PROCESS OF SOLDERING OF FERRITE ARTICLES Russian patent published in 1996 - IPC

FIELD: electrical and radio engineering. SUBSTANCE: conductive sections on ferrite article are formed by plasma discharge between electrodes with discharge energy 6-16 kJ. In process of soldering article is rotated around its axis with speed of 10-20 r.p.m and is moved in horizontal plane with speed 10-20 mm/min under pressure of reducing medium equal to 0.1-0.2 MPa with supply of reducing reagent, for instance, vapors of formic acid on to treated surface. Ultrasonic tinning of treated surface of ferrite article is conducted during discharge period, surface is later connected to metal waveguide under pressure 0.15-0.25 MPa. EFFECT: improved reliability of process. 1 dwg, 2 tbl