Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of ceramic matrix composite bolts and pins based on long-rod-shaped prefabricated body structure
The invention discloses a preparation method of ceramic matrix composite bolts and pins based on a long-rod-shaped prefabricated body structure, wherein the method is used for solving the problem of non-uniform bearing of 2D and 3DN bolt thread teeth. The method comprises the steps: firstly, designing a fiber prefabricated body into a core body structure formed by bundling unidirectional fibers and a cladding structure formed by weaving fiber bundles; and then determining the number of the fiber bundles of a cladding and a core body, uniformly distributing the unidirectional fiber bundles to form a bundling structure, and binding the bundling structure in the spiral direction by adopting fused glass fibers; then weaving a fiber bundle cladding on the surface of the core body by adopting a weaving method, so as to enable the core body unidirectional fiber bundle prefabricated body to be subjected to compressive stress; sewing the core body and the cladding prefabricated body by adopting the fine fused glass fibers to form a rod-shaped prefabricated body; preparing an interface phase and a ceramic matrix; and finally, processing high-precision threads in a cladding area, preparing a protective coating layer, and thus obtaining a target product. The method is suitable for large-scale low-cost production of the ceramic matrix composite material bolts.
本发明公开了一种基于长棒状预制体结构的陶瓷基复合材料螺栓及销钉制备方法，用于解决2D和3DN螺栓螺纹牙非均匀承载问题。首先将纤维预制体设计为单向纤维集束而成的芯体结构和纤维束编织而成的包层结构。然后确定包层和芯体的纤维束数量，将单向纤维束均匀分布形成集束结构，并采用熔融玻璃丝按螺旋方向捆绑。之后采用编织方法在其表面编织纤维束包层，使得芯体单向纤维集束预制体受压应力。采用细熔融玻璃丝缝合芯体和包层预制体，形成棒状预制体。再制备界面相与陶瓷基体。最后在包层区域加工出高精度螺纹，并制备保护涂层，获得目标产品。本发明适用于大批量低成本生产陶瓷基复合材料螺栓。
Preparation method of ceramic matrix composite bolts and pins based on long-rod-shaped prefabricated body structure
The invention discloses a preparation method of ceramic matrix composite bolts and pins based on a long-rod-shaped prefabricated body structure, wherein the method is used for solving the problem of non-uniform bearing of 2D and 3DN bolt thread teeth. The method comprises the steps: firstly, designing a fiber prefabricated body into a core body structure formed by bundling unidirectional fibers and a cladding structure formed by weaving fiber bundles; and then determining the number of the fiber bundles of a cladding and a core body, uniformly distributing the unidirectional fiber bundles to form a bundling structure, and binding the bundling structure in the spiral direction by adopting fused glass fibers; then weaving a fiber bundle cladding on the surface of the core body by adopting a weaving method, so as to enable the core body unidirectional fiber bundle prefabricated body to be subjected to compressive stress; sewing the core body and the cladding prefabricated body by adopting the fine fused glass fibers to form a rod-shaped prefabricated body; preparing an interface phase and a ceramic matrix; and finally, processing high-precision threads in a cladding area, preparing a protective coating layer, and thus obtaining a target product. The method is suitable for large-scale low-cost production of the ceramic matrix composite material bolts.
本发明公开了一种基于长棒状预制体结构的陶瓷基复合材料螺栓及销钉制备方法，用于解决2D和3DN螺栓螺纹牙非均匀承载问题。首先将纤维预制体设计为单向纤维集束而成的芯体结构和纤维束编织而成的包层结构。然后确定包层和芯体的纤维束数量，将单向纤维束均匀分布形成集束结构，并采用熔融玻璃丝按螺旋方向捆绑。之后采用编织方法在其表面编织纤维束包层，使得芯体单向纤维集束预制体受压应力。采用细熔融玻璃丝缝合芯体和包层预制体，形成棒状预制体。再制备界面相与陶瓷基体。最后在包层区域加工出高精度螺纹，并制备保护涂层，获得目标产品。本发明适用于大批量低成本生产陶瓷基复合材料螺栓。
Preparation method of ceramic matrix composite bolts and pins based on long-rod-shaped prefabricated body structure
基于长棒状预制体结构的陶瓷基复合材料螺栓及销钉制备方法
ZHANG YI (Autor:in) / CHENG LAIFEI (Autor:in) / LI XIAOPING (Autor:in) / FU ZHIQIANG (Autor:in) / CHEN CHAO (Autor:in) / CHEN XU (Autor:in) / WEI CHONG (Autor:in) / LI XUQIN (Autor:in)
05.11.2021
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
Ceramic matrix composite bolt based on long-rod-shaped prefabricated body structure
| Europäisches Patentamt | 2023
High-length-diameter-ratio rod-shaped prefabricated body for ceramic matrix composite fastener
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2024
Preparation and Mechanical Properties of C/SiC Joints with Pins or Bolts
| British Library Online Contents | 2013
Headed Shear Studs versus High-Strength Bolts in Prefabricated Composite Decks
| British Library Conference Proceedings | 2013