METHOD FOR MANUFACTURING TIGHT METAL-GLASS ELECTRICAL CONNECTORS Russian patent published in 2020 - IPC C03C27/02 

FIELD: physics; glass.

SUBSTANCE: invention relates to a method for manufacturing sealed multi-lead electric connectors with eye junctions of glass with metal and can be used in radio engineering, electronic and electrical industries, where high requirements to electric strength and tightness at high pressures are made to products. Method of making sealed metal-glass electrical connectors involves assembling glass pads, a metal body with a baffle and holes, and kovar inputs in a mandrel. Mandrel is made in the form of matrix of the same metal or alloy as body with partition. In the matrix holes are made, which are coaxial to the holes in the casing partition, the diameter of which is not less than the diameter of the corresponding opening in the partition. Graphite bushings with inlet bores are pressed into matrix holes. On ends of bushings on side of glass tablets installation outer and inner chamfers are made, ensuring protrusion of bushings by end face of matrix on (0.1÷0.2) mm. Further, in argon medium, assembly is heated to temperature (1000–1020) °C, holding at this temperature for (30–60) min and cooling to 200 °C with speed of (2–3) °C/min.

EFFECT: technical result is improved quality (tightness and electric strength) and reliability of multi-terminal electric connectors.

1 cl, 2 dwg