APPLICATION OF COPPER ALLOY Russian patent published in 2021 - IPC B22D11/59 C22C9/00 

FIELD: foundry production.

SUBSTANCE: invention relates to the field of foundry production, in particular to a method for obtaining and using a copper alloy as a material for casting molds or for structural parts of casting molds selected from the following group, including: mold plates, mold tubes, casting wheels, casting rolls, casting rollers, melting crucibles. At the same time, the copper alloy contains, by wt. %: silver (Ag) 0.020-0.50, zirconium (Zr) 0.050-0.50, phosphorus (P) maximum 0.060, chromium (Cr) maximum 0.005, alloying elements and unavoidable impurities ≤ 0.50 and copper (Cu) the rest. The method for producing a copper alloy includes its casting, hot forming at temperatures between 600 and 1000°C, cooling at a speed of 50-2000 K/min, cold forming by 10-50% and dispersion hardening at temperatures between 350-500°C or solid solution treatment at temperatures between 600 and 1000°C, cold forming by 10-50% and dispersion hardening at temperatures of 350-500°C.

EFFECT: use of the invention makes it possible to increase the service life of foundry molds or their structural parts.

6 cl