Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon oxide-based ceramic core and preparation method thereof
The invention discloses a preparation method of a silicon oxide-based ceramic core, which comprises the following steps: uniformly mixing zircon powder and alumina micro powder according to a specific proportion to obtain mixed powder; uniformly mixing the mixed powder and quartz glass powder with single particle size according to a specific ratio to obtain refractory powder; weighing the plasticizer and the refractory powder according to the calculated weight ratio, and uniformly stirring to obtain ceramic slurry; preparing the ceramic slurry into a ceramic biscuit; embedding the ceramic biscuit into the pre-sintered landfill powder, and heating and sintering according to a set heating speed to obtain a ceramic core; and the ceramic core is subjected to strengthening treatment and the like. According to the invention, through an alumina micro powder doping technology and an optimized sintering schedule, quartz glass powder with a single particle size is used as a matrix material, the performance of the ceramic core can be ensured to meet the application of a single crystal turbine blade, and the variety of raw materials is reduced, so that the method has great advantages in quality stability control of the performance of the ceramic core.
本发明公开了一种氧化硅基陶瓷型芯制备方法，包括将特定比例的锆英粉和氧化铝微粉混合均匀，得混合粉；将特定比例的混合粉和单一粒径的石英玻璃粉混合均匀，得耐火粉料；按计算配比重量，称取增塑剂和耐火粉料，并搅拌均匀，得陶瓷料浆；将陶瓷料浆制成陶瓷素坯；将陶瓷素坯埋入预烧处理的填埋粉中，按照设定的加热速度升温烧结，得陶瓷型芯；对陶瓷型芯进行强化处理等过程。本发明通过掺杂氧化铝微粉技术和优化的烧结制度，实现了以单一粒径的石英玻璃粉作为基体材料也能保证陶芯性能满足单晶涡轮叶片的应用，因减少了原材料种类，对陶芯性能的质量稳定性控制具备极大的优势。
Silicon oxide-based ceramic core and preparation method thereof
The invention discloses a preparation method of a silicon oxide-based ceramic core, which comprises the following steps: uniformly mixing zircon powder and alumina micro powder according to a specific proportion to obtain mixed powder; uniformly mixing the mixed powder and quartz glass powder with single particle size according to a specific ratio to obtain refractory powder; weighing the plasticizer and the refractory powder according to the calculated weight ratio, and uniformly stirring to obtain ceramic slurry; preparing the ceramic slurry into a ceramic biscuit; embedding the ceramic biscuit into the pre-sintered landfill powder, and heating and sintering according to a set heating speed to obtain a ceramic core; and the ceramic core is subjected to strengthening treatment and the like. According to the invention, through an alumina micro powder doping technology and an optimized sintering schedule, quartz glass powder with a single particle size is used as a matrix material, the performance of the ceramic core can be ensured to meet the application of a single crystal turbine blade, and the variety of raw materials is reduced, so that the method has great advantages in quality stability control of the performance of the ceramic core.
本发明公开了一种氧化硅基陶瓷型芯制备方法，包括将特定比例的锆英粉和氧化铝微粉混合均匀，得混合粉；将特定比例的混合粉和单一粒径的石英玻璃粉混合均匀，得耐火粉料；按计算配比重量，称取增塑剂和耐火粉料，并搅拌均匀，得陶瓷料浆；将陶瓷料浆制成陶瓷素坯；将陶瓷素坯埋入预烧处理的填埋粉中，按照设定的加热速度升温烧结，得陶瓷型芯；对陶瓷型芯进行强化处理等过程。本发明通过掺杂氧化铝微粉技术和优化的烧结制度，实现了以单一粒径的石英玻璃粉作为基体材料也能保证陶芯性能满足单晶涡轮叶片的应用，因减少了原材料种类，对陶芯性能的质量稳定性控制具备极大的优势。
Silicon oxide-based ceramic core and preparation method thereof
一种氧化硅基陶瓷型芯及其制备方法
PAN ZHIPING (Autor:in) / ZHANG SHOUYIN (Autor:in) / LU BAIPING (Autor:in)
02.02.2024
Patent
Elektronische Ressource
Chinesisch
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