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Ceramic matrix composite part deposition correcting tool and method
The invention relates to a ceramic matrix composite part deposition correcting tool and method, and aims to solve the problems that a ceramic matrix composite part prefabricated body is subjected to high-temperature deformation when continuously deposited after being demolded, and a traditional correcting method is difficult to guarantee the accuracy of the appearance of a part and also influences the deposition effect. The tool comprises a shaping plate made of a ceramic matrix composite, a shaping groove is formed in the shaping plate, the shape of the shaping groove is matched with the profile of the cross section of a part to be shaped, and the width h of the shaping groove is 1-3mm larger than the wall thickness of the part to be shaped; and the inner wall of the sizing groove is sawtooth-shaped, sawteeth on the inner walls of the two opposite sides of the sizing groove are distributed in a staggered mode, and the sawtooth end face width is larger than the distance between every two adjacent sawtooth end faces. The shape correcting method comprises the steps that (1) at least one shape correcting plate made of the ceramic matrix composite is taken, and a shape correcting groove is machined in the shape correcting plate according to the section outline of a to-be-corrected part; (2) a to-be-corrected part is mounted in the shaping groove and fixed; and (3) CVI deposition is carried out on the to-be-corrected part with the shape correcting plate, and shape correcting is carried out at the same time.
本发明涉及一种陶瓷基复合材料零件沉积校型工装及方法，以解决陶瓷基复合材料零件预制体在脱模后继续沉积时会出现高温变形情况，而传统的校型方法难以保证零件外型准确，还会影响沉积效果的问题。该工装包括陶瓷基复合材料的校型板，校型板上设置有校型槽，校型槽的形状与待校型零件的截面轮廓相匹配，且其宽度h比待校型零件壁厚宽1‑3mm；校型槽的内壁为锯齿状，且其相对两侧内壁的锯齿交错分布，锯齿端面宽度大于相邻两个锯齿端面间的距离。校型方法包括：1)取至少一个陶瓷基复合材料的校型板，按照待校型零件的截面轮廓，在校型板上加工校型槽；2)将待校型零件装入校型槽内并固定；3)对带有校型板的待校型零件进行CVI沉积，同时进行校型。
Ceramic matrix composite part deposition correcting tool and method
The invention relates to a ceramic matrix composite part deposition correcting tool and method, and aims to solve the problems that a ceramic matrix composite part prefabricated body is subjected to high-temperature deformation when continuously deposited after being demolded, and a traditional correcting method is difficult to guarantee the accuracy of the appearance of a part and also influences the deposition effect. The tool comprises a shaping plate made of a ceramic matrix composite, a shaping groove is formed in the shaping plate, the shape of the shaping groove is matched with the profile of the cross section of a part to be shaped, and the width h of the shaping groove is 1-3mm larger than the wall thickness of the part to be shaped; and the inner wall of the sizing groove is sawtooth-shaped, sawteeth on the inner walls of the two opposite sides of the sizing groove are distributed in a staggered mode, and the sawtooth end face width is larger than the distance between every two adjacent sawtooth end faces. The shape correcting method comprises the steps that (1) at least one shape correcting plate made of the ceramic matrix composite is taken, and a shape correcting groove is machined in the shape correcting plate according to the section outline of a to-be-corrected part; (2) a to-be-corrected part is mounted in the shaping groove and fixed; and (3) CVI deposition is carried out on the to-be-corrected part with the shape correcting plate, and shape correcting is carried out at the same time.
本发明涉及一种陶瓷基复合材料零件沉积校型工装及方法，以解决陶瓷基复合材料零件预制体在脱模后继续沉积时会出现高温变形情况，而传统的校型方法难以保证零件外型准确，还会影响沉积效果的问题。该工装包括陶瓷基复合材料的校型板，校型板上设置有校型槽，校型槽的形状与待校型零件的截面轮廓相匹配，且其宽度h比待校型零件壁厚宽1‑3mm；校型槽的内壁为锯齿状，且其相对两侧内壁的锯齿交错分布，锯齿端面宽度大于相邻两个锯齿端面间的距离。校型方法包括：1)取至少一个陶瓷基复合材料的校型板，按照待校型零件的截面轮廓，在校型板上加工校型槽；2)将待校型零件装入校型槽内并固定；3)对带有校型板的待校型零件进行CVI沉积，同时进行校型。
Ceramic matrix composite part deposition correcting tool and method
一种陶瓷基复合材料零件沉积校型工装及方法
YANG YUNYUN (author) / LIAO JUNGANG (author) / TIAN LULU (author) / LI MOYIN (author)
2021-04-16
Patent
Electronic Resource
Chinese
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