EP2722112A1 - Dispositif et procédé destinés au traitement continu d'une bande métallique - Google Patents

Dispositif et procédé destinés au traitement continu d'une bande métallique Download PDF

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Publication number: EP2722112A1
Authority: EP; European Patent Office
Prior art keywords: cooling section; control device; position control; section; metal strip
Prior art date: 2012-10-19
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

Application number

EP13183368.3A

Other languages

German (de)

English (en)

Other versions

EP2722112B1 (fr

EP2722112B2 (fr

Inventor

Andreas Noé

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Redex SA

Original Assignee

BWG Bergwerk und Walzwerk Maschinenbau GmbH

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2012-10-19

Filing date

2013-09-06

Publication date

2014-04-23

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=49170558&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2722112(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2013-09-06 Application filed by BWG Bergwerk und Walzwerk Maschinenbau GmbH filed Critical BWG Bergwerk und Walzwerk Maschinenbau GmbH

2013-09-06 Priority to PL13183368T priority Critical patent/PL2722112T3/pl

2014-04-23 Publication of EP2722112A1 publication Critical patent/EP2722112A1/fr

2015-06-24 Publication of EP2722112B1 publication Critical patent/EP2722112B1/fr

2025-03-26 Application granted granted Critical

2025-03-26 Publication of EP2722112B2 publication Critical patent/EP2722112B2/fr

Status Active legal-status Critical Current

2033-09-06 Anticipated expiration legal-status Critical

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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
- C21D9/573—Continuous furnaces for strip or wire with cooling
- 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
- 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
- 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
- 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
- C21D9/564—Tension control
- 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
- C21D9/63—Continuous furnaces for strip or wire the strip being supported by a cushion of gas
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

Definitions

the invention relates to a device for the continuous treatment of a metal strip, in particular a metal strip made of aluminum (or an aluminum alloy) or non - ferrous metal (or a non - ferrous metal alloy), with at least one tempering device, through which the metal strip is passed floating and with a belt running device, with the Position of the metal strip in the strip running plane and can be controlled or regulated transversely to the strip running direction, wherein the tempering device has at least one inlet-side heating section and a downstream cooling section.
the metal strip preferably has a thickness of 0.1 mm to 6 mm.
the tempering device is preferably a strip float furnace having a heating section and a cooling section.
the heating section usually consists of several heating zones (heating or holding zones) and the cooling section usually consists of several cooling zones.
the metal strip is heated to a determined (setpoint) temperature, if appropriate kept at this temperature for a specific time and then cooled again.
the passage through the furnace is non-contact, by the band between nozzles (air nozzles), which are acted upon by corresponding air pressure, floated.
the cooling in the cooling zones can be done by air, water or a combination of air and water.
Such strip-type furnaces with heating section on the one hand and cooling section on the other hand are known (cf. DE 198 04 184 A1 ).
a device of the type described above for the continuous treatment of a metal strip with a tempering device or with a ribbon float oven it may be, for. B. a annealing line or Kontiglühlinie act in which the metal strip from a heat treatment learn metallurgical reasons, z. B. to achieve certain strength and deformation properties.
the device may also be a strip coating line or a strip coating line in which the heat treatment of the metal strip does not take place in the sense of annealing, but for drying a coating of a strip, so that the oven is then designed as a continuous dryer.
the metal strip is preferably aluminum or non-ferrous metal strip in a thickness range of 0.1 mm to 6 mm.
the metal strip z. B. is heated in annealing lines to temperatures near the melting point, it is usually necessary to adjust within the tempering a relatively low band tension to avoid a band break.
the strip tension z. B. degraded on the inlet side in a clamping roller set and the outlet side after cooling again built in a further set of clamping rollers.
the specific strip tension is z. B. 0.5 to 1 MPa. Since the tape can "run" in particular with low tape tension in the oven, z. B. due to eventual bandsaw, it is necessary to position the band by means of a belt position control device in a suitable manner, preferably to bring the center of the tape.
Such a strip-guiding device generally has at least one control roller and suitable position-measuring devices, for. B. band edge detections on.
the strip running control device behind the tempering that is arranged after the cooling section.
the control role is usually carried out in practice as so-called PI band center control, ie with a proportional P and an integral I component.
the I component acts in the furnace section back and prevents too much bleeding of the tape in the oven.
the control roller sits on a movable base frame.
a plant of the type described above is z. B. from the DE 103 37 502 B4 known.
An oven with heating zones and cooling zones is adjoined by a deflection pulley serving as the center of the belt.
the invention has for its object to provide a device for the continuous treatment of a metal strip of the type described above, which is characterized by an improved band position control and guarantees a perfect tape especially in long kiln lines.
the invention teaches in a generic device for the continuous treatment of a metal strip, that the band position control device is disposed within the cooling section.
the cooling section is preferably divided into at least one first cooling section section and a subsequent spaced second cooling section section, wherein the band position control device is arranged between the first cooling section section and the second cooling section section.
the band position control device is consequently no longer arranged on the output side behind the temperature control device and consequently no longer after the last cooling zone, but rather it is integrated into the cooling path, as it is preferably divided into two cooling path sections.
the belt In a first section, the belt is cooled down so far that it can easily pass through the belt control device. Following the first cooling section, therefore, the band position control device is located.
the belt passes through the second cooling section and consequently the second part of the cooling zones, so that the belt is then cooled down to the desired final temperature.
a total of a long kiln line and consequently with long heating sections and cooling sections can be used, so that the production capacity is increased, without the free band length must be increased significantly in the range of low strip tension. In this way, an impermissible belt run in the oven is reliably avoided.
the tape position control device itself can be designed in a conventional manner, it can therefore be resorted to conventional solutions. According to the invention, it depends on the particular positioning of the strip running control device within the furnace section or within the cooling section.
the band position control device for the band position control z As a conventional, adjustable pulley, z. B. have a 90 ° -Umlenkrolle or be designed as such. However, it is advisable to provide the deflection roller with a suitable (high) temperature-resistant coating, since the belt temperature between the first cooling section and the second cooling section is preferably 100 ° C to 200 ° C, particularly preferably 120 ° C to 150 ° C. As an alternative to a 90 ° control roller can also be on another known type of band center control, z. B. using a multi-role control device, for. B. a three-roller control device or a control driver (eg., As a pair of rollers) are worked.
the band position control or band center control is performed in a basically known manner as a PI control.
the control roller or the multi-roller assembly thus sits in a basically known manner on a movable base frame. This twists the roll or rollers around an imaginary pivot point, which in turn lies in the furnace section.
the degree of displacement of the roller from the center axis of the furnace section is the proportional component, the extent of the misalignment of the roller the integral component of the belt center control.
the band position control device can be designed as a non-contact band position control device.
the band center control z. B. done contactlessly via linear motors.
known arrangements for influencing the metal strip using Linear motors are used, for example, in the DE 197 19 994 A1 to be discribed.
the belt treatment plant on the inlet side on a first set of tension rollers, which is arranged in front of the temperature control to reduce the strip tension. Furthermore, it is expedient to provide on the output side and thus behind the tempering a further set of tension rollers, with which the strip tension is increased again, so that can join further process steps, such as. B. straightening, cleaning or edge trimming.
a (further) tensioning roller set is arranged between the first cooling section section and the second cooling section section behind the belt position control device in order to increase the belt tension already at this point.
This has the advantage that the band can pass through the second part of the cooling zones with a slightly increased strip tension.
the division of the cooling section into two cooling sections has the consequence that the two cooling sections are (significantly) shorter than a corresponding uniform cooling section. Compared to conventional systems can be extended in this way, the entire tempering, d. H. Both the heating section can be extended and the entire cooling section.
the invention also provides a process for the continuous treatment of a metal strip with a device of the type described, wherein the metal strip for thermal treatment is guided floating through the heating section and the cooling section.
This method is characterized in that the position of the metal strip (within the strip running plane and transversely to the strip running direction) is controlled or regulated by means of a strip position control device arranged inside the cooling section.
such a band position control device is preferably equipped with suitable measuring devices and a feedback, so that a real regulation of the band position takes place.
the invention also encompasses embodiments in which work is carried out without measurement and / or without feedback, so that no control of the band position, but only control takes place.
the length of the first cooling section is dimensioned such that the metal strip between the first cooling section and the second cooling section and thus in the region of the band position control device a temperature of up to 200 ° C, z. B. 100 ° C to 200 ° C. More preferably, the temperature is up to 150 ° C, z. B. 120 ° C to 150 ° C.
the length of the second cooling section can then z. B. be sized so that the tape with a temperature of up to 70 °, preferably up to 60 ° C z. B. 40 ° C to 60 ° C, so that easily further process steps, such. B. straightening, cleaning or edge trimming can follow.
the inventive system can, for. B. be designed as annealing line or be part of an annealing line.
the tempering device is then designed as an annealing furnace.
the system can be designed as a coil coating system or be part of a coil coating plant.
the tempering device is then designed as a dryer or dryer oven. In both cases, the ovens / dryers are preferably designed as a ribbon float oven.
Fig. 1 shows a known belt treatment apparatus for the continuous treatment of a metal strip, namely a thermal treatment.
This device has a tempering device 2, which is designed as a ribbon float furnace.
the metal strip 1 passes through this strip float furnace 2 without contact by the strip between the upper nozzles and lower nozzles, which are acted upon by corresponding air pressure, is moved without contact. Details are not shown.
the strip float furnace 2 has a heating section 3 on the inlet side and a cooling section 4 on the outlet side.
the heating section is generally composed of a plurality of heating zones 3 ', while the cooling section is generally composed of a plurality of cooling zones 4', wherein the individual zones are individually or separately controllable.
the heating of the metal strip is usually done by means of the air, so that the nozzles, z. B. the lower nozzles in addition to the support function can also take the temperature.
the cooling zones the cooling is usually also done by air or by a combination of air and water.
the target temperature in the heating zone is z. B. about 550 ° C to 570 ° C.
the heating zones thus form heating and holding zones.
the system on the inlet side has a tensioning roller set 5, with which the strip tension is reduced, for. B. on a specific strip tension of z. B. 0.5 to 1 MPa.
the metal strip 1 is center-controlled by means of a belt position control device 7, ie the position of the metal strip is regulated in the strip running plane and transversely to the strip running direction.
the tape tension with an outlet side pulley set 6 back to the usual line level of z. B. specifically increased 10 to 20 MPa. Because of the low specific strip tension within the strip float furnace, it is necessary to bring the metal strip 1 to the center of the strip by means of the strip position control device 7.
the band position control device 7 is no longer located behind the temperature control 2 and therefore no longer behind the cooling section 4, but within the cooling section 4 itself.
the Fig. 2 and 3 again show a strip processing apparatus with a temperature control device 2, which has an inlet-side heating section 3 and a downstream cooling section 4.
a tensioning roller set 5 is provided and on the outlet side, in turn, a further tensioning roller set 6 can be provided, which is only in Fig. 3 but not in Fig. 2 is shown.
the heating section 3 is in turn composed of several heating zones 3 ', while the cooling section 4 is composed of a plurality of cooling zones 4'.
the cooling section 4 is divided into two cooling section sections, namely a first cooling section 4a and a subsequent second cooling section 4b.
the band position control device 7 is now arranged according to the invention between the first cooling section 4a and the second cooling section 4b.
the metal strip is heated in the heating section 3 with the heating and holding zones 3 'in a basically known manner to the desired temperature and the temperature can be maintained for a desired time. Consequently, apart from an extension, the heating section 3 does not have to be modified compared with the prior art.
To the heating section 3 then joins the first cooling section 3a, with which the metal strip is cooled down in a first stage, preferably to a temperature of 100 ° C to 200 ° C, z. B 120 ° C to 150 ° C.
the strip center is controlled by means of the strip center control device 7.
this has a 90 ° control roller 8.
this is followed in the exemplary embodiment Fig. 2 another tension roller set 9 to increase the tape tension.
the band passes through the second cooling section 4b, so that it reaches the desired final temperature of z. B. 40 ° C to 60 ° C is cooled down. In this way, it is possible to increase the production capacity without appreciably prolonging the free tape length, so that an impermissible belt run in the furnace is avoided.
the second cooling section 4b may be followed by another band position control device and / or another set of tensioning rollers. This is in Fig. 2 not shown.
Fig. 3 shows a modified embodiment of the invention, in which the strip center control device 7 is designed as a three-roller belt center control with three rollers 10. Furthermore, in Fig. 3 indicated that behind the second cooling section 4b, a further strip center control device 11 and a further set of tension rollers 6 may be arranged.
the additional midband control 11 behind the second cooling section 4b is useful because in this embodiment between the cooling sections 4a, 4b no tensioning roller set is arranged and therefore is also working in the second section 4b with a lower strip tension.
the furnace zones 3 ', 4' in the embodiment according to the invention overall have a length which is greater than the length in the known embodiment according to Fig. 1 , Nevertheless, the free tape length is not greater, since the mid-band control 7 itself already connected to the first cooling section 4a. This allows both the heating section 3 and the cooling section 4 over the prior art significantly extend. However, due to the division of the cooling section 4, cooling section sections 4a, 4b are formed which are each (significantly) shorter than the heating section 3.

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Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Heat Treatment Of Strip Materials And Filament Materials (AREA)
Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Tunnel Furnaces (AREA)

EP13183368.3A 2012-10-19 2013-09-06 Dispositif et procédé destinés au traitement continu d'une bande métallique Active EP2722112B2 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL13183368T PL2722112T3 (pl)	2012-10-19	2013-09-06	Urządzenie i sposób do ciągłej obróbki taśmy metalowej

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102012110010.1A DE102012110010B4 (de)	2012-10-19	2012-10-19	Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes

Publications (3)

Publication Number	Publication Date
EP2722112A1 true EP2722112A1 (fr)	2014-04-23
EP2722112B1 EP2722112B1 (fr)	2015-06-24
EP2722112B2 EP2722112B2 (fr)	2025-03-26

Family

ID=49170558

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP13183368.3A Active EP2722112B2 (fr)	2012-10-19	2013-09-06	Dispositif et procédé destinés au traitement continu d'une bande métallique

Country Status (10)

Country	Link
US (1)	US10415113B2 (fr)
EP (1)	EP2722112B2 (fr)
KR (1)	KR102162942B1 (fr)
CN (1)	CN103773943B (fr)
CA (1)	CA2829532C (fr)
DE (1)	DE102012110010B4 (fr)
ES (1)	ES2543328T3 (fr)
HU (1)	HUE025366T2 (fr)
PL (1)	PL2722112T3 (fr)
RU (1)	RU2623520C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2016096173A1 (fr) *	2014-12-18	2016-06-23	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Dispositif et procédé de traitement en continu d'une bande métallique
WO2017133867A1 (fr) *	2016-02-05	2017-08-10	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Dispositif de refroidissement en continu et procédé de refroidissement d'une bande métallique

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DE102012110010B4 (de) *	2012-10-19	2016-09-01	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes
FR3027920B1 (fr) *	2014-10-29	2019-03-29	Fives Stein	Procede d'orientation de grains de tole d'acier, dispositif s'y rapportant, et installation mettant en oeuvre ce procede ou ce dispositif
CN104831053B (zh) *	2015-05-25	2017-08-22	马钢(集团)控股有限公司	一种电工钢退火加热支撑方法
KR102094940B1 (ko)	2015-06-09	2020-03-30	노벨리스 인크.	비-접촉 자기 조종
CN108603241A (zh) *	2016-01-29	2018-09-28	康宁股份有限公司	热处理金属材料及相关方法
DE102018100842B3 (de)	2018-01-16	2019-05-09	Ebner Industrieofenbau Gmbh	Durchlaufofen für Aluminiumbänder

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2012
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2013
- 2013-09-06 EP EP13183368.3A patent/EP2722112B2/fr active Active
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- 2013-09-06 ES ES13183368.3T patent/ES2543328T3/es active Active
- 2013-10-08 CA CA2829532A patent/CA2829532C/fr active Active
- 2013-10-16 KR KR1020130123296A patent/KR102162942B1/ko active Active
- 2013-10-17 US US14/056,372 patent/US10415113B2/en active Active
- 2013-10-18 RU RU2013146678A patent/RU2623520C2/ru active
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Also Published As

Publication number	Publication date
KR102162942B1 (ko)	2020-10-07
CN103773943B (zh)	2018-02-06
PL2722112T3 (pl)	2015-11-30
DE102012110010A1 (de)	2014-04-24
DE102012110010B4 (de)	2016-09-01
US10415113B2 (en)	2019-09-17
EP2722112B1 (fr)	2015-06-24
ES2543328T3 (es)	2015-08-18
CN103773943A (zh)	2014-05-07
US20140110890A1 (en)	2014-04-24
RU2013146678A (ru)	2015-04-27
HUE025366T2 (en)	2016-02-29
CA2829532C (fr)	2020-03-10
CA2829532A1 (fr)	2014-04-19
RU2623520C2 (ru)	2017-06-27
EP2722112B2 (fr)	2025-03-26
KR20140050552A (ko)	2014-04-29

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