METHOD FOR HEAT TREATMENT OF CUCRZR BRONZE USED IN THE MANUFACTURE OF PRODUCTS WITH BERYLLIUM CLADDING AND BIMETALLIC COMPOUND CuCrZr/316L(N) Russian patent published in 2022 - IPC C21D1/18 B23K1/02 G21B1/11 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, namely to the manufacture of plasma-facing components of an ITER thermonuclear reactor with a beryllium cladding and a bimetallic compound CuCrZr/316L(N). A method for manufacturing plasma-facing components of a thermonuclear reactor consists of a bimetallic billet bronze/steel CuCrZr/316L(N) and beryllium cladding, including heat treatment of the bimetallic billet for a supersaturated solid solution of chromium and copper in CuCrZr bronze with chromium content of 0.6-0.9% and zirconium content of 0.07-0.15% by heating the bimetallic billet to a temperature of 980°C, holding at this temperature for at least 30 minutes and quenching in water and subsequent connection of the beryllium cladding to the bimetallic billet by induction soldering in vacuum. The connection of beryllium cladding to the bimetallic billet by induction soldering in vacuum is carried out when the induction heating zone is located in the steel part of the soldered components, ensuring the heating of the CuCrZr bronze as part of the bimetallic billet and the aging process in the said CuCrZr bronze by heat transfer from the heated steel part, and the connection is carried out by heating in three phases, the first of which performs preliminary uniform heating of the entire component to a temperature of 480°C with a heating rate of 8.5°C/ min, the second suggests further accelerated heating to a temperature of 580°C in CuCrZr bronze with a heating speed of 24°C/min, and at the third stage, rapid heating to a temperature of 680°C in CuCrZr bronze with a heating speed of 48°C/min with solder melting is performed, then the heating is switched off and the components are cooled freely in vacuum.

EFFECT: integrity of the vacuum-dense bimetallic compound is ensured, as well as an increase in the strength of CuCrZr bronze.

1 cl, 2 dwg