Le Carbone Lorraine

Mersen France Py Sas

Ernest Totino

Bernard Gouthier

Christian Hug

Alain Mathieu

Gilles Braussen

Pascal Gautier

Emmanuel Kelbert

Ghislaine Deswert

Henri Wojtusciszyn

Method for producing coated assembly parts for chemical device elements including the following series of steps:

Zirconium-coated steel plates and chemical device elements produced with such plates

The aim of the present invention is a manufacturing process for assembly parts ( ) for the manufacture of elements of chemical devices ( ), comprising the fixation of an anticorrosion metallic coating ( ) on an unprocessed assembly part ( ), by means of an operation comprising a brazing operation under a controlled atmosphere and, possibly, the shaping of the coated part ( ), by plastic deformation. The brazing temperature is preferentially less than approximately 750&deg; C., and more preferentially between 600&deg; C. and 720&deg; C. The process according to the invention makes it possible to fix solidly on a steel plate an anticorrosion coating with a thickness less than 1 mm.

Manufacturing process for an element of a chemical device comprising a support part in metal and an anticorrosion metallic coating

The aim of the present invention is a process for manufacturing a plated product ( ) comprising a support part in steel ( ) and an anticorrosion metallic coating ( ), characterized in that the anticorrosion coating ( ) is fixed on the support part ( ) by controlled-atmosphere brazing, in particular by vacuum brazing. The process according to the invention makes it possible to fix solidly an anticorrosion coating with a thickness smaller than 1 mm on a steel plate.

Manufacturing process for a plated product comprising a support part in steel and an anticorrosion metallic coating

A bellows for connecting hoses or apparatus operating in a partial vacuum including a corrugated tube reinforced on the outside by rings at the troughs of the corrugations. The tube further includes toric reinforcing rings on the inside of the crests of the corrugations, the length of the rings being adjustable so as to adapt to the deformation of the corrugations in service.

Bellows for connecting hoses or apparatus for operation in a vacuum

A magnetically drive centrifugal pump comprises a fixed assembly formed by a pump barrel made of a carbonaceous material, rigid annular bearings and a non-magnetic, non-electrically conductive sealing shell, and a rotating assembly formed by an impeller made of a carbonaceous material, a cylindrical rotor made of a carbonaceous material and having sealed therein permanent tracking magnets. The rotor is fixed directly to the impeller to form an impeller-rotor assembly which rests on the annular bearings. The driver includes magnets which interact with the permanent tracking magnets of the rotor in order to drive the pump, the driver being isolated from the impeller-rotor assembly by the sealing shell. The impeller-rotor assembly includes a secondary circuit for circulation of transported fluid located between the impeller-rotor assembly and the sealing shell.

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Ruffine, France

Ernest Totino