CN103567265A - Method for using urea as oil pump guide pipe bending filler - Google Patents
Method for using urea as oil pump guide pipe bending filler Download PDFInfo
- Publication number
- CN103567265A CN103567265A CN201210256745.5A CN201210256745A CN103567265A CN 103567265 A CN103567265 A CN 103567265A CN 201210256745 A CN201210256745 A CN 201210256745A CN 103567265 A CN103567265 A CN 103567265A
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- Prior art keywords
- pipe
- urea
- oil pump
- bending
- pump guide
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- 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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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a pipe bending filling material of an oil pump guide pipe part used on an aero-engine and a use method. Urea is used as an oil pump guide pipe bending filler, an oil pump guide pipe needing bending is fed by a needed length, one end of the pipe is plugged, urea liquid at the temperature of 140+/-12 DEG C is poured into the pipe, the pipe is cooled to the room temperature in air and then bent into a needed shape on a pipe bender, and the formed pipe is soaked in clear water for more than 4 hours, so that the urea is completely dissolved. As the urea is used as the pipe bending filling material, by the aid of the process method, the bent pipe cannot wrinkle or crack, is fine in elliptical shape and has high use and popularization values.
Description
Technical field
The present invention relates to a kind of bent tube technique, particularly relate to the process of oil pump for engine conduit elbows.
Background technology
The oil pump conduit using in aero-engine, owing to mostly being three dimensions shape, the flexural deformation degree of conduit is large, and the ovalizing deflection of crooked position requires very strict, original processing method is to add material such as filled stone diamond stone, rosin, alum in bend pipe in man-hour, then carries out bending.In processing often there is the defects such as crackle, seriously wrinkling, elliptical shape is serious overproof in guiding-tube bend position.By analysis, the main cause that causes these defects is that these packing materials can not meet instructions for use, the crushing resistance of packing material, compactness, can be with performance that after pipe flexural deformation, pressurized, volume remains unchanged etc., directly affect the key of Tube Bending Deformation position quality, therefore need to find a kind of satisfactory packing material.
Summary of the invention
The present invention is directed to above problem, bend pipe packing material and the using method of the oil pump conduit detail using in a kind of aero-engine is provided.
The present invention adopts urea as oil pump guiding-tube bend filler, concrete grammar is to the length needing by the oil pump conduit blanking of needs bending, block one end of pipe, the urea liquid of 140 ℃ ± 12 ℃ is poured in pipe, in air, be cooled to room temperature, then on bending machine, tube bending is arrived to the shape needing, the pipe after moulding is put into clear water and is soaked more than 4 hours, so that urea dissolves completely.
Use urea of the present invention as bend pipe, to add the packing material of pipe in man-hour, adopt process provided by the invention, the pipe of brake forming is wrinkle resistant, does not occur that crackle, elliptical shape are good, have higher use promotional value.
The specific embodiment
Embodiment 1:
Adopt the method for the invention to process the pipe of 1Cr18Ni9 material, pipe specification 22 * 1, radius of curvature R 22.
When packing material is selected rosin, quartz, completely rear detection, wrinkling 2mm, deviation from circular from 3.6mm, result is defective.
Use urea of the present invention instead as packing material, the urea that is melted to 140 ℃ is inserted in pipe to be bent, after brake forming, detect, without wrinkling, deviation from circular from 0.5mm, result is high-quality.
Claims (2)
- One kind with urea the method as oil pump guiding-tube bend filler, it is characterized in that: the length by the oil pump conduit blanking of needs bending to needs, block one end of pipe, urea liquid is poured in pipe, in air, be cooled to room temperature, then on bending machine, tube bending is arrived to the shape needing, the pipe after moulding is put into clear water and is soaked more than 4 hours.
- 2. the urea of using according to claim 1, as the method for oil pump guiding-tube bend filler, is characterized in that: the urea liquid temperature of use is controlled at 140 ℃ ± 12 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210256745.5A CN103567265A (en) | 2012-07-24 | 2012-07-24 | Method for using urea as oil pump guide pipe bending filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210256745.5A CN103567265A (en) | 2012-07-24 | 2012-07-24 | Method for using urea as oil pump guide pipe bending filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103567265A true CN103567265A (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210256745.5A Pending CN103567265A (en) | 2012-07-24 | 2012-07-24 | Method for using urea as oil pump guide pipe bending filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103567265A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478551A (en) * | 2015-11-20 | 2016-04-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Metal thin-walled tube cold-bending processing filler and application method thereof |
| CN109848737A (en) * | 2019-03-12 | 2019-06-07 | 四川明日宇航工业有限责任公司 | A kind of fill process suitable for netted honeycomb class part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU548337A1 (en) * | 1964-05-26 | 1977-02-28 | Filler for pipe bending | |
| JP2005199288A (en) * | 2004-01-13 | 2005-07-28 | Yamamoto Suiatsu Kogyosho:Kk | Pipe bender |
| CN101214516A (en) * | 2007-12-27 | 2008-07-09 | 李春江 | Technique for producing refrigeration evaporator winding pipe of refrigerator refrigerating device |
| CN101468367A (en) * | 2007-12-28 | 2009-07-01 | 天津市津宝乐器有限公司 | Method for processing tube number winding pipe |
-
2012
- 2012-07-24 CN CN201210256745.5A patent/CN103567265A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU548337A1 (en) * | 1964-05-26 | 1977-02-28 | Filler for pipe bending | |
| JP2005199288A (en) * | 2004-01-13 | 2005-07-28 | Yamamoto Suiatsu Kogyosho:Kk | Pipe bender |
| CN101214516A (en) * | 2007-12-27 | 2008-07-09 | 李春江 | Technique for producing refrigeration evaporator winding pipe of refrigerator refrigerating device |
| CN101468367A (en) * | 2007-12-28 | 2009-07-01 | 天津市津宝乐器有限公司 | Method for processing tube number winding pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478551A (en) * | 2015-11-20 | 2016-04-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Metal thin-walled tube cold-bending processing filler and application method thereof |
| CN109848737A (en) * | 2019-03-12 | 2019-06-07 | 四川明日宇航工业有限责任公司 | A kind of fill process suitable for netted honeycomb class part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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 |
Application publication date: 20140212 |