WO2021022808A1 - 一种装配式钢结构管廊拱形波纹钢板板墙的生产方法 - Google Patents
一种装配式钢结构管廊拱形波纹钢板板墙的生产方法 Download PDFInfo
- Publication number
- WO2021022808A1 WO2021022808A1 PCT/CN2020/077902 CN2020077902W WO2021022808A1 WO 2021022808 A1 WO2021022808 A1 WO 2021022808A1 CN 2020077902 W CN2020077902 W CN 2020077902W WO 2021022808 A1 WO2021022808 A1 WO 2021022808A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- corrugated steel
- steel plate
- arched
- corrugated
- structure pipe
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
Definitions
- the invention relates to a method for producing steel pipe gallery steel plates, in particular to a method for producing an arched corrugated steel plate wall of an assembled steel structure pipe gallery.
- the applicant has been committed to the scientific research, production and application of the fabricated underground steel structure pipe gallery.
- the upper, lower, left and right slab walls of the fabricated underground steel structure pipe gallery are all corrugated steel plates with external arches.
- the four edges of the corrugated steel plate are welded with flanges.
- the flanges include longitudinal straight flanges and circumferential arch flanges.
- the axial length of each slab wall is about 6 to 10 meters wide, and the width is about 3.5 to 5 meters.
- the arched corrugated steel plate in the slab wall can only be made of multiple arched corrugated steel plates with smaller axial dimensions in the axial direction of the pipe gallery. Arranged and welded.
- the end face of the arch angle of the smaller arched corrugated plate has been cut into a bevel, so that the flange of the vertical straight flange of the plate wall faces
- the error accumulation is formed after assembly, which causes the contact surface when welding with the longitudinal flange surface.
- the size of the welding gap varies, the welding is difficult, and the welding quality is difficult to guarantee.
- the production method of this panel wall is low in efficiency.
- the present invention discloses a method for producing an arched corrugated steel plate wall of an assembled steel structure pipe gallery.
- the production method has high production efficiency and can ensure that the bevel angle formed by the arc angle of the formed arched corrugated steel plate is consistent. , It is convenient to connect the longitudinal flange, and the arch of the arched corrugated steel plate is consistent to make the welded structure more stable.
- a production method of arched corrugated steel plate wall of fabricated steel structure pipe gallery including the following steps:
- Step 1) Form a straight single-plate corrugated steel plate; arrange multiple formed flat single-plate corrugated steel plates 1 of equal length in the same plane along the direction perpendicular to the corrugation pattern, and two adjacent corrugated steel plates The ends of the single-piece board perpendicular to the direction of the corrugated lines are aligned, and there are welding gaps between the ends;
- Step 2) Weld the ends of adjacent single-plate corrugated steel plates to form corrugated steel plate components
- Step 3 Use the corrugated steel plate arc machine to roll the corrugated steel plate assembly into an arch shape, and then correct the arched corrugated steel plate assembly on the clamping fixture and keep it in a shape consistent with the size of the drawing to correct the arched corrugated steel plate Deformation of components in all directions and dimensions;
- Step 4) Cut the two sides of the arched corrugated steel plate assembly perpendicular to the grain direction, and the side ends formed after cutting are flush.
- step 1) the welding gap between the ends of two adjacent corrugated steel sheets 1 is 0.5-3 mm.
- step 4) the side end surface is cut, the longitudinal flange and the arched corrugated steel plate assembly are closely assembled along the side end surface perpendicular to the direction of the corrugation pattern, and welding at various positions is performed.
- step 4) After the assembly and welding of the longitudinal flange and the arched corrugated steel plate assembly are completed, the arched corrugated steel plate assembly is arranged at the end of the arched corrugated steel plate assembly parallel to the corrugated steel plate to be used between the sections of the assembled steel structure pipe. Connected components.
- the wave height and wave pitch of the flat corrugated steel sheet formed in step 1) are the same.
- Figure 1 is a schematic longitudinal cross-sectional view of the arched corrugated steel plate wall of the assembled steel structure pipe gallery of the present invention
- Figure 2 is a schematic diagram of the arch angle cutting of the arched corrugated steel plate wall of the assembled steel structure pipe gallery of the present invention
- Fig. 3 is a schematic diagram of the longitudinal flange welding of the arched corrugated steel plate wall of the assembled steel structure pipe gallery of the present invention.
- the plate wall on each longitudinal side of the arched corrugated steel plate wall of the fabricated steel structure pipe gallery is an integral component, which is welded by the corrugated steel plate and the longitudinal flanges and circumferential flanges on the four sides around the corrugated steel plate.
- the grain direction of the board is perpendicular to the axis of the pipe gallery; the above-mentioned board wall is generally 7.5 meters long in the longitudinal direction and 3.5 meters long in the circumferential direction, but each corrugated board formed by the corrugating machine is a small-size part of 1.5 meters ⁇ 3.5 meters. , 1.5 meters is the longitudinal direction, so five small-sized corrugated plates should be assembled into a large corrugated steel plate with a longitudinal length of 7.5 meters x 3.5 meters.
- This embodiment discloses a method for producing an arched corrugated steel plate wall of an assembled steel structure pipe gallery, which includes the following steps:
- Step 1) Form a straight single sheet of corrugated steel plate 1.
- the formed straight single sheet of corrugated steel sheet 1 has the same wave height and pitch; the two ends perpendicular to the direction of the corrugation pattern are parallel to the single sheet of corrugated steel sheet.
- corrugations of 1 are trimmed neatly; multiple formed flat single-plate corrugated steel plates 1 of equal length are arranged horizontally in the same plane along the direction perpendicular to the corrugated pattern, and two adjacent corrugated steel single-plate plates 1 are perpendicular to The ends of the corrugated pattern are aligned, and the ends of the two adjacent corrugated steel monolithic plates 1 perpendicular to the direction of the corrugated pattern are the peak or trough positions to form a standard corrugated steel plate assembly 2 with continuous waves; between the ends There is a welding gap, and the welding gap between the ends of two adjacent corrugated steel plates is 0.5-3 mm.
- Step 2 After welding the ends of adjacent corrugated steel plates, the corrugated steel plate assembly 2 is formed;
- Step 3 Use a corrugated steel plate arc machine to roll the corrugated steel plate assembly 2 into an arch shape, and then correct and correct the arched corrugated steel plate assembly 3 in all directions and dimensions on the clamping fixture. Deformation, keep the shape consistent with the drawing size;
- Step 4 Cut the two sides perpendicular to the grain direction of the arched corrugated steel plate assembly 3, and the side ends formed after cutting are flush. After the side end surface is cut, the longitudinal profiled channel steel flange 4 is closely assembled with the side end surface perpendicular to the corrugation direction, and welding is performed at various positions. At the end of the arch-shaped corrugated steel plate assembly 3 parallel to the corrugated steel plate corrugations, members for connecting between the sections of the assembled steel structure pipe are arranged. At this point, the arched corrugated steel plate wall of the assembled steel structure pipe gallery is formed.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
一种装配式钢结构管廊拱形波纹钢板板墙的生产方法，通过将装配式钢结构管廊的波纹钢板先焊接后卷曲为拱形的方式，使得波纹钢板其整体拱度及两端端面斜度一致，便于装配以及焊接法兰。该方法可以避免在焊接法兰时由于波纹钢板端面倾斜角度不一致导致接触面的焊接缝隙大小不一和焊接困难。
Description
本发明涉及一种管廊钢板生产方法，特别是一种装配式钢结构管廊拱形波纹钢板板墙的生产方法。
申请人一直致力于装配式地下钢结构管廊的科研生产及应用，其中装配式地下钢结构管廊上、下、左、右的板墙都是外拱的波纹钢板。波纹钢板的四个边缘都焊接了法兰，法兰包括纵向直法兰及周向拱法兰。每块板墙的轴向长度约为6米至10米宽，宽度约为3.5米至5米。由于原材料的钢卷或平钢板尺寸大小的限制，以及钢结构规范的限制，板墙中的拱形波纹钢板只能是由多片管廊轴向方向尺寸较小的拱形波纹钢板沿轴向排列焊接而成，在实际生产过程中，在拼装焊接前，较小的拱形波纹板片的拱角的端面已经切割成了一个斜面，以便于板墙的纵向直法兰的法兰面对接及焊接，但由于每个较小的拱形波纹板的拱度有误差，并且其拱角的切割斜面角度也有误差，在拼装后形成误差积累，致使与纵向法兰面焊接时，接触面的焊接缝隙大小不一，焊接困难，焊接质量很难保证，另外这种板墙生产方式效率较低。
发明内容
发明目的：本发明公开了一种一种装配式钢结构管廊拱形波纹钢板板墙的生产方法,该生产方法生产效率高，能够保证形成的拱形波纹钢板拱角端面形成的斜面角度一致，便于连接纵向法兰，并且拱形波纹钢板拱度一致使得焊接结构更加稳固。
技术方案：一种装配式钢结构管廊拱形波纹钢板板墙的生产方法，包括如下步骤：
步骤1)成型出平直的波纹钢板单片板；将多块成型出的等长的平直波纹钢板单片板1沿垂直于波纹纹路方向水平排列在同一平面内，相邻两个波纹钢板单片板垂直于波纹纹路的方向的端部对齐，端部之间留有焊接缝隙；
步骤2)将相邻波纹钢板单片板端部焊接后形成波纹钢板组件；
步骤3)利用波纹钢板卷弧机，将波纹钢板组件卷制成拱形，再将拱形的波纹钢板组件在夹持工装上校正并保持为与图纸尺寸一致的形状，纠正拱形的波纹钢板组件在各个方向及尺寸的变形；
步骤4)将拱形的波纹钢板组件的两个垂直于纹路方向的侧边切割，切割后形成的侧端面平齐。
具体的，步骤1)相邻两个波纹钢板单片1端部之间焊接缝隙为0.5～3毫米。
具体的，步骤4)侧端面切割完成后，将纵向法兰与拱形的波纹钢板组件沿垂直于波纹纹路方向的侧向端面贴紧组装，并进行各个位置的焊接。
具体的，步骤4)纵向法兰与拱形的波纹钢板组件组装焊接完成后，在拱形的波纹钢板组件平行于波纹钢板波纹的端部设置用于装配式钢结构管廊节与节之间连接的构件。
具体的，步骤1)中成型出的平直的波纹钢板单片板波高和波距一致。
有益效果：本发明公开的一种装配式钢结构管廊拱形波纹钢板板墙的生产方法与现有技术相比具有如下优点：
1)能够采用生产线式生产，各生产线紧密而连续，大大提高了效率；
2)避免了单件波纹钢板零件单独卷弧造成的弧度误差给组装和拼焊造成的效率低下和焊缝质量问题；便于实现自动化焊接，提高焊接质量，便于实现各拼焊缝的同时焊接；
3)拱角的端面切割，一次性完成，避免了单件波纹钢板零件单独切割的形成的误差，使拱角与异型槽钢法兰面的间隙一致保证了焊接自动化的实现和焊接质量的控制。
图1为本发明装配式钢结构管廊拱形波纹钢板板墙的纵向截面示意图；
图2为本发明装配式钢结构管廊拱形波纹钢板板墙拱角切割示意图；
图3为本发明装配式钢结构管廊拱形波纹钢板板墙纵向法兰焊接示意图。
装配式钢结构管廊拱形波纹钢板板墙纵向的每一侧的板墙是一个整体组件，该组件是由波纹钢板和波纹钢板周围四边的纵向法兰和环向法兰焊接而成，波纹板的纹路方向是与管廊轴线垂直的；上述板墙一般是纵向长7.5米，周向长3.5米，但波纹成型机成型的每片波纹板片尺寸为1.5米×3.5米的小尺寸零件波纹板，1.5米是纵向方向，所以要把五块小尺寸波纹板片拼装成纵向长度为7.5米×3.5米的大波纹钢板。
本实施例公开了一种装配式钢结构管廊拱形波纹钢板板墙的生产方法，包括如下步骤：
步骤1)成型出平直的波纹钢板单片板1，成型出的平直的波纹钢板单片板1波高和波距一致；垂直于波纹纹路方向的两个端部平行于波纹钢板单片板1的波纹，修剪平齐；将多块成型出的等长的平直波纹钢板单片板1沿垂直于波纹纹路方向水平排列在同一平面内，相邻两个波纹钢板单片板1垂直于波纹纹路的方 向的端部对齐，相邻两个波纹钢板单片板1垂直于波纹纹路的方向的端部为波峰或波谷位置以形成波形连续的标准的波纹钢板组件2；端部之间留有焊接缝隙，相邻两个波纹钢板端部之间焊接缝隙为0.5～3毫米。
步骤2)将相邻波纹钢板端部焊接后形成波纹钢板组件2；
步骤3)利用波纹钢板卷弧机，将波纹钢板组件2卷制成拱形，再将拱形的波纹钢板组件3在夹持工装上校正并纠正拱形的波纹钢板组件3在各个方向及尺寸的变形,保持为与图纸尺寸一致的形状；
步骤4)将拱形的波纹钢板组件3的两个垂直于纹路方向的侧边切割，切割后形成的侧端面平齐。侧端面切割完成后，将纵向异型槽钢法兰4与与垂直于波纹纹路方向的侧向端面贴紧组装，并进行各个位置的焊接。在拱形的波纹钢板组件3平行于波纹钢板波纹的端部设置用于装配式钢结构管廊节与节之间连接的构件。至此,即形成装配式钢结构管廊拱形波纹钢板板墙。
Claims (5)
- 一种装配式钢结构管廊拱形波纹钢板板墙的生产方法，其特征在于：包括如下步骤：步骤1)成型出平直的波纹钢板单片板；将多块成型出的等长的平直波纹钢板单片板沿垂直于波纹纹路方向水平排列在同一平面内，相邻两个波纹钢板单片板垂直于波纹纹路的方向的端部对齐；步骤2)将所有相邻波纹钢板单片板端部焊接后形成波纹钢板组件；步骤3)利用波纹钢板卷弧机，将波纹钢板组件卷制成拱形，再将拱形的波纹钢板组件在夹持工装上校正并保持为与图纸尺寸一致的形状，纠正拱形的波纹钢板组件在各个方向及尺寸的变形；步骤4)将拱形的波纹钢板组件的两个垂直于纹路方向的侧边切割，切割后形成的侧端面平齐。
- 根据权利要求1所述的一种装配式钢结构管廊拱形波纹钢板板墙的生产方法，其特征在于：所述步骤1)相邻两个波纹钢板单片板端部之间留有焊接缝隙,所述焊接缝隙为0.5～3毫米。
- 根据权利要求1所述的一种装配式钢结构管廊拱形波纹钢板板墙的生产方法，其特征在于：所述步骤4)侧端面切割完成后，将纵向法兰与拱形的波纹钢板组件沿垂直于波纹纹路方向的侧向端面贴紧组装，并进行各个位置的焊接。
- 根据权利要求4所述的一种装配式钢结构管廊拱形波纹钢板板墙的生产方法，其特征在于：所述步骤4)纵向法兰与拱形的波纹钢板组件组装焊接完成后，在拱形的波纹钢板组件平行于波纹钢板波纹的端部设置用于装配式钢结构管廊节与节之间连接的构件。
- 根据权利要求1所述的一种装配式钢结构管廊拱形波纹钢板板墙的生产方法，其特征在于：所述步骤1)中成型出的平直的波纹钢板单片板波高和波距一致。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716115.3 | 2019-08-05 | ||
| CN201910716115.3A CN110449835A (zh) | 2019-08-05 | 2019-08-05 | 一种装配式钢结构管廊拱形波纹钢板板墙的生产方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021022808A1 true WO2021022808A1 (zh) | 2021-02-11 |
Family
ID=68484851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2020/077902 WO2021022808A1 (zh) | 2019-08-05 | 2020-03-05 | 一种装配式钢结构管廊拱形波纹钢板板墙的生产方法 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110449835A (zh) |
| WO (1) | WO2021022808A1 (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449835A (zh) * | 2019-08-05 | 2019-11-15 | 南京联众工程技术有限公司 | 一种装配式钢结构管廊拱形波纹钢板板墙的生产方法 |
| CN111571120A (zh) * | 2020-04-21 | 2020-08-25 | 南京联众工程技术有限公司 | 一种大尺寸拱形波纹钢板的加工方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1043373A (en) * | 1962-05-12 | 1966-09-21 | Hill John | Improvements in or relating to structural elements |
| CA2225729A1 (en) * | 1997-12-23 | 1999-06-23 | Armtec Construction Products, A Division Of Jenisys Engineered Products | Arch bridge for water crossing |
| CN106836278A (zh) * | 2017-01-22 | 2017-06-13 | 中交第公路勘察设计研究院有限公司 | 波纹钢综合管廊的施工方法 |
| CN108071122A (zh) * | 2017-11-09 | 2018-05-25 | 神翼航空器科技（天津）有限公司 | 装配式地下管廊及其施工方法 |
| CN108277744A (zh) * | 2018-01-19 | 2018-07-13 | 郑州市交通规划勘察设计研究院 | 拱形钢混凝土组合桥面板及其施工方法 |
| CN110449835A (zh) * | 2019-08-05 | 2019-11-15 | 南京联众工程技术有限公司 | 一种装配式钢结构管廊拱形波纹钢板板墙的生产方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5111911B2 (ja) * | 2007-03-23 | 2013-01-09 | 本田技研工業株式会社 | ヘミング加工方法及びパネルアセンブリ製造方法 |
| CN102699653B (zh) * | 2012-05-22 | 2016-04-20 | 大明重工有限公司 | 一种多厚度金属板材拼焊折弯方法 |
| CN103028914B (zh) * | 2012-12-27 | 2015-02-04 | 中国十九冶集团有限公司 | 钢箱梁曲线板制作方法 |
| CN204372385U (zh) * | 2014-12-29 | 2015-06-03 | 曹宁宁 | 一种单片卷制搭接成的钢波纹管 |
| CN105108458A (zh) * | 2015-09-08 | 2015-12-02 | 云南建工钢结构有限公司 | 一种不等厚钢管的制造方法 |
| CN106001264A (zh) * | 2016-05-31 | 2016-10-12 | 东莞昶能镭射金属科技有限公司 | 一种金属板材弯折件的制造方法、制品及专用弯折模具 |
| KR20190002255A (ko) * | 2017-06-29 | 2019-01-08 | 문홍석 | 하이브리드 장비를 활용한 타이어 휠 제조방법 |
| CN207405654U (zh) * | 2017-10-27 | 2018-05-25 | 衡水益通管业股份有限公司 | 一种便于密封的内连接式钢波纹板综合管廊 |
| CN208748952U (zh) * | 2018-04-04 | 2019-04-16 | 南京联众建设工程技术有限公司 | 波纹板连接结构 |
-
2019
- 2019-08-05 CN CN201910716115.3A patent/CN110449835A/zh not_active Withdrawn
-
2020
- 2020-03-05 WO PCT/CN2020/077902 patent/WO2021022808A1/zh active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1043373A (en) * | 1962-05-12 | 1966-09-21 | Hill John | Improvements in or relating to structural elements |
| CA2225729A1 (en) * | 1997-12-23 | 1999-06-23 | Armtec Construction Products, A Division Of Jenisys Engineered Products | Arch bridge for water crossing |
| CN106836278A (zh) * | 2017-01-22 | 2017-06-13 | 中交第公路勘察设计研究院有限公司 | 波纹钢综合管廊的施工方法 |
| CN108071122A (zh) * | 2017-11-09 | 2018-05-25 | 神翼航空器科技（天津）有限公司 | 装配式地下管廊及其施工方法 |
| CN108277744A (zh) * | 2018-01-19 | 2018-07-13 | 郑州市交通规划勘察设计研究院 | 拱形钢混凝土组合桥面板及其施工方法 |
| CN110449835A (zh) * | 2019-08-05 | 2019-11-15 | 南京联众工程技术有限公司 | 一种装配式钢结构管廊拱形波纹钢板板墙的生产方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110449835A (zh) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021022808A1 (zh) | 一种装配式钢结构管廊拱形波纹钢板板墙的生产方法 | |
| CN110104548B (zh) | 一种龙门吊主梁结构建造方法 | |
| CN105414790B (zh) | 薄底板钢结构件焊接工艺 | |
| CN113714748A (zh) | 一种大型风洞收缩段制造方法 | |
| CN104576015B (zh) | 铝制变压器油箱的制作方法 | |
| KR101722931B1 (ko) | 사각타입 신축이음관의 제조방법 | |
| EP2161063A1 (en) | Method for fabricating divided wall columns | |
| CN111571072A (zh) | 一种箱型细长梁的焊接精度控制方法 | |
| CN109202354A (zh) | 一种保证热室壳体平面度的焊接夹具及焊接方法 | |
| CN115180092A (zh) | 船体薄板分段连接方法和船体 | |
| CN212359005U (zh) | 一种钢箱拱节段 | |
| CN114769923A (zh) | 一种带筋板悬挑结构的焊接方法 | |
| CN111618399B (zh) | 箱型钢柱人孔防焊接收缩变形方法 | |
| CN111408862A (zh) | 一种装载机铲斗扁钢焊接方法 | |
| CN110202668B (zh) | 弧形预制看台板模具及其制造方法 | |
| CN112853826A (zh) | 一种跨座式单轨钢-混结合轨道梁箱型主梁组装方法 | |
| KR100570704B1 (ko) | 오발덕트 제조장치 | |
| CN210705255U (zh) | 弧形预制看台板模具 | |
| CN209006956U (zh) | 一种保证热室壳体平面度的焊接夹具 | |
| CN109184196B (zh) | 一种斜形拱面结构混凝土浇筑的支模结构和方法 | |
| US2728976A (en) | Method of making flanged tube | |
| SU1055615A1 (ru) | Способ изготовлени сварных ребристых панелей | |
| CN112360061A (zh) | 一种钢结构箱型柱梁及其制造方法 | |
| JP4990317B2 (ja) | 鉄骨構造物 | |
| JPH0220330B2 (zh) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20851014 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 20851014 Country of ref document: EP Kind code of ref document: A1 |