COPPER CASTING ALLOY FOR ASYNCHRONOUS MACHINES Russian patent published in 2018 - IPC C22C9/00 C22C1/02 H02K17/16 

FIELD: electricity.

SUBSTANCE: invention relates to the copper casting alloys and can be used for the conductive structural parts manufacturing by casting, in particular, short-circuited rotors for asynchronous machines. Cast copper alloy contains, by wt.%: Ag from 0.05 to 0.5, in each case from 0.05 to 0.5 of at least two elements from the group consisting of Ni, Zn, Sn and Al, optionally from 0.01 to 0.2 of one or more elements from the group consisting of Mg, Ti, Zr, B, P, As, Sb, Cu, and incidental impurities - the balance. Furthermore, the invention relates to the conductive structural part as well as the short-circuited rotor with multiple conductive rods and two closing rings, which are cast from the copper alloy in the form of single piece.

EFFECT: invention is aimed at increase in the conductive structural parts strength and conductivity, as well as the copper alloy casting properties improvement.

14 cl, 1 tbl