摘要 |
An aluminum electrolytic capacitor is housed in an aluminum can (20) having one open end. A standard glass-to-metal seal (30) having an outer tantalum rig (34) is seated snugly within the mouth of the can. With the edge (38) of the tantalum ring positioned flush with, or slightly below, the lip (39) of the aluminum can, a beam of the pulsing infra-red laser is directed at the interface between the tantalum ring (34) and aluminum lip (39), causing the lip to melt, to flow over, and to form a continuous annular Al-Ta weld with the tantalum ring, so as hermetically seal the ring (34) to the can continuously and completely at a peripheral edge (38) of the tantalum ring. <IMAGE> |
申请人 |
SPRAGUE ELECTRIC CO., NORTH ADAMS, MASS., US |
发明人 |
HUTCHINS, CLINTON EUGENE, POWNAL, VERMONT 05261, US;KUZIA, EUGENE WILLIAM, ADAMS, MASSACHUSETTS 01220, US;SCHMIDT, PHYLLIS MARY, WILLIAMSTOWN, MASSACHUSETTS 01267, US;SCHROEDER, WALTER WARREN JR., WILLIAMSTOWN, MASSACHUSETTS 01267, US |