Abstract: A heat exchanger module (1) comprising: two plates (2a, 2b) that are arranged in parallel and spaced from each other by means of two spacing elements (3a, 3b) so as to define a channel (4) for the passage of a fluid product, the channel (4) being delimited by the plates (2a, 2b) and the spacing elements (3a, 3b); two concave shells (5a, 5b), each of the plates (2a, 2b) being integrally fixed to one of the concave shells (5a, 5b); at least one passage (P) for a heat transfer fluid, the passage (P) being defined in a pocket (15) between one of the plates (2a, 2b) and the corresponding concave shell (Sa, 5b), the passage (P) being defined by one or more diverters (18) arranged within the pocket (15).

Abstract: A heat exchanger module (1) comprising: two plates (2a, 2b) that are arranged in parallel and spaced from each other by means of two spacing elements (3a, 3b) so as to define a channel (4) for the passage of a fluid product, the channel (4) being delimited by the plates (2a, 2b) and the spacing elements (3a, 3b); two concave shells (5a, 5b), each of the plates (2a, 2b) being integrally fixed to one of the concave shells (5a, 5b); at least one passage (P) for a heat transfer fluid, the passage (P) being defined in a pocket (15) between one of the plates (2a, 2b) and the corresponding concave shell (Sa, 5b), the passage (P) being defined by one or more diverters (18) arranged within the pocket (15).

Abstract: The present invention refers to an electrolytic treatment device having an anodic compartment comprising a non-chromium (VI) etching solution to be treated and immersed therein an anode. The anodic compartment is separated by a membrane from a cathodic compartment comprising a cathodic solution comprising an inorganic acid, wherein the anode and the cathode are used comprising or consisting of a ternary or higher Pb alloy with Sn and at least one further metal selected from the group consisting of Sb, Ag, Co, Bi and combinations thereof. Moreover, a method for etching plastic parts is provided as well.

Abstract: The present invention refers to an electrolytic treatment device having an anodic compartment comprising a non-chromium (VI) etching solution to be treated and immersed therein an anode. The anodic compartment is separated by a membrane from a cathodic compartment comprising a cathodic solution comprising an inorganic acid, wherein the anode and the cathode are used comprising or consisting of a ternary or higher Pb alloy with Sn and at least one further metal selected from the group consisting of Sb, Ag, Co, Bi and combinations thereof. Moreover, a method for etching plastic parts is provided as well.