Patent ID: 6821363
Filing Date: 2004-11-23
Classification: C21D,Y02P

Abstract:
A procedure for hardening at least one surface (S, L) of a wall (W) of a component (T)in which the surface to be hardened (S, L) is inductively heated with at least one inductor (2), in which, while heating the surface to be hardened (S, L), a liquid is filled into a gap (P) present between the surface to be hardened (S, L) and the inductor (2), in which, during the heating of the surfaces (S, L) to be hardened, a liquid jet (KA) emitted from a sprayer (3) is aimed at the side (AS) of the wall (W) lying opposite the side (IS) of the wall (W) provided with the surfaces to be hardened (S, L), and in which at least one liquid jet (KI) emitted from an additional sprayer (20) carried by the inductor (2) is aimed at a zone (RZ) of the wall (W) that is adjacent to the surface to be hardened (S, L), and to be precluded from heating by the inductor (2).