Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production process of carbon-carbon composite material wound by composite fiber filaments
The invention discloses a production process of a carbon-carbon composite material wound by composite fiber filaments, which is characterized in that the structure of a crucible/crucible edge is changed (the wall thickness of a carbon-carbon product is reduced), and the fiber filaments are wound on the outer side of the crucible/crucible edge to reduce holes in the surface of the product, so that silicon steam is reduced to enter a corrosion channel of a carbon matrix; as for heat preservation barrels, the deformed heat preservation barrels are machined, compared with finished products, the obtained products have the obvious non-uniform wall thickness phenomenon, after secondary machining, the wall thickness of the products is thinned, carbon fibers are wound on the outer surfaces of the products, and therefore the service life of the crucible/crucible edge products is prolonged. And pretightening force exists in the winding process, so that the product deformation can be effectively reduced, and the product qualification rate is improved. The method can also solve the problem that CVI (Chemical Vapor Infiltration) is slow in crucible/crucible edge densification, the preparation cost is further reduced, and the production efficiency is improved.
本发明公开一种复材纤维丝缠绕碳碳复合材料的生产工艺，通过改变坩埚/埚邦类的结构(减小碳碳产品的壁厚)，在其外侧缠绕纤维丝来减小产品表面的孔洞，减少硅蒸汽进入碳基体的腐蚀通道，从而延长了坩埚/埚邦类产品受硅蒸汽腐蚀的使用寿命，对于保温桶类而言，通过对变形的保温桶进行机加工，所得到产品相较于成品存在明显的壁厚不均匀现象，二次机加工后，产品壁厚变薄，将碳纤维缠绕在其外表面，且缠绕过程带有预紧力，该方式可有效减小产品变形量、提高产品合格率。该方法还可解决了CVI(化学气相渗透法)对坩埚/埚邦增密缓慢的问题，进一步降低了制备成本、提高了生产效率。
Production process of carbon-carbon composite material wound by composite fiber filaments
The invention discloses a production process of a carbon-carbon composite material wound by composite fiber filaments, which is characterized in that the structure of a crucible/crucible edge is changed (the wall thickness of a carbon-carbon product is reduced), and the fiber filaments are wound on the outer side of the crucible/crucible edge to reduce holes in the surface of the product, so that silicon steam is reduced to enter a corrosion channel of a carbon matrix; as for heat preservation barrels, the deformed heat preservation barrels are machined, compared with finished products, the obtained products have the obvious non-uniform wall thickness phenomenon, after secondary machining, the wall thickness of the products is thinned, carbon fibers are wound on the outer surfaces of the products, and therefore the service life of the crucible/crucible edge products is prolonged. And pretightening force exists in the winding process, so that the product deformation can be effectively reduced, and the product qualification rate is improved. The method can also solve the problem that CVI (Chemical Vapor Infiltration) is slow in crucible/crucible edge densification, the preparation cost is further reduced, and the production efficiency is improved.
本发明公开一种复材纤维丝缠绕碳碳复合材料的生产工艺，通过改变坩埚/埚邦类的结构(减小碳碳产品的壁厚)，在其外侧缠绕纤维丝来减小产品表面的孔洞，减少硅蒸汽进入碳基体的腐蚀通道，从而延长了坩埚/埚邦类产品受硅蒸汽腐蚀的使用寿命，对于保温桶类而言，通过对变形的保温桶进行机加工，所得到产品相较于成品存在明显的壁厚不均匀现象，二次机加工后，产品壁厚变薄，将碳纤维缠绕在其外表面，且缠绕过程带有预紧力，该方式可有效减小产品变形量、提高产品合格率。该方法还可解决了CVI(化学气相渗透法)对坩埚/埚邦增密缓慢的问题，进一步降低了制备成本、提高了生产效率。
Production process of carbon-carbon composite material wound by composite fiber filaments
一种复材纤维丝缠绕碳碳复合材料的生产工艺
LI GUOQIANG (Autor:in) / SHAO ZHONG (Autor:in)
01.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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