Herstellungsverfahren für ein Windturbinenblatt und eine Vorimprägnierte Schicht Dafür.

Details

Veröffentlichungs-Nr.

EP4049835

Aktenzeichen

EP21159147

Anmeldetag

25. Februar 2021

Veröffentlichung

31. August 2022

Rechtsraum

EP

IPC

B29C70/20B29C70/44B29C70/54B29D99/00F03D1/06B29L31/08

Abstract

The present invention relates to a pre-impregnated fibre sheet (20a,20b) extending in a longitudinal direction and in a transverse direction and comprising a first fibre layer (21) forming part of an upper surface of the pre-impregnated fibre sheet and a second fibre layer (22) forming part of a lower surface of the pre-impregnated fibre sheet, wherein the first fibre layer is pre-impregnated with an adhesion promotor. The present invention further relates to methods of manufacturing a blade shell member or wind turbine blade comprising a pre-manufactured spar cap (100) and a number of pre-impregnated fibre sheets (20a,20b) arranged to obtain an improved adherence between the blade shell (80) and pre-manufactured spar cap, particularly when the pre-manufactured spar cap is resin infused with vinyl ester or epoxy resin and the blade mould is resin infused with polyester.

Anmelder

Firma

LM Wind Power A/S

Land

🇩🇰 Dänemark

Fachgebiete