Sealed enclosure which can be used to cover a product based on metal or alloy metallic objects in the form of a continuous or discontinuous scrolling through it a continuous or intermittent manner, according to the axes.

摘要

The present invention relates to an enclosure which can be used for covering continuous or discontinuous objects of elongate shape moving through it continuously or intermittently, along axes of advance which are parallel and offset with respect to the centre of the said enclosure, with a product based on metal or metal alloy, characterised in that it comprises, at each of its ends, at least one electromagnetic (solenoid) valve, each comprising: - a tubular body made of a material which is permeable to magnetic fields, and preferably non wettable by the product based on metal or metal alloy, - at least one polyphase inductor winding arranged around the tubular body to create a magnetic field sliding along the longitudinal axis of the said tubular body, and tending to push back the coating product towards the inside of the enclosure, - a magnetic core integral with the tubular body and extending along its axis, so as to arrange, between it and the inner wall of the tubular body, a passage of suitable shape for the progression of the objects of elongate shape passing longitudinally through the enclosure. The field of the invention is more particularly that of the protection of metallurgical products against corrosion by hot galvanisation methods. IMAGE