Measurement cell of the thermal conductivity for determining the concentration of uranium hexafluoride in 1996

摘要

P measurement cell of the thermal conductivity with a view to determining the concentration of uranium hexafluoride in 1996, comprising four chambers 1 to 4 arranged in a circle and containing the heating wires 1 to 10 connected to a wheatstone bridge, and characterized in that: / p & & p & a.les chambers 1 to 4 are manufactured on the basis of this tubular steel resistant to corrosion and / p & & p & b.les tubular elements are closed at their top by the input 5 in which they are ceramic sodas of the seals 6 of an alloy of iron - nickel which is fixed by brazing to the ceramic and / p & & p & c.les welds between the seal 6 and the insulator 5 are provided with a protective layer of nickel and / p & & p & d.les heating wires 10 are made of nickel and seats in the threads is not the end of a coil 9 polytetrafluorethylene a cross section in the form of a star; / p & & p & e.les electrodes 7, 8 of the insulators 5 are made of nickel or placed each centrally and at each of them is fixed a coil 9 breakthrough of an axial bore, and / p & & p & f.les electrodes 7, 8 are hollow, at least in the region of the ceramic aluminized of the insulators 5. / p