CN102325609A - Be specially adapted to the material preheating device of aluminium section bar, bar or aluminium ingot and be equipped with the equipment of this preheating device - Google Patents
Be specially adapted to the material preheating device of aluminium section bar, bar or aluminium ingot and be equipped with the equipment of this preheating device Download PDFInfo
- Publication number
- CN102325609A CN102325609A CN2010800085300A CN201080008530A CN102325609A CN 102325609 A CN102325609 A CN 102325609A CN 2010800085300 A CN2010800085300 A CN 2010800085300A CN 201080008530 A CN201080008530 A CN 201080008530A CN 102325609 A CN102325609 A CN 102325609A
- Authority
- CN
- China
- Prior art keywords
- preheating device
- preheating
- stove
- bar
- housing
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
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- 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
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
-
- 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
- C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/39—Arrangements of devices for discharging
-
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
Abstract
The present invention relates to a kind of equipment of material handling; Be specially adapted to aluminium section bar, bar or aluminium ingot; This equipment is made up of the stove of the device of a preheating material, a heat material, a machining cell and at least one delivery unit; Said stove is arranged on the preheating device back, and said machining cell is arranged on the stove back, and described delivery unit is transported to pre-heating device, preheating device and stove with material.Device A has a preheating device (1) that is designed to the storehouse, it is characterized in that: can preserve a plurality of materials (S), can extract or add a material (S) at least, use the exhaust of stove (2), can operate or heat preheating device (1).The invention still further relates to a kind of preheating device.
Description
Technical field
The present invention relates to a kind of material preheating device, be specially adapted to aluminium section bar, bar or aluminium ingot, this device is made up of housing that receives material and the heater that adds thermal material.
In addition; The invention still further relates to a kind of equipment of processing materials; Be specially adapted to the processing of aluminium bar, bar or aluminium ingot, this equipment is made up of the stove of the equipment of a preheating material, a heat associated materials, a machining cell and at least one delivery unit, and said stove is arranged on the preheating device back; Described machining cell is arranged on the back of stove, and described delivery unit is transported to pre-heating device, stove and machining cell with material.
Background technology
For the aluminium section forcing press, necessary is: on the technological temperature of confirming, heating is fabricated to the section bar of aluminium bar, bar or aluminium ingot.In general, to preliminary treatment, need heat associated materials.To the heating of associated materials, at first to use the hot stove of gas.
The effect of above-mentioned technology is: associated materials is heated to definite temperature, like this, just can reaches appropriate malleability, following step is: perhaps continue heating, perhaps introduce next processing technology, for example: the technology that relates to saw or shear.
To the material that aluminium is made, will note especially: this material will be heated to 500 ℃.In general, accomplish through two processes: before the processing technology of implementing next step, for example: directly connect the pressure forming of final heating process, at first material is heated to 200 ℃; Then, in heating furnace, material is heated in 530 ℃.
The burning gases that produce in the heating furnace contain preheating.Exhaust is through the discharge duct discharging, and for example: chimney, the temperature of exhaust are greatly between 200 ℃ to 500 ℃.
According to current technology status, confirmed a kind of device that adds thermal material.For example: can pass through streamline, to preheating device, material runs through a thermal treatment zone with mass transport.The time of staying may there are differences, and like this, can reach corresponding preheat temperature according to process speed.
The internal shortcoming of above-mentioned preheating device is: these devices can only continuous operation.In other words: through conveyer, on the direction of stove, transported material in the process of transportation continuously, adds thermal material.Because the size of aluminium bar, bar and ingot is different, seldom can the such material of one-time heating.
Goal of the invention
The objective of the invention is to propose a kind of preheating device, avoid one of above-mentioned shortcoming of prior art at least.
According to the present invention; A kind of device of preheating material is provided; Before this preheating device forms this preheating storehouse, a kind of preheating storehouse
or is arranged on heating process; Before perhaps being arranged on ensuing pre-heating technique; Like this, aluminium bar, bar or the ingot in storehouse or the storeroom can be heated on the preheat temperature that is up to 100 ℃ from 4 ℃ to 20 ℃ initial temperature (conforming to environment temperature).
Advantage of the present invention
Internal advantage of the present invention is: can wide variety of materials be warming up to 100 ℃ with simple mode and method, the advantage of preheating is: need not other the energy, only use the exhaust of the required stove of each heating process of back.
Mode of priority is: this preheating device is made up of a housing, and this housing has the effect in a storehouse, in the storehouse, can import a plurality of materials in order, then, according to pre-heating technique, extracts these materials once more.The preferred feed that receives is a bar, simultaneously, and the suitable length stock of bar.
Preheating device has closing element separately, and these elements constitute inlet open element and exit opening element.
Other advantage of closing element is: inlet open element and exit opening element have function element simultaneously, and these function element can be taken out material from the guide system in storehouse, then, can material be shifted into other device, for example: actuation means.
Another design with advantage is through gravity, in preheating device, to regulate the transportation of material, for example: the front and back transportation of seriation.Its mode is: the set-up mode of device case is to tilt to exit opening from the inlet opening.In other words: if from the outlet element, take out material, then single material continues to roll around a station, like this, can certain material be imported the inlet opening exactly.
The inlet opening has function element, and this function element can be seated in material on the closing element, and simultaneously, when closing element was closed, material got into the inside of housing.
Preheating device itself has at least one path of navigation, and this path is connected with the air exit of stove, for example: the flue of equipment.Like this, the exhaust gas heat on the relevant temperature can get into housing.Therefore, can utilize the temperature of exhaust,, material is warming up to the temperature that needs at warm-up phase with very simple, effective and efficient manner, thereby, the energy that requires saved.
Following explanation, drawing and claim have been set forth another preferred design.
Description of drawings
The sketch map of first embodiment of Fig. 1 equipment for treating materials is specially adapted to aluminium bar, bar and ingot;
The preheating storehouse of showing among Fig. 2 Fig. 1, the enlarged drawing of pre-heating device;
The sketch map of second embodiment of Fig. 3 equipment for treating materials is specially adapted to aluminium bar, bar and ingot;
The sketch map of the 3rd embodiment of Fig. 4 equipment for treating materials is specially adapted to aluminium bar, bar and ingot;
The amplification perspective illustration of the preheating device of showing among Fig. 5 Fig. 4;
The enlarged drawing of the preheating device of showing among Fig. 6 Fig. 4, part is the cross section;
The side figure of the preheating device of showing among Fig. 7 Fig. 6.
The specific embodiment explanation
In Fig. 1 to 7, set forth various embodiment, below specify:
First embodiment
Fig. 1 has showed first embodiment of device 1 according to the invention, and this device is applicable to preheating, is set directly at the stokehold, and this stove is used to add thermal material S.Need the material of heating, for example: the aluminium bar S that shows in Fig. 1, leave in conveying arrangement and the save set 4, through a kind of conveying arrangement, for example: be designed to the grip unit 6 of actuation means, with mass transport to the preheating device 1 of the present invention of need heating.The exhaust gas heat of output gets into the path of navigation of showing in the drawing 3 in the stove 2, and this heat gets into the housing of preheating device 1.Because physical characteristic, heat rises, and the upper extent of access to plant 1 simultaneously, refluxes around whole aluminium bar S of storage in device 1.
Preheating device 1 reality is made up of heat insulation housing 5, and like this, the heat of supply can pass through supply passageway 3, gets into the inside of housing, in device 1, is able to sufficient utilization.The design form of preheating device 1 is: in device, a material is set at least, this material and its longitudinal axis are tangent, nozzle 12 jet-stream winds.Put or overlapping storing before and after other the material, also accept exhaust stream.
Preheating device 1 has a closing element in the scope of housing 5, here, this element is an inlet open element 7, and this element design is a kind of propelling movement form (an optional swing form), and when grip unit 6 was carried an aluminium bar S, this element was opened.
Owing to be obliquely installed, therefore, the material into housing 5 that can roll.Next, inlet open element 7 is closed, through path of navigation 3; Import corresponding exhaust, directly it is imported housing 5, like this through nozzle 12; Exhaust can be in the scope of housing 5, top and the lower part of lateral circular aluminium bar S, thereby whole positions of evenly heating aluminium bar S.
Reliably to the transportation of arrow P direction, optimal way is: a thrust cylinder is set at least to the aluminium bar S that imports.
An aluminium bar S in the preheating device 1 then need be provided with an exit opening element 9 if desired, and this element can be opened, and the aluminium bar S of preheating can be received by transport 11.
For avoiding single aluminium bar S to move in the enable possition, a clamping element 10 can be set, this element can be as clamping element, in the inside of housing 5, the corresponding aluminium bar S of clamping.
Optimal way is: also the conducting position of stove is led in sealing.To this, a packaged unit can be set, these parts are on the position of conducting device 11, and are heat insulation fully.Like this, can avoid the aluminium bar S cooling of preheating.
Second implements example
Fig. 3 has showed second embodiment of preheating device 1.This device is arranged on the next door of conducting device.This preheating device 1 also is made up of a housing 5, in housing, in order, and on material extends direction longitudinally, a plurality of materials of parallel arrangement.The housing 5 of preheating device 1 not only has the space that receives material S, also has the closure elements and the exit opening element 9 of the open element 7 that is designed to enter the mouth.To the enforcement example of showing here, inlet open element 7 and inlet thereof are higher than exit opening element 9, in other words, are higher than opening, like this, form a kind of plane inclined, and on this plane, material S can move from the trend exit opening on direction of arrow P.
Through a grip unit 6, material S can be transported in inlet opening 7 scopes of preheating device 1 from storehouse 4.The design form of the inlet opening 7 that adopts here is: can receive material with the form of upset, simultaneously, have a receiving element 13.On the cross section, receiving element 13 is designed to L shaped shape, simultaneously, has a bearing journal 13a and a clamping axle journal 13b, and its role is to: material S is seated in the 7 last times of exit opening of opening, and avoids it to be not intended to break away from exit opening.Optimal way does, operates with the mode of hydraulic pressure, and in closing closed procedure, inlet shedding motion 7 overturns on the direction of arrow P 2, simultaneously, and the housing 5 of sealing preheating device 1.At this moment, each material S is positioned at the housing 5 of heater 1.To being received in device 1 housing 5 the material S of preheating, on the direction of arrow P 3, upset exit opening element 9.In exit opening element 9, a clamping element 14 is set, this element is made up of a gripper hook 14a and a clamping supporting member 14b.Optimal way is: in the inboard of mulching method, clamping element 14 is arranged on exit opening 9 longitudinally on the entire length.Possibility is: according to the orientation.The design clamping element.
Optimal way is: through gyration on the direction of arrow P 3, and the next material S of gripper hook 14a clamping exit opening element 9 fronts, the material S clamping supporting member 14b that reclines, the clamping supporting member is designed to axle journal.On this position, can pass through grip unit 6, material S is transferred on the transport 11.
Because in the housing 5 of preheating device 1, material tilts to opening outlet element 9, therefore, for avoiding rolling forward automatically, a clamping element 10 should be set, optimal way is: hydraulic pressure, pneumatic or this element of electric power control.This design can avoid each material on the direction of exit opening 9, to roll once more.If extracted a material S of exit opening element front, clamping element 10 just can be opened, and makes next material S pass through.
The 3rd embodiment
According to the present invention, in Fig. 4 to 7, showed the 3rd embodiment of this preheating device.According to Fig. 4, this installs 1 and integratedly advances in the device A, and in fact device A is made up of save set 4, stove 2, the grip unit 6 of a material S.In addition, a transport 11 is set, this device is delivered to stove with the material S of heating.
Preheating device 1 also is made up of a housing 5, in this housing, in order, on the direction of material longitudinal extension, arranges a plurality of materials.The housing 5 of this device 1 not only has a space that receives material S, also has an inlet open element 7 and an exit opening element 9.To listed examples here, being provided with of open element 7 of inlet highly is higher than exit opening element 9, like this, forms a kind of plane inclined, and on this plane, material S can move to exit opening automatically on the direction of arrow P.
Here the grip unit of setting forth 6 is transported to material S in the scope of inlet opening 7 of preheating device 1 from save set 4.The design form of inlet opening 7 is: form upset, reception material to cover are equipped with a receiving element 13.On the cross section, the Cross section Design of receiving element 13 is L shaped, has a bearing journal 13a and a clamping axle journal 13b, its role is to: in the 7 last times of inlet opening that material S is seated in upset, avoid material to be not intended to leave opening.
Optimal way is: with hydraulic way operation closing flow path, inlet opening 7 is closed the inlet opening and is installed 1 housing 5 with on the direction of arrow of P2.So, material S is positioned at the housing 5 of device 1.To preheating material S in the housing that is received in preheating device 15, exit opening element 9 overturns on arrow P 3 directions.Here in the scope of exit opening element 9, be provided with a clamping element 14, this element is made up of a gripper hook 14a and a clamping supporting member 14b.Optimal way is: on the entire bus development length of exit opening element 9, clamping element 14 is set, forms a kind of inboard of cover cap.Optional mode is that the part is provided with this element.
Optimal way is: through the oscillating motion on arrow P 3 directions, and the next material S of gripper hook 14a clamping exit opening element 9, material S is positioned on the clamping supporting member 14b that is designed to axle journal.On this position, can pass through grip unit 6, material is transferred to transport 11.
Because in device 1 housing 5, material S tilts to opening outlet element 9, therefore, for avoiding rolling forward automatically, a clamping element 10 should be set, optimal way is: pneumatic, hydraulic pressure or this element of electric power control.Clamping element can avoid each material on the direction of exit opening 9, to roll once more.If extracted a material of exit opening element 9 fronts, clamping element just can be opened, and makes next material pass through.
Common characteristic
All embodiment have common characteristic: through the exhaust of making in the actual heating process of stove, material S is carried out preheating.
In the 3rd embodiment, special set-up mode is: preheating device 1 be located immediately at stove 2 near.Like this, the path of exhaust is very short, and exhaust can be under the situation that does not have very big loss, the path of navigation 3 of gatherer 1.
According to the present invention, in Fig. 5 to 7, specifically described the preheating device of the 3rd embodiment.Device 1 described here is made up of housing 5, and housing is applicable to and receives a plurality of materials.Here the material of showing is a bar, and material is arranged in parallel according to its longitudinal extension direction.
Advantage of the present invention is: before the actual heating process of need heating material, adopt pre-heating technique, during preheating, mainly use the exhaust that produces in the actual heating process, optimal way is: use the exhaust that produces in the actual heating process fully.
Through the setting of preheating device, in other words, before being connected on actual heating process before it, can pass through effective and efficient manner or method; Save the energy: article or material have been kept in the housing that is designed to the storehouse before heating, accept preheating, like this; Form a warm, therefore, in real work; Can cut down the consumption of energy, simultaneously, can also reach corresponding temperature.
The definition tabulation
The object preheating device is specially adapted to the equipment of aluminium bar, bar or aluminium ingot and this preheating device of outfit
1. preheating device
2. stove
3. path of navigation
4. conveying arrangement and save set
5. housing
6. grip unit
7. inlet open element
8.--
9. exit opening element
10. clamping element
11. transport
12. nozzle
13. reception axle journal
The 13a bearing journal
13b clamping axle journal
14 clamping elements
The 14a gripper hook
14b clamping supporting member
S aluminium bar-material
The P direction of arrow
The P2 direction of arrow
The P3 direction of arrow
A equipment
Claims (5)
1. a material preheating device is specially adapted to aluminium section bar, bar or aluminium ingot, and this device has the preheating device of a housing and a preheating material, and housing is used for receiving a plurality of materials simultaneously, it is characterized in that, to the preheating of material (S):
The housing (5) of-preheating device (1) is designed to the storehouse,
-receive a plurality of material S simultaneously,
-being equipped with inlet open element and exit opening element (7,9), said elements can be closed,
-housing (5) has a heat-resisting path of navigation (3) at least.
2. according to described device in claim 1 or 2, it is characterized in that the heat of preheating device (1) is from the exhaust gas heat of the stove that adds thermal material.
3. according to described device in claim 1 or 2, it is characterized in that inlet open element and exit opening element (7,9) have clamping element.
4. described device of claim in requiring according to aforesaid right is characterized in that preheating device (1) is obliquely installed, and inlet open element (7) is higher than exit opening element (9).
5. the equipment of a material handling is specially adapted to aluminium section bar, bar or aluminium ingot, and this equipment is made up of the stove of the device of a preheating material, a heat material, a machining cell and at least one delivery unit; Said stove is arranged on the preheating device back, and said machining cell is arranged on the back of stove, and described delivery unit is transported to pre-heating device, preheating device and stove with material; Device A has a preheating device (1); This device is designed to the form in storehouse, it is characterized in that, can preserve a plurality of material S; At least can extract, add a material S, through bleeding, the heating preheating device (1) of stove (2).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009003527.3 | 2009-02-23 | ||
DE102009003527 | 2009-02-23 | ||
PCT/IB2010/000357 WO2010095032A1 (en) | 2009-02-23 | 2010-02-23 | Pre-heating device for objects, in particular aluminum extrusions, rods or bolts and a system having said pre-heating device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN102325609A true CN102325609A (en) | 2012-01-18 |
Family
ID=42236827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010800085300A Pending CN102325609A (en) | 2009-02-23 | 2010-02-23 | Be specially adapted to the material preheating device of aluminium section bar, bar or aluminium ingot and be equipped with the equipment of this preheating device |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120024284A1 (en) |
EP (1) | EP2398603A1 (en) |
CN (1) | CN102325609A (en) |
WO (1) | WO2010095032A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9563716B2 (en) * | 2012-10-30 | 2017-02-07 | Cerner Innovation, Inc. | Zero footprint application virtualization |
WO2020064360A1 (en) * | 2018-09-25 | 2020-04-02 | Extrutec Gmbh | Device for preheating rod-like workpieces |
CN111922110B (en) * | 2020-08-27 | 2022-01-04 | 嘉兴市利富通新材料科技有限公司 | Induction heating device for producing complex brass |
EP4317479A1 (en) * | 2022-08-04 | 2024-02-07 | IAS GmbH | Device for preheating bar-shaped metallic workpieces |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US576152A (en) * | 1897-02-02 | Furnace for heating metal rods | ||
US1594589A (en) * | 1925-01-02 | 1926-08-03 | Thaddeus F Baily | Continuous furnace |
US1672863A (en) * | 1927-04-30 | 1928-06-05 | Surface Comb Company | Semimuffle forge furnace |
US2404650A (en) * | 1943-08-11 | 1946-07-23 | Ford Motor Co | Processing kiln |
BE793161A (en) * | 1971-12-22 | 1973-04-16 | British Iron Steel Research | TEMPERATURE MEASUREMENT |
US3953247A (en) * | 1972-11-21 | 1976-04-27 | Prolizenz Ag | Method for heat treatment of material to be worked on, especially of aluminium or magnesium alloys |
DE2706345A1 (en) * | 1977-02-11 | 1978-08-17 | Mannesmann Ag | OVEN ARRANGEMENT FOR HEATING SLABS |
US4289944A (en) * | 1977-12-19 | 1981-09-15 | Reese Thurston F | Apparatus for reheating, storing and conveying cast bars |
US4776391A (en) * | 1979-10-04 | 1988-10-11 | Heat Exchanger Industries, Inc. | Heat exchanger method and apparatus |
DE3203433C2 (en) * | 1982-02-02 | 1984-08-09 | Friedrich Wilhelm Dipl.-Ing. 7761 Moos Elhaus | Heating furnace for elongated goods |
JPS6082244A (en) * | 1983-10-09 | 1985-05-10 | Mazda Motor Corp | Heater for forging stock |
US4619717A (en) * | 1984-04-23 | 1986-10-28 | Park-Ohio Industries, Inc. | Heating magnetic metal workpieces |
DE3738755A1 (en) * | 1987-10-29 | 1989-06-01 | Didier Eng | METHOD AND SYSTEM FOR WARMING SLABS, BLOCKS, STICKS, SHEETS, STEEL TAPES AND THE LIKE HEAT MATERIAL |
DE202008012597U1 (en) * | 2008-09-22 | 2009-01-15 | Extrutec Gmbh | Device for heating rod-like workpieces |
-
2010
- 2010-02-23 WO PCT/IB2010/000357 patent/WO2010095032A1/en active Application Filing
- 2010-02-23 EP EP10712484A patent/EP2398603A1/en not_active Withdrawn
- 2010-02-23 CN CN2010800085300A patent/CN102325609A/en active Pending
-
2011
- 2011-08-22 US US13/199,189 patent/US20120024284A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP2398603A1 (en) | 2011-12-28 |
WO2010095032A1 (en) | 2010-08-26 |
US20120024284A1 (en) | 2012-02-02 |
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Application publication date: 20120118 |