CN103599961B - A kind of profile correction method of hollow shelf class stator blade - Google Patents
A kind of profile correction method of hollow shelf class stator blade Download PDFInfo
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- CN103599961B CN103599961B CN201110458789.1A CN201110458789A CN103599961B CN 103599961 B CN103599961 B CN 103599961B CN 201110458789 A CN201110458789 A CN 201110458789A CN 103599961 B CN103599961 B CN 103599961B
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Abstract
The invention provides a kind of profile correction method of hollow shelf class stator blade, it solves the problem easily causing blade secondary deformation, calibration result difference existed in existing mold bearing calibration.It comprises mould and corrects, Correction Die is installed on forcing press, it is characterized in that: before mould corrects, be full of packing material in the die cavity inside of hollow shelf class stator blade, then blade is positioned in Correction Die, utilizes forcing press to carry out mould correction to Correction Die applying pressure to blade profile, the inner packing material of removal blade die cavity after correction completes, blade can enter rear road manufacturing procedure.
Description
Technical field
The present invention relates to the processing technique field of hollow shelf class stator blade blade, be specially a kind of profile correction method of hollow shelf class stator blade.
Background technology
Hollow shelf class stator blade is welded by after inner arc plate and back of the body arc plate two boards material respectively punching press, such blade inner arc plate profile 1 in welding process easily produces outside bulging deformation, as shown in Figure 1, and due to this type of blade be hollow blade, its dimensional requirement for veneer is strict, therefore cannot be eliminated the bulging deformation of inner arc plate profile by methods such as sanding and polishings, the method for correction must be adopted to eliminate.In Fig. 1,2 is back of the body arc template face, and 3 is the signal of inner arc plate profile bulging deformation direction.Conventional correction adopts mould to correct more, blade is positioned in Correction Die die cavity by it, Correction Die comprises correction patrix and corrects counterdie, by forcing press, pressure is applied to Correction Die, by Correction Die, blade profile is corrected, but because such blade is hollow blade, directly utilize mould to correct size that it cannot ensure inner die cavity, timing pressure is excessive easily to be made the interior arc shaped surface indent of blade and produces secondary deformation, and pressure too small time interior arc shaped surface cannot be corrected to position, therefore its calibration result is poor, the processing request of such blade can not be met.
Summary of the invention
For the problems referred to above, the invention provides a kind of profile correction method of hollow shelf class stator blade, it solves the problem easily causing blade secondary deformation, calibration result difference existed in existing mold bearing calibration.
Its technical scheme is such, it comprises mould and corrects, Correction Die is installed on forcing press, it is characterized in that: before described mould corrects, be full of packing material in the die cavity inside of hollow shelf class stator blade, then blade is positioned in described Correction Die, utilizes described forcing press to carry out described mould correction to described Correction Die applying pressure to blade profile, the inner described packing material of removal blade die cavity after correction completes, blade can enter rear road manufacturing procedure.
It is further characterized in that: described packing material is paraffin; The described paraffin of wax melting box under molten state is filled in blade die cavity inside is used before blade mold corrects, blade is positioned in described Correction Die after the abundant cooled and solidified of paraffin in described blade die cavity and carries out described mould correction, to be corrected complete after blade is immersed boiler, remove in blade die cavity voluntarily after filling paraffin heat fusing in blade die cavity, rear road manufacturing procedure can be entered with rear blade.
It is further characterised in that: described paraffin adopts No. 58 commercial waxs (GB/T254-2010); Hot water temperature >=80 DEG C in described boiler; Described blade is positioned in described Correction Die and carries out timing, and the two ends of described Correction Die are provided with limit stick.
The inventive method is adopted to carry out profile calibration to hollow shelf class stator blade, its beneficial effect is: be full of packing material in the die cavity inside of blade before its blade mold calibration, before blade carries out mould correction, the supporting role that can play arc shaped surface in blade of the packing material of blade die cavity inside, the generation of the blade concavity type indent phenomenon effectively preventing blade mold timing from easily occurring, reduce the secondary deformation problem that blade causes because of correction, improve the calibration result that blade mold corrects; And packing material adopts paraffin, because paraffin melting point is low, adopt heating water tank namely can fill easily and remove, and the hardness of paraffin is moderate, it not only can play the effect that effectively supports die cavity but also interior profile can not be caused because quality is really up to the mark to correct and put in place, and the density of paraffin is lower than water simultaneously, what it can be undertaken reclaiming by water tank recycles, utilization rate is high, and production cost is low, and the impact of paraffin environmental pollution own is little; And carrying out mould comparatively timing, the limit stick that Correction Die both sides are arranged can play and prevent forcing press from transshipping and causing the exaggerated correction of Correction Die to blade and the phenomenon of damaged blade.
Accompanying drawing explanation
Fig. 1 is the bulging deformation schematic diagram occurring inner arc plate profile after the welding of hollow shelf class stator blade;
Fig. 2 be hollow shelf class stator blade of the present invention profile bearing calibration Leaf die cavity in fill out wax position view;
Fig. 3 is the Correction Die structural representation in the profile bearing calibration of hollow shelf class stator blade of the present invention.
Detailed description of the invention
A kind of profile correction method of hollow shelf class stator blade, it comprises mould and corrects, Correction Die is installed on forcing press, before mould corrects, be full of packing material 4 in the die cavity inside of hollow shelf class stator blade 5, see Fig. 2, then blade is positioned in Correction Die, utilize forcing press to apply pressure to Correction Die, mould correction is carried out to blade profile, the inner described packing material of removal blade die cavity after correction completes, blade can enter rear road manufacturing procedure.
Wherein packing material is paraffin, the paraffin of wax melting box under molten state is filled in blade die cavity inside is used before blade mold corrects, after the abundant cooled and solidified of paraffin in blade die cavity, blade is positioned in Correction Die and carries out mould correction, before mould corrects, clear up the residual paraffin of blade surface simultaneously, to be corrected complete after blade is immersed boiler, remove in blade die cavity voluntarily after filling paraffin heat fusing in blade die cavity, rear road manufacturing procedure can be entered with rear blade.Paraffin can adopt No. 58 commercial waxs (GB/T254-2010), hot water temperature >=80 DEG C in boiler; Carry out mould timing when blade is positioned in Correction Die, the two ends of Correction Die are provided with limit stick 6.
Claims (5)
1. the profile correction method of a hollow shelf class stator blade, it comprises mould and corrects, Correction Die is installed on forcing press, it is characterized in that: before described mould corrects, packing material is full of in the die cavity inside of hollow shelf class stator blade, then blade is positioned in described Correction Die, utilize described forcing press to apply pressure to described Correction Die and described mould correction is carried out to blade profile, the inner described packing material of removal blade die cavity after correction completes, blade can enter rear road manufacturing procedure, described blade is positioned in described Correction Die and carries out timing, the two ends of described Correction Die are provided with limit stick.
2. the profile correction method of a kind of hollow shelf class stator blade according to claim 1, is characterized in that: described packing material is paraffin.
3. the profile correction method of a kind of hollow shelf class stator blade according to claim 2, it is characterized in that: before blade mold corrects, use the described paraffin of wax melting box under molten state is filled in blade die cavity inside, blade is positioned in described Correction Die after the abundant cooled and solidified of paraffin in described blade die cavity and carries out described mould correction, to be corrected complete after blade is immersed boiler, remove in blade die cavity voluntarily after filling paraffin heat fusing in blade die cavity, rear road manufacturing procedure can be entered with rear blade.
4. the profile correction method of a kind of hollow shelf class stator blade according to claim 3, is characterized in that: described paraffin adopts No. 58 commercial waxs (GB/T254-2010).
5. the profile correction method of a kind of hollow shelf class stator blade according to claim 4, is characterized in that: hot water temperature >=80 DEG C in described boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458789.1A CN103599961B (en) | 2011-12-31 | 2011-12-31 | A kind of profile correction method of hollow shelf class stator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458789.1A CN103599961B (en) | 2011-12-31 | 2011-12-31 | A kind of profile correction method of hollow shelf class stator blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103599961A CN103599961A (en) | 2014-02-26 |
| CN103599961B true CN103599961B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110458789.1A Active CN103599961B (en) | 2011-12-31 | 2011-12-31 | A kind of profile correction method of hollow shelf class stator blade |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826895B (en) * | 2015-05-14 | 2016-09-28 | 辽宁福鞍重工股份有限公司 | A kind of straightening method of blanking blade |
| CN105222691B (en) * | 2015-08-26 | 2017-12-01 | 哈尔滨汽轮机厂有限责任公司 | A kind of hydraulic pressure curved surface clamped-in style blade alig nment device and school type method |
| CN105112632B (en) * | 2015-09-10 | 2017-04-12 | 苏州明和行新材料科技有限公司 | Forming method and device for hollow blade |
| CN107790583A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of bearing calibration of aero-engine metal plate hollow blade |
Citations (6)
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| FR2581902A1 (en) * | 1985-05-15 | 1986-11-21 | Maxel Jacques | Device and method permitting the reshaping and volume-correcting of deformed metal containers for packaging edible liquids |
| CN1030711A (en) * | 1987-05-06 | 1989-02-01 | Ti加拿大公司Ti汽车分公司 | The forming method of box-like frame members |
| CN2467219Y (en) * | 2000-12-15 | 2001-12-26 | 沈小蛇 | Antiflat and anti shrunken device for steel pipe bending processing |
| JP2010116856A (en) * | 2008-11-13 | 2010-05-27 | Kanazawa Tekkosho:Kk | One-piece press forming method of hollow nozzle blade for steam turbine and press machine |
| CN201543981U (en) * | 2009-11-25 | 2010-08-11 | 东方电气集团东方汽轮机有限公司 | Hollow blade correction tool |
| CN201791789U (en) * | 2010-09-26 | 2011-04-13 | 上海月月潮钢管制造有限公司 | Reshaping device of steel pipe |
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2011
- 2011-12-31 CN CN201110458789.1A patent/CN103599961B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2581902A1 (en) * | 1985-05-15 | 1986-11-21 | Maxel Jacques | Device and method permitting the reshaping and volume-correcting of deformed metal containers for packaging edible liquids |
| CN1030711A (en) * | 1987-05-06 | 1989-02-01 | Ti加拿大公司Ti汽车分公司 | The forming method of box-like frame members |
| CN2467219Y (en) * | 2000-12-15 | 2001-12-26 | 沈小蛇 | Antiflat and anti shrunken device for steel pipe bending processing |
| JP2010116856A (en) * | 2008-11-13 | 2010-05-27 | Kanazawa Tekkosho:Kk | One-piece press forming method of hollow nozzle blade for steam turbine and press machine |
| CN201543981U (en) * | 2009-11-25 | 2010-08-11 | 东方电气集团东方汽轮机有限公司 | Hollow blade correction tool |
| CN201791789U (en) * | 2010-09-26 | 2011-04-13 | 上海月月潮钢管制造有限公司 | Reshaping device of steel pipe |
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| CN103599961A (en) | 2014-02-26 |
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