EP3580029A1 - Verfahren und extrusionsanlage zur herstellung eines hubels aus einer keramischen masse sowie hubel - Google Patents
Verfahren und extrusionsanlage zur herstellung eines hubels aus einer keramischen masse sowie hubelInfo
- Publication number
- EP3580029A1 EP3580029A1 EP18704959.8A EP18704959A EP3580029A1 EP 3580029 A1 EP3580029 A1 EP 3580029A1 EP 18704959 A EP18704959 A EP 18704959A EP 3580029 A1 EP3580029 A1 EP 3580029A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diameter
- mouthpiece
- range
- ceramic mass
- hubel
- 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.)
- Withdrawn
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001125 extrusion Methods 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 title abstract description 4
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000005056 compaction Methods 0.000 claims description 10
- 238000007373 indentation Methods 0.000 claims description 5
- 239000010902 straw Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 description 25
- 239000012212 insulator Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/003—Apparatus or processes for treating or working the shaped or preshaped articles the shaping of preshaped articles, e.g. by bending
Definitions
- the invention relates to a method and an extrusion system for producing a Hubeis of a ceramic mass with the features of the preambles 1 and 13.
- the invention further relates to a Hubel.
- a ceramic mass is used, which is formed by an extrusion process into a so-called Hubel.
- This Hubel also called blank, is then brought by means of cutting processes in a desired geometry for the respective application requirements. After drying, a glaze is usually applied, for example, in an immersion bath. Subsequently, the processed blank is fired and the insulator is obtained.
- the material density of such Hubel plays an important role in the quality of the later insulators.
- vacuum extrusion systems are used, which are often oriented vertically.
- High-voltage and extra-high voltage systems use large-diameter insulators with a diameter in the range of 200mm to 500mm or up to 600mm and a length in the meter range.
- DE 00 0001 258 775 B discloses such a vertical vacuum extrusion system. This system has a main press cylinder, a compression head and a cylindrical mouthpiece. The procedure and the main function of cylindrical mouthpieces can be found in "Technology of Ceramics", Volume 2, VEB Verlag, p 1 65-1 66.
- a ceramic mass is fed to a vertically arranged extruder and evacuated
- the aid of a press screw and a press head compacts and leaves the extruder through the mouthpiece adjoining the press head
- a so-called lifting table below the mouthpiece, which receives the ceramic mass to form the hoof ice and moves in synchronism with the exit velocity of the Hubeis in a vertical direction away from the mouthpiece.
- the present invention seeks to provide a method for producing a particular large-caliber Hubeis and an extrusion plant, with the aid of a large-caliber Hubel can be produced with a high density. Furthermore, the invention has the object to provide a Hubel with high density.
- the object is achieved by a method for producing a particular large-caliber Hubeis with the features of claim 1.
- the Hubel is made of a ceramic mass and has a first diameter.
- the first diameter describes a maximum outer diameter of the Hubeis and thereby defines a Hubel penmesser.
- a ceramic mass is forced through a mouthpiece and received by a Hubeltisch which exerts a counter pressure on the mouthpiece leaving mass.
- the mouthpiece extends in a vertical direction from a smallest interior diameter in particular conically expanded to an outlet diameter, wherein the inner diameter is smaller than the diameter of the hub.
- the advantage of this embodiment is to be seen in the simple production ofprimarilykalibriger Hubel with high material density. This results in the finished insulators after firing to a higher mechanical (bending) strength. Investigations have shown that the strength - compared to conventionally manufactured Hubein / insulators - could be increased by about 20% to 25%. This in turn allows for the design of insulators with the increased strength and to use smaller or thinner insulators with less material at the same strength values. This results in significant material savings. Overall, the quality of the Hubel and the later insulators are improved by the new process. In addition, this also reduces the reject rate in the production of the Hubel. In addition, this also allows the production of Hubein very large diameter, their production (with sufficient strength) was previously not possible with conventional methods.
- the minimum inner diameter in all variants preferably has values in the range from 350 mm to 500 mm, in particular values in the range between 430 mm and 460 mm.
- the advantage of this embodiment is a uniform and simple installation of the mouthpiece variants.
- the mouthpiece extends in a vertical direction under a
- the cone angle of the mouthpiece is preferably in the range between 2 ° and 5 ° and in particular in the range of 3 ° to 4 °.
- a cone angle in this angular range has proven to be particularly suitable for the production in particularcontinukalibriger Hubel with a diameter of more than 450mm, which have a high strength.
- the mouthpiece has a conical indentation at an upper end.
- the mouthpiece has at its upper end a larger diameter compared to the minimum inner diameter. This is used, in particular for small inner diameters, to widen the mouthpiece on a flange side to the pressing head to a defined size in order to ensure a uniform flange for fastening for different mouthpieces. Due to the conical indentation, the ceramic mass additionally experiences compaction in the catchment area.
- the mouthpiece widens continuously conically from its upper end to its lower end.
- the mouthpiece therefore already has the inner diameter at its upper end.
- the first diameter (Hubel penmesser) preferably has values in the range of 400mm to 650mm and in particular in the range of 430mm and 620mm.
- the extension of the mouthpiece is used in particular to set a desired diameter of the Hubeis.
- the exit diameter preferably has values in the range between 270 mm and 600 mm, in particular in the range from 400 mm to 570 mm.
- the ceramic mass leaving the mouthpiece is expanded by the back pressure to the desired first diameter of the Hubeis.
- the outlet diameter of the mouthpiece is therefore less than the (maximum) outer diameter of the Hubeis.
- the Hubel is therefore even conical and tapers from its first diameter (maximum diameter of the hub) up to the outlet diameter.
- the first diameter is greater than the exit diameter by 5% to 15% and more preferably by 7% to 12%.
- the outer diameter of the Hubeis is greater than the exit diameter of the mouthpiece.
- the hubs typically have a length in the range of 2m to 3.5m. Typically, the length correlates with the diameter of the bowl, preferably at least approximately proportionally. Short Hubel (eg 2m) therefore have a small Hubel penmesser of z. B. 400mm - 450mm and long Hubel (eg 3.5m) has a large diameter of z. B. 580mm to 630mm.
- the Hubel thereby widening preferably conically at an angle, which is preferably in the range of 4 ° to 7 ° and in particular in the range of 5 ° to 6 °.
- the area ratio of a first cross-sectional area, which is determined by the (maximum) outer diameter of the Hubeis, and a second cross-sectional area defines a compression.
- the second cross-sectional area is an exit-side cross-sectional area of an extruder in which a compression screw is arranged, which typically ends at the end of the extruder.
- the mouthpiece is arranged, wherein usually between the mouthpiece and the extruder, a pressing head is arranged.
- the compression is preferably in the range between 3 and 5. It is for example "adjusted" by a suitable choice of the mouthpiece with a defined internal diameter and / or by the setting of a suitable backpressure With increasing first diameter (diameter of the neck), the compression usually decreases.
- the compression is preferably set to a value of 3.5 to 5.
- the compaction for jackets having a first diameter in the range of 500 mm to 650 mm advantageously has a value in the range of 3 to 4.
- the advantage of the chosen compaction values is a reduced failure rate of the hubs over conventional hubs, which are manufactured with a cylindrical mouthpiece and have lower compaction. The failure rate has been reduced by one third to one quarter over such conventional stroke.
- the back pressure of the lifting table has a value of more than 0.5 N / mm 2 and in particular more than 1 N / mm 2 .
- the value is at most 3.5N / mm 2 or at most 2.5N / mm 2 .
- the back pressure is in the range between 1, 5N / mm 2 and 2.5 N / mm 2 .
- large-caliber Vollkernhubel be prepared, which are usually made of solid core insulators.
- Insulator type offers improved dielectric strength in the range of high and high voltage compared to hollow insulators.
- the method described here can also be used for the production of hollow insulators.
- the object underlying the invention is further achieved by an extrusion system for producing a Hubeis with the features of claim 13.
- the Hubel is formed from a ceramic mass having a predetermined first diameter.
- the extrusion plant has an extruder, and at the end a mouthpiece. Usually, between the extruder and the mouthpiece still a pressing head, often a stepped pressing head arranged.
- the mouthpiece extends in a vertical direction and has an outlet diameter on the end.
- the extrusion plant has a movable in and against the vertical direction Hubeltisch and a control device.
- the extruder is vertically aligned and formed as a vacuum extruder. In this case evacuation chambers are usually arranged inside the extruder in order to vent the ceramic mass and thus to produce a complete material throughput and to eliminate quality-reducing inclusions within the ceramic mass.
- the vertical construction offers an advantage in that the ceramic mass moves in addition to the force generated by the screw and the friction occurring due to their own mass in the direction of the mouthpiece and thus takes place a mechanical relief of the screw press. Based on this, this design offers advantages in terms of maintenance and longevity of the extruder.
- the pressing head is for example designed such that it is realized as a stepped pressing head. During the manufacturing process, the ceramic mass undergoes compression in the pressing head to the hub before it exits via the end piece attached to the pressing head.
- the mouthpiece widens conically from a (minimum) inner diameter to the exit diameter.
- the inner diameter and preferably also the exit diameter is smaller than the first diameter (maximum diameter of the hub).
- the object is further achieved by a Hubel, which is in particular made by means of the method described above.
- the Hubel tapers conically at an angle from an upper end to a lower end. This conical geometry is created by the back pressure of the Hubelticians on the mouthpiece leaving ceramic mass in the formation of the Hubeis.
- the angle is advantageously in the range between 4 ° and 7 °, in particular in the range of 5 ° to 6 °.
- FIGS. show partly in highly simplified representations:
- 2A-B is a longitudinal sectional view of two embodiments of a variant
- Mouthpiece 3 is a fragmentary longitudinal sectional view of a
- Vacuum extrusion plant as well
- a longitudinal sectional view of a Hubeis A longitudinal sectional view of a Hubeis.
- FIG. 1 shows a basic structure of an extrusion plant 2 for producing a Hubeis 10 of a ceramic mass having a predetermined first diameter D1.
- the first diameter D1 defines a maximum outer diameter of the Hubeis 10, in the present case also referred to as Hubel penmesser.
- the extrusion plant 2 shown in Figure 1 is realized in a vertical construction and extends in a vertical direction 12.
- the extrusion plant 2 is used for the production of particularfirmkalibrigen Hubein 10.
- the vertical construction allows exploitation of the force acting on the ceramic mass gravity. Since the production direction and the direction of gravity correspond, the promotion of the ceramic mass is favored.
- the extrusion plant 2 has an extruder 4, a subsequent to the extruder 4 pressing head 6 and a mouthpiece 8.
- the mouthpiece 8 joins seen in the vertical direction 12 to the pressing head 6 and has an outlet diameter D2 on the end.
- the second diameter D2 is smaller than the first diameter D1.
- the extruder 4 is preferably designed as a vacuum extruder. By this configuration, a venting of the ceramic material is possible.
- the pressing head 6 is formed such that it has a plurality of pressing stages.
- a so-called stepped pressing head allows a high compression of the ceramic mass.
- the mouthpiece 8 is preferably attached by means of a screw end to the pressing head 6 and is used in addition to the pressing head 6 for training of the Hubeis 10. By screwing a low-cost replacement of the mouthpiece 8 is guaranteed.
- the mouthpiece 8 is conical.
- the mouthpiece 8 therefore has a (minimum) inner diameter D3, from which it widens conically to the outlet diameter at a cone angle ⁇ .
- the mouthpiece 8 typically has a length L in the vertical direction 12 which is in the range between 500 mm and 1200 mm and in particular in the range from 700 mm to 900 mm.
- a movable in and counter to the vertical direction 12 lifting table 14 is formed below the mouthpiece 8. This and the entire extrusion system 2 are controlled by a control device 1 6.
- the lifting table 14 is designed such that it exerts a counter-pressure on the mouthpiece 8 leaving ceramic mass during operation.
- the ceramic mass leaving the mouthpiece 8 is preferably further expanded to form the hoop ice 10 to the first diameter D1. As a result, a conically widening Hubel 10 is formed.
- control unit 1 6 and the lifting table 14 are designed such that they adjust the counter-pressure to a value of at least 0.5N / mm 2 , in particular of more than 1 N / mm 2 or more than 1, 5N / mm 2 during operation ,
- the back pressure preferably has a value of 2.5 N / mm 2 . In particular, it is in the range of 1, 5 N / mm 2 to 2.5N / mm 2.
- the Control unit is connected, for example by means of a control line to the Hubeltisch 14. Overall, the control unit 16 is designed such that it controls the entire extrusion process in the desired manner.
- the control variable for controlling the Hubelticians is preferably the counterforce.
- FIGS. 2A and 2B show longitudinal sections of variants of the mouthpiece 8.
- the mouthpieces 8 preferably have an upper end 8a, on which a flange for attachment to the pressing head 6 is formed.
- the mouthpiece 8 also has a lower end 8b, on which the outlet diameter D2 is defined.
- the respective mouthpiece 8 each has a minimum inner diameter D3. From this, the mouthpiece widens in particular conically under a cone angle ⁇ on the outlet diameter D2 Preferably, a continuous, uniform conical enlargement is provided. In principle, however, can not be provided conical sections, z. B. at the lower end 8b, a cylindrical end portion,
- the cone angle ⁇ is in a range between 2 ° and 5 °, in particular in a range of 3 ° to 4 °.
- this mouthpiece topology In connection with the pressing by the Hubeltisch 14 is made possible by this mouthpiece topology by a preferably 50% higher compression of the ceramic mass in the training for Hubel 10, as in the case of the prior art Hubein.
- the mouthpiece 8 additionally has a conical indentation 18 at the upper end 8a, so that the mouthpiece initially tapers from an inlet diameter D4 to the inner diameter D3.
- the conical intake 18 extends only over a small portion of the length L1 of the mouthpiece 8, for example, a maximum of over 5% or at most over 10% of the length L1.
- this indentation 18 serves to bring the upper end 8a with the flange to a defined size to a plurality of mouthpieces 8 with different inner diameter D3 and exit diameter D2 with a flange of the same To train size.
- different mouthpieces 8 can be connected to a same pressing head 6.
- the mouthpiece 8 widens continuously from the upper end 8a to the lower end 8b. In this variant, therefore, the inner diameter D3 is set directly by the upper end 8a.
- the extruder 4 has a vertical construction known per se.
- the extruder 4 shown in longitudinal section has a first extruder part 22, a second extruder part 24, a press screw 20, the pressing head 6 and the mouthpiece 8.
- the second extruder part 24 closes at the end viewed in the vertical direction 12 to the first extruder part 22 at.
- the first extruder part 22 serves to pre-compact the ceramic mass, which is further compressed by the press screw 20 in the further course.
- the second extruder part 24 has longitudinal strips in the interior on the circumferential side. The longitudinal strips support the promotion of the ceramic mass within the second extruder part 24.
- the extruder 4 is designed overall as a vacuum extruder and has for this purpose evacuation chambers, which are not shown in Fig. 3. With the help of evacuation chambers of the ceramic mass are removed by venting any inclusions and achieved a uniform material throughput.
- the promotion of the ceramic mass is realized by means of the press screw 20.
- it rotates and compresses the ceramic mass within the extruder 4 by rotation about an axis of rotation 21.
- the extruder screw 20 undergoes mechanical relief due to the inherent movement of the ceramic mass caused by gravity.
- the press screw 20 has at its end on a Endschnecken published, which is connected to a central shaft via a toothing (Hirth toothing).
- the end of the second extruder 24 subsequent pressing head 6 serves to densify the ceramic mass.
- the surface at the end-side transition point between the second extruder part 24 and the pressing head 6 defines a second cross-sectional area F2.
- the pressing head 6 shown in Fig. 3 is designed as a stepped pressing head, which also has circumferentially longitudinal strips inside.
- the conical mouthpiece 8 adjoins the pressing head 6 at the end. At the lower end 8b of the mouthpiece 8 located in the vertical direction 12, this has the exit diameter D2.
- Fig. 3 the mouthpiece 8 is still a central linkage 26 is arranged, on the end a bell-shaped extension is attached. This serves to form a central cavity.
- the mouthpiece 8 is therefore provided for forming a Hohlhubeis.
- the Hubel 10 shown in Figure 4 is designed asnostikalibriger Vollhubel. Full-stroke or Fullkernhubel this geometry are preferably used in high-voltage and ultra-high voltage technology, since they are made so-called full core support insulators. This type of insulator offers advantages in the area of dielectric strength compared to hollow insulators and is therefore preferred for use in the high and very high voltage range.
- the Hubel 10 preferably has a ⁇ at an angle from an upper end to a lower end conical course.
- the angle is
- the Hubel 10 preferably has at a lower end the first diameter D1 through which a first cross-sectional area F1 is defined.
- the first diameter D1 corresponds to the maximum outer diameter of the Hubeis.
- the Hubel 10 At an upper end of the Hubel 10 has a diameter corresponding to the outlet diameter D2.
- the Hubel 10 has in the vertical direction 12 from an upper end to a lower end a length L2. This is typically in the range of 2m to 3.5m.
- the area ratio between the first cross-sectional area F1 and the second cross-sectional area F2 defines a compression, which is preferably set to a value between 3 and 5.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017202043.1A DE102017202043B4 (de) | 2017-02-09 | 2017-02-09 | Verfahren und Extrusionsanlage zur Herstellung eines Hubels aus einer keramischen Masse sowie Verwendung des Hubels zur Herstellung eines Isolators |
PCT/EP2018/053222 WO2018146224A1 (de) | 2017-02-09 | 2018-02-08 | Verfahren und extrusionsanlage zur herstellung eines hubels aus einer keramischen masse sowie hubel |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3580029A1 true EP3580029A1 (de) | 2019-12-18 |
Family
ID=61198848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18704959.8A Withdrawn EP3580029A1 (de) | 2017-02-09 | 2018-02-08 | Verfahren und extrusionsanlage zur herstellung eines hubels aus einer keramischen masse sowie hubel |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3580029A1 (de) |
JP (1) | JP6937378B2 (de) |
CN (1) | CN110267784B (de) |
DE (1) | DE102017202043B4 (de) |
WO (1) | WO2018146224A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019204236A1 (de) * | 2019-03-27 | 2020-10-01 | Putzmeister Engineering Gmbh | Extruderkopf, Extrudersystem und Verwendung eines Extruderkopfs und/oder eines Extrudersystems |
CN111251419A (zh) * | 2020-03-31 | 2020-06-09 | 常灿华 | 一种日用陶瓷把坯机 |
CN115319893A (zh) * | 2022-06-24 | 2022-11-11 | 湖南太阳电力电瓷电器制造有限公司 | 一种支柱绝缘子快速成型装置及其工作原理 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB729036A (en) | 1951-07-05 | 1955-05-04 | Garford Bennett Ltd | Improvements in and relating to extrusion machines |
US2789334A (en) | 1953-08-18 | 1957-04-23 | M S Bowne | Clay pipe cutting mechanism |
DE1684015A1 (de) | 1964-03-12 | 1971-03-11 | Keramikmaschinen Goerlitz Veb | Vakuumstrangpressaggregat mit laengsgeteiltem Pressenzylinder |
DE2601715C3 (de) * | 1976-01-19 | 1979-03-22 | Gesellschaft Fuer Keramikmaschinen Mbh & Co Kg, 3418 Uslar | Verfahren und Vorrichtung zur Herstellung von Schmelztiegeln, insbesondere Glasschmelzhäfen |
DD130412A3 (de) | 1976-05-31 | 1978-03-29 | Guenter Schulz | Verfahren und vorrichtung zum umformen keramischer massen |
JP2000026155A (ja) * | 1998-07-08 | 2000-01-25 | Mitsubishi Electric Corp | セラミックスの製造方法 |
JP4066316B2 (ja) * | 2001-12-25 | 2008-03-26 | 日立金属株式会社 | セラミックハニカム構造体の製造方法 |
JP4462405B2 (ja) * | 2003-12-24 | 2010-05-12 | 修身 相羽 | 陶器補修又は造形変更用粘土および陶器補修又は造形変更方法 |
FR2875428B1 (fr) * | 2004-09-22 | 2006-11-17 | Imerys Toiture Soc Par Actions | Procede de fabrication d'elements de terre cuite comportant des alveoles paralleles |
DE102010002248A1 (de) | 2010-02-23 | 2011-10-06 | Bhs Tabletop Ag | Vorrichtung und Verfahren zur Aufbereitung von Porzellanmasse |
CN105034145B (zh) * | 2015-07-10 | 2017-07-21 | 台州东新密封有限公司 | 用于挤压成型封闭端陶瓷管的模具及方法 |
CN205889482U (zh) * | 2016-08-15 | 2017-01-18 | 广东银圭新材料科技有限公司 | 一种陶瓷复合材料生产用造粒装置 |
-
2017
- 2017-02-09 DE DE102017202043.1A patent/DE102017202043B4/de not_active Expired - Fee Related
-
2018
- 2018-02-08 WO PCT/EP2018/053222 patent/WO2018146224A1/de unknown
- 2018-02-08 EP EP18704959.8A patent/EP3580029A1/de not_active Withdrawn
- 2018-02-08 CN CN201880010889.8A patent/CN110267784B/zh not_active Expired - Fee Related
- 2018-02-08 JP JP2019543034A patent/JP6937378B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2020506831A (ja) | 2020-03-05 |
WO2018146224A1 (de) | 2018-08-16 |
DE102017202043A1 (de) | 2018-08-09 |
CN110267784B (zh) | 2022-08-02 |
CN110267784A (zh) | 2019-09-20 |
DE102017202043B4 (de) | 2020-08-06 |
JP6937378B2 (ja) | 2021-09-22 |
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