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Fusion siliconizing tool and method for embedding powder inside and outside 2D and 3DN ceramic matrix composite components
The invention relates to a fusion siliconizing tool and method for embedding powder inside and outside 2D and 3DN ceramic matrix composite components. The invention aims to solve the problems that in the RMI process preparation process of large-size circular-section 3DN spray pipe preforms in 2D and 3DN ceramic matrix composite components, 2D parts are prone to being eroded by silicon melt, so that the performance is degraded, the process of high-temperature modification of the 3DN spray pipe preforms at the contact face positions of the 2D parts and the 3DN spray pipe preforms and the process of overall densification of the components are very difficult, and the 3DN spray pipe preforms are easy to deform in the modification process. The tool comprises a crucible, a 2D part graphite protection tool, a graphite column, a graphite supporting sheet, a graphite inner support, a composite deformation control tool and (N-1) first annular graphite paper laminations, wherein N is larger than or equal to 3. The method is carried out by utilizing the tool, the technological methods of pre-tool protection of the 2D part b, internal and external powder embedding and filling and the like are adopted, the near-net size RMI process of the large-size circular-section ceramic matrix composite component is achieved in cooperation with the special tool, and the subsequent machining and assembling difficulty is reduced.
本发明涉及一种2D、3DN陶瓷基复合材料组件内外埋粉熔融渗硅工装及方法，目的是解决对2D、3DN陶瓷基复合材料组件中大尺寸圆截面3DN喷管预制体RMI工艺制备过程中存在2D零件易受硅熔体侵蚀导致性能劣化、2D零件与3DN喷管预制体接触面部位的3DN喷管预制体高温改性、组件整体致密化的工艺难度大，以及改性过程3DN喷管预制体易变形的技术问题。该工装包括坩埚、2D零件石墨防护工装、石墨柱、石墨托片、石墨内托和复材变形控制工装，以及(N‑1)个第一环形石墨纸叠层；N≥3。该方法利用该工装进行，采用2D零件b预先工装防护、内外埋粉填料等工艺方法，配合专用工装实现大尺寸圆截面陶瓷基复合材料组件近净尺寸RMI过程，减少了后续加工装配难度。
Fusion siliconizing tool and method for embedding powder inside and outside 2D and 3DN ceramic matrix composite components
The invention relates to a fusion siliconizing tool and method for embedding powder inside and outside 2D and 3DN ceramic matrix composite components. The invention aims to solve the problems that in the RMI process preparation process of large-size circular-section 3DN spray pipe preforms in 2D and 3DN ceramic matrix composite components, 2D parts are prone to being eroded by silicon melt, so that the performance is degraded, the process of high-temperature modification of the 3DN spray pipe preforms at the contact face positions of the 2D parts and the 3DN spray pipe preforms and the process of overall densification of the components are very difficult, and the 3DN spray pipe preforms are easy to deform in the modification process. The tool comprises a crucible, a 2D part graphite protection tool, a graphite column, a graphite supporting sheet, a graphite inner support, a composite deformation control tool and (N-1) first annular graphite paper laminations, wherein N is larger than or equal to 3. The method is carried out by utilizing the tool, the technological methods of pre-tool protection of the 2D part b, internal and external powder embedding and filling and the like are adopted, the near-net size RMI process of the large-size circular-section ceramic matrix composite component is achieved in cooperation with the special tool, and the subsequent machining and assembling difficulty is reduced.
本发明涉及一种2D、3DN陶瓷基复合材料组件内外埋粉熔融渗硅工装及方法，目的是解决对2D、3DN陶瓷基复合材料组件中大尺寸圆截面3DN喷管预制体RMI工艺制备过程中存在2D零件易受硅熔体侵蚀导致性能劣化、2D零件与3DN喷管预制体接触面部位的3DN喷管预制体高温改性、组件整体致密化的工艺难度大，以及改性过程3DN喷管预制体易变形的技术问题。该工装包括坩埚、2D零件石墨防护工装、石墨柱、石墨托片、石墨内托和复材变形控制工装，以及(N‑1)个第一环形石墨纸叠层；N≥3。该方法利用该工装进行，采用2D零件b预先工装防护、内外埋粉填料等工艺方法，配合专用工装实现大尺寸圆截面陶瓷基复合材料组件近净尺寸RMI过程，减少了后续加工装配难度。
Fusion siliconizing tool and method for embedding powder inside and outside 2D and 3DN ceramic matrix composite components
2D、3DN陶瓷基复合材料组件内外埋粉熔融渗硅工装及方法
SHI SITAO (author) / SU HAILONG (author) / WANG PENG (author) / ZHANG SHAOBO (author) / ZHANG QIAN (author) / KANG ZHIJIE (author) / LI RENYI (author) / SONG HAILONG (author) / MA WENKE (author) / YANG PAN (author)
2022-01-18
Patent
Electronic Resource
Chinese
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