CN1319679C - Equipment for conveying and cooling metal blank - Google Patents
Equipment for conveying and cooling metal blank Download PDFInfo
- Publication number
- CN1319679C CN1319679C CNB2004100012490A CN200410001249A CN1319679C CN 1319679 C CN1319679 C CN 1319679C CN B2004100012490 A CNB2004100012490 A CN B2004100012490A CN 200410001249 A CN200410001249 A CN 200410001249A CN 1319679 C CN1319679 C CN 1319679C
- Authority
- CN
- China
- Prior art keywords
- strand
- cooling chamber
- roller
- wall
- cooling
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
- B22D11/1246—Nozzles; Spray heads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
In a device for conveying and cooling metal strand comprising strand guiding rolls(12) supported to the inside of a roll stand(8) to which the metal strand is supported, a strand guide equipped with a cooling chamber(20) which is designed in such a way that the cooling chamber is opened toward the metal strand and sealed toward a supporting structure(24) of the roll stand, and into which coolant is flown through one or more of spray nozzles, and one or more groups of continuous strand guiding rolls(12) that are at least partially positioned inside the cooling chamber as a device for conveying and cooling the metal strand(6), preferably steel strand preferably inside the strand guide of a continuous casting facility, the device for conveying and cooling the metal strand is characterized in that one or more of the spray nozzles are positioned at the outer side of the cooling chamber, and passage openings(22) for the coolant allotted to the spray nozzles and discharged from the spray nozzles are arranged on the wall(21) of the cooling chamber.
Description
Technical field
The present invention relates to be used at strand guide, preferably transmit the also equipment of cool metal base, preferred steel billet in the strand guide at casting apparatus, this equipment has: a plurality of strand guiding rollers, and their support metal bases also are supported in the roller frame; Cooling chamber is designed to open wide to metal base and closes to the supporting construction of roller frame, and cooling agent is incorporated into wherein by at least one nozzle; At least one group of continuous strand guiding roller is positioned at cooling chamber inside at least in part.
Background technology
In casting apparatus, produce in the process of continuous casting of metals base, for thermometal base only partly solidified when leaving permanent mould, it is sufficiently cooled in must the strand guide below permanent mould, so that obtain completely crued metal base with optimum microstructure in the short as far as possible time.Especially for higher metal of the fusing point (relatively) of for example steel etc. and their alloy, a large amount of heat must be dispersed.The cast metal base is guided by the strand guiding roller that rotation is supported in the roller frame.Should remember simultaneously, because the thermal force on the strand guiding roller is to there being adverse effect in their service life, and the distortion of strand guide has adverse effect to the quality of cast metal base, so the photothermal load that the strand guiding roller of roller frame and supporting construction are born should be low as far as possible.
From US 3,946, can learn among 797A, RU 2 033 304 C1 and the DE-A 27 57 694, a cooling chamber is set in the strand guiding roller zone, and the form of cooling medium with spraying is incorporated in these cooling chambers by two flow nozzles.Basically equally distributed cooling medium radiates radiant energy by absorption from the cast metal base makes the even cooling of casting billet surface also make the roller cooling extraly.Therefore but this scheme has following shortcoming: the nozzle that is arranged on cooling chamber inside is exposed to and comes from photothermal high thermal force and come from the pollution of the scale that peels off from casting billet surface.This can cause nozzle to lose efficacy or influence their spray regime at least unfriendly, thereby causes the inhomogeneous cooling of strand owing to the variation of nozzle opening.
Summary of the invention
Therefore, the objective of the invention is to avoid the defective of the prior art of these descriptions, and propose a kind ofly to be used to transmit and the equipment of cool metal strand, in this device, in the very long working time, can guarantee cooling agent is incorporated near the metal strand hot surface the cooling chamber equably.The position that another object of the present invention is to be provided with nozzle is located at easily near so that safeguard and the position of assembling.
The realization of this purpose is by making at least one nozzle be positioned at cooling chamber outside, and the access portal that distribute to nozzle, is used for the cooling agent that sprays from nozzle is arranged on the wall of cooling chamber.
At least two strand guiding rollers that are arranged on thermometal strand one side along the strand direction of transfer continuously form one group of strand guiding roller, they are joined and are assigned with a common cooling chamber, this cooling chamber opens wide to the cooling casting billet surface, so that absorb the radiant heat that sends from casting billet surface.This cooling chamber comprises the space between at least two adjacent strand guiding rollers.Access portal in the cooling chamber wall is provided with by this way: guarantee to distribute the most equably in cooling chamber with the cooling agent that the form that the cooling agent of major part atomizing is sprayed is introduced, thereby guarantee that casting blank surface temperature reduces basically equably.
In this case, the cross section of the access portal in the cooling chamber wall and the spray regime of nozzle are complementary.For example, if nozzle is a fan nozzle, then access portal forms a slit, and its longitudinal length is by the opening angle and its distance decision from cooling chamber of nozzle.
For covering the supporting construction of roller frame, the wall of cooling chamber particularly rear wall is formed by plate, and these plates are fixed to and are in particular this order and are arranged on the supporting walls or support stick in the roller frame.This fixing can be by being threaded or preferably implementing by being welded on these supporting walls, and these weld seams are interrupted so that make it can overcome the expansion of plate.Also can be especially by be bent upwards at the edge or curl firm and hard existing.
According to the present invention, provide a kind of strand guide that is used for casting apparatus to transmit and cool off the equipment of steel billet, it has: strand guiding roller is used to support steel billet and is supported on the roller frame; Cooling chamber, be designed to open wide and seal to the supporting construction of roller frame to steel billet, cooling agent is incorporated in the cooling chamber by at least one nozzle, at least one group of continuous strand guiding roller is in the cooling chamber position at least in part, it is characterized in that, at least one nozzle is positioned at cooling chamber outside, and the access portal that distribute to nozzle, is used for the cooling agent that sprays from nozzle is arranged on the wall of cooling chamber.
A favourable enforcement according to the present invention program is: the roller frame that forms along a plurality of strand boot segments of the adjacent setting of strand guide, a plurality of strand boot segments comprise a plurality of strand guiding rollers, especially, these deflector rolls can be removed individually, and the wall of adjacent segment cooling chamber links together by the bridge element.This can form continuous seal cooling chamber basically.Preferably, the strand boot segment is assigned cooling chamber, therefore changes each section easily, and each section surrounds cooling chamber.Perhaps, a section also can be distributed a plurality of cooling chambers.The elastic bridge element is set between the cooling chamber of adjacent segment to make and seamlessly to set up the cooling condition that can set along whole strand guide.This bridge element can be formed by elasticity or the movable member of machinery.
For guarantee cooling chamber equally the narrow side structure of strand guide close, the frame structure of strand boot segment in the wall of cooling chamber ends at, and the cooling chamber wall that is used for laterally limiting cooling chamber is fastened to other boundary wall that is used for laterally delimiting purpose with the distolateral wall with a certain distance from the support lateral surfaces of the strand guiding roller distolateral, that particularly contact with the thermometal strand of strand guiding roller.This outer bearing that can guarantee particularly to be provided with the strand guiding roller of a plurality of bracing or strutting arrangements is positioned at the cooling chamber outside in the temperature protection space.
In the situation of casting apparatus, vertical and crooked casting device, from permanent mould, appear in one's mind in the zone of back strand guide at strand, the roller frame comprises a plurality of strand boot segments that are provided with relative to each other in the strand both sides along strand guide, these strand boot segments comprise a plurality of strand guiding rollers, in the situation of bending apparatus, be often referred to outer curve section and inner curve section.Be the section that makes that the cooling chamber device is arranged across this segmentation, connect the wall elements of the cooling chamber of section relatively with the bridge element.These bridge elements can be formed by elasticity or the movable member of machinery, thereby form continuous seal cooling chamber basically.
Being tightly connected between the adjacent segment also can be formed by the bridge element, these bridge elements comprise a plurality of members, wherein one group of member is fastened on the cooling chamber of a section, and another group member is fastened on the cooling chamber of adjacent segment the only overlapped or mutual support of adjacent members.
Generally speaking, the bridge element can be realized the close encapsulation of thermometal strand along strand guide by the connection between the single cooling chamber.
Strand guiding roller can be designed to pure backing roll and not adopt drive unit, perhaps is provided with rotating driving device, so that as supporting and transfer roller.
In the strand bootup process, after in the transmission region of runout table, following permanent mould closely or in its end, or in the process of the runout table that is mainly level, one or more pairs of casting blank deformation rollers can be set be supported in the distortion saddle during beginning.These casting blank deformation rollers make the metal strand still carry out the deformation process (soft compression) or the operation of rolling for liquid or the completely crued zone of strand at core.Have strand guiding roller and casting blank deformation roller that favourable configuration according to the continuous casting installation for casting of cooling chamber of the present invention is that in strand guide the order with needs is provided with, wherein at least one group of strand guiding roller and/or casting blank deformation roller are positioned at cooling chamber at least in part.
Therefore, in application region of the present invention, strand guide outlet side of permanent mould from continuous casting installation for casting extends through and arrives its output area, at least the control cooling of the metal strand that supports for the strand guiding roller considered, comprise any rolling saddle in the horizontal output zone that is arranged on continuous casting installation for casting, so that directly use the metal strand, this metal strand preferably is divided into the strand section.
Description of drawings
By below with reference to the description of accompanying drawing to non-limiting example embodiment of the present invention, can be well understood to other characteristics of the present invention and advantage, wherein:
Fig. 1 illustrates the longitudinal section that has the casting apparatus of strand guide according to of the present invention with the form of profile diagram,
Fig. 2 illustrates the strand leader that has according to cooling chamber of the present invention in the longitudinal section of inner curve,
Fig. 3 is illustrated in the injection plane of nozzle, according to the cross section of cooling chamber of the present invention,
Fig. 4 illustrates according to another embodiment of the present invention, in the injection plane of nozzle, according to the cross section of cooling chamber of the present invention.
The specific embodiment
Fig. 1 illustrates the longitudinal section of traditional casting apparatus with the form of profile diagram, and this equipment is used for the band steel that can curl continuous flow procedure production, cools off strand in this process in strand guide.Along the mobile direction of material, casting apparatus 1 comprises: tundish 2, liquid steel 3 casting nozzle 4 by submergence from tundish 2 flow in the continuous casting permanent mould 5 of cooling, thereby liquid steel solidifies formation here has liquid core metal strand 6, and leaves permanent mould 5 with the cross section corresponding to permanent mould outlet cross section.Strand guide 7 subsequently transmit and further in the process of cool metal strand with its support.Metal strand 6 is transformed into substantially horizontal position from vertical basically position on roller frame 8, its central roll frame 8 extends in the both sides of cast metal base width sidewall, carry out the further processing of any required character then, for example in single line or multi-thread milling train 9, its thickness is reduced, be cooled to the temperature and of curling at cooling section 10 then at curling platform 11 coilings.The stove device that is used for metal tape is heat-treated also can form one with this device.
Strand guide 7 comprises a plurality of single members, thereby these members can change and make casting blank deformation to form the metal tape that can curl separately.Strand guide 7 mainly comprises a plurality of strand guiding rollers 12, the form that their carry cast metal base 6 or are designed to move thereon, and forming roller frame 8 also is metal strand 6 predetermined transfer paths in this way.Driven strand guiding roller 13 is specifically designed to and is passing guiding and support strand on the path of this device, and the active strand guiding roller 14 other transfer rates that also have transmitting function and control the metal strand.In addition, casting blank deformation roller 15 forms as one with strand guide, these casting blank deformation rollers 15 influence the direction of transfer of metal strand in for example casting blank bending saddle or strand alignment saddle 16, and be used to casting blank deformation saddle 17 reducing the thickness of liquid core metal strand, or be used in the milling train 9 so that reduce the thickness of completely crued metal strand.Many strand guiding roller 12 is combined that is provided with continuously along the strand direction of transfer forms strand boot segment 18.According to the layout of this segmentation, each outer curve section 18a and each inner curve section 18b are assigned a cooling chamber 20, and each in them all totally comprises along a plurality of strand guiding rollers 12 of the adjacent setting of strand direction of transfer and/or casting blank deformation roller 15.Each cooling chamber 20 all opens wide and separates by the supporting construction of wall 21 with roller frame (not shown) and roller frame towards casting billet surface.Have coolant channel opening 22 in the wall 21, cooling agent sprays from the nozzle 23 that is arranged on this a distance, access portal back.Cooling agent is incorporated in the cooling chamber 20 with trickle atomised form, mainly absorbs and disperse the radiant heat that gives out from casting billet surface.Cooling chamber has the flow export (not shown), is used for collecting the particularly cooling water of outer curve section.
Fig. 2 illustrates the inner curve section 18b with seven strand guiding rollers 12, and strand guiding roller 12 support metal strands 6 also are rotatably installed on the supporting construction 24 of roller frame 8.Supporting construction 24 comprises supporting walls 25, and supporting walls 25 is relative with strand guiding roller 12, and strand guiding roller supports (Fig. 3) thereon, and the wall 21 of cooling chamber 20 preferably is connected thereon with solder joints 26 by being threaded.Wall 21 is formed by plate 27, and these plates are bent upwards at their edge 28 or curl so that absorb thermal stress.
Designs of nozzles shown in Fig. 2 is two stream axle nozzles 32, and these nozzles are connected to the parallel supply line 34,35 of cooling agent (being mainly water) and atomizing medium (being mainly air) by connector 33.This two stream axle nozzles are described in detail in disclosed specification DE 102 00 662 A1 of Germany.
Can the mode with sealing interconnect by inserting elastic bridge element 36 along the interconnective cooling chamber 20 of strand direction of transfer, be the sealing (Fig. 2) continuously of portions ground so that make the metal casting billet surface at least.Bridge element 36 can be directly connected on the plate 27 of cooling chamber 20, perhaps is fixed on the adjacent supporting walls 25 as plate itself.
Equally, the narrow sidewall of metal strand is assigned the elastic bridge element 37 or the baffle plate (Fig. 3) of horizontal restriction cooling chamber 20 in the distolateral a distance from strand guiding roller 12.These bridge elements 37 begin mutually towards also superposeing mutually from inner curve section 18b and from relative outer curve section 18a.In this case, the outer bearing 38 of strand guiding roller 12 is positioned at cooling chamber 20 outsides.
According to the variant of a design shown in Figure 4, the wall 21 of cooling chamber 20 ends at the frame structure of inner curve section 18b.Wall 40 produces one and seals basically continuously, basically or flexible connection between inner curve section 18b and boundary wall 41, shell (it is arranged essentially parallel to crooked strand guide) for example is installed.Similarly connecting (although not shown) is present between the frame structure of boundary wall and outer curve section.
In the context of key diagram 1, cooling chamber 20 according to the present invention also can be used for forming the casting blank deformation roller 15 of distortion saddle 16,17 or milling train 9 or an independent roll stand part.The strand guiding roller 12 in the cooling chamber 20 and the combination of casting blank deformation roller 15 are included within protection scope of the present invention equally fully.
The invention is not restricted to present embodiment.On the contrary, the very possible setting like this of wall with cooling chamber of access portal: make strand guiding roller not exclusively be positioned at cooling chamber, therefore on the contrary, wall ends at from strand guiding roller a distance, between the transverse side of adjacent strand guiding roller in the zone of close clearance.
And; cooling chamber with following structure still drops within protection scope of the present invention: they interconnect along the strand direction of transfer; but not to interconnect by the bridge element; and be baffle plate with these bridge element design; these baffle plates, and just stop before casting billet surface towards casting billet surface in the end of each cooling chamber.
Cooling chamber comprises at least two adjacent strand guiding rollers, and under the situation of minimum, cooling chamber may be made up of with the cooling chamber wall and the side cover (if suitable) of the required access portal with cooling agent spraying strand guiding roller lateral surfaces part relative to each other.In the context of the present invention, the sealing fully with two adjacent strand guiding rollers of corresponding bridge element or baffle plate also forms cooling chamber.
Claims (8)
1. the strand guide that is used for casting apparatus transmits and cools off the equipment of steel billet, and it has: strand guiding roller (12) is used to support steel billet and is supported on roller frame (8); Cooling chamber (20), be designed to open wide and seal to the supporting construction (24) of roller frame to steel billet, cooling agent is incorporated in the cooling chamber by at least one nozzle (23), at least one group of continuous strand guiding roller (12) position at least in part is in the cooling chamber (20), it is characterized in that, at least one nozzle (23) is positioned at cooling chamber (20) outside, and the access portal (22) that distribute to nozzle, is used for the cooling agent that sprays from nozzle is arranged on the wall (21) of cooling chamber.
2. equipment according to claim 1 is characterized in that, the spray regime of the cross section of access portal (22) and nozzle (23) is complementary.
3. equipment according to claim 1 and 2 is characterized in that, is the supporting construction (24) of covering roller frame (8), and the wall (21) of cooling chamber (20) is formed by plate (27), and it is fixed on the supporting walls (25) of roller frame.
4. equipment according to claim 3 is characterized in that, plate (27) is bent upwards or curls in its edge (28).
5. equipment according to claim 1, it is characterized in that, roller frame (8) is formed by a plurality of strand boot segments (18) along the adjacent setting of strand guide (7), and comprises a plurality of strand guiding rollers (12), and the wall (21) of adjacent segment cooling chamber (20) interconnects by bridge element (36).
6. equipment according to claim 1, it is characterized in that, roller frame (8) is by a plurality of outer interior strand boot segment (18a, 18b) form, the frame structure of strand boot segment (18b) in the wall (21) of cooling chamber (20) ends at, and cooling chamber (20) wall (40) that is used for laterally limiting cooling chamber is fastened to distolateral other boundary wall (41) with a certain distance from strand guiding roller (12).
7. equipment according to claim 1, it is characterized in that, roller frame (8) is by a plurality of strand boot segment (18a, 18b) form, they are oppositely arranged mutually along strand guide (7), and comprising a plurality of strand guiding rollers (12), the wall (21) of the cooling chamber (20) of section (18) connects by the mode of bridge element (37) with sealing relatively.
8. equipment according to claim 1, it is characterized in that, with the desired sequence setting, at least one group of strand guiding roller (12) and/or casting blank deformation roller (15) are positioned in the cooling chamber (20) at least in part in strand guide (7) for strand guiding roller (12) and casting blank deformation roller (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0000703A AT412073B (en) | 2003-01-03 | 2003-01-03 | DEVICE FOR TRANSPORTING AND COOLING A METAL STRAND |
| ATA7/2003 | 2003-01-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1517164A CN1517164A (en) | 2004-08-04 |
| CN1319679C true CN1319679C (en) | 2007-06-06 |
Family
ID=31192740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100012490A Expired - Fee Related CN1319679C (en) | 2003-01-03 | 2004-01-05 | Equipment for conveying and cooling metal blank |
Country Status (6)
| Country | Link |
|---|---|
| KR (1) | KR101062529B1 (en) |
| CN (1) | CN1319679C (en) |
| AT (1) | AT412073B (en) |
| DE (1) | DE10357435B4 (en) |
| IT (1) | ITMI20032568A1 (en) |
| RU (1) | RU2324570C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011003194A1 (en) * | 2010-05-19 | 2011-11-24 | Sms Siemag Ag | roller device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108682A (en) * | 1984-11-29 | 1986-05-10 | 沃斯特—阿尔派因股份公司 | A kind of strand guide that is used for continuous casting equipment |
| CN1045719A (en) * | 1990-04-26 | 1990-10-03 | 营口市连铸机械配件厂 | A kind of break-out detection in continuous casting |
| DE20010065U1 (en) * | 2000-06-05 | 2000-09-21 | Lechler Gmbh & Co Kg | Surface cooling device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1758711B2 (en) * | 1968-07-26 | 1973-05-24 | Demag Ag, 4100 Duisburg | DEVICE FOR COOLING A CAST METAL ROD, ESPECIALLY MADE OF STEEL |
| CH550037A (en) * | 1972-12-05 | 1974-06-14 | Concast Ag | PROCESS FOR CONTINUOUS STEEL CASTING AND CONTINUOUS STEEL CASTING PLANT. |
| DE2757694A1 (en) | 1977-12-21 | 1979-06-28 | Mannesmann Ag | PROCESS AND DEVICE FOR COOLING THE STRAND DURING CONTINUOUS CASTING OF METALS |
| RU2033304C1 (en) * | 1992-11-19 | 1995-04-20 | Производственное объединение "Южуралмаш" | Metal continuous casting plant |
-
2003
- 2003-01-03 AT AT0000703A patent/AT412073B/en not_active IP Right Cessation
- 2003-12-04 DE DE10357435A patent/DE10357435B4/en not_active Expired - Lifetime
- 2003-12-23 IT IT002568A patent/ITMI20032568A1/en unknown
- 2003-12-30 RU RU2003138082/02A patent/RU2324570C2/en not_active IP Right Cessation
- 2003-12-31 KR KR1020030101785A patent/KR101062529B1/en active IP Right Grant
-
2004
- 2004-01-05 CN CNB2004100012490A patent/CN1319679C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108682A (en) * | 1984-11-29 | 1986-05-10 | 沃斯特—阿尔派因股份公司 | A kind of strand guide that is used for continuous casting equipment |
| CN1045719A (en) * | 1990-04-26 | 1990-10-03 | 营口市连铸机械配件厂 | A kind of break-out detection in continuous casting |
| DE20010065U1 (en) * | 2000-06-05 | 2000-09-21 | Lechler Gmbh & Co Kg | Surface cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2003138082A (en) | 2005-06-10 |
| AT412073B (en) | 2004-09-27 |
| DE10357435A1 (en) | 2004-07-15 |
| KR20040062867A (en) | 2004-07-09 |
| ATA72003A (en) | 2004-02-15 |
| CN1517164A (en) | 2004-08-04 |
| DE10357435B4 (en) | 2008-09-04 |
| ITMI20032568A1 (en) | 2004-07-04 |
| RU2324570C2 (en) | 2008-05-20 |
| KR101062529B1 (en) | 2011-09-06 |
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Address after: Linz, Austria Patentee after: SIEMENS VAI METALS TECHNOLOGIES GmbH & Co. Address before: Linz, Austria Patentee before: VOEST-ALPINE INDUSTRIEANLAGENBAU GmbH & Co. |
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Effective date of registration: 20161202 Address after: Linz, Austria Patentee after: PRIMETALS TECHNOLOGIES AUSTRIA GmbH Address before: Linz, Austria Patentee before: SIEMENS VAI METALS TECHNOLOGIES GmbH Effective date of registration: 20161202 Address after: Linz, Austria Patentee after: SIEMENS VAI METALS TECHNOLOGIES GmbH Address before: Linz, Austria Patentee before: SIEMENS VAI METALS TECHNOLOGIES GmbH & Co. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 Termination date: 20200105 |