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Ceramic core for single-crystal high-temperature alloy blade and preparation method of ceramic core
The invention belongs to the technical field of high-temperature alloy investment precision casting and relates to a ceramic core for a single-crystal high-temperature alloy blade and a preparation method of the ceramic core. The ceramic core comprises the following raw materials in percentage by weight: 55%-75% of quartz glass powder, 5%-15% of fused corundum powder, 5%-15% of zirconium silicate powder, 0.5%-5% of yttrium oxide, 0.5%-5% of lanthanum oxide and 10%-25% of a plasticizer. The raw materials are subjected to mixing, heating, stirring, cooling and forming according to the weight percentage, and finally the ceramic core is prepared through roasting and strengthening. The core disclosed by the invention is mainly used for preparing a single-crystal blade, has the characteristics of high temperature resistance, good high-temperature creep resistance and the like, and can overcome the casting defects of deformation, fracture, interface reaction and the like of a ceramic core caused by long-time (1-3 hours) action of the core and a molten alloy at a high temperature in a single-crystal high-temperature alloy pouring process.
本发明涉及高温合金熔模精密铸造技术领域，具体为一种用于单晶高温合金叶片的陶瓷型芯及其制备方法。按重量百分比计，陶瓷型芯的原料包括：石英玻璃粉55％～75％，电熔刚玉粉5％～15％，硅酸锆粉5％～15％，氧化钇0.5％～5％，氧化镧0.5％～5％及增塑剂10％～25％。将上述原料按重量百分比经混配、加热、搅拌、冷却、成型，最终经焙烧和强化后制成陶瓷型芯。本发明的型芯主要用于单晶叶片的制备，该型芯具有耐温能力高，抗高温蠕变性能好等特点，可以解决单晶高温合金浇注过程中，由于型芯与熔融合金高温长时间(1至3小时)作用下导致的陶瓷型芯变形、断裂及界面反应等铸造缺陷。
Ceramic core for single-crystal high-temperature alloy blade and preparation method of ceramic core
The invention belongs to the technical field of high-temperature alloy investment precision casting and relates to a ceramic core for a single-crystal high-temperature alloy blade and a preparation method of the ceramic core. The ceramic core comprises the following raw materials in percentage by weight: 55%-75% of quartz glass powder, 5%-15% of fused corundum powder, 5%-15% of zirconium silicate powder, 0.5%-5% of yttrium oxide, 0.5%-5% of lanthanum oxide and 10%-25% of a plasticizer. The raw materials are subjected to mixing, heating, stirring, cooling and forming according to the weight percentage, and finally the ceramic core is prepared through roasting and strengthening. The core disclosed by the invention is mainly used for preparing a single-crystal blade, has the characteristics of high temperature resistance, good high-temperature creep resistance and the like, and can overcome the casting defects of deformation, fracture, interface reaction and the like of a ceramic core caused by long-time (1-3 hours) action of the core and a molten alloy at a high temperature in a single-crystal high-temperature alloy pouring process.
本发明涉及高温合金熔模精密铸造技术领域，具体为一种用于单晶高温合金叶片的陶瓷型芯及其制备方法。按重量百分比计，陶瓷型芯的原料包括：石英玻璃粉55％～75％，电熔刚玉粉5％～15％，硅酸锆粉5％～15％，氧化钇0.5％～5％，氧化镧0.5％～5％及增塑剂10％～25％。将上述原料按重量百分比经混配、加热、搅拌、冷却、成型，最终经焙烧和强化后制成陶瓷型芯。本发明的型芯主要用于单晶叶片的制备，该型芯具有耐温能力高，抗高温蠕变性能好等特点，可以解决单晶高温合金浇注过程中，由于型芯与熔融合金高温长时间(1至3小时)作用下导致的陶瓷型芯变形、断裂及界面反应等铸造缺陷。
Ceramic core for single-crystal high-temperature alloy blade and preparation method of ceramic core
一种用于单晶高温合金叶片的陶瓷型芯及其制备方法
ZHANG CHAOWEI (author) / MENG JIE (author) / ZHOU YIZHOU (author) / SUN XIAOFENG (author)
2021-09-07
Patent
Electronic Resource
Chinese
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