SOLDER WIRE AND METHOD OF ITS PRODUCTION, HERMETIC CONNECTOR AND METHOD OF ITS PRODUCTION Russian patent published in 2013 - IPC B23K35/40 H01B17/26 

FIELD: process engineering.

SUBSTANCE: invention relates to production of high-precision instruments and electronic components. Solder wire composed of single-row helical spiral with the number of turns wherein total volume of solder exceeds that of annular clearance for forming of soldered seam between parts, spiral ID is sized to allow coil stringing on one of parts being soldered together. In compliance with proposed method, turns are cut in radial direction to mirror axis of turns by cutting length with several turns from spiral. Note here that volume of cut turns corresponds to amount of solder sufficient for making seam between parts being soldered together. Hermetic connector has inner isolator that allows stringing, before seam formation, of solder spiral thereon. Note here that outer and inner isolators make two different-diameter annular clearances.

EFFECT: lower costs, higher reliability and quality in operation in severe conditions.

6 cl, 11 dwg