Abstract: There is provided a heating device for use in the repair or production of a component of a wind power installation, in particular a rotor blade of a wind power installation. The heating device has a mat with at least one peripherally extending passage open to one side, and a vacuum tube in the at least one passage. The at least one peripherally extending passage divides the mat into a first and a second portion. A heating unit is provided in the region of the first portion. The air in the region of the first portion can be sucked away through the vacuum tube in the at least one passage.

Abstract: A rotor blade or rotor blade element for a wind power installation is provided having a surface film and a hardenable resin, wherein the surface film has been reacted with the resin to form an integral portion of the rotor blade or rotor blade element. Production and repair processes for the rotor blade or the rotor blade element are also provided.

Abstract: The present invention concerns a process for the production of a wind power installation rotor blade. To permit more economical manufacture at high quality the following steps are provided: providing at least one mold, placing a layered fiber composite having at least one core in the mold, wherein the core has a top side with first channel portions and an underside with second channel portions, and connecting portions between the first and second channel portions, and feeding resin, in particular through the first and/or second channel portions, until the layered fiber composite is adequately saturated.

Abstract: A rotor blade or rotor blade element for a wind power installation is provided having a surface film and a hardenable resin, wherein the surface film has been reacted with the resin to form an integral portion of the rotor blade or rotor blade element. Production and repair processes for the rotor blade or the rotor blade element are also provided.