Abstract: An apparatus for the plasma coating of a substrate, in particular a press platen, is provided and is used to perform a method to plasma coat the press platen. The apparatus includes a vacuum chamber and, arranged therein, an electrode, which is segmented. Each of the electrode segments has a dedicated connection for an electrical source. Also provided is the method for operating the apparatus. According to the method, a substrate to be coated is positioned opposite the electrode and at least one energy source that is assigned to an electrode segment is activated. Moreover, a gas is introduced, with the effect of bringing about plasma-enhanced chemical vapor deposition on the substrate.

Abstract: An apparatus (100 . . . 103) for the plasma coating of a substrate (2), in particular a press platen, is provided, comprising a vacuum chamber (3) and, arranged therein, an electrode (400 . . . 409), which is segmented, wherein each of the electrode segments (500 . . . 512) has a dedicated connection (6) for an electrical source (700 . . . 702). Also provided is a method for operating said apparatus (100 . . . 103), in which a substrate (2) to be coated is positioned opposite said electrode (400 . . . 409) and at least one energy source (700 . . . 706) that is assigned to an electrode segment (500 . . . 512) is activated. Moreover, a gas is introduced, with the effect of bringing about plasma-enhanced chemical vapor deposition on the substrate (2).

Abstract: A continuous steel strip consisting especially of austenitic or martensitic steel, with at least one weld seam running crosswise to the longitudinal extension of the steel strip, for twin presses. The steel strip includes at least one first surface layer which extends essentially across the entire steel strip and which has a different composition to an intermediate layer located between said first surface and a second surface facing the first. The intermediate layer extends essentially across the entire steel strip. The first surface layer consists of the steel of the steel strip and has regularly positioned heat-influenced areas, e.g., zones, situated next to or overlapping each other and/or fusion penetration areas, e.g., zones.