S-shaped structural member mold and method for preparing S-shaped structural member using the same
A technology for structural components and forming molds, which is applied in the field of S-shaped structural component molds and the use of the molds to prepare S-shaped structural components, which can solve problems such as difficulty in shaping and sewing, difficulty in demoulding, and eccentric positioning of molds, and achieve a simple sewing process Convenience, convenient sewing, precise positioning effect
Active Publication Date: 2022-06-21
XIAN XINGUI CERAMIC COMPOSITE MATERIAL CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a forming die and method of SiC / SiC and C / SiC composite fiber fabrics of a complex S-shaped structure, in order to solve the problem of existing complex S-shaped structure SiC / SiC and C / SiC composite fiber fabrics The forming mold adopts the overall structure of solid inner and outer molds. Through the molding process of manually controlling the relative positions of the inner and outer molds, there are problems such as difficult demoulding, eccentric mold positioning, and difficulty in shaping and sewing during the molding process.
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[0073] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0074] combine Figure 1 to Figure 19 It can be seen that the S-shaped structural member forming mold in this embodiment includes a limit tool 4, an outer mold 1, an inner mold 2 and a core mold; the limit tool 4 is used to control the relative positions of the inner and outer molds 1, so that the inner and outer molds 1 The mold is smoothly clamped and fixed to ensure that the fiber fabric 31 is not eccentric and the wall thickness is consistent.
[0075] like image 3 As shown, the limit tool 4 includes a tray bottom plate 40, an outer mold limit block 41 and an inner mold limit block 42; the tray bottom plate 40 is a circular bottom plate, and a concentric annular limit groove is formed along the upper surface of the circular bottom plate. 47; Outer mold 1, inner mold 2 and core mold are all annular, the inner ring surface of outer mold 1 an...
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The invention relates to an S-shaped structural component mold and a method for preparing an S-shaped structural component using the mold, which solves the problem that the existing complex S-shaped structural SiC / SiC and C / SiC composite fiber fabric forming molds adopt solid inner and outer molds The overall structure, through the molding process of manually controlling the relative positions of the inner and outer molds, there are problems in the molding process such as difficulty in demoulding, eccentric mold positioning, and difficulty in shaping and sewing. The mold includes position-limiting tooling, an outer mold, an inner mold and a core mold; the invention divides the core mold into three parts: the first core mold, the third core mold and the second core mold, and the inner cavity is hollow. When the core mold is pulled out, the first core mold, the third core mold and the second core mold are sequentially removed. The third mandrel can be pulled out from the wide opening of the fiber fabric, and the second mandrel can be removed from the wide opening of the fiber fabric after being broken. The demoulding is simple, and the roundness and wall thickness of the fiber fabric are guaranteed through the design of the positioning tool. Require.
Description
technical field [0001] The invention relates to an S-shaped structural member mold and a method for preparing an S-shaped structural member by using the mold. Background technique [0002] S-shaped structural member is an important part of aero-engine, and it is a device in which fuel or propeller burns to generate high-temperature fuel. [0003] SiC / SiC composite material is a new type of thermal structure / function integrated material, with low density, high temperature resistance, high specific strength, high specific modulus, oxidation resistance, ablation resistance, insensitivity to cracks, no catastrophic damage, etc. Features. The S-shaped structural components are made of silicon carbide cloth laminates, and their appearance is regular, ensuring a smooth gas field during the chemical vapor infiltration (CVI) process, and the components are integrally formed and have strong continuity without online riveting. [0004] Existing forming molds for SiC / SiC and C / SiC com...
Claims
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IPC IPC(8): B29C33/30B29C70/46B29C33/48
CPCB29C33/302B29C33/30B29C70/462B29C33/485B29L2031/749
Inventor 康志杰张少博宋海龙赵晖史思涛
Owner XIAN XINGUI CERAMIC COMPOSITE MATERIAL CO LTD