PL414777A1 - Ceramic mould for producing monocrystalline castings from nickel superalloys - Google Patents
Ceramic mould for producing monocrystalline castings from nickel superalloysInfo
- Publication number
- PL414777A1 PL414777A1 PL414777A PL41477715A PL414777A1 PL 414777 A1 PL414777 A1 PL 414777A1 PL 414777 A PL414777 A PL 414777A PL 41477715 A PL41477715 A PL 41477715A PL 414777 A1 PL414777 A1 PL 414777A1
- Authority
- PL
- Poland
- Prior art keywords
- castings
- ceramic
- producing monocrystalline
- nickel superalloys
- mold
- Prior art date
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Przedmiotem zgłoszenia jest forma ceramiczna do wytwarzania monokrystalicznych odlewów z nadstopów niklu, zwłaszcza odlewów łopatek turbin silników lotniczych, jak również gazowych turbin energetycznych. Forma ceramiczna (1) do wytwarzania monokrystalicznych odlewów (9) z nadstopów niklu, którą stanowi zespół rozłożonych pojedynczych oddzielnych form (2) rozłożonych na jej obwodzie zgodnie z wynalazkiem, charakteryzuje się tym, że w odległości (h) wynoszącej od 20 do 45 mm od strefy (8) skokowej zmiany przekroju wykonywanych odlewów (9) usytuowana jest przegroda cieplna ceramiczna (5) integralnie sprzężona z trzpieniem nośnym (4) formy (1) usytuowanym w jej osi, której grubość (gc) wynosi od 20 do 35 mm a średnica zewnętrzna (dc) powinna zapewnić nie większą niż 20 mm szczelinę (s) pomiędzy odlewami (9) a jej obrzeżem (6). Korzystnie forma ceramiczna (1) zgodnie z wynalazkiem charakteryzuje się tym, że na górnej powierzchni (14) przegrody ceramicznej (5) usytuowana jest przegroda grafitowa (7), którą stanowi pierścień o grubości (gg) od 2 do 10 mm i średnicy zewnętrznej (dg) stykającej się z zespołem pojedynczych oddzielnych form (2).The subject of the application is a ceramic mold for producing monocrystalline castings from nickel superalloys, especially castings of aircraft engine turbine blades, as well as gas power turbines. The ceramic mold (1) for producing monocrystalline castings (9) from nickel superalloys, which is a set of distributed individual separate molds (2) distributed along its perimeter in accordance with the invention, is characterized in that at a distance (h) of 20 to 45 mm from the zone (8) of the abrupt change of the cross-section of the castings (9) a ceramic thermal barrier (5) is integrally coupled with the bearing pin (4) of the mold (1) located in its axis, whose thickness (gc) is from 20 to 35 mm and the outer diameter (dc) should provide a gap of no more than 20 mm (s) between the castings (9) and its periphery (6). Preferably, the ceramic mold (1) according to the invention is characterized in that on the upper surface (14) of the ceramic partition (5) there is a graphite partition (7), which is a ring with a thickness (gg) of 2 to 10 mm and an outer diameter ( dg) in contact with a set of individual, separate forms (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL414777A PL228076B1 (en) | 2015-11-13 | 2015-11-13 | Ceramic mould for producing monocrystalline castings from nickel superalloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL414777A PL228076B1 (en) | 2015-11-13 | 2015-11-13 | Ceramic mould for producing monocrystalline castings from nickel superalloys |
Publications (2)
Publication Number | Publication Date |
---|---|
PL414777A1 true PL414777A1 (en) | 2017-05-22 |
PL228076B1 PL228076B1 (en) | 2018-02-28 |
Family
ID=58709112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL414777A PL228076B1 (en) | 2015-11-13 | 2015-11-13 | Ceramic mould for producing monocrystalline castings from nickel superalloys |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL228076B1 (en) |
-
2015
- 2015-11-13 PL PL414777A patent/PL228076B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL228076B1 (en) | 2018-02-28 |
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