Heizkeilschweißvorrichtung zur flächigen Verbindung von Abdichtungsbahnen mit einer Unterlage und/oder einem Untergrund

The present disclosure relates to a mobile welding device (1) for the surface-to-surface connection of a sealing sheet to a base and/or to a substrate, comprising: - at least one carrier frame assembly (2), which can be moved on the base and/or on the substrate; and - an electric heating-wedge heating apparatus (13), which extends between two opposite longitudinal sides of the carrier frame assembly in a transverse direction; wherein the electric heating-wedge heating apparatus (13) has at least one heating cartridge, to which electric current can be supplied and which has a heating-cartridge preferred longitudinal axis parallel to the transverse direction, and at least two heating wedges, which have a blunt end and a pointed end, the heating wedges being disposed on the heating cartridge such that the heating wedges are spaced apart along the heating-cartridge preferred longitudinal axis (10).