CN202411743U - Mold cavity supporting device for reducing welding deformation of hollow stationary blade - Google Patents
Mold cavity supporting device for reducing welding deformation of hollow stationary blade Download PDFInfo
- Publication number
- CN202411743U CN202411743U CN2011205726543U CN201120572654U CN202411743U CN 202411743 U CN202411743 U CN 202411743U CN 2011205726543 U CN2011205726543 U CN 2011205726543U CN 201120572654 U CN201120572654 U CN 201120572654U CN 202411743 U CN202411743 U CN 202411743U
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- China
- Prior art keywords
- die cavity
- blade
- mold cavity
- welding deformation
- stationary blade
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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.)
- Expired - Lifetime
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Abstract
The utility model provides a mold cavity supporting device for reducing welding deformation of a hollow stationary blade. The mold cavity supporting device can effectively support a hollow mold cavity of a blade when the leading edge and the trailing edge of the blade are welded, thereby reducing the welding deformation of the blade. The mold cavity supporting device is characterized by combining a plurality of mold cavity supporting blocks, wherein the outer combined mold surfaces of the mold cavity supporting blocks are tallied with the inner mold surfaces of blades to be welded and machined.
Description
Technical field
The utility model relates to hollow shelf class stator blade processing of leaves technical field, is specially a kind of die cavity bracing or strutting arrangement that is used to reduce the hollow stationary blade welding deformation.
Background technology
Hollow shelf class stator blade blade is to be welded by 2 two punching press plates of inner arc plate 1 and back of the body arc plate; The zone of its welding is whole leading edge 3 and lagging edge 4, sees Fig. 1, and this type of blade adopts in the process that common process method welds owing to the commissure heat build-up produces a large amount of thermal stress; Simultaneously since blade this as hollow blade; So thermal stress can cause the irregular deformation of whole blade profile, and because therefore this kind irregular deformation irregularities is difficult to carry out treatment for correcting.
Summary of the invention
To the problems referred to above, the utility model provides a kind of die cavity bracing or strutting arrangement that is used to reduce the hollow stationary blade welding deformation, and it can play effective supporting at blade hollow die cavity to blade when the vapour side weld connects, and reduces the welding deformation of blade.
Its technical scheme is such, it is characterized in that: it is combined by a plurality of die cavity back-up blocks, and profile is agreed with in the combination outer mold surface of said a plurality of die cavity back-up blocks and the blade of processing to be welded.
It is further characterized in that: the end, connection composition surface of each said die cavity back-up block is provided with draw-in groove and joint, in said a plurality of die cavity back-up blocks, amalgamation is connected with joint through said draw-in groove between adjacent two die cavity back-up blocks.
Before the welding of hollow stationary blade inner arc plate and back of the body arc plate, the utility model is filled in the interior die cavity of hollow stationary blade; Its beneficial effect is: it is combined by a plurality of die cavity back-up blocks; And profile is agreed with in the combination outer mold surface of a plurality of die cavity back-up blocks and the blade of processing to be welded; Can play effective supporting to the interior die cavity of hollow stationary blade, thereby prevent in the blade, a large amount of thermal stress of producing during the welding of back of the body arc plate are to the influence of blade profile, reduce the blade profile distortion; It is combined by a plurality of die cavity back-up blocks, and amalgamation is connected with joint through draw-in groove between the adjacent die cavity back-up block, can fill in die cavity and taking-up easily in the hollow stationary blade during use apace, and is simple in structure, easy to use.
Description of drawings
Fig. 1 is the welding position sketch map of hollow shelf class stator blade blade concavity plate and outer arc plate;
Fig. 2 for the utility model die cavity bracing or strutting arrangement of packing in the die cavity in the hollow stationary blade after sketch map;
Fig. 3 is the die cavity support device structure sketch map of the utility model;
Fig. 4 is that each die cavity back-up block amalgamation of the die cavity bracing or strutting arrangement of utility model connects sketch map.
The specific embodiment
See Fig. 2, Fig. 3 and Fig. 4; It is combined the utility model by a plurality of die cavity back-up blocks 6; The number of die cavity back-up block 6 is confirmed according to the total effective length of blade; The die cavity back-up block is provided with five in the present embodiment, and profile is agreed with in the combination outer mold surface of five die cavity back-up blocks 6 and the blade of processing to be welded.The end, connection composition surface of each die cavity back-up block 6 is provided with draw-in groove 5 and joint 7, and 7 amalgamations are connected with joint through draw-in groove 5 between adjacent two die cavity back-up blocks 6.In order to guarantee that die cavity has enough support forces in 6 pairs of blades of die cavity back-up block, die cavity back-up block 6 is processed by stainless steel, can select stainless steel for use No. 45, and modified HRC hardness is 28～32.
When the utility model device is used for the hollow stationary blade inner arc plate and carries on the back the welding of arc plate; At first the blade concavity plate 1 and the spot welding of carrying out into and out of the vapour limit of back of the body arc plate 2 are located; Splicing each die cavity back-up block 6 of packing into successively in the hollow die cavity of blade is seen Fig. 2 then, carries out the weld job of blade into and out of the vapour limit to the whole blade weld jig of packing into again; Welding finishes and treats fully to take off blade after the cooling, at last said die cavity bracing or strutting arrangement is taken out in the blade die cavity.
Claims (2)
1. die cavity bracing or strutting arrangement that is used to reduce the hollow stationary blade welding deformation, it is characterized in that: it is combined by a plurality of die cavity back-up blocks, and profile is agreed with in the combination outer mold surface of said a plurality of die cavity back-up blocks and the blade of processing to be welded.
2. a kind of die cavity bracing or strutting arrangement that is used to reduce the hollow stationary blade welding deformation according to claim 1; It is characterized in that: the end, connection composition surface of each said die cavity back-up block is provided with draw-in groove and joint, in said a plurality of die cavity back-up blocks, amalgamation is connected with joint through said draw-in groove between adjacent two die cavity back-up blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205726543U CN202411743U (en) | 2011-12-31 | 2011-12-31 | Mold cavity supporting device for reducing welding deformation of hollow stationary blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205726543U CN202411743U (en) | 2011-12-31 | 2011-12-31 | Mold cavity supporting device for reducing welding deformation of hollow stationary blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202411743U true CN202411743U (en) | 2012-09-05 |
Family
ID=46736537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205726543U Expired - Lifetime CN202411743U (en) | 2011-12-31 | 2011-12-31 | Mold cavity supporting device for reducing welding deformation of hollow stationary blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202411743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658939A (en) * | 2013-12-15 | 2014-03-26 | 无锡透平叶片有限公司 | Method for welding hollow static blade body and inner cavity supporting board of turbine |
| CN103600182B (en) * | 2011-12-31 | 2016-12-14 | 无锡透平叶片有限公司 | A kind of method controlling hollow stationary blade welding deformation and tailored version lumen-supporting devices |
-
2011
- 2011-12-31 CN CN2011205726543U patent/CN202411743U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600182B (en) * | 2011-12-31 | 2016-12-14 | 无锡透平叶片有限公司 | A kind of method controlling hollow stationary blade welding deformation and tailored version lumen-supporting devices |
| CN103658939A (en) * | 2013-12-15 | 2014-03-26 | 无锡透平叶片有限公司 | Method for welding hollow static blade body and inner cavity supporting board of turbine |
| CN103658939B (en) * | 2013-12-15 | 2016-06-15 | 无锡透平叶片有限公司 | A kind of welding method of hollow stationary blade of steam turbine body and inner chamber gripper shoe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |