CN208083357U - A kind of single crystal casting break-resistance bottom plate - Google Patents
A kind of single crystal casting break-resistance bottom plate Download PDFInfo
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- CN208083357U CN208083357U CN201721674450.4U CN201721674450U CN208083357U CN 208083357 U CN208083357 U CN 208083357U CN 201721674450 U CN201721674450 U CN 201721674450U CN 208083357 U CN208083357 U CN 208083357U
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- bottom plate
- single crystal
- crystal casting
- circular hole
- position circular
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Abstract
The utility model discloses a kind of single crystal casting break-resistance bottom plates, circular bottom plate including being provided with feed trumpet position circular hole and nucleation machine position circular hole, there are one buffer bars for setting between two nucleation machine position circular holes on the bottom plate, the buffer bar is extended from bottom edge to the feed trumpet position circular hole center of circle, and two sidelines of buffer bar are bottom plate radial direction；The utility model is designed using special bottom plate formwork, eliminates formwork different zones temperature difference and the bottom plate pullled and formed is caused to rupture and deform, improve single crystal casting success rate.
Description
Technical field
The utility model relates generally to hot investment casting field, and in particular to one kind can be eliminated because temperature difference causes monocrystalline to be used
Formwork bottom plate crackle or the accurate bottom plate of deformation cast formwork design method.
Background technology
With the continuous improvement for having an high regard for aero-engine when working efficiency requirement, temperature before aero-turbine
It is continuously improved therewith, has been even up to 1550 DEG C or more of high temperature.Common equiaxed grain structure high-temperature alloy blades are difficult to be served in
This working condition.Single crystal super alloy is due to having many advantages, such as fusing point high, elevated temperature strength and creep-resistant property is excellent is got over
Carry out more applications.It will be appreciated, however, that in order to realize the directional solidification of single crystal casting, it can be in single crystal casting hot investment casting
A circular bottom plate 3 is designed in formwork bottom, has nucleation machine position circular hole 11 on bottom plate, as single grain forming core and growth
Point.In alloy casting process, it can be poured into molten metal in the circular hole on bottom plate, mould shell temperature around it is caused to increase rapidly,
And the regional temperature close to feed trumpet 2 is relatively low, two regional temperature fields can be up to 800 DEG C.It is well known that this can undoubtedly draw
Playing formwork swell increment in two regions, power is pullled in difference, formation, causes formwork bottom plate to rupture or deform or even single crystal casting
Failure.The phenomenon is more apparent when formwork base plate size is bigger than normal, especially when bottom plate diameter is more than 500mm and casting and pouring temperature
When degree is higher than 1500 DEG C.
The formwork preparation method proposed in the utility model can effective solution this problem, reduce caused by above-mentioned reason
Single crystal casting mortality.
Utility model content
The purpose of this utility model is a kind of new bottom plate formwork structure of design, prevents formwork bottom plate from being caused brokenly because of deformation
It splits, improves casting success ratio.
The utility model is achieved through the following technical solutions：
A kind of single crystal casting break-resistance bottom plate, including it is provided with feed trumpet position circular hole and nucleation machine position circular hole
Circular bottom plate, there are one buffer bars for setting between two nucleation machine position circular holes on the bottom plate, and the buffer bar is by bottom plate side
Edge extends to the feed trumpet position circular hole center of circle, and two sidelines of buffer bar are bottom plate radial direction；
A kind of single crystal casting break-resistance bottom plate, the angle between described two sidelines of buffer bar is 4-8 degree, two sidelines
Length 50mm to 100mm, the buffer bar at most there are three.
Advantageous effect caused by the utility model is：
The utility model is designed using special bottom plate formwork, is eliminated formwork different zones temperature difference and is caused to pull and formed
Bottom plate rupture and deformation, improve single crystal casting success rate.
Description of the drawings
Fig. 1 the utility model structure diagrams.
Bottom plate formwork top partial view diagram after Fig. 2 dewaxings.
Specific implementation mode
As shown in Figure 1, 2, a kind of single crystal casting break-resistance bottom plate, including be provided with feed trumpet position circular hole 2 and rise
The circular bottom plate 1 of brilliant device position circular hole 3, there are one buffer bar 4, institutes for setting between two nucleation machine position circular holes 3 on the bottom plate 1
The buffer bar 4 stated is extended from bottom edge to 2 center of circle of feed trumpet position circular hole, and two sidelines 5 of buffer bar 4 are 1 radius of bottom plate
Direction；
A kind of single crystal casting break-resistance bottom plate, the angle between described 4 two sidelines 5 of buffer bar is 4-8 degree, two sides
5 length 50mm to 100mm of line, the buffer bar 4 at most there are three.
Claims (4)
1. a kind of single crystal casting break-resistance bottom plate, including it is provided with the circle of feed trumpet position circular hole and nucleation machine position circular hole
Shape bottom plate, it is characterised in that：There are one buffer bars for setting between two nucleation machine position circular holes on the bottom plate.
2. a kind of single crystal casting break-resistance bottom plate according to claim 1, it is characterised in that：The buffer bar is the bottom of by
Edges of boards edge extends to the feed trumpet position circular hole center of circle, and two sidelines of buffer bar are bottom plate radial direction.
3. a kind of single crystal casting break-resistance bottom plate according to claim 1, it is characterised in that：The buffer bar two
Angle between sideline is 4-8 degree, two side line length 50mm to 100mm.
4. a kind of single crystal casting break-resistance bottom plate according to claim 1, it is characterised in that：The buffer bar is at most
There are three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674450.4U CN208083357U (en) | 2017-12-06 | 2017-12-06 | A kind of single crystal casting break-resistance bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674450.4U CN208083357U (en) | 2017-12-06 | 2017-12-06 | A kind of single crystal casting break-resistance bottom plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208083357U true CN208083357U (en) | 2018-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721674450.4U Active CN208083357U (en) | 2017-12-06 | 2017-12-06 | A kind of single crystal casting break-resistance bottom plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN208083357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803465A (en) * | 2017-12-06 | 2018-03-16 | 安徽应流航源动力科技有限公司 | A kind of single crystal casting break-resistance bottom plate and preparation method thereof |
-
2017
- 2017-12-06 CN CN201721674450.4U patent/CN208083357U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803465A (en) * | 2017-12-06 | 2018-03-16 | 安徽应流航源动力科技有限公司 | A kind of single crystal casting break-resistance bottom plate and preparation method thereof |
| CN107803465B (en) * | 2017-12-06 | 2024-01-05 | 安徽应流航源动力科技有限公司 | Anti-cracking bottom plate for single crystal castings and preparation method thereof |
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