ECOLOGICALLY PURE ALLOY AND COLD-ROLLED BAR FOR COLLECTORS OF ELECTRIC MACHINES Russian patent published in 2007 - IPC C22C9/00 H01R43/06 

FIELD: metallurgy, in particular, alloys for manufacture of bars for collectors of electric machines, more particular, copper-based alloy for collectors of electric machines and cold-rolled bar manufactured therefrom.

SUBSTANCE: alloy contains, %: tin above 0.1-0.24; silver 0.02-0.08; phosphor up to 0.015; admixtures up to 0.2; copper the balance. Admixtures content: lead below 0.01; iron below 0.02; bismuth below 0.003; sulfur below 0.01; oxygen below 0.01. Cold-rolled bar for manufacture of collectors for electric machines has cross section made in the form of isosceles trapezium. Low alloy of such composition is technologically effective in plastic working, welding and soldering processes used in manufacture of collectors for electric machines.

EFFECT: ecologically pure, safe in production and technologically effective low alloy.

3 cl