be adjusted.
- the dwell time can be adjusted independently of the line speed by changing the length of the line in the chamber.
- one and the same strip processing line can meet different production requirements and can also be flexibly adapted to new conditions.
- the strip speed is set with regard to maximum production capacity.
- the required strip length in the aging chamber is set on the basis of this strip speed, so that the optimal dwell time of the metal strip in the aging chamber, or that specified by the heat cycle, is achieved.
- Loopers also have movable rollers and can accommodate different tape lengths. However, they serve to compensate for different belt speeds in the system. For example, if a new to the plant strip that has been introduced has to be welded to the end of the previous strip and the strip has to be stopped for this purpose, the strip accumulator ensures by releasing stored strip that the strip speed in the subsequent treatment systems does not change.
- loopers are
- Ambient temperature operated in ambient air. They only serve to compensate for different belt speeds and do not carry out any heat treatment.
- one or more upper deflection rollers can be moved in the vertical direction.
- one or more movable deflection rollers are supported or fixed in a specific position, into which they were moved to achieve a predetermined belt length.
- the deflection rollers remain in this defined position anyway. By supporting or fixing the lifting mechanism for the deflection rollers can be relieved.
- the overaging chamber is preferably heated electrically, for example with radiant tubes. However, the gas in the aging chamber can also be sucked off, electrically heated and then injected again.
- the overaging chamber according to the invention is arranged, for example, in front of a coating system.
- the invention also relates to a method for the continuous heat treatment of a metal strip according to patent claim 9.
- a dwell time is set for the heat treatment of the metal strip in the overaging chamber and then the strip length and thus also the dwell time is set by moving at least one deflection roller.
- the metal strip is heat-treated in the overaging chamber in a hydrogen-nitrogen atmosphere.
- FIG. 1 is a schematic view of a prior art overaging chamber.
- FIG. 2 shows an exemplary embodiment of an overaging chamber according to the invention with a movable upper deflection roller
- FIG. 3 shows a further exemplary embodiment of an overaging chamber according to the invention with a movable lower deflection roller; 4 shows an exemplary embodiment of an overaging chamber according to the invention with a plurality of movable upper deflection rollers;
- Figure 6 shows three different roll positions in an overaging chamber 11
- Figures 7 and 8 show an embodiment of a roller motion system
- FIG. 1 shows an overaging chamber 1 according to the prior art.
- a metal strip 6 is introduced from the left into the aging chamber 1 and is deflected vertically upwards by a lower, fixed deflection roller 2 .
- the metal strip 6 is then deflected downwards by 180° by an upper, fixed deflection roller 3.
- the metal strip 6 is thus guided in a meandering manner through the aging chamber 1 until it is finally deflected in the horizontal direction by the last lower deflection roller 2 and leaves the aging chamber 1 .
- the interior of the overaging chamber 1 is tempered to a predetermined temperature, which is typically between 150°C to 500°C lies.
- the housing 4 of the aging chamber 1 is provided with insulation 5 to reduce heat losses.
- the aging chamber is heated by electrically heated radiant tubes 7.
- the metal strip 6 should spend a defined period of time (dwell time) in the overaging chamber 1 .
- FIG. 2 now shows an embodiment of the overaging chamber
- the housing 14 is also provided with an insulation 15 here and the metal strip 6 is also guided in a meandering manner through the aging chamber 11 via lower, fixed deflection rollers 12 and upper, fixed deflection rollers 13 .
- an upper deflection roller 13' can be moved (moved) in the vertical direction. In the present example, it was reduced to half the height.
- the aging chamber is heated by electrically heated radiant tubes 17. These radiant tubes 17 are not arranged here in the area of the movable deflection roller 13', since this would impede the freedom of movement of the deflection roller 13'.
- this overaging chamber 11 to be heated by the supply of hot gas, as will be described further below.
- the strip length of the metal strip 6 in the aging chamber 11 can be changed.
- the dwell time of the metal strip 6 in the overaging chamber 11 can thus be adjusted without the strip speed having to be changed for this purpose.
- the optimum dwell time for a specific metal strip 6 is determined in advance.
- the necessary strip length in the aging chamber 11 is then calculated by specifying a specific strip speed and is set by moving the upper deflection roller 13' or the upper deflection rollers 13'.
- the displaceable upper deflection rollers 13' are preferably no longer moved (moved) during the treatment of a specific metal strip 6, but fixed in their position.
- FIG. 3 shows an overaging chamber 11 in which a lower deflection roller 12' can be moved in the vertical direction.
- FIG. 4 shows an embodiment in which several upper deflection rollers 13' can be moved in the vertical direction.
- the upper deflection rollers 13' can be moved independently of one another.
- FIG. 5 shows a possible embodiment for a mechanism by which the deflection rollers 12' and 13' can be moved in the vertical direction.
- the two gear wheels 21 are coupled to one another via a shaft 22 and connected to a drive 18 . By rotating the shaft 22, the upper deflection roller 13' can be moved in the vertical direction. The arrangement would look similar if a lower deflection roller 12' is to be moved with it.
- Roller supports 19, 19' are provided at different heights on the side of the wall. To this
- the deflection roller 13' or 12' can be laid down or fixed in place on roller supports. Thus, during the heat treatment of a specific metal strip 6, the chains 25 and the drive 18 can be relieved.
- the stationary lower deflection roller 12 and the shaft 22 are mounted outside the aging chamber 11 here. Thus, these bearings 46 do not have to withstand high temperatures.
- the lower deflection roller 12 has a drive 45.
- FIG. 1 Three different strip lengths in an overaging chamber 11 are shown in FIG. 1
- both upper deflection rollers 13' are in their uppermost position, the strip length in the aging chamber 11 is thus at a maximum and the dwell time at a given strip speed is the longest.
- one of the two moveable upper deflection rollers 13' has been lowered somewhat, thus shortening the belt length and thus also the dwell time at a given belt speed.
- both upper deflection rollers 13' are in their lowest position.
- the tape length in the overaging chamber 11 is shortest and thus the dwell time at a given belt speed is also minimized.
- the adjustment mechanism for the movable deflection rollers 12' and 13' is shown in somewhat more detail in FIGS. Since the deflection rollers 12 ′ and 13 ′ are located inside the heated overaging chamber 11 , in which temperatures of up to 500° C. can certainly prevail, they are supported by high-temperature bearings 31 .
- An ordinary roller bearing 27 housed in a bearing housing 26 is sufficient for supporting the shaft 22 .
- the bearing housing 26 is connected to the support structure 30 via a bearing support 29 . On this
- Support structure 30 also rests the motor support 28 and the drive 18.
- An expansion bellows 24 is arranged between the housing 14 of the aging chamber 11 and the bearing housing 26 in order to be able to better compensate for any thermal expansions and to protect against dust.
- FIG. 8 shows the function of the roller support 19, 19'.
- the roller support 19, 19 ' is housed in a housing 32 and can
- Overaging chamber 11 are retracted.
- the housing 32 rests on a steel structure 44 via a substructure 33 .
- a plurality of roller supports 19, 19' are generally arranged at different heights over the height of the chamber, so that the deflection roller 12' or 13' can be supported at different heights.
- the Aging Chamber 11 should have a temperature that is as constant as possible inside for the treatment of a specific metal strip 6; this temperature is between 150° C. and 500° C., depending on the material and treatment. Since there is always heat loss, the chamber must be heated in order to be able to keep the temperature level as constant as possible. Of course, there can be smaller temperature differences within the overaging chamber 11, but these are usually only a few degrees Celsius.
- hot gas for example an inert gas or a reducing gas such as a nitrogen-hydrogen mixture, is blown into the overaging chamber 11 via a supply box 34 arranged on the side and sucked off again by a blower 36 via a suction box 35 on the opposite side.
- the gas is then fed either to an electric heater 40 or to a heat exchanger 39 and fed back into the overaging chamber 11 via a recirculation line 37 .
- the hot gas can be fed to either the heat exchanger 39 or the electric heater 40 via valves 38 and 41 .
- the gas temperature is increased again by the electric heater 40 . If the gas is passed over the heat exchanger 39, it can also be cooled. This is necessary, for example, when switching from one type of steel to another. If, for example, the following steel grade requires a lower overaging temperature, the gas is cooled so that the optimal temperature in the overaging chamber 11 is reached as quickly as possible.
- FIG. 10 shows the heating or cooling device from FIG. 9 again. It can be seen here that the heat exchanger 39 is supplied with cooling water 43 . The motor 42 for the blower 36 is also shown. In this illustration, a hydrogen-nitrogen mixture (HNX) is used as the heating medium.
- HNX hydrogen-nitrogen mixture
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA50422/2021A AT524062B1 (de) | 2021-05-27 | 2021-05-27 | Vorrichtung und verfahren zur waermebehandlung eines metallbandes |
| PCT/EP2022/055269 WO2022248089A1 (de) | 2021-05-27 | 2022-03-02 | Vorrichtung und verfahren zur waermebehandlung eines metallbandes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4348143A1 true EP4348143A1 (de) | 2024-04-10 |
| EP4348143B1 EP4348143B1 (de) | 2026-01-21 |
| EP4348143C0 EP4348143C0 (de) | 2026-01-21 |
Family
ID=80219838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22711203.4A Active EP4348143B1 (de) | 2021-05-27 | 2022-03-02 | Vorrichtung und verfahren zur waermebehandlung eines metallbandes |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20240229185A1 (de) |
| EP (1) | EP4348143B1 (de) |
| JP (1) | JP7813301B2 (de) |
| KR (1) | KR20240013719A (de) |
| CN (1) | CN117396716A (de) |
| AT (1) | AT524062B1 (de) |
| BR (1) | BR112023020447A2 (de) |
| CA (1) | CA3217509A1 (de) |
| TW (1) | TWI810861B (de) |
| WO (1) | WO2022248089A1 (de) |
| ZA (1) | ZA202309103B (de) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529628U (de) * | 1975-07-07 | 1977-01-22 | ||
| JPS63161125A (ja) * | 1986-12-23 | 1988-07-04 | Sumitomo Metal Ind Ltd | 連続焼鈍方法及び連続焼鈍炉 |
| JPH04202651A (ja) * | 1990-11-30 | 1992-07-23 | Kawasaki Steel Corp | 連続浸炭・浸窒炉 |
| DE29822325U1 (de) * | 1998-12-04 | 1999-03-04 | Mannemann AG, 40213 Düsseldorf | Vertikaler Bandspeicher zur Überbrückung von Bandlaufunterbrechungen |
| CN202936001U (zh) * | 2012-11-20 | 2013-05-15 | 宁波奇亿金属有限公司 | 用于钢带卸卷的防偏卷结构 |
| DE102015001438A1 (de) * | 2015-02-04 | 2016-08-18 | Bernhard Engl | Flexible Wärmebehandlungsanlage für metalisches Band |
| DE102016011047A1 (de) * | 2016-09-13 | 2018-03-15 | Sms Group Gmbh | Flexible Wärmebehandlungsanlage für metallisches Band in horizontaler Bauweise |
| US11591675B2 (en) * | 2017-02-20 | 2023-02-28 | Nippon Steel Corporation | Steel sheet and method for producing same |
| FR3063737B1 (fr) * | 2017-03-13 | 2020-06-26 | Fives Stein | Ligne continue de recuit ou de galvanisation comprenant un bloc tensionneur entre deux fours consecutifs |
| KR101951945B1 (ko) * | 2017-12-01 | 2019-02-25 | 주식회사포스코 | 광휘 소둔 라인의 루퍼 장치 |
| AT520637B1 (de) * | 2018-07-31 | 2019-06-15 | Andritz Ag Maschf | Verfahren zur verbesserung der beschichtbarkeit eines metallbandes |
| CN111793748B (zh) | 2020-07-16 | 2022-03-11 | 重庆赛迪热工环保工程技术有限公司 | 大型立式退火炉的失电消张方法 |
-
2021
- 2021-05-27 AT ATA50422/2021A patent/AT524062B1/de active
-
2022
- 2022-03-02 JP JP2023571185A patent/JP7813301B2/ja active Active
- 2022-03-02 KR KR1020237034147A patent/KR20240013719A/ko active Pending
- 2022-03-02 CN CN202280037599.9A patent/CN117396716A/zh active Pending
- 2022-03-02 WO PCT/EP2022/055269 patent/WO2022248089A1/de not_active Ceased
- 2022-03-02 US US18/562,550 patent/US20240229185A1/en active Pending
- 2022-03-02 CA CA3217509A patent/CA3217509A1/en active Pending
- 2022-03-02 BR BR112023020447A patent/BR112023020447A2/pt active Search and Examination
- 2022-03-02 EP EP22711203.4A patent/EP4348143B1/de active Active
- 2022-03-24 TW TW111111030A patent/TWI810861B/zh active
-
2023
- 2023-09-27 ZA ZA2023/09103A patent/ZA202309103B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP2024522254A (ja) | 2024-06-12 |
| ZA202309103B (en) | 2024-10-30 |
| BR112023020447A2 (pt) | 2023-12-05 |
| KR20240013719A (ko) | 2024-01-30 |
| CN117396716A (zh) | 2024-01-12 |
| TW202248427A (zh) | 2022-12-16 |
| AT524062A4 (de) | 2022-02-15 |
| TWI810861B (zh) | 2023-08-01 |
| WO2022248089A1 (de) | 2022-12-01 |
| EP4348143B1 (de) | 2026-01-21 |
| AT524062B1 (de) | 2022-02-15 |
| JP7813301B2 (ja) | 2026-02-12 |
| US20240229185A1 (en) | 2024-07-11 |
| EP4348143C0 (de) | 2026-01-21 |
| CA3217509A1 (en) | 2022-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69105297T2 (de) | Ofen zum Heizen von Glasscheiben. | |
| DE3785661T2 (de) | Verfahren zur herstellung eines nichtalternden feuerverzinkten stahlbleches. | |
| DE69708482T2 (de) | Durchlaufglühverfahren von Metallband in verschiedenen Schutzgasen und Vorrichtung | |
| EP2955239B1 (de) | Verfahren und erwärmungsanlage für das serienmässige erwärmen von blechplatinen mit ausbildung unterschiedlicher temperaturzonen | |
| AT511034B1 (de) | Verfahren zum kontrollieren einer schutzgasatmosphäre in einer schutzgaskammer zur behandlung eines metallbandes | |
| EP2531624B1 (de) | Vorrichtung und verfahren zum wärmebehandeln von stahldrähten | |
| DE2742320C3 (de) | Vorrichtung zum Kühlen von langgestreckten erwärmten Werkstücken | |
| DE3034528A1 (de) | Verfahren und vorrichtung zum abkuehlen von warmgewalztem draht | |
| AT524062B1 (de) | Vorrichtung und verfahren zur waermebehandlung eines metallbandes | |
| EP0179050B1 (de) | Ofen zur Wärmebehandlung von Leichtmetallbarren | |
| DE2163268B2 (de) | Ofen zum erwaermen von glasplatten | |
| EP2818571B1 (de) | Eindiffundieren von Aluminium-Silizium in eine Stahlblechbahn | |
| EP1948834A2 (de) | Verfahren und vorrichtung zur kontinuierlichen ausbildung eines bainitgefüges in einem kohlenstoffstahl, insbesondere in einem bandstahl | |
| DE102016007845A1 (de) | Verfahren zur Schroffkühlung von Stahlband während des Härte- und Vergüteprozesses im Durchlauf und Vorrichtung zur Durchführung des Verfahrens | |
| LU83201A1 (de) | Verfahren und vorrichtung zum kontinuierlichen abschrecken von glastafeln | |
| EP3201369B1 (de) | Verfahren zum ausbilden eines stahlbandes mit unterschiedlichen mechanischen eigenschaften über die breite des bandes | |
| DE102005047434B4 (de) | Verfahren zum Betreiben einer Anlage zur Wärmebehandlung von Flachglas | |
| EP4232609A1 (de) | Vertikalofen zur kontinuierlichen wärmebehandlung eines metallbandes | |
| DE102016011047A1 (de) | Flexible Wärmebehandlungsanlage für metallisches Band in horizontaler Bauweise | |
| AT526925B1 (de) | Temperiereinrichtung | |
| DE102015001438A1 (de) | Flexible Wärmebehandlungsanlage für metalisches Band | |
| DE848049C (de) | Vorbehandlung von stark unebenem Band- oder Tafelblech vor dem Gluehen im Durchlaufofen | |
| DE746285C (de) | Verfahren und Ofen zum Gluehen von Blechstapeln o. dgl. | |
| DE1421785C (de) | Verfahren zum Abstutzen einer Glas tafel zu deren Behandlung bei einer Glas Verformungstemperatur | |
| DD260014A1 (de) | Verfahren und einrichtung zur herstellung von stabsstahl aus einem mikrolegierten block oder knueppel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| 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 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20231003 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20251002 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: F10 Free format text: ST27 STATUS EVENT CODE: U-0-0-F10-F00 (AS PROVIDED BY THE NATIONAL OFFICE) Effective date: 20260121 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| U01 | Request for unitary effect filed |
Effective date: 20260127 |
|
| U07 | Unitary effect registered |
Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT RO SE SI Effective date: 20260130 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20260324 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: 20260301 Year of fee payment: 5 |
|
| REG | Reference to a national code |
Ref country code: SK Ref legal event code: T3 Ref document number: E 48045 Country of ref document: SK |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SK Payment date: 20260317 Year of fee payment: 5 |
|
| U20 | Renewal fee for the european patent with unitary effect paid |
Year of fee payment: 5 Effective date: 20260326 |