Abstract: Equipment for metallic part hardening treatment comprising a support (10) and at least one working unit (50). The support is adapted to rotate the metallic part (20) during a hardening treatment. The working unit (50) comprises an inductor winding (51) to be positioned in front of a portion of said metallic part for heating said surface. According to the invention, the support (10) comprises one fixed spindle (11) to secure a first end (21) of the metallic part and one mobile tail stock (12) to contact a second end (22) of the metallic part. Therefore, only one end of the metallic part is secured whereas the other end is free to expand. The mechanical stresses applied to the metallic part during the hardening treatment are reduced and the distortion of the metallic part is prevented. Such equipment is well suited to crankshaft hardening treatment.

Abstract: Thermal insulation screen transparent to magnetic flux, intended to isolate an electromagnetic inductor with a transverse or pseudo-transverse field, from the radiation of a heated product (1), the thermal screen being made up of a matrix of blocks (7) made of a thermally insulating material and of a plurality of tubes (8) cooled by the circulation of a fluid, these tubes being imprisoned in said matrix of blocks and the tubes and the blocks being held in place by a support. The screen includes, behind the blocks, heat-conducting means (10) placed so as to intercept the heat flux passing through the blocks, these conducting means being thermally coupled to the cooled tubes (8) for discharging the heat flux into the tubes.

Abstract: The device for heating by electromagnetic induction of a metal strip (A) comprises at least one inductor coil (B) which surrounds an area of the strip in a transversal manner in relation to the longitudinal direction of the strip. The coil (B) comprises at least one monoturn (1) whose median plane (P) is orthogonal in relation to the longitudinal direction (D) of the strip.