Manufacturing method for composite spar cap for wind power blade

• Main Authors: HUANG ZAIMAN, JIA ZHIYUAN, XUE ZHONGMIN, WANG HAIZHEN, SONG QIUXIANG, CHEN CHUN
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2014
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses a manufacturing method for a composite spar cap for a wind power blade. The manufacturing method comprises the following steps: 1), paving a double sided tape at the outer end of a vacuum opening of a spar cap mould; 2) paving a bottom diversion net, a lower separation film and a piece of lower demolding cloth on the spar cap mould on the inner side of the double sided tape from bottom up; 3), paving and covering mixed woven fabric, carbon fiber fabric and/or glass fiber fabric on the lower demolding cloth to form a mixed fiber preformed body; 4), paving a piece of upper demolding cloth, an upper separation film and a top diversion net on the mixed fiber preformed body from bottom up in sequence; arranging a runner in the moving direction of fibers and reserving a glue injection opening at the same time; finally, integrally covering the part from the top diversion net to the two ends of the spar cap by using a vacuum bag, and reserving a glue injection opening; 5), vacuumizing the vacu