AND you don't need loctite ! A couple wraps of plumber teflon tape on the fixed cup, lite grease in the bottom bracket, and decent tightening will suffice. It does not require beating into submission. (Take a look at the bottom bracket tool in the Campy tool box and notice that it doesn't appear to have been designed to beat on) I haven't ever had a fixed cup come loose over the last 35 years or so.

Same goes for the tapers. Lite grease and proper torque has always worked for me. Once again the Campy tool will provide a fine reference.
Aluminium/steel/no lube ? ? I don't think so.

YMMV of course. It's your bike, do as you like