EP3302870A1 - Vorrichtung und verfahren zum verschweissen eines ersten rohrabschnitts mit einem zweiten rohrabschnitt - Google Patents
Vorrichtung und verfahren zum verschweissen eines ersten rohrabschnitts mit einem zweiten rohrabschnittInfo
- Publication number
- EP3302870A1 EP3302870A1 EP16727303.6A EP16727303A EP3302870A1 EP 3302870 A1 EP3302870 A1 EP 3302870A1 EP 16727303 A EP16727303 A EP 16727303A EP 3302870 A1 EP3302870 A1 EP 3302870A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe section
- support
- segments
- support segments
- longitudinal axis
- 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- Withdrawn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
- 238000003466 welding Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims description 42
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 241001016380 Reseda luteola Species 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Definitions
- the invention relates to a device and a method for welding a first pipe section with a second pipe section.
- US 2003/0047650 A1 describes a device for welding two pipe sections.
- the device comprises plate-shaped support segments which are arranged between two frusto-conical bodies. When moving towards each other, the bodies slide on inclined surfaces of the bearing segments in order to displace them radially outwards.
- the device comprises a plurality of support segments, which can be moved radially outwards with the aid of actuators.
- the device comprises annular segment-shaped support segments which are arranged between two frusto-conical bodies. When moving towards one another, the bodies slide on inclined surfaces of the support segments in order to displace them radially outward.
- FR 2 801 819 A1 describes a device for welding two
- the object of the present invention is to provide an improved device for welding a first pipe section to a second pipe section. Accordingly, an apparatus for welding a first pipe section to a second pipe section is proposed. The device is along a
- the device comprising: a support device, the plurality of
- support segments which are radially displaceable relative to the longitudinal axis of the device to bring this inside with the first pipe section and the second pipe section in abutment and a transmission device which is adapted to an axial displacement of the support segments along the longitudinal axis in the radial displacement of the same implement, wherein the support means comprises a first end plate and a second end plate, between which the support segments
- Welding pad can be dispensed with. Because the device is removable from the pipe sections again, it can be used as often as desired.
- the device is preferably constructed from a few individual parts and can thereby be produced quickly and inexpensively. The device is after the
- Pipe sections are preferably made of an aluminum material.
- the device can also be used for welding pipe sections made of stainless steel.
- the support means a circumferential groove for a weld root gas and a connection for a
- the device can be moved from a welding position to a retracted position. In particular, in the welding position, all the bearing segments are simultaneously on the inside on the first pipe section and the second pipe section.
- the device may also be referred to as a welding device or welding pad.
- the support segments in each case radially on the outside a shell part surface, wherein the shell part surfaces together a
- Welding position of the device be flush or axially offset from each other.
- the support segments are preferably ring segments.
- the transmission device is adapted to displace the same radially outward upon axial displacement of the support segments towards each other.
- the support means can be so easily pressed with a defined force on the inside of the pipe sections.
- the transmission device is adapted to displace the same radially inward in an axial displacement of the support segments away from each other. As a result, the device can be removed particularly quickly and easily from the pipe sections.
- the transmission device comprises oblique surfaces provided on the support segments on which the support segments slide during the axial displacement of the same.
- each support segment slides on the inclined surfaces of two adjacent support segments.
- each overlay segment comprises two
- each oblique surface is inclined relative to a front side of the respective support segment facing along the longitudinal axis.
- the inclined surfaces preferably extend radially in the direction of the longitudinal axis.
- an inclination angle of each inclined surface is 45 °.
- the support device comprises a first end plate and a second end plate, between which the bearing segments are arranged.
- the end plates are in particular plate-shaped. Preferably, each has
- each support segment preferably has a through bore provided with an internal thread into which two screws are screwed on both sides.
- the end plates and / or the screws may be part of the transmission device.
- the support segments are alternately connected to the first end disk and the second end disk such that a first support segment is radially and axially displaceable relative to the second end disk and radially and axially displaceable with respect to the first end disk and an adjacent second support segment with respect to the first end disk and the second end plate is radially and axially displaceable.
- the end discs are screwed with the help of the in the bearing segments
- Screws captive connected to the bearing segments Preferably, two first and two second support segments are provided, which are arranged alternately. According to a further embodiment, the end plates with the aid of a
- Displacement device along the longitudinal axis of the support device selectively toward or away from each other.
- the displacement device can be arranged on one of the end disks or between the end disks.
- the displacement device is pneumatically, hydraulically, electromotively or manually operable.
- the displacement device for example, a pneumatic or
- Hydraulic cylinder an electric motor or a threaded screw include.
- the support segments are made of a stainless steel material.
- the bearing segments can be made of austenitic steel, in particular 1.4301.
- the support segments may be made of a nickel or nickel-based alloy.
- a method for welding a first pipe section with a second pipe section comprises the following steps: providing a device which can be inserted along a longitudinal axis thereof into the first and second tube sections, the device having a
- Support device comprising a plurality of support segments which are radially displaceable with respect to the longitudinal axis of the device to bring this inside with the first pipe section and the second pipe section in abutment, wherein the support segments between a first end plate and a second end plate of the support means are arranged; Placing the device in the first
- Supporting device rests on the inside of the first pipe section and on the second pipe section; Welding the first pipe section to the second pipe section; and removing the device from the first pipe section and the second pipe section, wherein prior to removing the device from the first pipe section and the second pipe section, the support segments are displaced radially by means of an axial displacement of the end disks, that of the first pipe section and the second Tube section are spaced on the inside.
- the device can be pulled, for example, by means of a steel cable, a wire or a chain from the welded pipe sections to a pipe.
- the device can hereby also be pulled through an arc of the pipeline.
- the support segments are radially displaced so that they are spaced from the inside of the first pipe section and the second pipe section.
- the radial displacement of the support segments inward can be done by an axial displacement of the end plates.
- Fig. 1 shows a schematic sectional view of an embodiment of an apparatus for welding a first pipe section with a second pipe section
- Fig. 2 shows a schematic perspective sectional view of the device according to Fig. 1;
- Fig. 3 shows a schematic perspective view of the device according to Fig. 1;
- FIG. 4 shows a further schematic perspective view of the device according to FIG. 1;
- Fig. 5 shows a further schematic perspective view of the device according to Fig. 1;
- Fig. 6 shows a schematic perspective view of an embodiment
- FIG. 7 shows a further schematic perspective view of the support device according to FIG. 6;
- FIG. 7 shows a further schematic perspective view of the support device according to FIG. 6;
- FIG. 8 shows a schematic side view of the support device according to FIG. 6;
- FIG. 9 shows a further schematic side view of the support device according to FIG. 6; FIG.
- FIG. 10 shows a schematic plan view of the support device according to FIG. 6; FIG. and
- FIG. 11 shows a schematic block diagram of an embodiment of a
- the device 1 and 2 each show a schematic sectional view of a device 1 for welding a first pipe section 2 with a second pipe section 3.
- the device 1 may be referred to as a welding device or welding pad.
- the pipe sections 2, 3 are welded together by means of a weld 4 on stump.
- the weld 4 may be V-shaped.
- the pipe sections 2, 3 are preferably made of an aluminum material.
- the welded together pipe sections 2, 3 form a pipe 5, for example, for conducting liquefied natural gas (LNG).
- LNG liquefied natural gas
- the device 1 is along a longitudinal axis L thereof in the first
- the device 1 comprises a support device 6, which comprises a plurality of support segments 7 to 10.
- the support device 6 has at least three support segments 7 to 10. As shown in FIGS. 3 to 5, the support device 6 has four support segments 7 to 10.
- the support device 6 is shown in FIGS. 6 and 7 each in a schematic perspective view.
- FIGS. 8 and 9 show the support device 6 in each case in a schematic side view.
- FIG. 10 shows the support device 6 in a schematic plan view. In the following, reference is made to FIGS. 6 to 10 at the same time.
- the support device 6 is seen along the longitudinal axis L annular.
- Each support segment 7 to 10 in each case has a jacket part surface 1 1 to 14 radially on the outside.
- the shell part surfaces 1 1 to 14 together form a circular cylindrical lateral surface 15 of the support device 6.
- Each support segment 7 to 10 has a through hole 16 to 19.
- the through holes 16 to 19 are each provided with an internal thread.
- the bearing segments 7 to 10 are made of a stainless steel.
- the support segments 7 to 10 can be made of austenitic steel, in particular of 1.4301.
- the support segments 7 to 10 can be made of a nickel or nickel-based alloy.
- the support segments 8, 10 are larger than the support segments 7, 9. That is, the support segments 8, 10 are in the circumferential direction of
- Supporting device 6 larger than the support segments 7, 9.
- the support segments 8, 10 may be referred to as first support segments 8, 10 and the support segments 7, 9 may be referred to as second support segments 7, 9.
- the support segments 7 to 10 each have, along the longitudinal axis L, a front side or first end side 20 and a rear side or second end side 21.
- Each support segment 7 to 10 has a first end section 22 and a second end section 23 in the circumferential direction.
- Each end portion 22, 23 each has an inclined surface 24, 25.
- the inclined surfaces 24, 25 are inclined towards and away from each other. Sloping surfaces 24, 25 adjacent bearing segments 7 to 10 are each inclined the same.
- the inclined surfaces 24, 25 extend radially to the longitudinal axis L. As shown in FIGS. 8 and 9, the inclined surfaces 24, 25 are inclined relative to the first end face 20 of the respective support segment 7 to 10.
- An inclination angle ⁇ may be, for example, 45 °.
- the Device 1 for this purpose comprises a transmission device 26 which is adapted to implement an axial displacement of the support segments 7 to 10 along the longitudinal axis L in the radial displacement thereof.
- the support segments 7 to 10 are displaced radially outwards during axial superimposition of each other, so that the circular cylindrical surface 15 rests on the inside of the first pipe section 2 and on the second pipe section 3.
- the cylindrical lateral surface 15 bears against the entire surface of the first pipe section 2 and on the second pipe section 3.
- the transmission device 26 is adapted to displace the same radially outward in an axial displacement of the support segments 7 to 10 toward each other.
- the transmission device 26 is also adapted to displace the same radially inward with an axial displacement of the support segments 7 to 10 away.
- the transmission device 26 includes those on the support segments 7 to 10
- the support device 6 and in particular the transmission device 26 further comprises a first end plate 27 and a spaced from the first end plate 27 second end plate 28th
- the second end plate 28 is plate-shaped and has a central opening or a central bore 29. Furthermore, the second end plate 28 comprises four oblong holes 30 to 33 arranged at an angle of 90 ° to one another.
- the first end plate 27 has analogous to the second end plate 28 also elongated holes 30 to 33. Furthermore, the first end disk 27 comprises a base section 34 arranged centrally and rotationally symmetrically with respect to the longitudinal axis L. The base section 34 merges with a peripheral bevel 35 into a disk-shaped support section 36 of the first end disk 27. At the slope 35 is a respective slope 37 of the support segments 7 to 10.
- the base portion 34 has a central receiving portion 38 which comprises a double-stepped diameter.
- the device 1 may have a displacement device 39 shown in FIG. 1.
- the displacement device 39 may comprise an actuator.
- Displacement device 39 is adapted to displace the end plates 27, 28 toward or away from each other.
- the displacement device 39 may be pneumatically, hydraulically, electromotively or manually operable.
- the actuator such as a
- the device 1 further comprises eight screws 40, 41, each one
- Supporting segment 7 to 10 two screws 40, 41 are assigned.
- the screws 40, 41 are passed through the slots 30 to 33 of the end plates 27, 28.
- the screws 40, 41 are in the through holes 16 and 18 of the respective
- Support segments 7 and 9 screwed in such a way that the screws 40, 41 meet centrally in the through holes 16 and 18.
- the support segments 8, 10 are also each provided with screws 40, 41, which are screwed into the through holes 17, 19.
- the screws 41 are so short that the
- Pad segments 8, 10 with respect to the second end plate 28 are not axially displaceable. However, a radial displacement along the slots 31, 33 is possible.
- 1, 2 and 3 show the device 1 in a position, in particular in a welding position, in which the end plates 27, 28 are moved towards each other, so that the
- Support segments 7 to 10 with respect to the longitudinal direction L are displaced radially outwards at maximum, to rest on the inside of the pipe sections 2, 3. In particular, in this position, the end plates 27, 28 rest on both sides of the support segments 7 to 10.
- the support segments 7 to 10 are not axially offset from one another in the welding position. Depending on an inner diameter of the
- the support segments 7 to 10 may be offset in the welding position, however, also to each other. That is, it is not absolutely necessary in the welding position that the support segments 7 to 10 are arranged axially unequally.
- the gear mechanism 26, which comprises the inclined surfaces 24, 25 the support segments 7 to 10 are displaced radially outwards when the end disks 27, 28 are moved one on the other so that they come into contact with the pipe sections 2, 3.
- the support segments 8, 10 are fastened to the second end disk 28 with the aid of the screws 41 in such a way that the support segments 8, 10 can only displace radially relative to the second end disk 28 and not axially.
- End plate 27 is axially displaceable with respect to the support segments 8, 10.
- the support segments 7, 9 are axially displaceable with respect to both end plates 27, 28. 4 and 5 show the device 1 in a position, in particular in a retracted position, in which the end plates 27, 28 are displaced apart.
- the support segments 7 to 10 are also axially displaced with respect to the longitudinal direction L, wherein the inclined surfaces 24, 25 of the support segments 7 to 10 slide on each other to shift the support segments 7 to 10 radially inwardly.
- the device 1 from the pipe 5 can be removed.
- a rope, a wire, a chain or the like may be attached to the device 1.
- Fig. 1 1 shows a schematic block diagram of a method for
- the method comprises a step S1 of providing the device 1, which along the longitudinal axis L thereof in the first and second pipe sections 2, 3 can be inserted, wherein the device 1 comprises the support means 6 that several
- the device 1 is placed in the first pipe section 2 and the second pipe section 3.
- the device 1 may first be placed only in the first pipe section 2 or only in the second pipe section 3.
- Displacement device 39 relative to each other axially displaced, wherein the axial displacement of the support segments 7 to 10 along the longitudinal axis L by means of the transmission device 26 of the device 1 in a radial displacement of the Pad segments 7 to 10 is implemented relative to each other, so that the
- Support device 6 on the inside rests against the first pipe section 2 and on the second pipe section 3.
- the device 1 can initially be placed only in the first pipe section 2 and the support segments 7 to 10 can be displaced radially so far outward until the support device 6 rests against the first pipe section 2.
- the second pipe section 3 can then be pushed onto the device 1.
- the support segments 7 to 10 can be further displaced radially outwards, so that the device 1 rests firmly against the inside of both pipe sections 2, 3.
- a step S4 the first pipe section 2 is welded to the second pipe section 3.
- the pipe sections 2, 3 are welded to butt.
- the connecting weld 4 may be V-shaped.
- the pipe sections 2, 3 can be welded by means of an automatic welding process.
- the device 1 is removed from the first pipe section 2 and the second pipe section 3.
- the end plates 27, 28 are displaced axially relative to one another with the aid of the displacement device 39,
- the device 1 can then be pulled out of the pipe sections 2, 3.
- the device 1 is again removable from the pipe sections 2, 3, it can be used as often as desired.
- the device 1 is constructed from a few individual parts and can thereby be produced quickly and inexpensively.
- the device 1 is after the welding of the pipe sections 2, 3 easily detachable and removable from the pipe 5.
- the device 1 is in particular without a
- the device 1 can in principle also be used for welding tube sections 2, 3 made of stainless steel.
- the support means 6 may be provided a circumferential groove for a weld root protective gas and a connection for a welding root gas supply.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15001585 | 2015-05-26 | ||
PCT/EP2016/000868 WO2016188634A1 (de) | 2015-05-26 | 2016-05-25 | Vorrichtung und verfahren zum verschweissen eines ersten rohrabschnitts mit einem zweiten rohrabschnitt |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3302870A1 true EP3302870A1 (de) | 2018-04-11 |
Family
ID=53283955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16727303.6A Withdrawn EP3302870A1 (de) | 2015-05-26 | 2016-05-25 | Vorrichtung und verfahren zum verschweissen eines ersten rohrabschnitts mit einem zweiten rohrabschnitt |
Country Status (6)
Country | Link |
---|---|
US (1) | US20180126498A1 (de) |
EP (1) | EP3302870A1 (de) |
JP (1) | JP2018519162A (de) |
KR (1) | KR20180009361A (de) |
CN (1) | CN107660169A (de) |
WO (1) | WO2016188634A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3742186A (en) | 1971-07-19 | 1973-06-26 | Lockheed Aircraft Corp | Improvement in a grappling device |
US5285947A (en) | 1992-09-14 | 1994-02-15 | Cogsdill Tool Products, Inc. | Welding fixture |
FR2801819B1 (fr) | 1999-12-03 | 2002-02-22 | Bouygues Offshore | Dispositif centralisateur et de retenue de bain de soudure en fusion utile pour le soudage des conduites comportant un ecran de protection |
EP1291120B1 (de) | 2001-09-07 | 2009-01-07 | Walter Schnorrer | Spannvorrichtung zum Ausrichten und Spannen von zwei Rohrenden |
WO2009070707A2 (en) * | 2007-11-28 | 2009-06-04 | Frank's International, Inc. | Methods and apparatus for forming tubular strings |
CN201537781U (zh) * | 2009-10-23 | 2010-08-04 | 北京星航机电设备厂 | 一种机械式涨紧装置 |
CN202824271U (zh) * | 2012-07-27 | 2013-03-27 | 新都区斑竹园镇焕越金属配件厂 | 管道弯头内整形对口器 |
GB2514593B (en) | 2013-05-30 | 2016-02-17 | Acergy France SAS | Internal line-up clamps for welding pipes |
CN204524695U (zh) * | 2015-04-24 | 2015-08-05 | 艾美特焊接自动化技术(北京)有限公司 | 一种胀紧定位内撑机构 |
-
2016
- 2016-05-25 CN CN201680030374.5A patent/CN107660169A/zh active Pending
- 2016-05-25 US US15/575,833 patent/US20180126498A1/en not_active Abandoned
- 2016-05-25 JP JP2017561271A patent/JP2018519162A/ja active Pending
- 2016-05-25 WO PCT/EP2016/000868 patent/WO2016188634A1/de active Application Filing
- 2016-05-25 EP EP16727303.6A patent/EP3302870A1/de not_active Withdrawn
- 2016-05-25 KR KR1020177037336A patent/KR20180009361A/ko unknown
Also Published As
Publication number | Publication date |
---|---|
WO2016188634A1 (de) | 2016-12-01 |
KR20180009361A (ko) | 2018-01-26 |
US20180126498A1 (en) | 2018-05-10 |
CN107660169A (zh) | 2018-02-02 |
JP2018519162A (ja) | 2018-07-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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