METHOD OF MANUFACTURE OF BIMETALLIC WIRE FROM PRECIOUS METALS Russian patent published in 2017 - IPC B23K20/04 B32B15/02 C22C5/02 

FIELD: metallurgy.

SUBSTANCE: method of manufacturing a bimetallic wire made of precious metals containing a core and a shell includes rolling a bimetallic semi-finished product. A silver rod is used as the core, and as a casing, a ribbon made from a 585-alloy gold alloy containing, wt %, gold 58.0-59.0, silver 7.5-8.5, iridium 0.001- 0,05, rhodium 0,001-0,1, copper - the rest. The rolled strip is folded around the core provided that the cross-sectional areas of the core and the bimetallic half-finished product are 0.27-2.6, the bimetallic semi-finished product is subjected to long rolling without preheating, followed by drawing.

EFFECT: increasing the mechanical and operational characteristics of finished products.

2 tbl, 2 dwg