08-10-2020, 07:07 AM
Hi Marcus
I assisted Len Southward to make the Radiator tube pressing machine that Replicore (George Mihaljevich ) in Auckland use to Make Tubular Radiators in Hexagon and Round profiles among others.
The tube was imported from Ireland? in long boxes back then I remember and was definitely extruded Brass in an annealed condition. That was back in the late 1970s.
I think the reasoning was Brass was lighter and more durable.
I remember we cut up a few damaged radiators at the time to get samples. The machine cut and champhered the tube ,collated and magazined the matrix very quickly.
The National Radiators Hexagon film machine came from the Dunedin plant. Uses Brass strip fed thru crimping rollers.
I hope this helps.
Steve
I assisted Len Southward to make the Radiator tube pressing machine that Replicore (George Mihaljevich ) in Auckland use to Make Tubular Radiators in Hexagon and Round profiles among others.
The tube was imported from Ireland? in long boxes back then I remember and was definitely extruded Brass in an annealed condition. That was back in the late 1970s.
I think the reasoning was Brass was lighter and more durable.
I remember we cut up a few damaged radiators at the time to get samples. The machine cut and champhered the tube ,collated and magazined the matrix very quickly.
The National Radiators Hexagon film machine came from the Dunedin plant. Uses Brass strip fed thru crimping rollers.
I hope this helps.
Steve