Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic matrix composite stud and preparation method thereof
The invention belongs to the technical field of preparation of fasteners, and particularly discloses a ceramic matrix composite stud and a preparation method thereof. The method comprises the following steps: (1) processing a fiber preform according to the design size of a stud; (2) preparing an interface layer on the surface of the fiber preform, wherein the interface layer is a composite interface layer or a gradient interface layer; (3) repeating the steps of dipping, curing and low-temperature cracking for 3-6 times; (4) repeating dipping, curing and high-temperature cracking for 1-3 times; (5) mechanical finish machining; (6) processing threads; (7) repeating the steps of dipping, curing and high-temperature cracking for 1-2 times; (8) performing fine trimming of threads; (9) performing CVI-SiC densification, and obtaining the ceramic matrix composite stud. The method is short in preparation period, and the prepared stud core is high in strength and excellent in mechanical property.
本发明属于紧固件的制备技术领域，具体公开一种陶瓷基复合材料螺柱及其制备方法。（1）、根据螺柱的设计尺寸加工纤维预制体；（2）、在纤维预制体表面制备界面层，所述界面层为复合界面层或梯度界面层；（3）、浸渍‑固化‑低温裂解步骤重复3~6次；（4）、浸渍‑固化‑高温裂解重复1~3次；（5）、机械精加工；（6）、加工螺纹：（7）、重复上述浸渍‑固化‑高温裂解步骤1~2次；（8）、精修螺纹；（9）、CVI‑SiC致密化，即得陶瓷基复合材料螺柱。本发明方法制备周期短，所制备的螺柱芯部强度较高，力学性能优异。
Ceramic matrix composite stud and preparation method thereof
The invention belongs to the technical field of preparation of fasteners, and particularly discloses a ceramic matrix composite stud and a preparation method thereof. The method comprises the following steps: (1) processing a fiber preform according to the design size of a stud; (2) preparing an interface layer on the surface of the fiber preform, wherein the interface layer is a composite interface layer or a gradient interface layer; (3) repeating the steps of dipping, curing and low-temperature cracking for 3-6 times; (4) repeating dipping, curing and high-temperature cracking for 1-3 times; (5) mechanical finish machining; (6) processing threads; (7) repeating the steps of dipping, curing and high-temperature cracking for 1-2 times; (8) performing fine trimming of threads; (9) performing CVI-SiC densification, and obtaining the ceramic matrix composite stud. The method is short in preparation period, and the prepared stud core is high in strength and excellent in mechanical property.
本发明属于紧固件的制备技术领域，具体公开一种陶瓷基复合材料螺柱及其制备方法。（1）、根据螺柱的设计尺寸加工纤维预制体；（2）、在纤维预制体表面制备界面层，所述界面层为复合界面层或梯度界面层；（3）、浸渍‑固化‑低温裂解步骤重复3~6次；（4）、浸渍‑固化‑高温裂解重复1~3次；（5）、机械精加工；（6）、加工螺纹：（7）、重复上述浸渍‑固化‑高温裂解步骤1~2次；（8）、精修螺纹；（9）、CVI‑SiC致密化，即得陶瓷基复合材料螺柱。本发明方法制备周期短，所制备的螺柱芯部强度较高，力学性能优异。
Ceramic matrix composite stud and preparation method thereof
一种陶瓷基复合材料螺柱及其制备方法
ZHANG DONGSHENG (Autor:in) / WU HENG (Autor:in) / CAO WEI (Autor:in) / WEI QINGBO (Autor:in) / YAO DONGJIA (Autor:in) / LIU XIZONG (Autor:in) / PAN GUANGZHEN (Autor:in)
14.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES
,
Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile
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