Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of ceramic matrix composite multi-cavity structure high-pressure turbine guide blade
The invention relates to a high-pressure turbine guide blade, in particular to a preparation method of a ceramic matrix composite multi-cavity structure high-pressure turbine guide blade. The technical problems that a ceramic matrix composite high-pressure turbine guide blade component is difficult to form, the size of the blade component is poor, and an embedded crack model is prone to being bonded with the blade are solved. The method comprises the following steps that (1) an upper margin plate component prefabricated body, a lower margin plate component prefabricated body and a blade body prefabricated body are prepared; (2) preparing a boron nitride interface layer for each prefabricated body; (3) SiC base body preparation is conducted on each prefabricated body, and in the blade body prefabricated body densification process, a new graphite tool and a new graphite paper pad need to be used for deposition in each furnace at the position of a crack structure; (4) preparing a self-healing matrix for each prefabricated body; (5) all the parts are machined; an inner core baffle and a plurality of turbulent flow columns are installed; and all the components are assembled on line, and the turbine guide blade is obtained through deposition and machining.
本发明涉及一种高压涡轮导向叶片，具体涉及一种陶瓷基复合材料多腔结构高压涡轮导向叶片的制备方法。解决了陶瓷基复合材料高压涡轮导向叶片构件成型困难、叶片构件尺寸差以及预埋劈缝模型易与叶片粘接的技术问题。本发明方法包括以下步骤：1)制备上缘板构件预制体、下缘板构件预制体和叶身本体预制体；2)分别对各预制体进行氮化硼界面层制备；3)分别对各预制体进行SiC基体制备，叶身本体预制体增密过程中，每一炉沉积需使用新的石墨工装及石墨纸垫在劈缝结构处；4)分别对各预制体进行自愈合基体制备；5)分别对各部件进行加工；将内芯挡板和多个扰流柱进行安装；将各部件进行在线装配，进行沉积并加工得到涡轮导向叶片。
Preparation method of ceramic matrix composite multi-cavity structure high-pressure turbine guide blade
The invention relates to a high-pressure turbine guide blade, in particular to a preparation method of a ceramic matrix composite multi-cavity structure high-pressure turbine guide blade. The technical problems that a ceramic matrix composite high-pressure turbine guide blade component is difficult to form, the size of the blade component is poor, and an embedded crack model is prone to being bonded with the blade are solved. The method comprises the following steps that (1) an upper margin plate component prefabricated body, a lower margin plate component prefabricated body and a blade body prefabricated body are prepared; (2) preparing a boron nitride interface layer for each prefabricated body; (3) SiC base body preparation is conducted on each prefabricated body, and in the blade body prefabricated body densification process, a new graphite tool and a new graphite paper pad need to be used for deposition in each furnace at the position of a crack structure; (4) preparing a self-healing matrix for each prefabricated body; (5) all the parts are machined; an inner core baffle and a plurality of turbulent flow columns are installed; and all the components are assembled on line, and the turbine guide blade is obtained through deposition and machining.
本发明涉及一种高压涡轮导向叶片，具体涉及一种陶瓷基复合材料多腔结构高压涡轮导向叶片的制备方法。解决了陶瓷基复合材料高压涡轮导向叶片构件成型困难、叶片构件尺寸差以及预埋劈缝模型易与叶片粘接的技术问题。本发明方法包括以下步骤：1)制备上缘板构件预制体、下缘板构件预制体和叶身本体预制体；2)分别对各预制体进行氮化硼界面层制备；3)分别对各预制体进行SiC基体制备，叶身本体预制体增密过程中，每一炉沉积需使用新的石墨工装及石墨纸垫在劈缝结构处；4)分别对各预制体进行自愈合基体制备；5)分别对各部件进行加工；将内芯挡板和多个扰流柱进行安装；将各部件进行在线装配，进行沉积并加工得到涡轮导向叶片。
Preparation method of ceramic matrix composite multi-cavity structure high-pressure turbine guide blade
陶瓷基复合材料多腔结构高压涡轮导向叶片的制备方法
LIU MENGZHU (Autor:in) / DU JIAXIN (Autor:in) / TU JIANYONG (Autor:in) / WANG JIAMIN (Autor:in) / CHEN JING (Autor:in) / WU JINGJUN (Autor:in)
29.03.2024
Patent
Elektronische Ressource
Chinesisch
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