WO2016139772A1 - 鋳鋼部材の補修方法 - Google Patents
鋳鋼部材の補修方法 Download PDFInfo
- Publication number
- WO2016139772A1 WO2016139772A1 PCT/JP2015/056325 JP2015056325W WO2016139772A1 WO 2016139772 A1 WO2016139772 A1 WO 2016139772A1 JP 2015056325 W JP2015056325 W JP 2015056325W WO 2016139772 A1 WO2016139772 A1 WO 2016139772A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cast steel
- repair
- recess
- steel member
- crack
- Prior art date
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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
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/023—Thermo-compression bonding
- B23K20/026—Thermo-compression bonding with diffusion of soldering material
-
- 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
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
- B23P6/045—Repairing fractures or cracked metal parts or products, e.g. castings of turbine components, e.g. moving or stationary blades, rotors, etc.
-
- 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
- B23K2101/001—Turbines
Definitions
- the present invention relates to a method for repairing a crack generated on the surface of a cast steel member.
- Cast steel members often used in thermal power generation facilities, nuclear power generation facilities, etc. are subject to creep damage due to thermal stress when subjected to high temperature and high pressure conditions for a long period of time. Since cracks generated on the surface cause damage, various repair methods have been proposed.
- Patent Document 1 as a repair method for a nickel-base superalloy gas turbine or the like, a cobalt-based braze alloy containing boron or the like, a cobalt-base wear-resistant alloy, or the like is mixed to form a powder mixture and sintered. Then, a method is described in which the surface portion of the turbine is removed, and the sintered product is diffusion bonded and dispersed.
- the present invention has been made in view of such circumstances, and an object thereof is to provide a repair method for a cast steel member that reliably repairs a crack generated on the surface of the cast steel member on site.
- One aspect of the present invention for achieving the above-described object is a method for repairing a cast steel member having a crack on its surface, wherein the cast steel member is cut from the surface to a predetermined depth so as to include the crack.
- the recess forming step for forming a recess having a wedge-shaped cross section that spreads toward the depth direction of the cast steel member, and made of a metal material softer than the cast steel member and can be diffusion-bonded to the cast steel member.
- a cast steel member is cut from its surface to a predetermined depth to form a recess, a repair member is embedded in the recess, and the embedded repair member and the cast steel member are diffusion-bonded to form a large heat treatment.
- the repair member and the cast steel member can be reliably joined at the work site without requiring an apparatus and without requiring a large amount of heat.
- the thermal stress applied to the portion where the repair member is embedded can be released to the surroundings. Thereby, the re-generation of the crack from a repair part can be prevented effectively.
- the cross section of the concave portion of the cast steel member to be formed has a wedge-shaped cross section that spreads from the surface toward the depth direction, and the repair member embedded by embedding the repair member in such a concave portion Can be made difficult to remove from the recess.
- produced on the surface of the cast steel member by the thermal stress can be repaired reliably on-site.
- a flux introduction step of introducing a flux that reduces an interfacial tension of a contact surface between the repair member and the recess into the repair member or the recess in the repair member embedding step, a flux introduction step of introducing a flux that reduces an interfacial tension of a contact surface between the repair member and the recess into the repair member or the recess.
- the diffusion bonding between the repair member and the cast steel member is more reliably performed by reducing the interfacial tension of the contact surface between the repair member and the recess by introducing the flux into the repair member or the recess. Can do.
- the boundary portion is heated so that a heating area to the exposed surface of the repair member is wider than a heating area to the surface of the cast steel member.
- Diffusion bonding is a joining method that utilizes plastic deformation due to heat of the members to be joined. By making it wider, the repair member and the cast steel member can be more reliably joined.
- the repair member embedding step includes a surplus portion polishing step of polishing a surplus portion formed on a surface layer portion of the repair member by pushing the repair member.
- the surface of the repaired cast steel member can be smoothed by polishing the surplus portion formed on the surface layer of the repair member.
- the repair member is selected from silver or aluminum.
- reliable diffusion bonding can be realized by using silver or aluminum that is a metal that is plastically deformed by heat and has sufficient strength as a repair member.
- a crack generated on the surface of a cast steel member can be reliably repaired on site.
- FIG. 3 is an enlarged plan view of a crack 12.
- FIG. FIG. 5 is an upper perspective view showing the shape of a recess 13. It is a front view of the recessed part 13 cut
- FIG. 5 is a side view of a recess 13 obtained by cutting the recess 13 in a vertical direction along a straight line RS parallel to the crack longitudinal direction.
- FIG. 4 is a diagram illustrating an example of a shape of a repair member 30.
- FIG. 5 is a diagram illustrating a repair method using a repair member 30.
- FIG. 5 is a diagram illustrating a repair method using a repair member 30. It is a figure explaining the method of grind
- FIG. 6 is a diagram illustrating an example of a shape of a repair member 50. It is a figure explaining the repair method by the repair member. It is a figure explaining the repair method by the repair member. It is an upper perspective view which shows another example of the shape of the recessed part.
- the method for repairing a cast steel member according to the present embodiment can be applied to repair of a crack in a cast steel member caused by thermal stress.
- a thermal power plant for example, it is provided in a thermal power plant, a nuclear power plant, or the like as shown in FIG. It can be applied to the outer shell member 10 of the steam turbine casing.
- the outer shell member 10 of the steam turbine casing is made of CrMoV cast steel or the like, and receives thermal stress as it starts and stops. As a result, the outer shell member 10 is subjected to creep damage, and a crack 12 is generated on the inner surface 11. For example, the crack 12 appears in a zigzag shape as shown in FIG.
- a repair method for a cast steel member will be described using the outer shell member 10 having the crack 12 on the surface 11 as an example of the cast steel member.
- FIG. 2 is a flowchart for explaining the procedure of the repair method of the present embodiment.
- the repair method of this embodiment includes the following steps. First, the direction and dimensions of the crack 12 are confirmed (hereinafter referred to as a crack confirmation step S1). Next, the outer shell member 10 is cut from the surface to a predetermined depth so as to include the crack 12 to form a recess (hereinafter referred to as a recess forming step S2). Next, a repair member is embedded in the recess (hereinafter referred to as repair member embedding step S3). Then, the embedded repair member and the outer shell member 10 that is the base material are joined by diffusion bonding (hereinafter referred to as diffusion bonding step S4). Details of these steps will be described below.
- FIG. 3 is an enlarged plan view of the crack 12.
- the longitudinal direction of the crack 12 and the short direction of the crack 12 which is a direction orthogonal to the longitudinal direction, are determined for the crack 12.
- the length of the crack 12 in the longitudinal direction of the crack 12 and the length of the crack 12 in the short direction of the crack 12 are measured with a caliper or the like.
- the length of the crack 12 in the longitudinal direction (hereinafter referred to as the crack longitudinal direction) is usually about 5 mm to 100 mm, and the length of the crack 12 in the lateral direction (hereinafter referred to as the crack lateral direction) is usually 0. .About 1 mm to 10 mm.
- the length in the crack longitudinal direction is L
- the length in the crack short direction is W.
- this crack 12 is not illustrated in the figure, it has also propagated in the depth direction.
- FIG. 4 is an upper perspective view showing the shape of the recess 13 formed in the recess formation step S2.
- the recess 13 is created on the surface 11 of the outer shell member 10 with a rectangular cutting line 14 (14a, 14b) provided so as to surround the surface of the crack 12 as a base line.
- the recessed part 13 is formed by cutting to the depth direction of the outer shell member 10 from this cutting line 14 in the direction of the end spread.
- the concave portion 13 is created as follows. First, a cutting line 14 is put on the surface of the outer shell member 10 with a cutter or the like so as to surround the surface of the crack 12. At this time, the cutting line 14 has rounded corners 15 at the four corners.
- the length of the side 14a in the longitudinal direction of the cutting line 14 is usually about 1 mm to 120 mm, and the length of the side 14b in the short direction of the cutting line 14 is usually about 1 mm to 30 mm. In this embodiment, for convenience of explanation, the length of the side 14a in the longitudinal direction of the cutting line 14 is L2, and the length of the side 14b in the short direction of the cutting line 14 is W2.
- FIG. 5 is a cross-sectional view of the recess 13 cut in the vertical direction by a straight line PQ parallel to the crack short direction
- FIG. 6 shows the recess 13 in the vertical direction by a straight line RS parallel to the crack longitudinal direction.
- FIG. 6 is a cross-sectional view of the recess 13 cut in the form of (the description of the crack 12 is simplified and shown by a dotted line).
- the concave portion 13 is divided into a groove portion 13a which is a rectangular parallelepiped space and a bulging portion 13b which is a space outside the groove portion 13a.
- the recess 13 is created by sequentially forming the groove 13a and the bulging portion 13b.
- tools such as a drill and an end mill, are used for formation of the recessed part 13 (cutting).
- the side surface 16 is formed by cutting vertically below the cutting line 14 as a base line, and the inner portion thereof is further cut to form the groove 13 a that is a rectangular parallelepiped space. .
- the depth of cutting of the groove 13a is a depth considered to be sufficiently deeper than the maximum depth of the crack 12, and thus the crack 12 is removed. This depth is usually about 1 mm to 100 mm.
- the maximum depth of the crack 12 cannot be predicted, that is, when the degree of progress into the crack 12 is not known, the cutting is repeated little by little while confirming the presence or absence of the crack 12.
- the cutting depth of the groove 13a is D2.
- the bulging portion 13b is created. Specifically, as shown in FIGS. 5 and 6, the cutting tool is advanced in a direction inclined outward from the cutting surface of the side surface 16 of the groove 13 a with the cutting line 14 as a base line. When the depth of cutting reaches the depth of the bottom surface 17 of the groove 13a, the cutting is performed up to the edge 18 of the bottom surface 17 by gradually changing the cutting direction from the outside to the inside. By doing in this way, the curved surface 21 (fillet) is formed under the bulging part 13b.
- the concave portion 13 including the groove portion 13a and the bulging portion 13b is formed.
- the recess 13 has a wedge-shaped cross section that spreads from the surface 11 of the outer shell member 10 in the depth direction.
- the curved surface 21 formed in the bulging part 13b is provided in the perimeter of the bottom edge of the recessed part 13, and, thereby, all the corner parts 22 of the recessed part 13 are formed in a curved surface. become.
- FIG. 7 is a view showing an example of the shape of the repair member 30.
- the repair member 30 is a columnar member in which both end faces 31 in the longitudinal direction are processed into a circular shape.
- the length of the repair member 30 in the axial direction is L2.
- the diameter is d, which is slightly longer than the length W2 of the side 14b in the longitudinal direction of the cutting line 14. Specific dimensions of d will be described later.
- the repair member 30 is made of a metal material that is softer than the outer shell member 10, and is a material that can be diffusion bonded to the outer shell member 10 to be described later. Examples of such a material include silver or aluminum that is easily plastically deformed by heat, and metals having tensile strength equivalent to these.
- FIG. 8 and 9 are diagrams for explaining a repair method using the repair member 30.
- FIG. 8 is a front view of the recess 13 corresponding to FIG. 5
- FIG. 9 is a side view of the recess 13 corresponding to FIG.
- the repair member 30 is embedded in the recess 13. Specifically, with the end surface 31 of the repair member 30 and the side 14b in the short direction of the cutting line 14 aligned, the repair member 30 is pushed into the recess 13 while hitting it with a hammer or the like from above.
- the diameter d of the end surface 31 of the repair member 30 is slightly larger than the length W2 of the side 14b in the longitudinal direction of the cutting line 14 (that is, the short side of the opening surface of the recess 13). Since the repair member 30 is made of a metal material softer than the outer shell member 10, the repair member 30 can be inserted into the recess 13 while being struck and deformed. Further, in this process, the embedded portion of the repair member 30 is deformed (plastically deformed) while entering the bulging portion 13b, and as a result, the entire repair member 30 can be filled in the recess 13.
- the volume of the repair member 30 is adjusted so as to be the same as the occupied space of the concave portion 13, and the diameter d and the length L2 of the repair member 30 are also adjusted to such a length. It is preferable that Thereby, the surface 11 of the outer shell member 10 after repair can be kept smooth.
- the repair member 30 may be an elliptical columnar member instead of a columnar member.
- the length of the minor axis of the end surface 31 of the repair member 30 is made shorter than the length W2 of the side 14b in the lateral direction of the cutting line 14, and the length of the major axis of the end surface 31 is set to the depth of the recess 13 (groove 13a). It is longer than the length D2 in the direction.
- the repair member 30 can be easily inserted into the concave portion 13 with the minor axis direction of the end surface 31 being horizontal and the major axis direction of the end surface 31 being vertical. Thereafter, the repair member 30 can be filled into the entire recess 13 while the repair member 30 is hit from above and deformed toward the bulging portion 13b.
- the bottom edge of the concave portion 13 has the curved surface 21 and the corner portion 22 of the concave portion 13 is also formed in a curved surface. Therefore, when the repair member 30 is embedded, local thermal stress is generated. It can concentrate and prevent the cracks from recurring. Further, since the corner 15 of the cutting line 14 (recess 13) is also processed into rounded corners, the recurrence of the crack 12 from the surface 11 in the vicinity of the corner 15 can be prevented.
- the flux 19 When embedding the repair member in the recess 13, the flux 19 is applied to the surface of the repair member 30 or the inner surface of the recess 13 (or both).
- the flux 19 is a diffusion accelerator containing, for example, calcium carbonate or calcium fluoride, and reduces the interfacial tension between the surface of the repair member 30 and the inner surface of the recess 13 when performing diffusion bonding described later. As a result, diffusion bonding between the repair member 30 and the outer shell member 10 can be performed more reliably.
- the repair member 30 since the repair member 30 is plastically deformed when embedded in the recess 13, as a result, a surplus portion may occur in the surface layer portion.
- the surplus portion 34 is polished by a polishing tool, and the boundary portion between the surface of the outer shell member 10 and the surface (exposed surface) of the repair member 30 is flattened. Thereby, the surface 11 of the outer shell member 10 after repair can be prepared smoothly.
- FIG. 11 is a diagram for explaining a diffusion bonding method.
- diffusion bonding is performed using a bonding jig 40.
- the joining jig 40 has a small disk-shaped rotating part 41 attached to the lower part thereof (the diameter of the rotating part 41 is, for example, about 20 mm).
- the rotating part 41 is concentric with the center of the circle of the main surface. Can be rotated at a high speed (several hundred to several thousand rpm).
- the rotating portion 41 is brought into contact with the outer surface 37 of the repair member 30 and the boundary portion 35 of the surface 11 of the outer shell member 10, and the bonding jig 40 is moved along the boundary portion 35 with the rotating portion 41. It is done by running while rotating.
- the joining jig 40 it is preferable to run the joining jig 40 so that the heating area to the outer surface 37 of the repair member 30 is wider than the heating area to the surface 11 of the outer shell member 10 with respect to the boundary portion 35.
- the joining jig 40 is caused to travel in a state where the rotating portion 41 protrudes from the surface 11 side of the outer shell member 10 by about 1 mm, for example. Since diffusion bonding is a bonding method using plastic deformation due to heat of the members to be bonded, the heating region to the outer surface 37 of the repair member 30 that easily undergoes plastic deformation due to heat is heated to the surface 11 of the outer shell member 10. By making it wider than the region, the repair member 30 and the outer shell member 10 can be more reliably joined.
- a cast steel member such as the outer shell member 10 is cut from its surface to a predetermined depth to form a recess 13 (recess formation step S2), and the recess is repaired.
- burying the member 30 air member embedding step S3 and diffusion-bonding the repair member 30 and the outer shell member 10 (diffusion bonding step S4), a large apparatus is required and a large amount of heat is required.
- the repair member 30 and the outer shell member 10 can be reliably joined without any problems.
- the repair member embedding step S3 by using a member made of a metal material softer than the outer shell member 10 as the repair member 30 embedded in the recess 13, the thermal stress applied to the portion where the repair member 30 is embedded is surrounded by I can escape. Thereby, it is possible to prevent the occurrence of cracks from the repaired portion.
- the cross section of the concave portion 13 of the outer shell member 10 has a wedge-shaped cross section that widens from the surface 11 in the depth direction.
- a crack generated on the surface of the cast steel member due to thermal stress can be reliably repaired on site.
- a cylindrical or elliptical columnar member is used as the repair member, but other shapes are also conceivable.
- the repair member may have a rectangular parallelepiped shape.
- the length of the side 51 in the width direction of the repair member 50 is W2
- the length of the side 52 in the depth direction is L2
- the side 14b in the short direction of the cutting line 14 and the length of the cutting line 14 are as follows. It is made to correspond with the side 14a of a longitudinal direction.
- the side 53 (length D3) in the height direction of the repair member 50 is made longer than the height of the recess 13 (height of the groove 13a) D2.
- the repair members 50 are pushed into the recesses 13 with the sides 14a corresponding to each other.
- the volume of the repair member 30 is preferably the same as the space volume of the recess 13.
- the curved surface 21 is provided at the bottom edge of the recess 13, but this may be omitted to perform repair work more quickly. That is, as shown in FIG. 16, the bottom edge of the recess 13 may be formed as an acute corner 23 without being curved.
- the concave portion 13 is formed so as to have a wedge-shaped cross section in both the cross section in the crack longitudinal direction and the cross section in the short crack direction. It is also possible to have a wedge-shaped cross section only for the cross section or only the cross section in the crack short direction.
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Abstract
Description
このように、本発明の鋳鋼部材の補修方法によれば、熱応力により鋳鋼部材の表面に発生した亀裂を現場で確実に補修することができる。
Claims (5)
- 表面に亀裂が発生した鋳鋼部材の補修方法であって、
前記亀裂を含むように、前記鋳鋼部材をその表面から所定深さまで切削することにより、前記鋳鋼部材の深さ方向に向かって末広がりの楔状の断面を有する凹部を形成する凹部形成工程と、
前記鋳鋼部材より柔らかい金属製の素材からなり、かつ前記鋳鋼部材と拡散接合が可能な補修部材を、前記凹部形成工程により形成された凹部に押し込んで埋設する補修部材埋設工程と、
前記埋設した補修部材の露出面と、前記鋳鋼部材の表面との境界部を加熱することにより、前記補修部材と前記鋳鋼部材とを拡散接合する拡散接合工程と、
を含む鋳鋼部材の補修方法。 - 前記補修部材埋設工程においては、前記補修部材と前記凹部との接触面の界面張力を減少させるフラックスを前記補修部材又は前記凹部に導入するフラックス導入工程を含む、請求項1に記載の鋳鋼部材の補修方法。
- 前記拡散接合工程においては、前記鋳鋼部材の表面への加熱領域よりも前記補修部材の露出面への加熱領域が広くなるように前記境界部を加熱する、請求項1又は2に記載の鋳鋼部材の補修方法。
- 前記補修部材埋設工程は、前記補修部材を押し込むことにより前記補修部材の表層部に形成される余盛部を研磨する余盛部研磨工程を含む、請求項1乃至3のいずれか一項に記載の鋳鋼部材の補修方法。
- 前記補修部材は、銀又はアルミニウムから選択される、請求項1乃至4のいずれか一項に記載の鋳鋼部材の補修方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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EP15883940.7A EP3266555A4 (en) | 2015-03-04 | 2015-03-04 | Method for repairing cast steel member |
US15/542,888 US20180009069A1 (en) | 2015-03-04 | 2015-03-04 | Repair method of cast steel member |
PCT/JP2015/056325 WO2016139772A1 (ja) | 2015-03-04 | 2015-03-04 | 鋳鋼部材の補修方法 |
JP2016540707A JP6018351B1 (ja) | 2015-03-04 | 2015-03-04 | 鋳鋼部材の補修方法 |
CA2978232A CA2978232C (en) | 2015-03-04 | 2015-03-04 | Repair method 0f cast steel member |
Applications Claiming Priority (1)
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PCT/JP2015/056325 WO2016139772A1 (ja) | 2015-03-04 | 2015-03-04 | 鋳鋼部材の補修方法 |
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WO2016139772A1 true WO2016139772A1 (ja) | 2016-09-09 |
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PCT/JP2015/056325 WO2016139772A1 (ja) | 2015-03-04 | 2015-03-04 | 鋳鋼部材の補修方法 |
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US (1) | US20180009069A1 (ja) |
EP (1) | EP3266555A4 (ja) |
JP (1) | JP6018351B1 (ja) |
CA (1) | CA2978232C (ja) |
WO (1) | WO2016139772A1 (ja) |
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CN113500270B (zh) * | 2021-06-30 | 2023-03-07 | 共享铸钢有限公司 | 一种铸钢件表面缺陷的焊接方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2252986A (en) * | 1939-03-03 | 1941-08-19 | Lawrence B Scott | Method of repairing cracked or fractured metal walls |
GB674599A (en) * | 1950-09-15 | 1952-06-25 | Buzuluk | A method of repairing thick-walled enamelled castings |
GB764621A (en) * | 1953-12-07 | 1956-12-28 | Svenska Metalock Aktiebolag | Improvements in or relating to the repairing of fractured metal articles |
JPS46945B1 (ja) * | 1967-12-05 | 1971-01-11 | ||
JP2004106037A (ja) * | 2002-09-20 | 2004-04-08 | Hitachi Ltd | 金属材料の結合方法 |
JP2007222925A (ja) * | 2006-02-24 | 2007-09-06 | Mitsubishi Heavy Ind Ltd | 摩擦攪拌接合方法 |
US20090229101A1 (en) * | 2006-05-18 | 2009-09-17 | Siemens Aktiengesellschaft | Method of Repairing a Component, and a Component |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2319442A1 (fr) * | 1975-07-31 | 1977-02-25 | Castellano Francois | Procede de remise en etat de lingotiere et lingotiere obtenue |
JP3839939B2 (ja) * | 1997-11-19 | 2006-11-01 | 株式会社東芝 | コーティング端部構造 |
US6238187B1 (en) * | 1999-10-14 | 2001-05-29 | Lsp Technologies, Inc. | Method using laser shock peening to process airfoil weld repairs pertaining to blade cut and weld techniques |
DE10008257A1 (de) * | 2000-02-23 | 2001-08-30 | Alstom Power Schweiz Ag Baden | Verfahren zur Reparatur einer Gasturbinenkomponente |
JP2005305492A (ja) * | 2004-04-20 | 2005-11-04 | Toshiba Corp | 拡散ろう付補修方法およびその補修方法を用いて補修した耐熱部品 |
EP1772228A1 (de) * | 2005-10-07 | 2007-04-11 | Siemens Aktiengesellschaft | Verfahren zum Reparieren eines Bauteils mit einer gerichteten Mikrostruktur |
EP2114615A1 (de) * | 2007-02-06 | 2009-11-11 | Siemens Aktiengesellschaft | Lotzusammensetzung und hartlötverfahren für superlegierungen |
CN202045477U (zh) * | 2010-12-31 | 2011-11-23 | 重庆市银盛模具有限公司 | 模具修补块 |
US20130082088A1 (en) * | 2011-09-30 | 2013-04-04 | General Electric Company | Method and apparatus for repairing a component |
CN103484851A (zh) * | 2012-06-13 | 2014-01-01 | 通用电气公司 | 修理金属部件及燃气涡轮机部件的方法 |
PL3106257T3 (pl) * | 2014-02-13 | 2018-09-28 | The Chugoku Electric Power Co., Inc. | Sposób naprawiania elementu ze staliwa |
-
2015
- 2015-03-04 EP EP15883940.7A patent/EP3266555A4/en not_active Withdrawn
- 2015-03-04 CA CA2978232A patent/CA2978232C/en active Active
- 2015-03-04 JP JP2016540707A patent/JP6018351B1/ja not_active Expired - Fee Related
- 2015-03-04 US US15/542,888 patent/US20180009069A1/en not_active Abandoned
- 2015-03-04 WO PCT/JP2015/056325 patent/WO2016139772A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2252986A (en) * | 1939-03-03 | 1941-08-19 | Lawrence B Scott | Method of repairing cracked or fractured metal walls |
GB674599A (en) * | 1950-09-15 | 1952-06-25 | Buzuluk | A method of repairing thick-walled enamelled castings |
GB764621A (en) * | 1953-12-07 | 1956-12-28 | Svenska Metalock Aktiebolag | Improvements in or relating to the repairing of fractured metal articles |
JPS46945B1 (ja) * | 1967-12-05 | 1971-01-11 | ||
JP2004106037A (ja) * | 2002-09-20 | 2004-04-08 | Hitachi Ltd | 金属材料の結合方法 |
JP2007222925A (ja) * | 2006-02-24 | 2007-09-06 | Mitsubishi Heavy Ind Ltd | 摩擦攪拌接合方法 |
US20090229101A1 (en) * | 2006-05-18 | 2009-09-17 | Siemens Aktiengesellschaft | Method of Repairing a Component, and a Component |
Non-Patent Citations (1)
Title |
---|
See also references of EP3266555A4 * |
Also Published As
Publication number | Publication date |
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JPWO2016139772A1 (ja) | 2017-04-27 |
CA2978232A1 (en) | 2016-09-09 |
EP3266555A4 (en) | 2018-03-07 |
EP3266555A1 (en) | 2018-01-10 |
JP6018351B1 (ja) | 2016-11-02 |
US20180009069A1 (en) | 2018-01-11 |
CA2978232C (en) | 2019-09-17 |
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