CN101444863A - Brazing method for repairing fuel line fault - Google Patents
Brazing method for repairing fuel line fault Download PDFInfo
- Publication number
- CN101444863A CN101444863A CNA2008101480392A CN200810148039A CN101444863A CN 101444863 A CN101444863 A CN 101444863A CN A2008101480392 A CNA2008101480392 A CN A2008101480392A CN 200810148039 A CN200810148039 A CN 200810148039A CN 101444863 A CN101444863 A CN 101444863A
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- CN
- China
- Prior art keywords
- induction coil
- brazing
- repairing
- induction
- fuel line
- 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.)
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Abstract
The invention discloses a brazing method for repairing fuel line fault. The invention avoids the defects of expensive rotary brazing device in a furnace, complicated technology and long repairing period in the prior art. The method needs few devices, low repairing cost and short repairing period. The invention is implemented by the following technical proposal. An induction coil matched with an annular main pipe of main and minor oil ways as well as a nozzle is firstly prepared; a brazing technology of partial induction is established; the induction coil is fixed near a fault fuel line; the induction coil is induced and heated by using an ordinary high-frequency induction welder, and partial brazing is carried out for welding lines. The brazing method can partially induce, heat, braze and repair fuel leakage sections of fuel main pipe just by using the induction coil and an ordinary high-frequency induction welder.
Description
Technical field
The present invention is about the method for welding of repairing fuel line fault, particularly about repairing the method for welding of aero-engine fuel manifold fault.
Background technology
By the aero-engine fuel manifold that tens nozzles and major and minor oil circuit ring main are formed, normally adopt soldering to be connected between its nozzle and the ring main.The reparation of its leakage of oil segment fault generally is that the rotation soldering is carried out in the employing stove identical with manufacturing.When carrying out soldering, although be, all must remove all the protecting of fuel manifold periphery and shield and glass tape local soldering, could carry out the integral body heating to fuel manifold and carry out soldering.The weak point of this method is that equipment investment is big, (rotation brazing equipment costliness in the stove, nearly 1,000,000 yuan), single-piece rehabilitation cost height (reaching 50,000 yuan), repairing efficiency long (nearly 7 days), and complex process.
Summary of the invention
It is little to the purpose of this invention is to provide a kind of equipment investment, and rehabilitation cost is low, and repairing efficiency is short, the method for welding of the simple repairing fuel line fault of technology.
Purpose of the present invention can be achieved by following technical proposals.The method for welding of a kind of repairing fuel line fault that the present invention proposes has following technical characterictic:
Prepare an induction coil that is complementary with major-minor oil circuit ring pipe and nozzle, and formulate local induction brazing technology, above-mentioned induction coil has been fixed near the fault fuel pipe, use common high-frequency induction welder that induction coil is implemented eddy-current heating, and butt welded seam has been implemented local soldering.
The present invention has following beneficial effect than prior art.
Compare with rotation soldering in the stove, only need to remove protecting of leakage of oil section and shield and glass tape, only with induction coil and the logical high-frequency induction welder of a Daepori, local induction brazing can be repaired to its fuel manifold leakage of oil section.Not only dwindle the heat-affected zone greatly, reduced expense and time that screen and glass tape are protected in whole removals and recovery, and the equipment less investment, rehabilitation cost is low.Shorten repairing efficiency greatly, reduced rehabilitation cost.Thereby avoided rotation brazing equipment costliness in the prior art stove, complex process, the defective that repairing efficiency is long.
The specific embodiment mode
According to the present invention, at first prepare the induction coil of " cucurbit " shape.And formulation technological process: make induction coil-soldering-weld seam Non-Destructive Testing-hydraulic leakage inspection.By the local induction brazing technology of formulating, above-mentioned induction coil has been fixed near the fault fuel pipe, clearance control is at 3～5mm, use common high-frequency induction welder that coil is implemented eddy-current heating, by regulating the high-frequency induction welder output current control induction coil rate of heat addition, and adopting infrared radiation thermometer monitoring heating-up temperature, butt welded seam is implemented local soldering.Use the hydraulic leakage inspection at last, and recover glass tape and protect screen.
Claims (2)
1. the method for welding of a repairing fuel line fault has following technical characterictic:
Prepare an induction coil that is complementary with major-minor oil circuit ring pipe and nozzle, and formulate local induction brazing technology, above-mentioned induction coil has been fixed near the fault fuel pipe, use common high-frequency induction welder that induction coil is implemented eddy-current heating, and butt welded seam has been implemented local soldering.
2. by the method for welding of the described repairing fuel line fault of claim 1, it is characterized in that it is shaped as " cucurbit " type described induction coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101480392A CN101444863A (en) | 2008-12-26 | 2008-12-26 | Brazing method for repairing fuel line fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101480392A CN101444863A (en) | 2008-12-26 | 2008-12-26 | Brazing method for repairing fuel line fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101444863A true CN101444863A (en) | 2009-06-03 |
Family
ID=40740911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101480392A Pending CN101444863A (en) | 2008-12-26 | 2008-12-26 | Brazing method for repairing fuel line fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101444863A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290704A (en) * | 2015-11-11 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for replacing spraying rod and lug seat of stressing main pipe |
| CN105414880A (en) * | 2016-01-06 | 2016-03-23 | 中车南京浦镇车辆有限公司 | Scratch repair process for air inlets of air springs of bogies |
| CN106984878A (en) * | 2017-01-18 | 2017-07-28 | 江苏丰信航空设备制造有限公司 | A kind of aircraft engine oil pipe pipeline silver brazing method |
-
2008
- 2008-12-26 CN CNA2008101480392A patent/CN101444863A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290704A (en) * | 2015-11-11 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for replacing spraying rod and lug seat of stressing main pipe |
| CN105414880A (en) * | 2016-01-06 | 2016-03-23 | 中车南京浦镇车辆有限公司 | Scratch repair process for air inlets of air springs of bogies |
| CN106984878A (en) * | 2017-01-18 | 2017-07-28 | 江苏丰信航空设备制造有限公司 | A kind of aircraft engine oil pipe pipeline silver brazing method |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090603 |