Abstract: Sectionalized molding of large-scale wind turbine blade mold is an effective way to solve the transportation difficulty and reduce transportation cost, and is also the trend of producing large-scale wind turbine blade mold. In this paper, three key technologies, including geometry accuracy control, pre-expanded air tightness and temperature uniformity control, are described. Taking the test results after the assembling of a certain model of sectionalized wind turbine blade mold as an example, the geometry accuracy, air tightness and temperature uniformity of the mold all meet the requirements of producing the blade. And the feasibility of sectionalized molding of large-scale wind turbine blade mold is proved.

Key words: sectionalized molding, geometry accuracy, air tightness, temperature uniformity