CN106513976B - A kind of double disc turbine disk pressurization welding methods - Google Patents
A kind of double disc turbine disk pressurization welding methods Download PDFInfo
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- CN106513976B CN106513976B CN201611139377.0A CN201611139377A CN106513976B CN 106513976 B CN106513976 B CN 106513976B CN 201611139377 A CN201611139377 A CN 201611139377A CN 106513976 B CN106513976 B CN 106513976B
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- graphite
- double disc
- blank
- disc turbine
- pressurization
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/023—Thermo-compression bonding
- B23K20/026—Thermo-compression bonding with diffusion of soldering material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to a kind of double disc turbine disks pressurization welding methods, graphite pressure head (1), upper padding plate (2), graphite bearing column (3), lower bolster (4), graphite base (5), multiple graphite force-bearing pieces (6) and double disc turbine disk blanks (7) are applied in method；Double disc turbine disk blank (7) structures are as shown in Fig. 2, double disc turbine disk blanks are two blank discs symmetrical above and below；It include girth weld 12, pressurization force section 13 and the easily-deformable portion of non-solder (10,11) in two blank discs；And method includes six steps.Double disc turbine disk welding deformation amounts are controlled by graphite block and stainless steel substrates etc., structure is simple, is convenient to mount and dismount, interchangeability and better economy.
Description
Technical field:
Aero-engine, gas turbine wheel disk manufacture field.
Background technique:
Double disc turbine disks are a kind of novel aero-engine turbine disk structures, which has bearing capacity
By force, thermal inertia and mechanical inertia are small, light-weight feature, can effectively realize the loss of weight of engine turbine modular construction.Usually
By two and half disks of left and right by being formed by welding, the technology difficulty for manufacturing and welding is big.
Common double disc turbine disks generally use the stressed diffusion connection of high-temperature vacuum, due to having one inside disk body
A hollow cavity, can not be reprocessed after welding, therefore its structure size must process before welding in place, structure shape
The particularity of formula causes welding procedure difficulty big, and since high-temperature soldering unavoidably will lead to part deformation, therefore, it is necessary to design
A kind of apparatus for welding and positioning ensures that the deformation of the turbine disk is as small as possible, while needing to guarantee that the connection of welding is reliable.
Summary of the invention:
The present invention relates to a kind of double disc turbine disks pressurization welding methods, pass through graphite block and stainless steel substrates etc. and control double spokes
Plate turbine disk welding deformation amount, structure is simple, is convenient to mount and dismount, interchangeability and better economy.
A kind of double disc turbine disk pressurization welding methods are provided, apply graphite pressure head, upper padding plate, graphite load in method
Column, lower bolster, graphite base, multiple graphite force-bearing pieces and double disc turbine disk blanks；
Double disc turbine disk blahk structures, double disc turbine disk blanks are two blank discs symmetrical above and below；Two
It include girth weld, pressurization force section and the easily-deformable portion of non-solder in a blank disc；
The method includes the following steps:
Step 1: graphite base, multiple graphite bearing columns and lower bolster are placed in pressurization soldering furnace, so that lower bolster lid
On graphite base, multiple graphite bearing columns are placed on lower bolster, and multiple graphite bearing columns cross welding region；
Step 2: two blank disc upper and lower positions of double disc turbine disk blanks are symmetrically placed in pressurization soldering furnace,
So that two blank discs are located in welding region, and the pressurization force section of lower blank is pressed on lower bolster；
Step 3: by being supported between the easily-deformable portion of non-solder that graphite force-bearing piece is placed in upper and lower blank disc；
Step 4: covering upper padding plate on multiple graphite bearing columns of welding region and the pressurization force section of upper blank；
Step 5: graphite pressure head is pressed on upper padding plate in advance；
Step 6: carrying out pressurization welding to upper and lower blank according to pressurization welding parameter.
Further, graphite force-bearing piece includes outer rim graphite block and inner ring force-bearing piece.
Further, graphite bearing column includes disk edge bearing column and core bearing column.
Technical effect:
A) structure is simple, reliable, Yi Shixian；
B) it can be effectively controlled the deformation that double disc turbine disk welding generate, it is ensured that be welded successfully.
Detailed description of the invention:
Scheme of installation is welded in the bis- disc turbine pan burners of Fig. 1
The bis- disc turbine disk blahk structures of Fig. 2
Wherein: 1- graphite pressure head；2- upper padding plate；3- graphite bearing column；4- lower bolster；5- graphite base；6- outer rim graphite
Block；The bis- disc turbine disk blanks of 7-；8- inner ring force-bearing piece；9- core bearing column, the easily-deformable portion of 10- non-solder；11- non-solder is easy
Variant part；12- girth weld；13- pressurization force section.
Specific embodiment:
Specific a kind of double disc turbine disks pressurization welding methods, as shown in Figure 1, applying graphite pressure head 1, upper padding plate in method
2, graphite bearing column 3, lower bolster 4, multiple graphite bases 5, graphite force-bearing piece and double disc turbine disk blanks 7；
Double 7 structures of disc turbine disk blank are as shown in Fig. 2, double disc turbine disk blanks are symmetrical above and below two
Blank disc；It include girth weld 12, pressurization force section 13 and the easily-deformable portion 10,11 of non-solder in two blank discs；
The method includes the following steps:
Step 1: graphite base 5, multiple graphite bearing columns 3 and lower bolster 4 are placed in pressurization soldering furnace, so that underlay
Plate 4 covers on graphite base, and multiple graphite bearing columns 3 are placed on lower bolster 4, and, multiple graphite bearing columns 3 cross welding section
Domain；
Step 2: two blank disc upper and lower positions of double disc turbine disk blanks are symmetrically placed in pressurization soldering furnace,
So that two blank discs are located in welding region, and the pressurization force section 13 of lower blank is pressed on lower bolster；
Step 3: by being supported between the easily-deformable portion of non-solder that graphite force-bearing piece is placed in upper and lower blank disc；
Step 4: covering upper padding plate 2 in multiple graphite bearing columns 3 of welding region and the pressurization force section 13 of upper blank
On；
Step 5: graphite pressure head 1 is pressed on upper padding plate in advance；
Step 6: carrying out pressurization welding to upper and lower blank according to pressurization welding parameter.
Further, graphite force-bearing piece includes outer rim graphite block 6 and inner ring force-bearing piece 8.
Further, graphite bearing column 3 includes disk edge bearing column and core bearing column 9.
The material of graphite pressure head 1, bearing column 3, graphite base 5, outer rim graphite block 6, inner ring force-bearing piece 8, core bearing column 9 etc.
Material is the graphite of high-purity, high purity graphite elevated temperature strength with higher, the small feature of thermal deformation, in the weldering of double disc turbine disks
Jointing temp nearby has preferable mechanical property.Upper padding plate 2 and lower bolster 4 are used to balance what double disc disks were subject on along the circumferential direction
Welding pressure is located at the two sides up and down of weldment, is stainless steel material, is coated with solder resist, above to prevent from welding
It bonds together in journey with other parts.
Bearing column 3, outer rim graphite block, inner ring force-bearing piece 8 may each be piecemeal or whole coil structures, and core bearing column 9 is circle
Column structure.
Working principle
The graphite block for being mainly characterized by joined control deformation in soldering furnace of this method, in the welding process, stone
Welding pressure is uniformly applied on the pressurization force section 13 of double disc disk blanks by black pressure head 1 by upper padding plate 2, is welded on high temperature
It is carried out under vacuum environment, therefore, under the action of pressure and temperature, a degree of deformation, root can occur for double disc disk blanks 7
It is required according to the difference to 12 mechanical property of disk edge girth weld, different outer rim graphite force-bearing piece 6 and inner ring can be designed and held
The thickness of power block 8 controls the disk edge of double disc disk blanks 7 and the deflection of core position to play control in the welding process
Purpose.Graphite bearing column 3 and core bearing column 9 then play the role of being effectively protected to double disc disk blanks 7, prevent in big weldering
It connects under pressure, double disc disk blanks 7 cause welding to fail by 1 be collapsed of graphite pressure head.
Claims (3)
- The welding method 1. a kind of double disc turbine disks pressurize, applies graphite pressure head (1), upper padding plate (2), graphite bearing column in method (3), lower bolster (4), multiple graphite bases (5), graphite force-bearing piece and double disc turbine disk blanks (7)；Double disc turbine disk blank (7) structures, double disc turbine disk blanks are two blank discs symmetrical above and below；Two It include girth weld (12), pressurization force section (13) and the easily-deformable portion of non-solder (10,11) in blank disc；The method includes the following steps:Step 1: graphite base (5), multiple graphite bearing columns (3) and lower bolster (4) are placed in pressurization soldering furnace, so that under Backing plate (4) covers on graphite base (5), and multiple graphite bearing columns (3) are placed on lower bolster (4), and, multiple graphite bearing columns (3) welding region is crossed；Step 2: two blank disc upper and lower positions of double disc turbine disk blanks are symmetrically placed in pressurization soldering furnace, so that Two blank discs are located in welding region, and the pressurization force section (13) of lower blank is pressed on lower bolster；Step 3: by being supported between the easily-deformable portion of non-solder that graphite force-bearing piece is placed in upper and lower blank disc；Step 4: upper padding plate (2) is covered multiple graphite bearing columns (3) in welding region and the pressurization force section (13) of upper blank On；Step 5: graphite pressure head (1) is pressed on upper padding plate in advance；Step 6: carrying out pressurization welding to upper and lower blank according to pressurization welding parameter.
- The welding method 2. a kind of double disc turbine disks according to claim 1 pressurize, it is characterised in that: graphite force-bearing piece packet Include outer rim graphite block (6) and inner ring force-bearing piece (8).
- The welding method 3. a kind of double disc turbine disks according to claim 1 pressurize, it is characterised in that: graphite bearing column It (3) include disk edge bearing column and core bearing column (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139377.0A CN106513976B (en) | 2016-12-12 | 2016-12-12 | A kind of double disc turbine disk pressurization welding methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139377.0A CN106513976B (en) | 2016-12-12 | 2016-12-12 | A kind of double disc turbine disk pressurization welding methods |
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| Publication Number | Publication Date |
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| CN106513976A CN106513976A (en) | 2017-03-22 |
| CN106513976B true CN106513976B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611139377.0A Active CN106513976B (en) | 2016-12-12 | 2016-12-12 | A kind of double disc turbine disk pressurization welding methods |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112276331B (en) * | 2020-10-16 | 2022-03-15 | 中国航发四川燃气涡轮研究院 | Welding method for double-spoke-plate turbine disk |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2228217A (en) * | 1989-02-07 | 1990-08-22 | Mtu Muenchen Gmbh | A method for connecting turbine wheel discs |
| US5961287A (en) * | 1997-09-25 | 1999-10-05 | United Technologies Corporation | Twin-web rotor disk |
| CN106014485A (en) * | 2016-07-01 | 2016-10-12 | 中航空天发动机研究院有限公司 | Flow guide and cooling structure applied to double-wheel-disc turbine disk cavity |
| CN106089310A (en) * | 2016-07-01 | 2016-11-09 | 中航空天发动机研究院有限公司 | A kind of double disc turbine disk of fiber reinforcement improving disc bearing capacity |
-
2016
- 2016-12-12 CN CN201611139377.0A patent/CN106513976B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2228217A (en) * | 1989-02-07 | 1990-08-22 | Mtu Muenchen Gmbh | A method for connecting turbine wheel discs |
| US5961287A (en) * | 1997-09-25 | 1999-10-05 | United Technologies Corporation | Twin-web rotor disk |
| CN106014485A (en) * | 2016-07-01 | 2016-10-12 | 中航空天发动机研究院有限公司 | Flow guide and cooling structure applied to double-wheel-disc turbine disk cavity |
| CN106089310A (en) * | 2016-07-01 | 2016-11-09 | 中航空天发动机研究院有限公司 | A kind of double disc turbine disk of fiber reinforcement improving disc bearing capacity |
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| CN106513976A (en) | 2017-03-22 |
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Address after: 610500 Xindu Xuefu Road, Xindu District, Chengdu, Sichuan Patentee after: AECC SICHUAN GAS TURBINE Research Institute Address before: 621703 P.O. Box 305, Mianyang City, Sichuan Province Patentee before: CHINA GAS TURBINE EST |