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Ceramic matrix composite material guide blade with trailing edge crack and preparation method of ceramic matrix composite material guide blade
The invention discloses a ceramic matrix composite guide blade with trailing edge cracks and a preparation method thereof, and the method comprises the following steps: uniformly placing a pre-buried crack model in an open trailing edge of a guide blade fiber preform clamped with an inner mold, and sequentially sewing, covering the mold and sewing to obtain the ceramic matrix composite guide blade with the trailing edge cracks. Preparing a guide blade fiber prefabricated body clamped with an inner mold and a pre-embedded crack model; sequentially depositing an interface layer and a ceramic matrix, removing the mold, processing to a designed size, continuously depositing the ceramic matrix, finishing to the designed size, and repairing the damage to obtain the ceramic matrix composite material guide blade with the trailing edge crack. According to the guide blade, the temperature of the tail edge of the guide blade can be greatly reduced by about 43.7%, the overall cooling effect of the guide blade is remarkably enhanced, the preparation method is simple and easy to operate, the preparation method is suitable for preparation of the tail edge crack with the large depth-diameter ratio, and the problem that a channel with the large depth-diameter ratio cannot be directly machined is effectively solved.
本发明公开了一种具有尾缘劈缝的陶瓷基复合材料导向叶片及其制备方法，该方法包括以下步骤：将预埋劈缝模型均匀放置于夹持有内型模具的导向叶片纤维预制体的开放式尾缘内，依次缝合、覆盖模具和缝合，制得夹持有内型模具和预埋劈缝模型的导向叶片纤维预制体；然后依次沉积界面层和陶瓷基体，去除模具，加工至设计尺寸，继续沉积陶瓷基体，精加工至设计尺寸，然后进行损伤修复，制得具有尾缘劈缝的陶瓷基复合材料导向叶片。该导向叶片能够大幅度降低导向叶片尾缘处温度约43.7％，显著增强了导向叶片整体冷却效果，本发明的制备方法简单易操作，适用于大深径比的尾缘劈缝的制备，有效解决了大深径比槽道无法直接加工的问题。
Ceramic matrix composite material guide blade with trailing edge crack and preparation method of ceramic matrix composite material guide blade
The invention discloses a ceramic matrix composite guide blade with trailing edge cracks and a preparation method thereof, and the method comprises the following steps: uniformly placing a pre-buried crack model in an open trailing edge of a guide blade fiber preform clamped with an inner mold, and sequentially sewing, covering the mold and sewing to obtain the ceramic matrix composite guide blade with the trailing edge cracks. Preparing a guide blade fiber prefabricated body clamped with an inner mold and a pre-embedded crack model; sequentially depositing an interface layer and a ceramic matrix, removing the mold, processing to a designed size, continuously depositing the ceramic matrix, finishing to the designed size, and repairing the damage to obtain the ceramic matrix composite material guide blade with the trailing edge crack. According to the guide blade, the temperature of the tail edge of the guide blade can be greatly reduced by about 43.7%, the overall cooling effect of the guide blade is remarkably enhanced, the preparation method is simple and easy to operate, the preparation method is suitable for preparation of the tail edge crack with the large depth-diameter ratio, and the problem that a channel with the large depth-diameter ratio cannot be directly machined is effectively solved.
本发明公开了一种具有尾缘劈缝的陶瓷基复合材料导向叶片及其制备方法，该方法包括以下步骤：将预埋劈缝模型均匀放置于夹持有内型模具的导向叶片纤维预制体的开放式尾缘内，依次缝合、覆盖模具和缝合，制得夹持有内型模具和预埋劈缝模型的导向叶片纤维预制体；然后依次沉积界面层和陶瓷基体，去除模具，加工至设计尺寸，继续沉积陶瓷基体，精加工至设计尺寸，然后进行损伤修复，制得具有尾缘劈缝的陶瓷基复合材料导向叶片。该导向叶片能够大幅度降低导向叶片尾缘处温度约43.7％，显著增强了导向叶片整体冷却效果，本发明的制备方法简单易操作，适用于大深径比的尾缘劈缝的制备，有效解决了大深径比槽道无法直接加工的问题。
Ceramic matrix composite material guide blade with trailing edge crack and preparation method of ceramic matrix composite material guide blade
一种具有尾缘劈缝的陶瓷基复合材料导向叶片及其制备方法
ZHANG XI (author) / YANG YONG (author) / LIU CHIDONG (author) / SUN XIANG (author) / LI JIANZHANG (author) / WANG QING (author) / CHENG LAIFEI (author)
2022-09-23
Patent
Electronic Resource
Chinese
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