Plant for the surface processing of parts

C - Chemistry – Metallurgy – 25 – D

Patent

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Details

C25D 17/00 (2006.01) C25D 17/06 (2006.01)

Patent

CA 2759223

The invention relates to a machine for the surface processing of metal parts by immersion into at least one processing liquid contained in a processing tank comprising a plurality of tanks (101, 102, 103) arranged in series and to a device for transferring the parts between the tanks, said tanks each including a rotary structure (801, 802, 803) mounted on a rotation axis (810, 80, 830) for receiving said parts submerged by a rotation movement of the rotary structures such that the air bubbles generated by the immersion of the parts are chased from the surfaces thereof, machine in which said rotation axis are rotatingly rigidly connected and driven by a common driving device. The tanks arranged in series may be contiguous and the rotation axes of the rotary structures may be aligned and assembled so as to form a common rotation axis extending through the entire machine. The rotation axis (810) of the processing tank is electrically insulated from the other axis portions (820, 830) and connected to a power generator, in particular via a rotary connector (806) arranged at one end of the axis. The downstream tank in the series is a steaming tank (112) supplied with hot air. The machine is housed in a casing that comprises means for confining and reprocessing all the fluids from the machine.

Une machine de traitement de surfaces de pièces métalliques par immersion dans au moins un liquide de traitement contenu dans une cuve de traitement, comprenant une pluralité de cuves (101, 102, 103) agencées en série et un dispositif de transfert de pièces entre les cuves, lesdites cuves comprenant chacune une structure rotative (801, 802, 803) montée sur un axe de rotation (810, 820, 830),pouvant accueillir lesdites pièces, immergées par un mouvement de rotation des structures rotatives de telle sorte que les bulles d'air créées par l'immersion des pièces sont chassées de leurs surfaces,machine dans laquelle lesdits axes de rotation sont solidaires en rotation et entraînés par un dispositif d'entraînement commun. Les cuves agencées en série peuvent être contiguës et les axes de rotation des structures rotatives alignés et assemblés de façon à former un axe de rotation commun traversant l'ensemble de la machine. L'axe de rotation (810) de la cuve de traitement est isolé électriquement des autres parties d'axe (820, 830) et connecté à un générateur électrique, en particulier au moyen d'un connecteur tournant (806) agencé à une extrémité de l'axe. La cuve aval de la série est une cuve d'étuvage alimentée(112)en air chaud. La machine est logée dans un caisson comprenant des moyens de confinement et de retraitement de l'ensemble des fluides émanant de la machine.

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