Integrated molding process for blades for wind power generation

Abstract

The invention discloses an integrated molding process for blades for wind power generation. The process comprises the following steps of: laying an upper shell reinforcing material and a shearing rib reinforcing material in an upper mold; laying a vacuum bag film above the upper shell reinforcing material and the shearing rib reinforcing material; molding an upper shell and shearing ribs; laying airbags above the vacuum bag film, and laying a lower shell reinforcing material in a lower mold; carrying out mold matching on the upper mold and the lower mold, sealing mold-matched seams, and thus, the upper mold and the lower mold form a closed space; forming a lower shell by integrated molding; and demolding and cleaning. The integrated molding process has the benefits that the problems of long production cycle, high cost, low bonding strength, and the like caused by the fact that the upper shell and the lower shell are respectively molded and then bonded, in the traditional production process are solved, and internal cavities of the molded blades are effectively enabled to be consistent in shape by adopting the airbags.

Description

technical field [0001] The invention relates to a forming process of wind power generation blades, in particular to an integrated forming process of wind power generation blades. Background technique [0002] In today's society where energy is increasingly scarce, the development of new energy has become the general trend. As an inexhaustible and inexhaustible renewable emerging energy, wind energy is the first alternative energy at home and abroad, and it is the most potential sustainable development project. [0003] Wind power blades are one of the core components of wind turbines. In the traditional production process, the upper and lower molds are used to prefabricate the upper shell and the lower shell respectively, and then the two are bonded together by adhesive. The two shells are connected as a whole. This method has a long production cycle, complicated process, increased cost, and many unstable factors. Moreover, problems such as weak bonding and bonding voids ar...

AI Technical Summary

Problems solved by technology

[0003] Wind power blades are one of the core components of wind turbines. In the traditional production process, the upper and lower molds are used to prefabricate the upper shell and the lower shell respectively, and then the two are bonded together by adhesive. The two shells are connected as a whole. This method has a long production cycle, complicated process, increased cost, and many unstable factors. Moreover, problems such as weak bonding and bonding voids are prone to occur in the way of bonding with adhesives. During use, there will be quality problems of cracking or even breaking of the blade due to the aging of the adhesive

[0004] Therefore, there is an urgent need to develop a new molding process to avoid or reduce the use of adhesives in the blade molding process, and there is currently no reliable alternative process

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