WO2019197664A1 - SCHMIERRING FÜR EINEN MECHANISCHEN EXPANDER ZUM KALIBRIEREN VON GROßROHREN - Google Patents
SCHMIERRING FÜR EINEN MECHANISCHEN EXPANDER ZUM KALIBRIEREN VON GROßROHREN Download PDFInfo
- Publication number
- WO2019197664A1 WO2019197664A1 PCT/EP2019/059548 EP2019059548W WO2019197664A1 WO 2019197664 A1 WO2019197664 A1 WO 2019197664A1 EP 2019059548 W EP2019059548 W EP 2019059548W WO 2019197664 A1 WO2019197664 A1 WO 2019197664A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- lubricating
- steel
- lubrication
- large pipes
- Prior art date
Links
- 238000005461 lubrication Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 28
- 239000000654 additive Substances 0.000 claims abstract description 15
- 230000000996 additive effect Effects 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 230000001050 lubricating effect Effects 0.000 claims description 32
- 239000000314 lubricant Substances 0.000 claims description 18
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
-
- 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
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/06—Rolling hollow basic material, e.g. Assel mills
- B21B19/10—Finishing, e.g. smoothing, sizing, reeling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
- B21D41/026—Enlarging by means of mandrels
- B21D41/028—Enlarging by means of mandrels expandable mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the invention relates to a lubricating ring according to the preamble of claim 1.
- the invention also relates to a method for producing a lubricating ring having the features of claim 6.
- the additively manufactured part consists of a high-strength steel.
- the large pipes have a diameter of 14 inches or less.
- the additively manufactured part has circumferential common rails for lubricant guidance.
- the additively manufactured part is designed to integrate the function of two-wire distributors.
- the invention also relates to a method for producing a lubricating ring according to the invention, characterized by the steps:
- the field of application of the invention can be used both as a retrofit solution in new plants and in existing plants. Keywords to the invention are: pipe welding systems, SAW pipes, mechanical expander, expander tool, calibration of large pipes
- the purpose of the invention is the simplified and reproducible production of expander tools for calibrating large pipes with diameters of 14 inches and smaller.
- Disadvantages of prior art solutions Especially with expander tools for small pipe diameters (e.g., 14 inches and smaller), conventional manufacturing has its limitations. The reason for this is the small space in the lubrication ring, which makes it difficult to position and manufacture the fluid bores. Because to redirect a fluid by 90 °, two holes, one in the vertical direction and the other in the horizontal direction are required. Thus, the production of lubricating rings for 14-inch pipes is very complex and risky, since in some areas only a few millimeters remain until a collision with another hydraulic bore. If so, the part becomes scrap.
- the invention is a hybrid component that combines conventional and additive manufacturing.
- a ring of a low-strength, but inexpensive structural steel is used on the complex part of a high-strength material by the additive manufacturing, or 3D printing called, generated in layers.
- 3D printing 3D printing
- a mild steel with low strength properties is sufficient because the critical cross section is not in this area of the component.
- the through-holes for the subsequent assembly and the Flydraulik ein are conventionally manufactured in the steel ring.
- For the layered structure of the ring is then then aligned in the printer assembly space and mounted and the metal powder layers are applied to the blank and melted using a laser.
- the SMS group design is also characterized by the two circumferential common rails. These supply the individual channels to the two-way distributors with expander oil.
- FIG. 1 shows a sectional view through a prior art expander with inventive lubricating ring.
- Fig. 2 shows a three-dimensional view of a lubrication ring according to the prior art.
- FIG. 3 shows the lubricating ring of Fig. 2 in a partially cutaway view with the indicated steps for the production of the holes.
- FIG. 4 shows a three-dimensional view of the inventive lubricating ring from FIG. 1 and the lubricating ring as a hybrid component.
- the expander 1 shown in Fig. 1 comprises a wedge 2 which is displaceable over a tie rod 3 relative to oppositely shaped segments 4, so that the segments 4 are pressed radially outward to deform a pipe (not shown) from the inside or to calibrate.
- the wedge 2 has lubricant channels (not shown), which transport the lubricant into the gap between the wedge 2 and segments 4.
- the wedge 2 is connected by a nut 5 with the pull rod. Between the nut 5, a disk 7 and then a lubricating ring 6 are arranged as a stack in the pulling direction.
- the lubricant is from a supply pin 8 via
- Fig. 2 and Fig. 3 show a previously known, manufactured in a conventional manner lubricating ring.
- Fig. 3 illustrates how previously fluid bores or lubricant channels were introduced through holes in the lubricating ring 6.
- the previously known lubricating ring 6 'according to FIG. 2 can be used as an alternative to the inventive lubricating ring 6 according to FIG. 4 in the expander according to FIG. 1 be provided, or the inventive lubricating ring 6, the conventional lubricating ring 6 ', optionally with additional adjustment of the disc 7, replace.
- the 4 comprises a conventionally manufactured part 12 in the form of a ring, the shape of which in this area largely corresponds to the corresponding part of the lubricating ring 6 'according to FIG. 2.
- a manufactured by additive manufacturing part 13 connects in the axial direction of the conventionally manufactured part 12 at.
- the additively manufactured part 13 faces the disk 7 and abuts against it.
- the lubricating ring 6 according to FIG. 4 is thus designed as a hybrid component.
- the conventionally manufactured part 12 is made of structural steel.
- the additive manufactured part 13 is made of high strength steel.
- two circumferential common rail lines 14 are provided for distributing the lubricant, inter alia to the two-line distributors 11.
- Additive Manufacturing Inventory Announcement Lubricating Ring as a Hybrid Component
- they are calibrated with respect to their roundness and dimensional stability after internal and external welding using the mechanical expander 1.
- Each expansion process involves high surface pressure and thus friction between the surfaces of the segments and the wedge. The friction is reduced by a defined lubrication.
- the lubrication ring acts as a lubricant distributor and forwarder.
- the SMS group design is characterized by the two circulating common rails 14. These supply the individual channels to the two-line distributors 11, in which then a precisely defined amount of lubricant is ejected.
- the lubricating oil supply for the two Common Rails 14 takes place only via two channels 10, which has a great advantage on the number of necessary seals respectively the number of possible leakage points. Because this is reduced by 17%. This also eliminates the need for special seals.
- the design of the AM area is defined so that the effort for the subsequent post-processing is minimized. For this purpose, all angles in the printing direction are chosen so that the need for support structures omitted.
- the rework for the seat of the two-line manifold 11 is also kept as low as possible.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Powder Metallurgy (AREA)
- Metal Extraction Processes (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112020020862-0A BR112020020862A2 (pt) | 2018-04-12 | 2019-04-12 | Anel lubrificante para um expansor mecânico para calibração de grandes tubos |
US17/046,335 US11396036B2 (en) | 2018-04-12 | 2019-04-12 | Lubrication ring for a mechanical expander for sizing large pipes |
RU2020132063A RU2760901C1 (ru) | 2018-04-12 | 2019-04-12 | Смазочное кольцо для механического экспандера для калибровки труб большого диаметра |
EP19718149.8A EP3774103A1 (de) | 2018-04-12 | 2019-04-12 | SCHMIERRING FÜR EINEN MECHANISCHEN EXPANDER ZUM KALIBRIEREN VON GROßROHREN |
JP2020555483A JP7041758B2 (ja) | 2018-04-12 | 2019-04-12 | 大型パイプを較正するための機械式エキスパンダ用の潤滑リング |
CN201980025122.7A CN112041100B (zh) | 2018-04-12 | 2019-04-12 | 用于校准大口径管的机械式扩径机的润滑环 |
SA520420344A SA520420344B1 (ar) | 2018-04-12 | 2020-10-12 | حلقة تشحيم لوسيلة تمديد ميكانيكية لتهيئة حجم الأنابيب الكبيرة |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018205600 | 2018-04-12 | ||
DE102018205600.5 | 2018-04-12 | ||
DE102019204376.3A DE102019204376A1 (de) | 2018-04-12 | 2019-03-28 | Schmierring für einen mechanischen Expander zum Kalibrieren von Großrohren |
DE102019204376.3 | 2019-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019197664A1 true WO2019197664A1 (de) | 2019-10-17 |
Family
ID=68053012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/059548 WO2019197664A1 (de) | 2018-04-12 | 2019-04-12 | SCHMIERRING FÜR EINEN MECHANISCHEN EXPANDER ZUM KALIBRIEREN VON GROßROHREN |
Country Status (9)
Country | Link |
---|---|
US (1) | US11396036B2 (de) |
EP (1) | EP3774103A1 (de) |
JP (1) | JP7041758B2 (de) |
CN (1) | CN112041100B (de) |
BR (1) | BR112020020862A2 (de) |
DE (1) | DE102019204376A1 (de) |
RU (1) | RU2760901C1 (de) |
SA (1) | SA520420344B1 (de) |
WO (1) | WO2019197664A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022084113A1 (de) * | 2020-10-20 | 2022-04-28 | Sms Group Gmbh | Einrichtung zur schmierung eines formwerkzeugs sowie verfahren zur schmierung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115815376A (zh) * | 2022-12-09 | 2023-03-21 | 江苏中通管业有限公司 | 一种校圆装置及钢管生产工艺 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102011106605B3 (de) * | 2011-06-16 | 2012-09-20 | Sms Meer Gmbh | Mechanischer Zugexpander |
WO2015032228A1 (zh) * | 2013-09-05 | 2015-03-12 | 无锡双友石化机械有限公司 | 扩径头支撑环油路系统 |
WO2016149774A1 (en) * | 2015-03-26 | 2016-09-29 | Atlas Copco Airpower, Naamloze Vennootschap | Method for manufacturing a centrifugal metal impeller and a centrifugal impeller obtained with such a method |
US20170260997A1 (en) * | 2014-07-04 | 2017-09-14 | Nuovo Pignon SrI | Manufacturing of a turbomachine impeller by assembling a plurality of tubular components |
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SU25359A1 (ru) * | 1931-05-21 | 1932-02-29 | Н.И. Фокин | Смазочное кольцо |
US3397564A (en) * | 1965-09-13 | 1968-08-20 | Schroeder Otto | Expanding pipes |
US3572081A (en) * | 1969-04-21 | 1971-03-23 | United States Steel Corp | Apparatus for mechanically expanding large diameter pipe |
US4422317A (en) * | 1982-01-25 | 1983-12-27 | Cities Service Company | Apparatus and process for selectively expanding a tube |
DE3729169A1 (de) * | 1987-09-01 | 1989-03-09 | Emitec Emissionstechnologie | Sonde zum hydraulischen aufweiten mit zentriereinrichtung |
DE3939356A1 (de) * | 1989-11-24 | 1991-05-29 | Mannesmann Ag | Mechanischer rohrexpander |
GB2356651B (en) * | 1998-12-07 | 2004-02-25 | Shell Int Research | Lubrication and self-cleaning system for expansion mandrel |
GB2427212B (en) * | 2003-09-05 | 2008-04-23 | Enventure Global Technology | Expandable tubular |
CN201067779Y (zh) | 2007-05-23 | 2008-06-04 | 天水锻压机床有限公司 | 悬臂拉杆与扩径头的润滑系统 |
CN201046483Y (zh) | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | 钢管扩径头 |
CN203470697U (zh) * | 2013-09-05 | 2014-03-12 | 无锡双友石化机械有限公司 | 扩径头支撑环油路系统 |
GB2521390A (en) | 2013-12-18 | 2015-06-24 | Skf Ab | Rolling element and bearing |
GB2521600A (en) * | 2013-12-18 | 2015-07-01 | Skf Ab | A building block for a mechanical construction |
CN203917670U (zh) | 2014-06-25 | 2014-11-05 | 瑞士豪斯乐股份有限公司 | 钢管全长管身扩径机 |
US20160010469A1 (en) * | 2014-07-11 | 2016-01-14 | Hamilton Sundstrand Corporation | Hybrid manufacturing for rotors |
DE102014216313A1 (de) * | 2014-08-18 | 2016-02-18 | Schaeffler Technologies AG & Co. KG | Lagerring und Verfahren zur Herstellung eines Lagerrings |
US10702902B2 (en) * | 2014-12-26 | 2020-07-07 | Nippon Steel Corporation | Method of manufacturing flaring-processed metal pipe |
EP3268146B1 (de) * | 2015-03-13 | 2020-09-09 | Howmet Aerospace Inc. | Verfahren zur herstellung von schmiedeprodukten mit internen durchlässe |
US10946473B2 (en) * | 2015-05-14 | 2021-03-16 | General Electric Company | Additive manufacturing on 3-D components |
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US20180221958A1 (en) * | 2017-02-07 | 2018-08-09 | General Electric Company | Parts and methods for producing parts using hybrid additive manufacturing techniques |
CN206527243U (zh) * | 2017-02-22 | 2017-09-29 | 慈溪欧新生物科技有限公司 | 一种新型钢管扩径头 |
CN107190290B (zh) * | 2017-06-12 | 2018-11-09 | 中国石油大学(华东) | 一种上游泵送机械密封环的增材制造装置 |
-
2019
- 2019-03-28 DE DE102019204376.3A patent/DE102019204376A1/de active Pending
- 2019-04-12 WO PCT/EP2019/059548 patent/WO2019197664A1/de active Application Filing
- 2019-04-12 US US17/046,335 patent/US11396036B2/en active Active
- 2019-04-12 BR BR112020020862-0A patent/BR112020020862A2/pt not_active Application Discontinuation
- 2019-04-12 EP EP19718149.8A patent/EP3774103A1/de not_active Withdrawn
- 2019-04-12 CN CN201980025122.7A patent/CN112041100B/zh active Active
- 2019-04-12 RU RU2020132063A patent/RU2760901C1/ru active
- 2019-04-12 JP JP2020555483A patent/JP7041758B2/ja active Active
-
2020
- 2020-10-12 SA SA520420344A patent/SA520420344B1/ar unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011106605B3 (de) * | 2011-06-16 | 2012-09-20 | Sms Meer Gmbh | Mechanischer Zugexpander |
WO2015032228A1 (zh) * | 2013-09-05 | 2015-03-12 | 无锡双友石化机械有限公司 | 扩径头支撑环油路系统 |
US20170260997A1 (en) * | 2014-07-04 | 2017-09-14 | Nuovo Pignon SrI | Manufacturing of a turbomachine impeller by assembling a plurality of tubular components |
WO2016149774A1 (en) * | 2015-03-26 | 2016-09-29 | Atlas Copco Airpower, Naamloze Vennootschap | Method for manufacturing a centrifugal metal impeller and a centrifugal impeller obtained with such a method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022084113A1 (de) * | 2020-10-20 | 2022-04-28 | Sms Group Gmbh | Einrichtung zur schmierung eines formwerkzeugs sowie verfahren zur schmierung |
Also Published As
Publication number | Publication date |
---|---|
CN112041100A (zh) | 2020-12-04 |
RU2760901C1 (ru) | 2021-12-01 |
DE102019204376A1 (de) | 2019-10-17 |
CN112041100B (zh) | 2023-06-20 |
EP3774103A1 (de) | 2021-02-17 |
SA520420344B1 (ar) | 2022-09-21 |
JP2021519865A (ja) | 2021-08-12 |
BR112020020862A2 (pt) | 2021-01-19 |
JP7041758B2 (ja) | 2022-03-24 |
US11396036B2 (en) | 2022-07-26 |
US20210039154A1 (en) | 2021-02-11 |
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