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Preparation method of single-crystal double-wall hollow turbine blade based on photocuring technology
The invention relates to the field of precision casting, in particular to a preparation method of a single-crystal double-wall hollow turbine blade based on a photocuring technology. The method comprises the steps of firstly, preparing silicon-based ceramic core slurry with high solid content, high printing performance and more stable flow settling performance; secondly, obtaining a three-dimensional model of a complex double-wall silicon-based ceramic core according to a single-crystal hollow double-wall engine blade to be obtained, slicing the three-dimensional model of the core, and carrying out photocuring 3D printing path programming; thirdly, introducing an STL file of the core into a photocuring 3D printer, and performing printing layer by layer by means of the silicon-based ceramiccore slurry prepared in the first step to obtain a photocuring double-wall core biscuit; fourthly, drying and sintering the core biscuit to obtain a photocuring 3D printed complex double-wall silicon-based ceramic core; fifthly, carrying out wax mold pasting treatment by using the ceramic core and manufacturing a casting mold; and sixthly, performing single-crystal casting in a single-crystal furnace to obtain the double-wall hollow turbine blade.
本发明涉及精密铸造领域,具体为一种基于光固化技术单晶双层壁空心涡轮叶片的制备方法。第一步配制高固相含量、高打印性能、同时流动沉降性能更稳定优异的硅基陶瓷型芯浆料;第二步根据需要获得的单晶空心双层壁发动机叶片得到复杂双层壁硅基陶瓷型芯的三维模型,将型芯三维模型进行切片处理并进行光固化3D打印路径编程;第三步将型芯的STL文件导入光固化3D打印机中,并结合第一步配制好的硅基陶瓷型芯浆料进行逐层打印,获得光固化双层壁型芯素坯;第四步将型芯素坯进行干燥、烧结工艺,获得光固化3D打印的复杂双层壁硅基陶瓷型芯;第五步利用陶瓷型芯进行贴蜡模处理并制作浇注铸型;第六步在单晶炉中进行单晶浇注获得双层壁空心涡轮叶片。
Preparation method of single-crystal double-wall hollow turbine blade based on photocuring technology
The invention relates to the field of precision casting, in particular to a preparation method of a single-crystal double-wall hollow turbine blade based on a photocuring technology. The method comprises the steps of firstly, preparing silicon-based ceramic core slurry with high solid content, high printing performance and more stable flow settling performance; secondly, obtaining a three-dimensional model of a complex double-wall silicon-based ceramic core according to a single-crystal hollow double-wall engine blade to be obtained, slicing the three-dimensional model of the core, and carrying out photocuring 3D printing path programming; thirdly, introducing an STL file of the core into a photocuring 3D printer, and performing printing layer by layer by means of the silicon-based ceramiccore slurry prepared in the first step to obtain a photocuring double-wall core biscuit; fourthly, drying and sintering the core biscuit to obtain a photocuring 3D printed complex double-wall silicon-based ceramic core; fifthly, carrying out wax mold pasting treatment by using the ceramic core and manufacturing a casting mold; and sixthly, performing single-crystal casting in a single-crystal furnace to obtain the double-wall hollow turbine blade.
本发明涉及精密铸造领域,具体为一种基于光固化技术单晶双层壁空心涡轮叶片的制备方法。第一步配制高固相含量、高打印性能、同时流动沉降性能更稳定优异的硅基陶瓷型芯浆料;第二步根据需要获得的单晶空心双层壁发动机叶片得到复杂双层壁硅基陶瓷型芯的三维模型,将型芯三维模型进行切片处理并进行光固化3D打印路径编程;第三步将型芯的STL文件导入光固化3D打印机中,并结合第一步配制好的硅基陶瓷型芯浆料进行逐层打印,获得光固化双层壁型芯素坯;第四步将型芯素坯进行干燥、烧结工艺,获得光固化3D打印的复杂双层壁硅基陶瓷型芯;第五步利用陶瓷型芯进行贴蜡模处理并制作浇注铸型;第六步在单晶炉中进行单晶浇注获得双层壁空心涡轮叶片。
Preparation method of single-crystal double-wall hollow turbine blade based on photocuring technology
一种基于光固化技术单晶双层壁空心涡轮叶片的制备方法
LIANG JINGJING (Autor:in) / AN XIAOLONG (Autor:in) / LI JINGUO (Autor:in) / ZHOU YIZHOU (Autor:in) / SUN XIAOFENG (Autor:in)
05.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
C04B
Kalk
,
LIME
/
F01D
Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen
,
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
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