Central Technological Library of the University of Ljubljana (CTK)
13.
Hermetic sealing off the stainless steel pumping tube
Pregelj, Andrej ...
Izdelava posebnih ampul za preiskave alkalnih kovin zahteva nekatere zahtevne operacije kot so pričvrstitev 0,008 mm membrane iz nerjavnega jekla, fiksiranje le te na masivni obroč, vakuumsko tesno ...odščipanje tankostenskih cevi iz nerjavnega jekla. Pri zadnji operaciji, ki je bolj običajna za bakrene in zlate cevi, smo uspešno prenesli izkušnje tudi na cevi iz nerjavnega jekla. Namesto hladnega varjenja smo uporabili kombinacijo hladnega in vročega varjenja. Preiskovali smo geometrijo stisnjene cevi in nastanek zvara pri različnih dimenzijah cevi in tlakih. Tesnost in razplinjanje smo prav tako testirali. V prispevku prikazujemo nekatere pomisleke v zvezi s tehnologijo in nekatere rezultate testov, ki še niso bili nikjer objavljeni.
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