Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Photocuring silicon-based ceramic core biscuit degreasing method for investment casting
The invention relates to the field of precision casting, in particular to a photocuring silicon-based ceramic core biscuit degreasing method for investment casting. The method comprises the followingsteps: 1, preparing 50-60vol% of silicon-based ceramic core slurry with high solid content and high printing performance; 2, establishing a complex double-wall silicon-based ceramic core three-dimensional model, slicing the model, importing an STL format file into a photocuring 3D printer, and carrying out core layer by layer printing to obtain a photocuring double-wall silicon-based ceramic corebiscuit; and 3, placing a crucible with the ceramic core biscuit in a vacuum hot pressing furnace, heating to 300-500 DEG C at a heating rate of 0.5-2 DEG C/min under a high vacuum condition of 1 * 10<-3 >-1 * 10 <-4 > Pa, keeping the temperature for 2-4 hours, and completely drying and degreasing the silicon-based ceramic core biscuit. The method is suitable for precision casting of hollow engine blades, moisture in the silicon-based ceramic biscuit can be fully removed, and light-cured resin organic matter can be slowly decomposed.
本发明涉及精密铸造领域，具体为一种熔模铸造用光固化硅基陶瓷型芯素坯脱脂方法。第一步制备50vol％～60vol％高固相含量、高打印性能的硅基陶瓷型芯浆料；第二步建立复杂双层壁硅基陶瓷型芯三维模型，对模型进行切片处理导入STL格式文件于光固化3D打印机中，进行型芯逐层打印，获得光固化双层壁硅基陶瓷型芯素坯；第三步将放置陶瓷型芯素坯的坩埚放置于真空热压炉中，在1×10～1×10Pa的高真空条件下，以0.5～2℃/min的升温速率升至300～500℃之间，保温2～4小时，硅基陶瓷型芯素坯进行完全干燥、脱脂。本发明适用于精密铸造空心发动机叶片，可以充分去除硅基陶瓷素坯中的水分，并使光固化树脂有机物得到缓慢分解。
Photocuring silicon-based ceramic core biscuit degreasing method for investment casting
The invention relates to the field of precision casting, in particular to a photocuring silicon-based ceramic core biscuit degreasing method for investment casting. The method comprises the followingsteps: 1, preparing 50-60vol% of silicon-based ceramic core slurry with high solid content and high printing performance; 2, establishing a complex double-wall silicon-based ceramic core three-dimensional model, slicing the model, importing an STL format file into a photocuring 3D printer, and carrying out core layer by layer printing to obtain a photocuring double-wall silicon-based ceramic corebiscuit; and 3, placing a crucible with the ceramic core biscuit in a vacuum hot pressing furnace, heating to 300-500 DEG C at a heating rate of 0.5-2 DEG C/min under a high vacuum condition of 1 * 10<-3 >-1 * 10 <-4 > Pa, keeping the temperature for 2-4 hours, and completely drying and degreasing the silicon-based ceramic core biscuit. The method is suitable for precision casting of hollow engine blades, moisture in the silicon-based ceramic biscuit can be fully removed, and light-cured resin organic matter can be slowly decomposed.
本发明涉及精密铸造领域，具体为一种熔模铸造用光固化硅基陶瓷型芯素坯脱脂方法。第一步制备50vol％～60vol％高固相含量、高打印性能的硅基陶瓷型芯浆料；第二步建立复杂双层壁硅基陶瓷型芯三维模型，对模型进行切片处理导入STL格式文件于光固化3D打印机中，进行型芯逐层打印，获得光固化双层壁硅基陶瓷型芯素坯；第三步将放置陶瓷型芯素坯的坩埚放置于真空热压炉中，在1×10～1×10Pa的高真空条件下，以0.5～2℃/min的升温速率升至300～500℃之间，保温2～4小时，硅基陶瓷型芯素坯进行完全干燥、脱脂。本发明适用于精密铸造空心发动机叶片，可以充分去除硅基陶瓷素坯中的水分，并使光固化树脂有机物得到缓慢分解。
Photocuring silicon-based ceramic core biscuit degreasing method for investment casting
一种熔模铸造用光固化硅基陶瓷型芯素坯脱脂方法
LIANG JINGJING (Autor:in) / AN XIAOLONG (Autor:in) / LI JINGUO (Autor:in) / ZHOU YIZHOU (Autor:in) / SUN XIAOFENG (Autor:in)
30.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
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
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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