Method and installation for inductively heating flat objects

A method for inductively heating a flat object transported in a feed direction (V) with a transverse field inductor device, which extends transversely with respect to the feed direction (V) over the width of the flat object and has a longitudinal axis running parallel to a transverse axis (Q) of the flat object, and another transverse field inductor device, which extends transversely with respect to the feed direction (V) over the width of the flat object and has a longitudinal axis running parallel to the transverse axis (Q) of the flat object, wherein

• the transverse field inductor device comprises at least two conductors, which are not rotatable about longitudinal axes thereof and run in the transverse axis (Q) of the flat object and through which an alternating current flows in series, the transverse field inductor device and the another transverse field inductor device being arranged on opposite sides of the flat object;
• the method comprising:
• transporting the flat object in the feed direction;
• positioning the transverse field inductor device relative to the flat object and relative to the another transverse field inductor device so that a longitudinal axis (L) of the transverse field inductor device is oriented obliquely to the transverse axis (Q) of the flat object in a vertical plane;
• and
• inductively heating the flat object with the transverse field inductor device while the transverse field inductor device is oriented obliquely to the transverse axis (Q) of the flat object in the vertical plane.