CN1990157A - Renovation technique of aerial engine flow guiding disc - Google Patents
Renovation technique of aerial engine flow guiding disc Download PDFInfo
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- CN1990157A CN1990157A CN 200510130871 CN200510130871A CN1990157A CN 1990157 A CN1990157 A CN 1990157A CN 200510130871 CN200510130871 CN 200510130871 CN 200510130871 A CN200510130871 A CN 200510130871A CN 1990157 A CN1990157 A CN 1990157A
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- flow guiding
- guiding disc
- melting coating
- laser melting
- laser
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Abstract
The invention provides a repair process of aeroengine flow guiding plate which is combined quickly by the following three processes: 1)removing defect parts; 2) laser cladding: using automatic control laser cladding, the operating process parameters are: diameter of melting pool is 2~4mm, depth is 0.05 ~ 0.2mm, heating time is 0.001 ~ 0.1 seconds, laser power is 600 ~ 2000W, laser scanning rate is 2~6 mm/s; 3) detection: including sizing detection, coloring and flaw detection, X-ray testing, ultrasonic testing ; its characteristic is : said laser cladding uses sectionalised and symmetrical way on the round. The advantages of the repair process of aeroengine flow guiding plate in the invention are : changing the issue of flow guiding plate can not be repaired, high adaptability, simple operation, small thermal deformation, strong standard capability, the repaired flow guiding plate is fit the use requirements and has huge tremendous value.
Description
Technical field
The present invention relates to the maintenance process of aerial engine flow guiding disc.
Background technology
Aerial engine flow guiding disc is positioned at the air inlet position of high-pressure turbine, is fixed on the turbine rotor, is used to seal the high-temperature high-pressure fuel gas in the turbine.Flow guiding disc belongs to ultrathin wall member, and one-level flow guiding disc diameter is about 700mm, and thinnest part is about 5mm, and rotating speed is up to 13000 rev/mins.
The flow guiding disc manufacturing requires very strict, no matter is flow guiding disc material or processing and manufacturing, and China does not all possess strength, how from external import, so flow guiding disc costs an arm and a leg.Because flow guiding disc is under the high-revolving operating mode of HTHP, thereby often deforms and wear and tear, and can not repair after damaging, can only more renew part.
Summary of the invention
The object of the present invention is to provide a kind of effective aerial engine flow guiding disc renovation technique.
The invention provides a kind of renovation technique of aerial engine flow guiding disc, rapid-result successively by following three operations:
1) cleaning defect: polishing needs the face of cladding, fatigue layer is removed clean;
2) laser melting coating: adopt control laser melting coating automatically, the parameter of operating process is: the molten bath diameter is 2～4mm, and the degree of depth is 0.05～0.2mm, and be 0.001～0.1s heat time heating time, and laser power is 600～2000W, and laser scanning speed is 2～6mm/s;
3) detect, comprise size detection, dye penetrant inspection detection, X-ray check, ultrasound examination, defective such as do not allow crackle, pore, be mingled with;
It is characterized in that: described laser melting coating adopts segmentation on circumference, symmetric mode to carry out, as divide four groups: first group: 1,5 sections; Second group: 3,7 sections; The 3rd group: 2,6 sections; The 4th group: 4,8 sections.
The renovation technique of aerial engine flow guiding disc provided by the invention, its laser melting coating can carry out on frock.Frock mainly comprises base (5), gland (3), screw rod (1) and nut (2), flow guiding disc (4) is placed on the base (5), its outer circular edge and base (5) leave little clearance, gland (3) is pressed on the flow guiding disc (4), and the damage location of flow guiding disc (4) is exposed, to make things convenient for the laser melting coating operation, whole frock connects with screw rod (1), and fastening with nut (2), prevent the distortion of flow guiding disc, and make things convenient for the work of laser melting coating.
The renovation technique of aerial engine flow guiding disc provided by the invention, its advantage is: changed the phenomenon that flow guiding disc can not be repaired, and this renovation technique adaptability is strong, simple to operate, thermal deformation is little, standardization is strong, and the flow guiding disc performance after the reparation meets instructions for use, has huge value.
Description of drawings
Fig. 1 is the structural representation of laser melting coating with frock.
The specific embodiment
The renovation technique of embodiment 1 certain aero-engine one-level flow guiding disc
Flow guiding disc damage status: circumferential periphery serious wear.
Processing step is as follows:
1, detects and record before the cladding.
2, will need the face polishing of cladding before the cladding, fatigue layer be removed clean.
3, laser melting coating:
With frock flow guiding disc is compressed before A, the cladding, prevent from cladding process, to produce distortion.
Technological parameter is when B, cladding: the about 2mm of pool size diameter, and the about 0.05mm of the degree of depth, be 0.01s heat time heating time, and laser power is about 1000W, and laser scanning speed is 3mm/s.
C, employing circumferential sectors, symmetric mode carry out cladding.Concrete cladding is in proper order: first group: 1,5 sections; Second group: 3,7 sections; The 3rd group: 2,6 sections; The 4th group: 4,8 sections.
4, detect and record defective such as do not allow crackle, pore, be mingled with after the cladding.
The frock of using in the laser cladding process mainly comprises base (5), gland (3), screw rod (1) and nut (2).
Flow guiding disc (4) is placed on the base (5), and its outer circular edge and base (5) leave little clearance, and gland (3) is pressed on the flow guiding disc (4), and the damage location of flow guiding disc (4) is exposed, to make things convenient for the laser melting coating operation, whole frock connects with screw rod (1), and fastening with nut (2).
This frock is installed accurate, easy, firm, satisfies flow guiding disc laser melting coating job requirements.
Claims (2)
1, a kind of renovation technique of aerial engine flow guiding disc, rapid-result successively by following three operations:
1) cleaning defect;
2) laser melting coating: adopt control laser melting coating automatically, the parameter of operating process is: the molten bath diameter is 2～4mm, and the degree of depth is 0.05～0.2mm, and be 0.001～0.1s heat time heating time, and laser power is 600～2000W, and laser scanning speed is 2～6mm/s;
3) detect, comprise size detection, dye penetrant inspection detection, X-ray check, ultrasound examination;
It is characterized in that: described laser melting coating adopts segmentation on circumference, symmetric mode to carry out.
2, according to the renovation technique of the described aerial engine flow guiding disc of claim 1, it is characterized in that: described laser melting coating carries out on frock, frock, it is characterized in that: mainly comprise base (5), gland (3), screw rod (1) and nut (2), flow guiding disc (4) is placed on the base (5), its outer circular edge and base (5) leave little clearance, gland (3) is pressed on the flow guiding disc (4), and the damage location of flow guiding disc (4) is exposed, to make things convenient for the laser melting coating operation, whole frock connects with screw rod (1), and fastening with nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101308716A CN100455396C (en) | 2005-12-26 | 2005-12-26 | Renovation technique of aerial engine flow guiding disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101308716A CN100455396C (en) | 2005-12-26 | 2005-12-26 | Renovation technique of aerial engine flow guiding disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1990157A true CN1990157A (en) | 2007-07-04 |
| CN100455396C CN100455396C (en) | 2009-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101308716A Expired - Fee Related CN100455396C (en) | 2005-12-26 | 2005-12-26 | Renovation technique of aerial engine flow guiding disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100455396C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407009B (en) * | 2008-11-11 | 2011-05-04 | 深圳市大族激光科技股份有限公司 | Fixture for laser welding of three-dimensional curved surface products |
| CN103753089A (en) * | 2014-01-13 | 2014-04-30 | 上海森松制药设备工程有限公司 | Welding disc fixing tool |
| CN110977324A (en) * | 2020-01-02 | 2020-04-10 | 重庆工商大学 | Method for repairing pump impeller cover plate by hole digging and laser additive |
| CN111321400A (en) * | 2020-03-31 | 2020-06-23 | 中煤科工集团西安研究院有限公司 | Deformation control method in laser cladding of bimetal guide rail |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4743733A (en) * | 1984-10-01 | 1988-05-10 | General Electric Company | Method and apparatus for repairing metal in an article |
| CN1026219C (en) * | 1992-05-20 | 1994-10-19 | 中国科学院金属腐蚀与防护研究所 | Technology of laser contour melting cast for surface treatment of aerial blade |
| CN1185075C (en) * | 2001-06-15 | 2005-01-19 | 沈阳大陆激光技术有限公司 | Laser method for fast repairing damaged area in smoke machine main shaft |
| CN1392023A (en) * | 2001-06-15 | 2003-01-22 | 沈阳大陆激光技术有限公司 | Laser profile repairing process for damaged blade of smoke gas turbine |
| US7146725B2 (en) * | 2003-05-06 | 2006-12-12 | Siemens Power Generation, Inc. | Repair of combustion turbine components |
| US20050178750A1 (en) * | 2004-02-13 | 2005-08-18 | Kenny Cheng | Repair of article by laser cladding |
-
2005
- 2005-12-26 CN CNB2005101308716A patent/CN100455396C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407009B (en) * | 2008-11-11 | 2011-05-04 | 深圳市大族激光科技股份有限公司 | Fixture for laser welding of three-dimensional curved surface products |
| CN103753089A (en) * | 2014-01-13 | 2014-04-30 | 上海森松制药设备工程有限公司 | Welding disc fixing tool |
| CN110977324A (en) * | 2020-01-02 | 2020-04-10 | 重庆工商大学 | Method for repairing pump impeller cover plate by hole digging and laser additive |
| CN111321400A (en) * | 2020-03-31 | 2020-06-23 | 中煤科工集团西安研究院有限公司 | Deformation control method in laser cladding of bimetal guide rail |
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| Publication number | Publication date |
|---|---|
| CN100455396C (en) | 2009-01-28 |
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Granted publication date: 20090128 Termination date: 20111226 |