A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-deformation high-strength ceramic core and preparation method thereof
The invention relates to the technical field of investment casting of hollow castings, in particular to a low-deformation high-strength ceramic core and a preparation method thereof.The low-deformation high-strength ceramic core comprises ceramic core powder, and the ceramic core powder comprises, by mass, 30-85% of high-temperature calcined high-bauxite powder, 10-50% of electric smelting mullite powder and 1-20% of alumina powder. According to the ceramic core and the preparation method thereof disclosed by the invention, the ceramic core prepared by accurately proportioning the high-temperature calcined high-alumina bauxite powder, the electrically-fused mullite powder and the alumina powder and combining the synergistic effect of the toughening agent, the pore forming agent and the plasticizer has relatively low deformation and relatively high high-temperature strength, and can meet the requirements of hollow directional/single-crystal castings and polycrystalline hollow castings which are poured at high temperature.
本发明涉及空心铸件的熔模铸造技术领域，具体涉及一种低变形高强度陶瓷型芯及其制备方法，包括陶瓷型芯粉料，按质量百分数计，所述陶瓷型芯粉料包括30‑85％的高温煅烧高铝矾土粉、10‑50％的电熔莫来石粉和1‑20％的氧化铝粉。本发明通过高温煅烧高铝矾土粉、电熔莫来石粉和氧化铝粉的精确配比，结合增韧剂、造孔剂和增塑剂的协同作用，制得的陶瓷型芯具有较低的变形量，较高的高温强度，能满足高温浇注的空心定向/单晶铸件、多晶空心铸件的需求。
Low-deformation high-strength ceramic core and preparation method thereof
The invention relates to the technical field of investment casting of hollow castings, in particular to a low-deformation high-strength ceramic core and a preparation method thereof.The low-deformation high-strength ceramic core comprises ceramic core powder, and the ceramic core powder comprises, by mass, 30-85% of high-temperature calcined high-bauxite powder, 10-50% of electric smelting mullite powder and 1-20% of alumina powder. According to the ceramic core and the preparation method thereof disclosed by the invention, the ceramic core prepared by accurately proportioning the high-temperature calcined high-alumina bauxite powder, the electrically-fused mullite powder and the alumina powder and combining the synergistic effect of the toughening agent, the pore forming agent and the plasticizer has relatively low deformation and relatively high high-temperature strength, and can meet the requirements of hollow directional/single-crystal castings and polycrystalline hollow castings which are poured at high temperature.
本发明涉及空心铸件的熔模铸造技术领域，具体涉及一种低变形高强度陶瓷型芯及其制备方法，包括陶瓷型芯粉料，按质量百分数计，所述陶瓷型芯粉料包括30‑85％的高温煅烧高铝矾土粉、10‑50％的电熔莫来石粉和1‑20％的氧化铝粉。本发明通过高温煅烧高铝矾土粉、电熔莫来石粉和氧化铝粉的精确配比，结合增韧剂、造孔剂和增塑剂的协同作用，制得的陶瓷型芯具有较低的变形量，较高的高温强度，能满足高温浇注的空心定向/单晶铸件、多晶空心铸件的需求。
Low-deformation high-strength ceramic core and preparation method thereof
一种低变形高强度陶瓷型芯及其制备方法
ZHANG LING (author) / JIN LEI (author) / GUO XINLI (author) / WANG TAO (author) / FAN BINGZHENG (author)
2024-12-13
Patent
Electronic Resource
Chinese
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