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Alumina-based ceramic core and preparation and removal method thereof
The invention relates to an alumina-based ceramic core and a preparation and removal method thereof, and relates to the technical field of engine blade casting. The alumina-based ceramic core comprises the following raw materials: solid powder and a plasticizer, the mass ratio of the solid powder to the plasticizer is 1: (0.1-0.8); the solid powder is prepared from the following raw materials in percentage by mass: 0.5 to 10 percent of composite mineralizer powder, 87 to 99.5 percent of aluminum oxide powder and 0.1 to 3 percent of fiber material. On the premise that the use strength and high-temperature strength of the aluminum-based ceramic core are not reduced, the chemical removal rate of the aluminum-based ceramic core is increased, and the problem that the aluminum-based ceramic core is difficult to remove, which puzzles the field of engine blade casting for a long time, is solved from the source.
本发明涉及一种氧化铝基陶瓷型芯及其制备与脱除方法，涉及发动机叶片铸造技术领域。本发明的氧化铝基陶瓷型芯包括以下原料：固体粉体、增塑剂；所述固体粉体与增塑剂的质量比为1:0.1‑0.8；所述固体粉体包括以下质量百分含量原料：0.5‑10％复合矿化剂粉体、87％‑99.5％氧化铝粉体、0.1％‑3％纤维材料。本发明在不降低铝基陶瓷型芯使用强度和高温强度的前提下，提升铝基陶瓷型芯的化学脱除速率，从源头解决长期困扰发动机叶片铸造领域的铝基陶瓷型芯脱芯困难的问题。
Alumina-based ceramic core and preparation and removal method thereof
The invention relates to an alumina-based ceramic core and a preparation and removal method thereof, and relates to the technical field of engine blade casting. The alumina-based ceramic core comprises the following raw materials: solid powder and a plasticizer, the mass ratio of the solid powder to the plasticizer is 1: (0.1-0.8); the solid powder is prepared from the following raw materials in percentage by mass: 0.5 to 10 percent of composite mineralizer powder, 87 to 99.5 percent of aluminum oxide powder and 0.1 to 3 percent of fiber material. On the premise that the use strength and high-temperature strength of the aluminum-based ceramic core are not reduced, the chemical removal rate of the aluminum-based ceramic core is increased, and the problem that the aluminum-based ceramic core is difficult to remove, which puzzles the field of engine blade casting for a long time, is solved from the source.
本发明涉及一种氧化铝基陶瓷型芯及其制备与脱除方法，涉及发动机叶片铸造技术领域。本发明的氧化铝基陶瓷型芯包括以下原料：固体粉体、增塑剂；所述固体粉体与增塑剂的质量比为1:0.1‑0.8；所述固体粉体包括以下质量百分含量原料：0.5‑10％复合矿化剂粉体、87％‑99.5％氧化铝粉体、0.1％‑3％纤维材料。本发明在不降低铝基陶瓷型芯使用强度和高温强度的前提下，提升铝基陶瓷型芯的化学脱除速率，从源头解决长期困扰发动机叶片铸造领域的铝基陶瓷型芯脱芯困难的问题。
Alumina-based ceramic core and preparation and removal method thereof
一种氧化铝基陶瓷型芯及其制备与脱除方法
HUANG CHANGHUI (author) / OUYANG JING (author) / ZHOU WENTAO (author)
2024-07-09
Patent
Electronic Resource
Chinese
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