Patent ID: 9073270
Filing Date: 2015-07-07
Classification: B29B,B29C,B29K,B29L,B32B,F03D,Y02E,Y02P,Y10T

Abstract:
1. A method of manufacturing a wind turbine blade or a part of a wind turbine blade, the method comprising: arranging at least one layer of uncured resin pre-impregnated fibres and at least one layer of fully cured fibre reinforced resin in an at least partly overlaying relationship, applying pressure on the layers arranged together to assemble the layers into a pre-form, the pre-form held together by tackiness of the at least one layer of uncured resin pre-impregnated fibres, the pre-form being assembled before placement of the pre-form on a moulding surface; handling the pre-form before placement of the pre-form on the moulding surface; moving the pre-form onto the moulding surface; and curing the resin of the at least one layer of uncured resin pre-impregnated fibres, thereby manufacturing the wind turbine blade or the part thereof from the pre-form, wherein curing the resin further comprises: absorbing heat energy from the exothermic process of curing resin with the at least one layer of fully cured fibre reinforced resin while the at least one layer of uncured resin pre-impregnated fibres release heat energy in the exothermic process, thereby minimizing the overall temperature increase that needs to be applied to cure the pre-form and also minimizing a risk of material degradation caused by excessive heat application during the curing.