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Rotating plug

Computed tomography was used in a recent study to record the postweld position of a lead tracer wire (Ref 31). At the expected welding temperature of aluminum alloys, the lead wire would be molten. The constraint of the molten metal between the rotating plug of metal and the parent material allowed the lead to trace out a continuous flow path. The FSW was made with a 250 pm (10 mils) lead wire placed in the faying surfaces 1.3 mm (0.05 in.) from the shoulder surface and 6.4 mm (0.25 in.) offset to the AS in a 0.82 cm (0.32 in.) thick panel of 2195-T81... [Pg.43]

MPa Helical coil Single rotating plug with fixed arm FHM 6 months... [Pg.44]

FUSION OF THE LARGE ROTATING PLUG LIQUEFIABLE METAL SEAL... [Pg.94]

During neutronic tests at nominal power < 3 %, the metai to metal supports of the rotating plugs were heated 48 hours before reactor shutdown. This action, which is compatible with the current tests, also led to unintentional heating of the liquefiable metal seal (JML), the liquid status of which is incompatible with reactor criticality... [Pg.94]

At present time the protective liquid is replaced once a year in accordance with the reactor maintenance schedule. Up to 1994 pre-operation driving of the rotating plugs caused no major problems - it used to take a number of hours and the time was spent mostly to better heat up the eutectic. Since the autumn... [Pg.107]

FIG. 13. Scheme of the BN-600 reactor vessel with rotating plugs. [Pg.143]

The top shield includes roof slab and two rotatable plugs. Warm roof concept is adopted for top shield to minimise sodium deposition in the annular gaps. The roof slab is a box type structure filled with concrete as the shielding material. It supports the main vessel, primary sodium pumps, IHX, and direct reactor heat exchangers (DHX) of the decay heat removal system. Use of liquid metal seals has been avoided in order to reduce the rotatable support... [Pg.186]

In-vessel handling is carried out using two rotatable plugs and an offset (fixed) arm type fuel handling machine (IVTM). An ultrasonic scanner is provided in order to check projection of any SA/absorber rods above the top of the core before starting in-vessel transfer operation. Additionally, strict administrative control on interlocks is to be provided. An Inclined fuel transfer machine (IFTM) is used to transfer the subassemblies from the main vessel to outside. [Pg.195]

Alloy is heated in the freezing seals of rotating plugs ... [Pg.116]

Refueling system 2 rotating plugs, vertical refueling mechanism... [Pg.122]

Before beginning reactor dismantling, all its components will have been removed from the slab (except for the core cover plug and the rotating plugs). [Pg.196]

Cladding outer diameter/thickness 6.5 / 0.47 mm Refueling system Single rotating plug ... [Pg.118]

See other pages where Rotating plug is mentioned: [Pg.14]    [Pg.22]    [Pg.23]    [Pg.14]    [Pg.221]    [Pg.38]    [Pg.61]    [Pg.65]    [Pg.68]    [Pg.107]    [Pg.108]    [Pg.142]    [Pg.152]    [Pg.157]    [Pg.162]    [Pg.186]    [Pg.12]    [Pg.158]    [Pg.384]    [Pg.116]    [Pg.124]    [Pg.150]    [Pg.167]    [Pg.193]    [Pg.193]    [Pg.197]    [Pg.16]    [Pg.16]    [Pg.27]    [Pg.49]    [Pg.86]    [Pg.89]    [Pg.147]    [Pg.49]    [Pg.49]    [Pg.58]    [Pg.95]   
See also in sourсe #XX -- [ Pg.286 , Pg.288 ]



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