CN204321097U - Hot investment casting single crystal turbine blade model process bar - Google Patents
Hot investment casting single crystal turbine blade model process bar Download PDFInfo
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- CN204321097U CN204321097U CN201420683834.2U CN201420683834U CN204321097U CN 204321097 U CN204321097 U CN 204321097U CN 201420683834 U CN201420683834 U CN 201420683834U CN 204321097 U CN204321097 U CN 204321097U
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Abstract
The utility model discloses a kind of hot investment casting single crystal turbine blade model process bar, for solving the technical problem of existing hot investment casting single crystal turbine blade mold strength difference.Technical scheme is process bar totally three, described Article 1 process bar, Article 2 process bar and Article 3 process bar are all in half shaped as frame, article three, process bar is added on hot investment casting single crystal turbine blade model, wherein Article 1 process bar is positioned at leaf basin side, Article 2 process bar and Article 3 process bar are positioned at blade back side, near listrium left end is Article 2 process bar, and near listrium right-hand member is Article 3 process bar.The Article 1 process bar being positioned at leaf basin side is connected with listrium middle part, and Article 1 process bar extends along the direction perpendicular to listrium edge; By machining, three process bar, blade tip seeding section and running gate system are removed after casting complete.Owing to adding three process bar, improve the intensity of hot investment casting single crystal turbine blade model.
Description
Technical field
The utility model relates to a kind of process bar, particularly relates to a kind of hot investment casting single crystal turbine blade model process bar.
Background technology
Single crystal turbine blade in aero-engine generally adopts directional solidification technique to cast and forms, in metal liquid solidification process, owing to being subject to self freezing rate difference and the outside impact hindered, foundry goods inherently produces certain casting stress, after cast casting is shaping, just become cast-internal residual stress.For this thin-wall part with labyrinth of aero engine turbine blades, the excessive blade partial structurtes that mainly can cause of residual stress deform, dimension overproof, especially to this hollow thin-wall part of turbo blade, residual stress crosses that conference causes local wedge angle, blade root and listrium transition position produce stress and concentrate, the service life of reduction blade.On the other hand, residual stress distribution inequality can cause blade local residual stress excessive, and particularly residual stress likely can not cause crackle in a short time, but can crack suddenly in subsequent thermal processing process or in using, and can cause hardly imaginable consequence.
With reference to figure 1, document " the Converse solved algorithm and application of the high temperature alloy directional setting interface coefficient of heat transfer; " foundry engieering " in February, 2012 publishes, the 177th page " discloses a kind of hot investment casting single crystal turbine blade model, and this model is except Quench copper dish 9, each several part is all by waxed one-tenth, running gate system 1 is connected with the tenon 2 of blade, and blade end is blade tip seeding section 6, and blade tip seeding section 6 is connected with spiral crystal selector 7, for opening brilliant section 8 below spiral crystal selector 7, opening brilliant section 8 and being connected with Quench copper dish 9.What use in the experiment of single crystal blade directional solidification is typical model, running gate system is connected with the tenon position of blade wax mould by running channel, it is blade tip seeding section bottom blade wax mould, be followed successively by spiral crystal selector and Quench copper dish below blade tip seeding section, remove running gate system by machining after this model is poured into a mould and blade tip seeding section can obtain single crystal turbine blade.In this conventional model, there is the abrupt change of cross-section in blade and listrium junction, and there is larger stress and concentrate, listrium place easily cracks.
In Foundry Production, usually adopt the means of adding technology muscle to improve thin-wall part and fill type, exhaust conditions, prevent the defect such as misrun and crack deformation.But for this hollow thin-wall part with labyrinth of single crystal turbine blade, in hot investment casting model, not yet there is the use of process bar.
Summary of the invention
In order to overcome the deficiency of existing hot investment casting single crystal turbine blade mold strength difference, the utility model provides a kind of hot investment casting single crystal turbine blade model process bar.This process bar totally three, described Article 1 process bar, Article 2 process bar and Article 3 process bar are all in half shaped as frame, article three, process bar is added on hot investment casting single crystal turbine blade model, wherein Article 1 process bar is positioned at leaf basin side, Article 2 process bar and Article 3 process bar are positioned at blade back side, near listrium left end is Article 2 process bar, and near listrium right-hand member is Article 3 process bar.The Article 1 process bar being positioned at leaf basin side is connected with listrium middle part, and Article 1 process bar extends along the direction perpendicular to listrium edge; By machining, three process bar, blade tip seeding section and running gate system are removed after casting complete.Owing to adding three process bar, improve the intensity of hot investment casting single crystal turbine blade model.
The utility model solves the technical scheme that its technical problem adopts: a kind of hot investment casting single crystal turbine blade model process bar, be characterized in described process bar totally three, Article 1, process bar 10, Article 2 process bar 11 and Article 3 process bar 12 are all in half shaped as frame, article three, process bar is added on hot investment casting single crystal turbine blade model, wherein Article 1 process bar 10 is positioned at leaf basin 5 side, Article 2 process bar 11 and Article 3 process bar 12 are positioned at blade back 4 side, near listrium 3 left end is Article 2 process bar 11, near listrium 3 right-hand member is Article 3 process bar 12.The Article 1 process bar 10 being positioned at leaf basin 5 side is connected with listrium 3 middle part, and Article 1 process bar 10 extends along the direction perpendicular to listrium 3 edge; The Article 2 process bar 11 being positioned at blade back 4 side is connected with listrium 3 left end, and Article 2 process bar 11 extends along the direction perpendicular to listrium 3 edge; The Article 3 process bar 12 being positioned at blade back 4 side is connected with listrium 3 right-hand member, and Article 3 process bar 12 extends along the direction perpendicular to listrium 3 edge.Meanwhile, the Article 1 process bar 10 being positioned at leaf basin 5 side is connected with blade tip seeding section 6 middle part, draws from the normal direction of this camber line; The Article 2 process bar 11 being positioned at blade back 4 side is connected with blade tip seeding section 6 left end, draws from the normal direction of this camber line; The Article 3 process bar 12 being positioned at blade back 4 side is connected with blade tip seeding section 6 right-hand member, draws from the normal direction of this camber line.Article three, process bar all not with other location contacts except listrium 3 and blade tip seeding section 6.
The beneficial effects of the utility model are: this process bar totally three, described Article 1 process bar, Article 2 process bar and Article 3 process bar are all in half shaped as frame, article three, process bar is added on hot investment casting single crystal turbine blade model, wherein Article 1 process bar is positioned at leaf basin side, Article 2 process bar and Article 3 process bar are positioned at blade back side, near listrium left end is Article 2 process bar, and near listrium right-hand member is Article 3 process bar.The Article 1 process bar being positioned at leaf basin side is connected with listrium middle part, and Article 1 process bar extends along the direction perpendicular to listrium edge; By machining, three process bar, blade tip seeding section and running gate system are removed after casting complete.Owing to adding three process bar, improve the intensity of hot investment casting single crystal turbine blade model.
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Accompanying drawing explanation
Fig. 1 is the structural representation of background technology hot investment casting single crystal turbine blade model (containing running gate system and Quench copper dish).
Fig. 2 is the structural representation of the utility model hot investment casting single crystal turbine blade model process bar.
Fig. 3 is the top view of the utility model hot investment casting single crystal turbine blade model process bar.
Fig. 4 is the bottom view of the utility model hot investment casting single crystal turbine blade model process bar.
Fig. 5 is the structural representation that first, the utility model leaf basin side process bar is drawn from listrium middle part.
Fig. 6 is the structural representation that first, the utility model leaf basin side process bar is drawn from blade tip seeding section.
Fig. 7 is the structural representation that second, third root process bar of the utility model blade back side is drawn from listrium two-end part.
Fig. 8 is the structural representation that second, third root process bar of the utility model blade back side is drawn from blade tip seeding section.
In figure, 1-running gate system, 2-tenon, 3-listrium, 4-blade back, 5-leaf basin, 6-blade tip seeding section, 7-spiral crystal selector, 8-opens brilliant section, 9-Quench copper dish, 10-Article 1 process bar, 11-Article 2 process bar, 12-Article 3 process bar.
Detailed description of the invention
Following examples are with reference to Fig. 2 ~ 8.
The utility model hot investment casting single crystal turbine blade model process bar totally three, every bar process bar is half shaped as frame, article three, process bar is added on former hot investment casting single crystal turbine blade model, wherein Article 1 process bar 10 is positioned at leaf basin 5 side, Article 2 process bar 11 and Article 3 process bar 12 are positioned at blade back 4 side, near listrium 3 left end is Article 2 process bar 11, and near listrium 3 right-hand member is Article 3 process bar 12.
The Article 1 process bar 10 being positioned at leaf basin 5 side is connected with listrium 3 middle part, and Article 1 process bar 10 extends along the direction perpendicular to listrium 3 edge; The Article 2 process bar 11 being positioned at blade back 4 side is connected with listrium 3 left end, and process bar 11 extends along the direction perpendicular to listrium 3 edge; The Article 3 process bar 12 being positioned at blade back 4 side is connected with listrium 3 right-hand member, and process bar 12 extends along the direction perpendicular to listrium 3 edge.
The Article 1 process bar 10 being positioned at leaf basin 5 side is connected with blade tip seeding section 6 middle part, draws from the normal direction of this camber line; The Article 2 process bar 11 being positioned at blade back 4 side is connected with blade tip seeding section 6 left end, draws from the normal direction of this camber line; The Article 3 process bar 12 being positioned at blade back 4 side is connected with blade tip seeding section 6 right-hand member, draws from the normal direction of this camber line.Article three, process bar all not with other location contacts except listrium 3 and blade tip seeding section 6.
When producing, three process bar wax-patterns are added on the wax-pattern of former hot investment casting single crystal turbine blade, obtain new wax-pattern, then refractory material and mud is coated, carry out roasting after drying and can obtain model, then just can pour into a mould, by machining, three process bar, blade tip seeding section 6 and running gate system 1 be removed after casting complete.
Claims (1)
1. a hot investment casting single crystal turbine blade model process bar, it is characterized in that: described process bar totally three, Article 1, process bar (10), Article 2 process bar (11) and Article 3 process bar (12) are all in half shaped as frame, article three, process bar is added on hot investment casting single crystal turbine blade model, wherein Article 1 process bar (10) is positioned at leaf basin (5) side, Article 2 process bar (11) and Article 3 process bar (12) are positioned at blade back (4) side, near listrium (3) left end is Article 2 process bar (11), near listrium (3) right-hand member is Article 3 process bar (12), the Article 1 process bar (10) being positioned at leaf basin (5) side is connected with listrium (3) middle part, and Article 1 process bar (10) extends along the direction perpendicular to listrium (3) edge, the Article 2 process bar (11) being positioned at blade back (4) side is connected with listrium (3) left end, and Article 2 process bar (11) extends along the direction perpendicular to listrium (3) edge, the Article 3 process bar (12) being positioned at blade back (4) side is connected with listrium (3) right-hand member, and Article 3 process bar (12) extends along the direction perpendicular to listrium (3) edge, meanwhile, the Article 1 process bar (10) being positioned at leaf basin (5) side is connected with blade tip seeding section (6) middle part, draws from the normal direction of blade tip seeding section (6) middle part camber line, the Article 2 process bar (11) being positioned at blade back (4) side is connected with blade tip seeding section (6) left end, draws from the normal direction of blade tip seeding section (6) left end camber line, the Article 3 process bar (12) being positioned at blade back (4) side is connected with blade tip seeding section (6) right-hand member, draws from the normal direction of blade tip seeding section (6) right-hand member camber line, article three, process bar all not with other location contacts except listrium (3) and blade tip seeding section (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683834.2U CN204321097U (en) | 2014-11-14 | 2014-11-14 | Hot investment casting single crystal turbine blade model process bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683834.2U CN204321097U (en) | 2014-11-14 | 2014-11-14 | Hot investment casting single crystal turbine blade model process bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204321097U true CN204321097U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420683834.2U Withdrawn - After Issue CN204321097U (en) | 2014-11-14 | 2014-11-14 | Hot investment casting single crystal turbine blade model process bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204321097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368764A (en) * | 2014-11-14 | 2015-02-25 | 西北工业大学 | Process bar of precision casting single-crystal turbine blade model |
| CN115213379A (en) * | 2022-01-10 | 2022-10-21 | 西北工业大学 | Design method of process rib for regulating and controlling mixed crystals of edge plate of single crystal blade |
-
2014
- 2014-11-14 CN CN201420683834.2U patent/CN204321097U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368764A (en) * | 2014-11-14 | 2015-02-25 | 西北工业大学 | Process bar of precision casting single-crystal turbine blade model |
| CN104368764B (en) * | 2014-11-14 | 2016-07-06 | 西北工业大学 | Hot investment casting single crystal turbine blade model process bar |
| CN115213379A (en) * | 2022-01-10 | 2022-10-21 | 西北工业大学 | Design method of process rib for regulating and controlling mixed crystals of edge plate of single crystal blade |
| CN115213379B (en) * | 2022-01-10 | 2023-06-20 | 西北工业大学 | Design method of technological rib of monocrystalline blade regulating flange plate mixed crystal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150513 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |