CN102581486B - Brush seal laser penetration dotting welding method - Google Patents
Brush seal laser penetration dotting welding method Download PDFInfo
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- CN102581486B CN102581486B CN201210024804.6A CN201210024804A CN102581486B CN 102581486 B CN102581486 B CN 102581486B CN 201210024804 A CN201210024804 A CN 201210024804A CN 102581486 B CN102581486 B CN 102581486B
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- welding
- brush
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- soldering
- dotting
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- 238000003466 welding Methods 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000035515 penetration Effects 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 54
- 238000005476 soldering Methods 0.000 claims description 51
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000009191 jumping Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000010186 staining Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
The invention discloses a brush seal laser penetration dotting welding method. On the premise of ensuring cleanness of a weldment, a workpiece is clamped and is preheated after being positioned, a focusing mirror is operated by a numerical control system to accurately rotate after tooling adjustment, a focal length is determined for aiming, dotting calibration is performed, and then welding is performed. As the energy density of laser is high, welding of high depth-to-width ratio can be realized. Welding heating is centralized, so that a welding, melting and solidifying process is fast and high in efficiency. Heat deformation of the weldment is low, weld performance is high, and a weld surface is fine in quality and high in strength. Welding parameters are easily and precisely adjusted, and additionally, integration, automation and flexibility are easily realized by a laser welding process.
Description
Technical field
The present invention relates to a kind of method for laser welding, be specifically related to a kind of brush seal laser penetration dotting welding method.
Background technology
Brush seal is one of key technology of modern advanced turbomachinery development, its advantage is mainly reflected in the operating mode of movable sealing, be widely used in the movable sealing position of aero-engine, ground gas turbine, steam turbine and compressor, can raise the efficiency significantly, create huge economic benefit.
Welding procedure is one important operation in brush envelope production process, is the quality of directly impact brush envelope, key factor attractive in appearance etc.Along with brush seal is towards safety, environmental protection, economy, reliable, durable future development, brush seal welding procedure is also gradually to full-automatic future development.As everyone knows, the prerequisite that realizes automation is that the accuracy of manufacture of parts is high, and welding deformation is little, welding position outward appearance light, smooth, so require solder technology more and more higher, and traditional welding technique can not meet the feature that product size requirement is high, sealing is strong, deflection is little.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide the brush seal laser penetration dotting welding method that a kind of speed of welding is fast, Welding Structure distortion is little, weldquality is high.
Usefulness of the present invention is:
Brush seal laser penetration dotting welding method, is characterized in that, comprises the steps:
A, brush soldering and sealing fitting clean: cleaning brush soldering and sealing fitting, guarantees that the welding portion of brush soldering and sealing fitting does not exist greasy dirt and rust staining;
B, brush soldering and sealing fitting are press-fitted: two brush soldering and sealing fittings of needs welding are press fit over together, guarantees two brush soldering and sealing fittings without weighing wounded, collide with, faying face gapless, there is not mutual rotation each other;
C, welding preheating: according to the concrete phosphorus content of brush soldering and sealing fitting, brush soldering and sealing fitting is carried out to preheating;
D, frock debugging: will brush soldering and sealing fitting clamping on laser-beam welding machine welding fixture, and guarantee through brush soldering and sealing fitting and make the welding axle excircle radical runout of its rotation be less than or equal to footpath jumping standard value;
E, focal length measurement: the real focal length of measuring laser condensing lens;
F, weld seam are got centering ready: at the circumferencial direction of brushing soldering and sealing fitting, often turn over certain angle and utilize laser dotting, observe drift condition, make bias be less than or equal to 0.25mm;
G, welding: adjust angle the release guard gas of protection gas jets, start laser-beam welding machine, along brush soldering and sealing fitting circumferencial direction, carry out batch welding.
Aforesaid brush seal laser penetration dotting welding method, is characterized in that, in above-mentioned steps b, being press-fitted range of pressure values is 2.5-3.0Mpa.
Aforesaid brush seal laser penetration dotting welding method, is characterized in that, in above-mentioned steps c, when containing carbon mass fraction <0.30%, preheat temperature is 50-150 ℃.
Aforesaid brush seal laser penetration dotting welding method, is characterized in that, in above-mentioned steps c, when being 0.30%-0.60% containing carbon mass fraction, preheat temperature is 200-500 ℃.
Aforesaid brush seal laser penetration dotting welding method, is characterized in that, in above-mentioned steps c, when containing carbon mass fraction >0.60%, preheat temperature is 400-800 ℃.
Aforesaid brush seal laser is seen through and is got welding method ready, it is characterized in that, in above-mentioned steps d, it is 0.04mm that standard value is jumped in described footpath.
Aforesaid brush seal laser is seen through and is got welding method ready, it is characterized in that, in above-mentioned steps f, the mode of above-mentioned laser dotting is:
First on brush soldering and sealing fitting, on the position of its two ends same distance of distance, utilize laser to get two anchor points, then between them, get uniformly a plurality of checkpoints, by observe the drift condition of the checkpoint of getting at every turn, the distance of checkpoint skew is side-play amount, determines concrete side-play amount.
Aforesaid brush seal laser is seen through and is got welding method ready; it is characterized in that; in above-mentioned steps g; protection gas jets spray angle is for becoming 30-45 degree with horizontal plane; need to observe the discharge scenario of protection gas situation, laser-beam welding machine; the power stability of controlling laser-beam welding machine, making shielding gas flow amount is 0.15m
3/ min, makes laser-beam welding machine power stability value be less than 3%.
Aforesaid brush seal laser is seen through and is got welding method ready, it is characterized in that, in above-mentioned steps g, at the brush soldering and sealing fitting completing a standard volume, connect continuously after welding, above-mentioned steps f is carried out in insertion, and then carry out next standard volume brush soldering and sealing fitting connect continuously welding, so circulation, until complete the welding of all brush soldering and sealing fittings.
Aforesaid brush seal laser is seen through and is got welding method ready, it is characterized in that, the number of above-mentioned standard volume is 50.
Usefulness of the present invention is: the welding that laser energy density is high, can realize high-aspect-ratio; Weld heating is concentrated, and makes welding fusing and process of setting is fast, efficiency is high; Weldment thermal deformation is little, and Weld Performance is high, and face of weld quality is good, intensity is high; Laser weld completes under atmospheric environment, and access for welding is good; Welding parameter is easy to fine adjustment; In addition, laser beam welding is also easy to realize integrated, automation, flexibility.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that brush seal laser of the present invention is seen through a specific embodiment getting welding method ready.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing, the present invention is done to concrete introduction.
Brush seal laser penetration dotting welding method comprises the steps:
Brush seal laser penetration dotting welding method, is characterized in that, comprises the steps:
A, brush soldering and sealing fitting clean: cleaning brush soldering and sealing fitting, guarantees that the welding portion of brush soldering and sealing fitting does not exist greasy dirt and rust staining.The cleaning of brush soldering and sealing fitting, main purpose is, makes it when welding, thereby do not introduce other impurity in molten bath, does not affect welding quality.
B, brush soldering and sealing fitting are press-fitted: two brush soldering and sealing fittings of needs welding are press fit over together, guarantees two brush soldering and sealing fittings without weighing wounded, collide with, faying face gapless, there is not mutual rotation each other.Being press-fitted is to make the brush soldering and sealing fitting that two needs weld carry out mechanical bond in advance, to can be clipped on laser-beam welding machine welding fixture as an integral installation.As a kind of preferred version, being press-fitted range of pressure values is 2.5-3.0Mpa.
C, welding preheating: according to the concrete phosphorus content of brush soldering and sealing fitting, brush soldering and sealing fitting is carried out to preheating.The effect of preheating is to reduce cooling velocity, softening heat affected area hardness (surpass 350HV and have crackle tendency), eliminates stress, and Crack prevention produces.
The temperature of preheating can be carried out according to carbon containing mass percents different in weldment.Concrete with reference to as follows:
Phosphorus content preheat temperature
<0.30% 50-150℃
0.30-0.60% 200-500℃
>0.60% 400-800℃
D, frock debugging: will brush soldering and sealing fitting clamping on laser-beam welding machine welding fixture, and guarantee through brush soldering and sealing fitting and make the welding axle excircle radical runout of its rotation be less than or equal to footpath jumping standard value.As a kind of preferred version, it is 0.04mm that standard value is jumped in footpath, guarantees through brush soldering and sealing fitting and makes the welding axle excircle radical runout of its rotation be less than or equal to 0.04mm.
E, focal length measurement: the real focal length of measuring laser condensing lens.Focus lamp design focal length is a definite value, but can bring wearing and tearing with use, and focal length can change, and be as the criterion with the numerical value of up-to-date confirmation.
F, weld seam are got centering ready: on brush soldering and sealing fitting, utilize laser to get ready, observe drift condition, make bias be less than or equal to 0.25mm; Particularly, first on brush soldering and sealing fitting, on the position of its two ends same distance of distance, utilize laser to get two anchor point A, D, then between them, get uniformly a plurality of checkpoint B, C, by observe the drift condition of the checkpoint of getting at every turn, the distance of checkpoint skew is side-play amount, determines concrete side-play amount.
As a kind of preferred version, the number of checkpoint is 2.
G, welding: adjust angle the release guard gas of protection gas jets, start laser-beam welding machine, along brush soldering and sealing fitting circumferencial direction, carry out batch welding.
As a kind of preferred version, in step g, protection gas jets spray angle, for become 30-45 degree with horizontal plane, needs to observe the discharge scenario of protection gas situation, laser-beam welding machine, controls the power stability of laser-beam welding machine, and making shielding gas flow amount is 0.15m
3/ min, make laser-beam welding machine power stability value be less than 3%, it should be noted is that, power stability value refers to that bonding machine adopts when welding power is for absolutely, and power during real work is compared the part that has more or reduce and expressed and be this value with percentage with the ratio of adopted power with adopted power so.
It should be noted is that, in step g, at the brush soldering and sealing fitting completing a standard volume, connect continuously after welding, above-mentioned steps f is carried out in insertion, and then carry out next standard volume brush soldering and sealing fitting connect continuously welding, so circulation, until complete the welding of all brush soldering and sealing fittings.As preferably, the number of standard volume is 50.That is to say, when welding, at the beginning of welding starts, will carry out step f, in a weld task completes, between the brush seam welding part of the standard volume of each batch, also should carry out step f, adjust and aim to guarantee welding quality.
Above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (10)
1. brush seal laser penetration dotting welding method, is characterized in that, comprises the steps:
A, brush soldering and sealing fitting clean: cleaning brush soldering and sealing fitting, guarantees that the welding portion of brush soldering and sealing fitting does not exist greasy dirt and rust staining;
B, brush soldering and sealing fitting are press-fitted: two brush soldering and sealing fittings of needs welding are press fit over together, guarantees two brush soldering and sealing fittings without weighing wounded, collide with, faying face gapless, there is not mutual rotation each other;
C, welding preheating: according to the concrete phosphorus content of brush soldering and sealing fitting, brush soldering and sealing fitting is carried out to preheating;
D, frock debugging: will brush soldering and sealing fitting clamping on laser-beam welding machine welding fixture, and guarantee through brush soldering and sealing fitting and make the welding axle excircle radical runout of its rotation be less than or equal to footpath jumping standard value;
E, focal length measurement: the real focal length of measuring laser condensing lens;
F, weld seam are got centering ready: first on brush soldering and sealing fitting, on the position of its two ends same distance of distance, utilize laser to get two anchor points, then between them, get uniformly a plurality of checkpoints, observe drift condition, make bias be less than or equal to 0.25mm;
G, welding: adjust angle the release guard gas of protection gas jets, start laser-beam welding machine, along brush soldering and sealing fitting circumferencial direction, carry out batch welding.
2. brush seal laser penetration dotting welding method according to claim 1, is characterized in that, in above-mentioned steps b, being press-fitted range of pressure values is 2.5-3.0MPa.
3. brush seal laser penetration dotting welding method according to claim 1, is characterized in that, in above-mentioned steps c, when the mass fraction <0.30% of carbon containing, preheat temperature is 50-150 ℃.
4. brush seal laser penetration dotting welding method according to claim 1, is characterized in that, in above-mentioned steps c, when the mass fraction of carbon containing is 0.30%-0.60%, preheat temperature is 200-500 ℃.
5. brush seal laser penetration dotting welding method according to claim 1, is characterized in that, in above-mentioned steps c, when the mass fraction >0.60% of carbon containing, preheat temperature is 400-800 ℃.
6. brush seal laser penetration dotting welding method according to claim 1, is characterized in that, in above-mentioned steps d, it is 0.04mm that standard value is jumped in described footpath.
7. brush seal laser penetration dotting welding method according to claim 1, is characterized in that, in above-mentioned steps f, the mode of above-mentioned laser dotting is:
First on brush soldering and sealing fitting, on the position of its two ends same distance of distance, utilize laser to get two anchor points, then between them, get uniformly a plurality of checkpoints, by observe the drift condition of the checkpoint of getting at every turn, the distance of checkpoint skew is side-play amount, determines concrete side-play amount.
8. brush seal laser penetration dotting welding method according to claim 1; it is characterized in that; in above-mentioned steps g; protection gas jets spray angle is for becoming 30-45 degree with horizontal plane; need to observe the discharge scenario of protection gas situation, laser-beam welding machine; the power stability of controlling laser-beam welding machine, making shielding gas flow amount is 0.15m
3/ min, makes laser-beam welding machine power stability value be less than 3%.
9. according to the brush seal laser penetration dotting welding method described in claim 1 to 8 any one, it is characterized in that, in above-mentioned steps g, at the brush soldering and sealing fitting completing a standard volume, carry out after continuous welding, above-mentioned steps f is carried out in insertion, and then carry out next standard volume brush soldering and sealing fitting carry out continuous welding, so circulation, until complete the welding of all brush soldering and sealing fittings.
10. brush seal laser penetration dotting welding method according to claim 9, is characterized in that, the number of above-mentioned standard volume is 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024804.6A CN102581486B (en) | 2012-02-06 | 2012-02-06 | Brush seal laser penetration dotting welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024804.6A CN102581486B (en) | 2012-02-06 | 2012-02-06 | Brush seal laser penetration dotting welding method |
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| Publication Number | Publication Date |
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| CN102581486A CN102581486A (en) | 2012-07-18 |
| CN102581486B true CN102581486B (en) | 2014-08-20 |
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| CN201210024804.6A Expired - Fee Related CN102581486B (en) | 2012-02-06 | 2012-02-06 | Brush seal laser penetration dotting welding method |
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| DE102014017921B4 (en) | 2014-12-04 | 2017-10-12 | Audi Ag | Component arrangement and method for producing the component assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1209385A2 (en) * | 2000-11-27 | 2002-05-29 | Eagle Engineering Aerospace Co., Ltd. | Brush seal device |
| EP1331423A3 (en) * | 2002-01-25 | 2004-01-21 | Cross Manufacturing Company (1938) Limited | A brush seal element |
| CN1598272A (en) * | 2003-09-19 | 2005-03-23 | Snecma发动机公司 | Gas turbine brush seal arrangement for cabin air supply |
| CN1988210A (en) * | 2005-12-23 | 2007-06-27 | 比亚迪股份有限公司 | Welding method for lid and shell mouth of top welding lithium ion battery |
| CN201807837U (en) * | 2010-09-15 | 2011-04-27 | 江苏透平密封高科技有限公司 | Laser welding machine suitable for brush seal |
| CN102296994A (en) * | 2011-08-03 | 2011-12-28 | 上海电气电站设备有限公司 | Manufacturing technique for brush type steam seal for steam turbines |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7000923B2 (en) * | 2004-01-09 | 2006-02-21 | United Technologies Corporation | Quick build brush seals |
-
2012
- 2012-02-06 CN CN201210024804.6A patent/CN102581486B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1209385A2 (en) * | 2000-11-27 | 2002-05-29 | Eagle Engineering Aerospace Co., Ltd. | Brush seal device |
| EP1331423A3 (en) * | 2002-01-25 | 2004-01-21 | Cross Manufacturing Company (1938) Limited | A brush seal element |
| CN1598272A (en) * | 2003-09-19 | 2005-03-23 | Snecma发动机公司 | Gas turbine brush seal arrangement for cabin air supply |
| CN1988210A (en) * | 2005-12-23 | 2007-06-27 | 比亚迪股份有限公司 | Welding method for lid and shell mouth of top welding lithium ion battery |
| CN201807837U (en) * | 2010-09-15 | 2011-04-27 | 江苏透平密封高科技有限公司 | Laser welding machine suitable for brush seal |
| CN102296994A (en) * | 2011-08-03 | 2011-12-28 | 上海电气电站设备有限公司 | Manufacturing technique for brush type steam seal for steam turbines |
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| CN102581486A (en) | 2012-07-18 |
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Owner name: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY CO., LTD. |
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Address after: 210046, No. 108 East, Gan Jia, Qixia District, Jiangsu, Nanjing Patentee after: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY Co.,Ltd. Address before: 210046, No. 108 East, Gan Jia, Qixia District, Jiangsu, Nanjing Patentee before: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY Co.,Ltd. |
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Inventor after: Li Zhongyue Inventor after: Zuo Fei Inventor after: Sun Jiajing Inventor after: Shi Weiwei Inventor before: Li Zhongyue Inventor before: Sun Jiajing Inventor before: Shi Weiwei |
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Effective date of registration: 20170509 Address after: 116600 No. 723, block B, Taihua Hotel, Dalian Free Trade Zone, Liaoning Patentee after: Dalian Free Trade Zone Huahong Industrial Technology Co.,Ltd. Address before: 210046, No. 108 East, Gan Jia, Qixia District, Jiangsu, Nanjing Patentee before: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY Co.,Ltd. |
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