CN107745223A - A kind of restorative procedure for Middle casing rear end Internal Hole Deformation - Google Patents
A kind of restorative procedure for Middle casing rear end Internal Hole Deformation Download PDFInfo
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- CN107745223A CN107745223A CN201711189014.2A CN201711189014A CN107745223A CN 107745223 A CN107745223 A CN 107745223A CN 201711189014 A CN201711189014 A CN 201711189014A CN 107745223 A CN107745223 A CN 107745223A
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- faces
- middle casing
- titanacycle
- rear end
- restorative procedure
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of restorative procedure for Middle casing rear end Internal Hole Deformation, mainly comprises the following steps：Step 1：Car Middle casing locating surface, it would be desirable to which the A faces and B faces for repairing position machine；Step 2：Remove Middle casing Vehicle Processing burr；Step 3：With alcohol washes piece surface and inner chamber；Step 4：Reparation area after agency casing Vehicle Processing carries out fluoroscopy；Step 5：Piece surface and inner chamber are cleaned again；Step 6：B faces are subjected to plasma spraying nickel aluminium coating；Step 7：By Middle casing A face Vehicle Processing inner circle annular grooves and step；Step 8：Process titanacycle；Step 9：Titanacycle is assembled on Middle casing；Step 10：Process A faces and B faces；Step 11：With alcohol washes piece surface and inner chamber；Step 12：To part inspection, complete to repair.The advantages that present invention is novel, simple, convenient effectively, cost is cheap, application effect is obvious.
Description
Technical field
The present invention relates to aero-engine Middle casing recovery technique field, more particularly to large-scale fanjet intermediary
The Deformation Repair of casing rear end endoporus, specifically a kind of restorative procedure for Middle casing rear end Internal Hole Deformation.
Background technology
There is moderate finite deformation (circle bounce 0.5mm, end for certain the type Middle casing weld assembly rear end endoporus manufactured in the recent period
Beat 0.3mm in face), Middle casing weld assembly is the significant components of certain large-scale fanjet, and endoporus bounce in rear end should not surpass
0.03mm is crossed, the position is the installation site of bearing block, and rear end endoporus, which can not such as be repaired, will cause the component not use；It is existing
There is the situation for not occurring rear end Internal Hole Deformation in technology, the experience of repairing can not used for reference.
The content of the invention
The purpose of the present invention is to disclose a kind of elastic caoutchouc powdered-metal lacquer coat structure.
Realizing the technical scheme that the purpose of the present invention uses is：
A kind of restorative procedure for Middle casing rear end Internal Hole Deformation, comprise the following steps：
Step 1：Car Middle casing locating surface, it would be desirable to which the A faces and B faces for repairing position machine；
Step 2：Middle casing Vehicle Processing burr is removed, sharp side falls blunt 0.2 ± 0.1；
Step 3：With alcohol washes piece surface and inner chamber, all dirts and fifth wheel are removed；
Step 4：Reparation area after agency casing Vehicle Processing, i.e. A faces and B faces domain carry out fluoroscopy；
Step 5：Alcohol washes piece surface and inner chamber are used again, remove all dirts and fifth wheel；
Step 6：B faces are subjected to plasma spraying nickel aluminium coating；
Step 7：By Middle casing A face Vehicle Processing inner circle annular grooves and step；
Step 8：Process titanacycle：Titanacycle excircle dimension is interference fitted with inner circle annular groove；
Step 9：Middle casing and titanacycle are extracted, titanacycle is assembled on Middle casing；
Step 10：A faces and B faces are processed, using machining coating and titanacycle；
Step 11：With alcohol washes piece surface and inner chamber, all dirts and fifth wheel are removed；
Step 12：Relative dimensions inspection is carried out to part, completes to repair.
It is an advantage of the invention that：
1st, the present invention is during the troubleshooting of certain type Middle casing, gropes to summarize and is mutually tied with spraying rear end endoporus is bushing
The restorative procedure of conjunction, and the Deformation Repair of Middle casing weld assembly rear end endoporus is successfully applied to, this restorative procedure is expert at
Still belong to the first time in the industry implementation.
2nd, method of the invention have intention it is novel, it is simple, convenient effectively, cost is cheap, application effect is obvious etc.
Advantage.It can apply to Deformation Repair and the overhaul field of domestic, external large-scale turbofan aero-engine Middle casing.Can be real
The target of the restorative procedure of existing Middle casing rear end Internal Hole Deformation, market prospects are extremely wide.
3rd, after method of the invention has been successfully applied to the domestic large-scale fanjet Middle casing weld assembly in China
The Deformation Repair of endoporus is held, the restorative procedure of large-scale fanjet Middle casing weld assembly is extended, solves in rear end
The reparation problem of bore deformation.Ensure that to develop experience is have accumulated with being repaired while delivery progress for depth in the future again.It is complete
The Deformation Repair task of the Middle casing weld assembly front end endoporus maximum into current industry inside dimension, grope the reparation side summarized
Method is in industry still belonged to the first time use, and experience and data are have accumulated for the processing and overhaul of same problems in the future.
Brief description of the drawings
Fig. 1 is that Middle casing repairs position schematic diagram；
Fig. 2 is Middle casing spraying B faces schematic diagram；
Fig. 3 is Middle casing A inner circle annular groove schematic diagrames；
Fig. 4 is Middle casing titanacycle structural representation；
Fig. 5 is Middle casing assembling titanacycle schematic diagram；
Fig. 6 is relative dimensions schematic diagram after Middle casing is repaired.
Embodiment
Reference picture 1-6 further illustrates to embodiment of the present invention.
Step 1：Car Middle casing locating surface, it would be desirable to which the A faces and B faces for repairing position machine；Machined parameters are
φ 278.8, referring to Fig. 1；
Step 2：Middle casing Vehicle Processing burr is removed, sharp side falls blunt 0.2 ± 0.1, pays attention to not allowing piece surface of damaging；
Step 3：With alcohol washes piece surface and inner chamber, all dirts and fifth wheel are removed；
Step 4：Reparation area after agency casing Vehicle Processing, i.e. A faces and B faces domain carry out fluoroscopy；
Step 5：Alcohol washes piece surface and inner chamber are used again, remove all dirts and fifth wheel.
Step 6：B faces are subjected to plasma spraying nickel aluminium coating；Referring to Fig. 2；
Step 7：By Middle casing A face Vehicle Processing inner circles annular groove (groove being caught in for titanacycle) and step：Specific requirement be
Apart from the upper surface 6.4mm processing deep 1.04mm of radial direction, long 7.36mm groove, the groove depth 0.14mm at distance B faces；Referring to Fig. 3；
Step 8：Process titanacycle：Titanacycle excircle dimension and inner circle annular groove are interference fitted, titanacycle wall thickness 3.1mm, cylindrical to have length
7.16mm, high 0.17mm boss, there is 0.5mm × 45 ° chamfering boss top is cylindrical, R0.2mm fillets are arranged at bottom；Referring to figure
4。
Step 9：Middle casing and titanacycle are extracted, titanacycle is assembled on Middle casing；Referring to Fig. 5.
1) cools down titanacycle using liquid nitrogen, soaking time about 1 minute；
2) is pressed from both sides out from liquid nitrogen titanacycle using tweezers, and titanacycle is assembled into Middle casing benchmark at the step of B faces direction
In the inner circle annular groove of A faces, it is allowed to titanacycle (attention protective coating) is gently tapped using wooden mallet, makes titanacycle and Middle casing A faces close
Fitting；The cylindrical 7.16mm projection sections of titanacycle are mounted in main body in circular groove, avoid play；
3) after the completion of, faying face and titanacycle are checked using clearance gauge and dial gauge；
Step 10：A faces and B faces are processed, using machining coating and titanacycle.Referring to Fig. 6.
Step 11：With alcohol washes piece surface and inner chamber, all dirts and fifth wheel are removed.
Step 12：Relative dimensions inspection is carried out to part, completes to repair.
Claims (4)
- A kind of 1. restorative procedure for Middle casing rear end Internal Hole Deformation, it is characterised in thatComprise the following steps：Step 1：Car Middle casing locating surface, it would be desirable to which the A faces and B faces for repairing position machine；Step 2：Middle casing Vehicle Processing burr is removed, sharp side falls blunt 0.2 ± 0.1；Step 3：With alcohol washes piece surface and inner chamber, all dirts and fifth wheel are removed；Step 4：Reparation area after agency casing Vehicle Processing, i.e. A faces and B faces domain carry out fluoroscopy；Step 5：Alcohol washes piece surface and inner chamber are used again, remove all dirts and fifth wheel；Step 6：B faces are subjected to plasma spraying nickel aluminium coating；Step 7：By Middle casing A face Vehicle Processing inner circle annular grooves and step；Step 8：Process titanacycle：Titanacycle excircle dimension is interference fitted with inner circle annular groove；Step 9：Middle casing and titanacycle are extracted, titanacycle is assembled on Middle casing；Step 10：A faces and B faces are processed, using machining coating and titanacycle；Step 11：With alcohol washes piece surface and inner chamber, all dirts and fifth wheel are removed；Step 12：Relative dimensions inspection is carried out to part, completes to repair.
- A kind of 2. restorative procedure for Middle casing rear end Internal Hole Deformation according to claim 1, it is characterised in thatSpecific requirement is apart from the upper surface 6.4mm processing deep 1.04mm of radial direction, long 7.36mm groove, in distance B faces in step 7 Locate groove depth 0.14mm.
- A kind of 3. restorative procedure for Middle casing rear end Internal Hole Deformation according to claim 1, it is characterised in thatTitanacycle wall thickness 3.1mm in step 8, cylindrical have a long 7.16mm, high 0.17mm boss, has 0.5mm boss top is cylindrical R0.2mm fillets are arranged at × 45 ° of chamferings, bottom.
- A kind of 4. restorative procedure for Middle casing rear end Internal Hole Deformation according to claim 1, it is characterised in thatInstallation process is in step 9：1) cools down titanacycle using liquid nitrogen, soaking time about 1 minute；2) is pressed from both sides out from liquid nitrogen titanacycle using tweezers, and titanacycle is assembled into Middle casing benchmark A faces at the step of B faces direction In inner circle annular groove, it is allowed to gently tap titanacycle using wooden mallet, titanacycle is brought into close contact with Middle casing A faces；Titanacycle is cylindrical 7.16mm projection sections are mounted in main body in circular groove, avoid play；3) after the completion of, faying face and titanacycle are checked using clearance gauge and dial gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711189014.2A CN107745223B (en) | 2017-11-24 | 2017-11-24 | A kind of restorative procedure for Middle casing rear end Internal Hole Deformation |
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| CN201711189014.2A CN107745223B (en) | 2017-11-24 | 2017-11-24 | A kind of restorative procedure for Middle casing rear end Internal Hole Deformation |
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| CN107745223A true CN107745223A (en) | 2018-03-02 |
| CN107745223B CN107745223B (en) | 2019-04-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341959A (en) * | 2018-12-10 | 2019-02-15 | 中国航发贵州黎阳航空动力有限公司 | A kind of air-tight test fixture |
| CN110643990A (en) * | 2019-09-09 | 2020-01-03 | 中国人民解放军第五七一九工厂 | Method for adjusting intermediate casing unit body to inhibit vibration of aero-engine |
| CN115041914A (en) * | 2022-06-21 | 2022-09-13 | 湖南南方通用航空发动机有限公司 | Method for repairing inner hole of casing and casing |
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| JPH06318647A (en) * | 1993-05-07 | 1994-11-15 | Shinko Electric Ind Co Ltd | Package for optical module and its manufacture |
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| CN103586625A (en) * | 2013-11-11 | 2014-02-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for restoring abrasion and deformation of spigot of thin-wall cartridge receiver |
| CN104476096A (en) * | 2014-10-27 | 2015-04-01 | 沈阳黎明航空发动机(集团)有限责任公司 | Intermediate casing ring repairing method |
| EP2604792B1 (en) * | 2011-12-15 | 2015-11-04 | MTU Aero Engines GmbH | Method for repairing a component of a gas turbine engine and associated repaired component |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06318647A (en) * | 1993-05-07 | 1994-11-15 | Shinko Electric Ind Co Ltd | Package for optical module and its manufacture |
| EP2604792B1 (en) * | 2011-12-15 | 2015-11-04 | MTU Aero Engines GmbH | Method for repairing a component of a gas turbine engine and associated repaired component |
| CN102953058A (en) * | 2012-11-14 | 2013-03-06 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for repairing wear of inner wall of intermediate casing of engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341959A (en) * | 2018-12-10 | 2019-02-15 | 中国航发贵州黎阳航空动力有限公司 | A kind of air-tight test fixture |
| CN110643990A (en) * | 2019-09-09 | 2020-01-03 | 中国人民解放军第五七一九工厂 | Method for adjusting intermediate casing unit body to inhibit vibration of aero-engine |
| CN115041914A (en) * | 2022-06-21 | 2022-09-13 | 湖南南方通用航空发动机有限公司 | Method for repairing inner hole of casing and casing |
| CN115041914B (en) * | 2022-06-21 | 2023-08-01 | 中国航发南方工业有限公司 | Repairing method for inner hole of casing and casing |
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| Publication number | Publication date |
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| CN107745223B (en) | 2019-04-05 |
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