Preparation method for hollow arc-shaped tubular composite material

• Main Authors: LIU TING, ZUO JINGQI, WU ZUSHENG, YANG MINGBO, WANG YILIANG, YI XIAOJUAN, WANG MINGXING
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses a preparation method for a hollow arc-shaped tubular composite material. The preparation method comprises the steps that flow guide cloth, demolding cloth and a reinforcing material are sequentially wound on a rod-shaped core mold, and dehumidifying, heating and demolding are performed to obtain a prefabricated body; a resin flow guide pipe is arranged in an inner cavity of the prefabricated body in a penetrating mode, then a tubular vacuum bag sleeve is placed in the resin flow guide pipe, the prefabricated body is placed in the mold, and a mold cavity of the mold is of an arc-shaped tubular structure; and the mold is vacuumized, a resin system is guided into the mold, the prefabricated body is impregnated by the resin system, and the hollow arc-shaped tubular composite material is obtained through curing and demolding. The preparation method is high in speed, high in efficiency and low in cost, furthermore, raw materials can be separately stored, and the product quality is good. 本发明公