EP2315859A1 - Seal plug for a tiltable converter - Google Patents
Seal plug for a tiltable converterInfo
- Publication number
- EP2315859A1 EP2315859A1 EP09776099A EP09776099A EP2315859A1 EP 2315859 A1 EP2315859 A1 EP 2315859A1 EP 09776099 A EP09776099 A EP 09776099A EP 09776099 A EP09776099 A EP 09776099A EP 2315859 A1 EP2315859 A1 EP 2315859A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- glass
- mineral
- stopper according
- plug
- 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
- 239000011521 glass Substances 0.000 claims abstract description 44
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 24
- 239000011707 mineral Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 claims abstract description 10
- 239000004927 clay Substances 0.000 claims abstract description 10
- 239000000470 constituent Substances 0.000 claims abstract description 3
- 239000002699 waste material Substances 0.000 claims abstract 2
- 239000011819 refractory material Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000011230 binding agent Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 7
- 239000000306 component Substances 0.000 claims description 7
- 239000002480 mineral oil Substances 0.000 claims description 7
- 235000010446 mineral oil Nutrition 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000004014 plasticizer Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 5
- 239000013585 weight reducing agent Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 26
- 239000002893 slag Substances 0.000 description 6
- 229920006328 Styrofoam Polymers 0.000 description 5
- 239000008261 styrofoam Substances 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000368 destabilizing effect Effects 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/12—Opening or sealing the tap holes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/12—Opening or sealing the tap holes
- C21B7/125—Refractory plugging mass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4653—Tapholes; Opening or plugging thereof
-
- 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
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
-
- 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
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1509—Tapping equipment
- F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
Definitions
- the invention relates to a sealing plug for the tapping hole of a tiltable converter, from outside the converter to the
- Converter inside inserted into the tap hole and can be fixed there, then to be flushed over the liquid steel with this together again from the tap hole, and consists of refractory material with clay components, binders, water and mineral oil.
- the invention relates to a method for producing a closure plug to be used for the temporary closing of the tapping hole of a tiltable converter consisting of a clay constituent, binder, water and mineral oil and additives refractory material.
- Outlet opening or a taphole equipped to transfer the liquid steel in the tapping pan or the transport vessel when tilting the converter. To empty the converter is tilted so that the steel can flow through the tap hole. Since on the liquid steel always specifically lighter slag of different viscosity floats, this forcibly passes during tilting first in the tap hole and thus in more or less large amount in the tapping pan and the transport container. For many subsequent metallurgical processes, the presence of oxygen rich and often phosphorus or sulfur enriched slag is of considerable disadvantage. Therefore, it has been successfully developed a sealing plug (EP 0 635 071), which consists of a plastic material, introduced into the tap hole and then can be deformed between two Verformplatten so that it automatically remains within the tap hole.
- a sealing plug EP 0 635 071
- the upper Verformplatte is funnel-shaped and merges into a piece of pipe that extends to serving as an abutment for a deforming lower Verformplatte.
- the deforming device has a pulling claw, which is passed through the pipe section and then with appropriate force can be pulled back toward lower Verformplatte so as to deform the plastic region of the sealing plug between the two Verformplatten accordingly.
- the plastically formed refractory material essentially comprises binding clay, alumina silicates, water, plasticizers, binders and additives.
- the invention is therefore based on the object to provide a lightweight sealing plug with high storage stability.
- the object is achieved in that the refractory material is mixed with mineral glass bubbles, which are designed to absorb limited water.
- the mineral glass hollow spheres have a diameter of 0.2 to 5 mm, preferably 0.5 to 1 mm.
- Such glass hollow spheres are advantageously stable, can be mixed in well and work well with the clay components that supply them specifically during storage with water, so that the clay components retain their flexibility.
- the mineral glass bubbles lead, as required by the task, to a significant reduction in weight and indeed in the required relatively small diameters. If the proportion of styrofoam balls is replaced by glass hollow spheres, the total weight of the sealing plug drops by far more than 20%.
- the volume fraction of mineral glass bubbles is 5 to 40%, preferably 10 to 30%, of the total refractory material.
- the stopper has the necessary stability and just the longer storage possibility, so that he is overall much better to handle and store with its reduced weight and also to use.
- the hollow glass spheres receiving a limited amount of water have a special outer surface, this being the case in particular when the mineral glass hollow spheres are expanded glass spheres.
- This expanded glass does not receive a smooth surface during manufacture, but rather the desired rough surface into which water particles can advantageously be stored.
- the tapping hole receives not least by the flow of liquid and thus hot steel a different shape. It has proved to be particularly useful to form the existing of the refractory material with the mineral glass bubbles hollow plug to a cylinder, which can then be pressed after insertion into the tap hole against the walls of this tap hole.
- the cylindrical shape actually adapts optimally to any shape of the tap hole, even if this changes the overall shape over the course of its useful life.
- the plug has the shape of a truncated cone. He can then be inserted in the appropriate direction in the funnel-shaped tap hole and then fixed there by pressing.
- the upper deforming plate has a funnel-shaped design from the outset, that is to say it goes over into the pipe section accordingly.
- the stopper has an inner bore and an upper and lower Verformplatte, wherein the thickness of the upper Verformplatte, which is formed in the inner bore transient, is increasingly carried out to the inner bore.
- the plug itself is pressurized only with the movement of the upper Verformplatte and not already when placing a correspondingly self-shaped Verformplatte.
- the upper deformation plate is composed of a plurality of metal rings of different flexibility or stability, wherein the flexibility of the metal rings is selected to decrease the outer ring.
- the flexibility of the metal rings is selected to decrease the outer ring.
- Training is the ability to pull virtually on the pipe section so as to move the upper Verformplatte towards lower Verformplatte while deforming the intermediate refractory material body. Whether this is more expedient or to work as before with a push-pull claw pushed through the pipe section, can be left undecided, in any case, so is the desired setting of the plug in the taphole to achieve.
- the refractory material to be disposed between the upper and lower deforming plates is made 10 to 30% by weight of mineral glass glass balls consisting of expanded glass, 20 to 40% by weight of selected high quality cetane, 20 to 40% by weight of alumina silicate, 1 to 20% by weight of water
- the mineral glass glass balls which are made of expanded glass can use a large amount of moisture, ie. H. Include water, but possibly also other liquids to provide in this way over long periods of time within the refractory material or the plug made therefrom for the necessary flexibility.
- the described mixture can be varied within the limits mentioned, depending on which of the target directions is the more important.
- the individual components ie the clay components, binder, water and mineral oil and the various additives must be mixed together to form a refractory material.
- the invention provides that are used as additives mineral glass bubbles, which are watered before mixing with the other mixture components and thereby bind up to 100% of its own weight of water itself.
- these hollow glass spheres are around is a special type of glass bubbles, namely those mineral with a special surface, which are suitable to bind water itself or other liquids. It has proved to be particularly useful that produced as mineral hollow spheres made of glass blown glass balls.
- These expandable glass spheres have a rough surface which is suitable to bind appropriate amounts of moisture, ie in particular water, and to retain this even after mixing in the other ingredients until these other ingredients require moisture and then from the Can absorb Blähglaskugeln.
- the binding clay and the toner silicates remain so elastic or yielding that they can still be processed properly even after prolonged periods of storage or storage.
- a closure plug which can be stored particularly well can be achieved by shaping the mixture after the mixing process, while or afterwards providing it with the forming plates and tube piece, and then packing it all around tightly in foil.
- a sealing stopper manufactured in this way is ready for dispatch and can be safely stored by the manufacturer or by the user for longer periods of time, ie for at least half a year, in order to then be used in the converter.
- the invention is characterized in particular by the fact that a closure plug and a method for producing this plug is provided, which provide a closure plug for use in tiltable converters, which can therefore be optimally processed because it has the necessary plastiability over long periods of time , Retains the necessary moisture and thus deformability in its entire dimension and is much better to handle due to its lower weight than the styrofoam-enriched sealing plug of the prior art.
- These special features and properties of the sealing plug according to the invention prove to be particularly advantageous because they give the opportunity to send these plugs over long distances and thus corresponding periods around the world. They are not only due to their stable property during transport to keep in optimal shape, but also in your storage at the user. They are then available to the user exactly in the given form during use and then still have the necessary deformability, so that they can always be positioned safely and evenly in the respective tap hole.
- FIG. 1 shows a converter during the outflow of the liquid steel through the taphole provided in the converter
- Figure 2 shows a section through the converter inner region at the tap hole with inserted, but not yet deformed
- FIG. 3 shows an enlarged sealing plug, 3a-3c differently shaped top deformed plates in section,
- Figure 4 shows a taphole in section with a cylindrical cross-section and cylindrical plug,
- Figure 6 shows a tap hole in section with outwardly directed
- Figure 7 is a tap hole in the X-shaped section, wherein a conical
- Figure 8 is a plan view of the upper, composed of a plurality of rings deforming plate.
- FIG. 1 shows a converter 2 in the tilted position, wherein it becomes clear that the liquid steel 6 can flow out through the taphole 3 in a jet.
- liquid slag 6 On the located in the converter 2 liquid slag 6 is a thick slag layer 7, which just can not flow in this situation.
- the taphole 3 extends from the outer wall 4 to the converter inner side 5 and is here at least cylindrically shaped.
- the liquid steel 6 flows here in a trolley 8 and can then be moved to the next processing step.
- the sealing plug 1, not shown here, has already been flushed out in this position of the converter 2 for a long time and, if one wishes, is located in the transport carriage 8, the amount being so small that it plays no role.
- Figure 2 shows a section through the wall of the converter 2 again, being inserted into the tap hole 3 here on the sealing plug 1.
- This stopper 1 is made of refractory material 10, which is enriched with hollow glass spheres, as will be made clear later. It has the shape of a cylinder 15 and is discussed by an inserted into the inner bore 18 pipe section 21, so that a setting device 7 can be pushed with the upper pulling claws 22 to in the position shown the upper Verformplatte 19 in the direction of the lower Verformplatte 20 to influence and cause to press against the wall 28 of the tap hole 3.
- the drawing claw 22 can be removed again by deactivating the corresponding elements through the tube piece 21, so that the sealing stopper then closes the taphole 3 until it is flushed out by the liquid steel 6.
- FIG. 3 shows a sealing plug 1, consisting of a refractory material 10.
- a refractory material 10 are 10 to 30% by weight.
- the plug 1 has the shape of a cylinder 15. Visible is the inner bore 18, in which the pipe section 21 is inserted and so the upper Verformplatte 19 with the lower
- the upper Verformplatte 19 is composed of different metal rings 23, 24, 25, wherein the flexibility decreases towards the outer ring 26, so that when pulling the pipe piece 21, first of all the inner metal ring 25 begins to deform and last the outer metal ring 23. This achieves the formation of a funnel,
- 3a, 3b and 3c show different material configurations for the upper Verformplatte 19, wherein according to Figure 3a, the thickness decreases from the inside to the outside, so that thereby also when influencing the upper Verformplatte
- FIGS. 4 to 7 it is possible to adapt it to the shape of the tap hole 3.
- the tap hole 3 is formed the same throughout and thus gives the shape of a cylinder again.
- a sealing plug 1 is introduced in the form of a cylinder 15.
- FIGS. 5 and 7 it is appropriate for the shape of the sealing plug 1 to give it the shape of a truncated cone 16, 16 ', so that it can optimally be secured against the wall 28 of the taphole 3.
- Figure 6 where the cylinder shape is advantageous in order to insert the sealing plug 1 also safely in the taphole 3 can.
- FIG. 8 shows an upper deforming plate 19, which is composed of differently shaped metal rings 23, 24, 25 and thus ensures that the uniform deformation of the sealing plug 1 is possible from the outer rim 26, even if the funnel is predetermined as desired in the center the liquid steel 6 then can flow at low cost later in the process.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Sealing Material Composition (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008039142A DE102008039142A1 (en) | 2008-08-21 | 2008-08-21 | Sealing plug for tilting converters |
PCT/DE2009/001160 WO2010020229A1 (en) | 2008-08-21 | 2009-08-14 | Seal plug for a tiltable converter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2315859A1 true EP2315859A1 (en) | 2011-05-04 |
EP2315859B1 EP2315859B1 (en) | 2013-09-18 |
Family
ID=41165592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09776099.5A Active EP2315859B1 (en) | 2008-08-21 | 2009-08-14 | Seal plug for a tiltable converter |
Country Status (8)
Country | Link |
---|---|
US (1) | US8486327B2 (en) |
EP (1) | EP2315859B1 (en) |
JP (1) | JP5554333B2 (en) |
KR (1) | KR20110054008A (en) |
CN (1) | CN102203299B (en) |
DE (1) | DE102008039142A1 (en) |
RS (1) | RS52078B (en) |
WO (1) | WO2010020229A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101839640B (en) * | 2010-03-15 | 2012-03-14 | 中国恩菲工程技术有限公司 | Self-heating smelting furnace |
DE102013002623A1 (en) | 2013-02-18 | 2014-08-21 | Veronica Stilkerieg | Stopper, useful for temporarily closing a tap hole of a converter, where the stopper is inserted from outer side of converter into tap hole and fixed in a region of inner side after the overflow of a liquid ash from liquid steel |
DE102020102105A1 (en) * | 2020-01-29 | 2021-07-29 | Veronica Stilkerieg | Sealing plugs for converter tap holes |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143867A (en) * | 1974-02-14 | 1979-03-13 | Dynamit Nobel Aktiengesellschaft | Metallurgical vessel |
GB8805186D0 (en) * | 1988-03-04 | 1988-04-07 | British Steel Corp | Closures for metallurgical vessel pouring apertures |
JPH0210450U (en) * | 1988-06-27 | 1990-01-23 | ||
JP3082990B2 (en) * | 1992-03-10 | 2000-09-04 | 東芝セラミックス株式会社 | Inflatable plug |
WO1993020246A1 (en) * | 1992-04-07 | 1993-10-14 | Berthold Stilkerieg | Process and device for preventing contamination of the tapping steel by flush slag in a tipping converter |
JPH07260372A (en) * | 1994-03-18 | 1995-10-13 | Toshiba Ceramics Co Ltd | Expansive plug for stopping taphole of container for metallurgy |
JP3078701B2 (en) * | 1994-03-18 | 2000-08-21 | 東芝セラミックス株式会社 | Inflatable plug for closing tap hole of metallurgical vessel |
DE19848004B4 (en) | 1998-10-17 | 2006-10-12 | Stilkerieg, Berthold, Dipl.-Ing. | Apparatus for preventing contamination of the tapping steel by feed slag in a tiltable converter with improved material composition |
JP2002327210A (en) * | 2001-04-27 | 2002-11-15 | Sumitomo Metal Ind Ltd | Plug for steel tapping hole in converter |
DE102005015469A1 (en) * | 2005-04-04 | 2006-10-05 | Stilkerieg, Berthold, Dipl.-Ing. | Cylindrical plug, for the temporary closure of a converter tap hole, is composed of a mixture of clay components and hydrocarbon compounds and a thermo set resin |
CN1317237C (en) * | 2005-10-27 | 2007-05-23 | 武汉钢铁(集团)公司 | Refractory castable in use for homogeneous stopper plug of floating plug, and preparation method |
-
2008
- 2008-08-21 DE DE102008039142A patent/DE102008039142A1/en not_active Withdrawn
- 2008-10-03 RS RS20080459A patent/RS52078B/en unknown
-
2009
- 2009-08-14 WO PCT/DE2009/001160 patent/WO2010020229A1/en active Application Filing
- 2009-08-14 US US13/059,698 patent/US8486327B2/en not_active Expired - Fee Related
- 2009-08-14 CN CN2009801423867A patent/CN102203299B/en not_active Expired - Fee Related
- 2009-08-14 EP EP09776099.5A patent/EP2315859B1/en active Active
- 2009-08-14 JP JP2011523300A patent/JP5554333B2/en not_active Expired - Fee Related
- 2009-08-14 KR KR1020117005781A patent/KR20110054008A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2010020229A1 * |
Also Published As
Publication number | Publication date |
---|---|
RS52078B (en) | 2012-06-30 |
EP2315859B1 (en) | 2013-09-18 |
WO2010020229A1 (en) | 2010-02-25 |
US8486327B2 (en) | 2013-07-16 |
US20110148013A1 (en) | 2011-06-23 |
JP5554333B2 (en) | 2014-07-23 |
KR20110054008A (en) | 2011-05-24 |
JP2012500334A (en) | 2012-01-05 |
DE102008039142A1 (en) | 2010-02-25 |
CN102203299B (en) | 2013-09-18 |
RS20080459A (en) | 2010-05-07 |
CN102203299A (en) | 2011-09-28 |
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