US20100233010A1 - method of producing various massive blanks of encapsulated pipe connections by virtue of powder moulding - Google Patents
method of producing various massive blanks of encapsulated pipe connections by virtue of powder moulding Download PDFInfo
- Publication number
- US20100233010A1 US20100233010A1 US12/602,988 US60298808A US2010233010A1 US 20100233010 A1 US20100233010 A1 US 20100233010A1 US 60298808 A US60298808 A US 60298808A US 2010233010 A1 US2010233010 A1 US 2010233010A1
- Authority
- US
- United States
- Prior art keywords
- mould
- pipe
- pipes
- plates
- network
- 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.)
- Abandoned
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Classifications
-
- 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
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Definitions
- the invention relates to a method of producing various massive blanks of encapsulated pipe connections by virtue of powder moulding, as stated in the introduction to the accompanying claim 1 .
- the objective of the invention is to bring about a competitive product such as:
- the present application relates to a method of producing various massive blanks of encapsulated pipe connections by virtue of powder moulding, the method being characterised by the features set forth in the claims.
- FIGS. 1A-1D shows part of the arrangement partly in section and viewed from the side, from above and in 3D, forming manifold 1 and base plate 2 , with details of piping 4 and sleeves 5 in the transition between base plate 2 and manifold 1 .
- the arrangement is shown before an enclosing mould is filled with metal powder, which undergoes a HIP (Hot Isostatic Pressing) process.
- the internal piping 4 will later be channels in the blank.
- the manifold 1 and the base plate 2 are made as a continuous part, and the channels shall go through these parts.
- the base plate becomes the lower part of a completed control module and is mounted on an appurtenant plate including electric and hydraulic connectors, which are connected to hydraulic and electric distribution on a subsea installation.
- control valves 3 being left within a subsea control module in its final employment is not shown full height in the drawing.
- ten control valves 3 may be positioned side by side upwards along two of the manifold's 1 sides. Future positioning of three hydraulic control valves 3 on the manifold 1 is included to illustrate this.
- On top of the mould a metal bellows, not shown, is positioned for control of the material shrinkage. This and the pipe ends extending from the blank after the finished HIP process are removed from the blank in connection with machining of the manifold 1 and the base plate 2 .
- FIGS. 1B , 1 C and 1 D show through piping 5 placed in a circle in the base plate 2 , where the electrical connectors will be in the finished machined blank. Hydraulic outlets are placed in the base plate in a circle inside the electric connectors, and these are connected with a series of positions for future valve ports on two sides of the manifold 1 via internal piping 4 establishing the conduits for the hydraulic liquid. To illustrate how the control valves 3 shall be placed on the finished machined blank, these are also shown on three of the FIGS. 1B , 1 C and 1 D.
- FIG. 1A shows side view of the lower part of the manifold 1 mould and the base plate 2 mould.
- the internal piping 4 in the mould forming the manifold 1 is shown, and pipe connections extend from the plates forming the outside mould of the base plate 1 and manifold 2 .
- the pipes are open ended, while the openings between the pipe throughputs in the plates and the pipes are seal welded.
- FIG. 1B is rotated 90° relative to 1 A, and shows the outside of the base plate mould. Uppermost on the part of the manifold 1 shown, two groups of holes can be seen where the pipes end up. These holes become hydraulic ports for the control valves 3 .
- the control valves 3 are included in the drawing to show how these will be mounted on the finished machined blank.
- FIG. 1C shows a top view of manifold 1 and base plate 2 , with a section through the top of the base plate 2 with two of the larger through pipes 5 for electrical couplings placed vertically in an outer circle on the base plate 2 . These may also be seen on the 3D FIG. 1D .
- the drawing also shows routing of pipes from various positions on the manifold 1 , vertically down through the centre of the manifold 1 and a distribution of these out to the hydraulic outlets in the base plate 2 being placed in a circle inside the electrical throughputs.
- FIG. 1D shows a partially sectioned 3D drawing of the manifold 1 and the base plate 2 .
- the details are explained for FIGS. 1B and 1C .
- the figure gives a better illustration of how the pipes are bent to give optimal flow conditions in the future channels.
- Uppermost on the manifold plate and the base plate 2 are seen the through pipes 5 and the pipes 4 which are welded to the plates. Future positioning of control valves 3 after machining are also shown.
- the object of the invention is to establish in advance conduits by means of both curved and straight pipe connections for distribution of hydraulic liquid between couplings in the base plate 2 and ports for control valves 3 .
- Straight through pipes 5 also pass through the base plate 2 .
- These conduits are later machined for mounting of electrical connectors.
- the pipe connections are encased in a mould being filled with powder forming an encasing blank when powder moulding, such that the pipes form integrated flow channels for fluids such as hydraulic liquid in a machineable blank, or form starting points for further machining of throughputs for electrical connectors.
- the encasing blank is produced by means of prior art, Hot Isostatic Pressing—HIP, from metal powder materials.
- the blank is produced by filling a mould with powder being placed in a container and heated under vacuum conditions to remove oxygen and moisture from the powder.
- the container is sealed and the HIP process is carried out at high inert gas pressure and high temperature, 1000° C. Internal voids are filled and a homogenous, compact material is obtained having higher strength than comparable forged material.
- a mould is welded together from steel plates with for example laser cut holes to place the pipes through, and the mould represents the finished blank external sides.
- the mould is open to make access, while the pipe network 4 to the control valves is made.
- the mould top and side plates without throughputs are put in place and welding seals the mould.
- Pipe ends will then extend from the holes in the mould. Welding also seals the openings between these holes in the plates and the pipe ends, while the pipes themselves remain open.
- On top of the mould is welded a flexible steel bellows serving as an external riser.
- the mould is filled with powder and the steel bellows is stretched out and topped up with powder, as it shall take up and control the volumetric shrinkage during the HIP process, so that the blank itself is not affected.
- the pipes 4 are kept in place during the HIP process using external plates of a ceramic material with the same hole pattern as the plates in the mould.
- the external plates are entered onto the pipe connections and interlocked in the correct position.
- the external plates are removed and reused in the next process.
Abstract
The invention concerns a method of producing various massive blanks of encapsulated pipe connections by pressure moulding metal powder material, such as an encapsulated manifold (1) on a base plate (2). In an open mould of steel plates are installed a planned network of both curved and straight pipes (4) both for fluids, via a series of control valves (3) to a control module for hydraulic couplings, and for through pipes (5) for couplings for hydraulic and electrical distribution. From holes in the mould walls pipe ends are extending, which are sealed to the holes in the mould plates. External plates entered on to pipe connectors and locked before the HIP process hold the geometry of the piping network. When the network of pipe and cable connections is established, the top plate is sealed to the mould. A flexible steel bellows is fastened to the top plate, and is used to fill the mould with casting powder and for replenishing to eliminate volumetric shrinkage in the mould during the HIP process, whereafter the mould is removed, and the cast blank is machined before external pipe network and cable connections are connected.
Description
- The invention relates to a method of producing various massive blanks of encapsulated pipe connections by virtue of powder moulding, as stated in the introduction to the accompanying
claim 1. - In production of units for among other things distribution of hydraulic liquid in control valve manifold and base plate for control modules, also for under water use, there is as of today no alternative to so-called long hole drilling.
- Problems/drawbacks with long hole drilling are:
-
- High production cost.
- Demanding machining with risk of rejects.
- Poorer flow conditions for the hydraulic liquid through straight channels.
- Pockets, where dirt can gather.
- Today's design causes manifold and base plate to be produced separately, giving an interface between manifold and plate with appurtenant seals for the hydraulic runs.
- There are limitations in the design of the equipment tied to geometry and positioning of components.
- Long hole drilling of manifolds and base plates has been utilised all the time since production of subsea control modules started. Hughes Aircraft had, in the 1980′s, a special technique of laminating base plates with channels on their subsea control modules. The company went off the market at the end of the 1980′s, and nobody carries out such work today.
- The objective of the invention is to bring about a competitive product such as:
-
- Reduced production cost.
- Simplified machining allowing more participants with shorter delivery times.
- Reduced production time.
- Improved flow conditions for hydraulic liquid through curved channels.
- No pockets where dirt can gather.
- Manifold and base plate are integrated thereby avoiding interface thereinbetween, and in addition reduction of number of potential leak points.
- Larger freedom in design of equipment geometry and positioning of components.
- Volume and weight reduction.
- Simplify offering of manifolds having many functions, where reserve functions can be blinded.
- The present application relates to a method of producing various massive blanks of encapsulated pipe connections by virtue of powder moulding, the method being characterised by the features set forth in the claims.
-
FIGS. 1A-1D shows part of the arrangement partly in section and viewed from the side, from above and in 3D, formingmanifold 1 andbase plate 2, with details ofpiping 4 andsleeves 5 in the transition betweenbase plate 2 andmanifold 1. The arrangement is shown before an enclosing mould is filled with metal powder, which undergoes a HIP (Hot Isostatic Pressing) process. Theinternal piping 4 will later be channels in the blank. Themanifold 1 and thebase plate 2 are made as a continuous part, and the channels shall go through these parts. - With prior art the manifold and the base plate are separate parts being put together. The base plate becomes the lower part of a completed control module and is mounted on an appurtenant plate including electric and hydraulic connectors, which are connected to hydraulic and electric distribution on a subsea installation.
- The
manifold portion 1 of thecontrol valves 3 being left within a subsea control module in its final employment is not shown full height in the drawing. Typically tencontrol valves 3 may be positioned side by side upwards along two of the manifold's 1 sides. Future positioning of threehydraulic control valves 3 on themanifold 1 is included to illustrate this. On top of the mould a metal bellows, not shown, is positioned for control of the material shrinkage. This and the pipe ends extending from the blank after the finished HIP process are removed from the blank in connection with machining of themanifold 1 and thebase plate 2. - The drawings show through
piping 5 placed in a circle in thebase plate 2, where the electrical connectors will be in the finished machined blank. Hydraulic outlets are placed in the base plate in a circle inside the electric connectors, and these are connected with a series of positions for future valve ports on two sides of themanifold 1 viainternal piping 4 establishing the conduits for the hydraulic liquid. To illustrate how thecontrol valves 3 shall be placed on the finished machined blank, these are also shown on three of theFIGS. 1B , 1C and 1D. -
FIG. 1A shows side view of the lower part of themanifold 1 mould and thebase plate 2 mould. Theinternal piping 4 in the mould forming themanifold 1 is shown, and pipe connections extend from the plates forming the outside mould of thebase plate 1 andmanifold 2. The pipes are open ended, while the openings between the pipe throughputs in the plates and the pipes are seal welded. -
FIG. 1B is rotated 90° relative to 1A, and shows the outside of the base plate mould. Uppermost on the part of themanifold 1 shown, two groups of holes can be seen where the pipes end up. These holes become hydraulic ports for thecontrol valves 3. Thecontrol valves 3 are included in the drawing to show how these will be mounted on the finished machined blank. -
FIG. 1C shows a top view ofmanifold 1 andbase plate 2, with a section through the top of thebase plate 2 with two of the larger throughpipes 5 for electrical couplings placed vertically in an outer circle on thebase plate 2. These may also be seen on the 3DFIG. 1D . The drawing also shows routing of pipes from various positions on themanifold 1, vertically down through the centre of themanifold 1 and a distribution of these out to the hydraulic outlets in thebase plate 2 being placed in a circle inside the electrical throughputs. -
FIG. 1D shows a partially sectioned 3D drawing of themanifold 1 and thebase plate 2. The details are explained forFIGS. 1B and 1C . The figure gives a better illustration of how the pipes are bent to give optimal flow conditions in the future channels. Uppermost on the manifold plate and thebase plate 2 are seen the throughpipes 5 and thepipes 4 which are welded to the plates. Future positioning ofcontrol valves 3 after machining are also shown. - The object of the invention is to establish in advance conduits by means of both curved and straight pipe connections for distribution of hydraulic liquid between couplings in the
base plate 2 and ports forcontrol valves 3. Straight throughpipes 5 also pass through thebase plate 2. These conduits are later machined for mounting of electrical connectors. The pipe connections are encased in a mould being filled with powder forming an encasing blank when powder moulding, such that the pipes form integrated flow channels for fluids such as hydraulic liquid in a machineable blank, or form starting points for further machining of throughputs for electrical connectors. - The encasing blank is produced by means of prior art, Hot Isostatic Pressing—HIP, from metal powder materials. The blank is produced by filling a mould with powder being placed in a container and heated under vacuum conditions to remove oxygen and moisture from the powder.
- The container is sealed and the HIP process is carried out at high inert gas pressure and high temperature, 1000° C. Internal voids are filled and a homogenous, compact material is obtained having higher strength than comparable forged material.
- A mould is welded together from steel plates with for example laser cut holes to place the pipes through, and the mould represents the finished blank external sides. The mould is open to make access, while the
pipe network 4 to the control valves is made. When the pipes are installed, the mould top and side plates without throughputs are put in place and welding seals the mould. Pipe ends will then extend from the holes in the mould. Welding also seals the openings between these holes in the plates and the pipe ends, while the pipes themselves remain open. On top of the mould is welded a flexible steel bellows serving as an external riser. - The mould is filled with powder and the steel bellows is stretched out and topped up with powder, as it shall take up and control the volumetric shrinkage during the HIP process, so that the blank itself is not affected.
- To maintain the geometry between the
pipes 4 forming interface towards the valves on two of the finishedmachined manifold 1 sides, thepipes 4 are kept in place during the HIP process using external plates of a ceramic material with the same hole pattern as the plates in the mould. The external plates are entered onto the pipe connections and interlocked in the correct position. Following the HIP process, the external plates are removed and reused in the next process.
Claims (1)
1. A method of producing various massive blanks of encapsulated pipe connections by Hot Isostatic Pressing—HIP of metallic powder material, to a capsulated manifold on a base plate, characterised in that
in an open mould of steel plates are installed a planned network of both curved and straight pipes (4) both for fluids, such as hydraulic liquid, via a series of control valves (3) to a control module for hydraulic couplings, and for through pipes for electrical couplings, being connected t hydraulic and electrical distribution,
from holes in the mould walls ends of pipes and through pipes extend, the ends being sealed to the holes in the mould plates,
to keep the geometry between the pipes these are held in position by means of external plates entered on to the pipe ends and locked before the HIP process,
when the planned network of pipe and cable connections is established, the top plate is sealed to the mould, and
to the top plate is fastened a flexible steel bellows used to fill and to replenish the mould with casting powder to eliminate volumetric shrinkage in the mould during the HIP process, whereafter the mould is removed and the cast blank is machined before connecting external pipe network and cable connections.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20072894 | 2007-06-06 | ||
NO20072894A NO328472B1 (en) | 2007-06-06 | 2007-06-06 | Process for preparing various solid blanks with encapsulated rudder joints in powder stuffing |
PCT/NO2008/000200 WO2008150177A1 (en) | 2007-06-06 | 2008-06-03 | A method of producing various massive blanks of encapsulated pipe connections by virtue of powder moulding |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100233010A1 true US20100233010A1 (en) | 2010-09-16 |
Family
ID=40093888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/602,988 Abandoned US20100233010A1 (en) | 2007-06-06 | 2008-06-03 | method of producing various massive blanks of encapsulated pipe connections by virtue of powder moulding |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100233010A1 (en) |
BR (1) | BRPI0811409B1 (en) |
GB (1) | GB2461007B (en) |
NO (1) | NO328472B1 (en) |
WO (1) | WO2008150177A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3003690B1 (en) | 2013-06-12 | 2019-10-09 | Domin Fluid Power Limited | Method for producing servo valve manifolds and manifold with curvilinear flow gallery of single piece construction |
US10537655B2 (en) | 2013-10-22 | 2020-01-21 | Compacta Ab | Device for providing a volume of sterile air |
NO20201377A1 (en) * | 2020-12-15 | 2022-06-16 | Vetco Gray Scandinavia As | Oil and gas industry gooseneck manufactured by Hot Isostatic Pressing and a flexible pipeline assembly with an oil and gas industry gooseneck |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR102016010696B1 (en) | 2016-05-11 | 2022-07-05 | Fmc Technologies Do Brasil Ltda | INTEGRATED FUNCTION BLOCK FOR USE IN SUBMARINE SYSTEMS |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4832106A (en) * | 1981-07-25 | 1989-05-23 | Hoesch Werke Aktiengesellschaft | Production of castings containing steel tubes |
US5111872A (en) * | 1990-02-20 | 1992-05-12 | Saturn Corporation | Transmission casing cover with tubular mechanically crimped conduit cast in situ |
US20030091455A1 (en) * | 2001-11-15 | 2003-05-15 | Mathson Industries | Exhaust manifold and method of making the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5573455A (en) * | 1978-11-28 | 1980-06-03 | Keiichiro Miyazaki | Pipe body insert casting method weld-combining straight pipe and bend |
DE3243377A1 (en) * | 1982-11-24 | 1984-08-23 | GMB Giesserei & Maschinenbau Bodan AG, Romanshorn | CASTING PIECE WITH MOLDED CHANNEL |
JP3001144B2 (en) * | 1994-02-25 | 2000-01-24 | 宇部興産株式会社 | Manufacturing method of molding die having heating / cooling holes and molding die |
EP1657010A1 (en) * | 2004-11-11 | 2006-05-17 | Sintec HTM AG | Method for producing a tubular metal body with an integrated heat-exchanging device in its wall |
-
2007
- 2007-06-06 NO NO20072894A patent/NO328472B1/en not_active IP Right Cessation
-
2008
- 2008-06-03 BR BRPI0811409A patent/BRPI0811409B1/en not_active IP Right Cessation
- 2008-06-03 WO PCT/NO2008/000200 patent/WO2008150177A1/en active Application Filing
- 2008-06-03 US US12/602,988 patent/US20100233010A1/en not_active Abandoned
- 2008-06-03 GB GB0919658.5A patent/GB2461007B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4832106A (en) * | 1981-07-25 | 1989-05-23 | Hoesch Werke Aktiengesellschaft | Production of castings containing steel tubes |
US5111872A (en) * | 1990-02-20 | 1992-05-12 | Saturn Corporation | Transmission casing cover with tubular mechanically crimped conduit cast in situ |
US20030091455A1 (en) * | 2001-11-15 | 2003-05-15 | Mathson Industries | Exhaust manifold and method of making the same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3003690B1 (en) | 2013-06-12 | 2019-10-09 | Domin Fluid Power Limited | Method for producing servo valve manifolds and manifold with curvilinear flow gallery of single piece construction |
US10537655B2 (en) | 2013-10-22 | 2020-01-21 | Compacta Ab | Device for providing a volume of sterile air |
NO20201377A1 (en) * | 2020-12-15 | 2022-06-16 | Vetco Gray Scandinavia As | Oil and gas industry gooseneck manufactured by Hot Isostatic Pressing and a flexible pipeline assembly with an oil and gas industry gooseneck |
NO346951B1 (en) * | 2020-12-15 | 2023-03-13 | Vetco Gray Scandinavia As | Oil and gas industry gooseneck manufactured by Hot Isostatic Pressing and a flexible pipeline assembly with an oil and gas industry gooseneck |
Also Published As
Publication number | Publication date |
---|---|
GB2461007A (en) | 2009-12-23 |
GB2461007B (en) | 2013-01-23 |
BRPI0811409B1 (en) | 2017-02-07 |
WO2008150177A1 (en) | 2008-12-11 |
NO328472B1 (en) | 2010-03-01 |
BRPI0811409A2 (en) | 2014-11-04 |
GB0919658D0 (en) | 2009-12-23 |
NO20072894L (en) | 2008-12-08 |
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Legal Events
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AS | Assignment |
Owner name: TOOL TECH AS, NORWAY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ERIKSEN, EGIL;REEL/FRAME:023609/0465 Effective date: 20091125 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |