| 摘要 |
1,225,204. Electrolytic capacitors. P. R. MALLORY & CO. Inc. 24 March, 1969 [19 April, 1968], No. 15369/69. Heading HIM. In a batch process suitable for automation for making solid electrolytic capacitors, use is made of a strip 10 of film-forming metal, the strip having appendages 12 comprising neck portions 19 and cup-shaped portions 18, and apertures 13 for indexing the strip through the various work stations, a hairpin-like member 16 which will form the leads to the eventual capacitor being secured to the strip by walls 15, 15<SP>1</SP> of the apertures 13 and bent-over extension 14, 17<SP>1</SP>. The capacitor is made by dispensing powdered film-forming metal into the cups, sintering, anodizing, applying a semi-conductor, e.g. manganese dioxide coating and a cathode contact layer. Flattened end 20 of member 16 is situated by the contact layer for soldering thereto, and the other end 23 which as shown is bent at right angles is soldered to neck portion 19. The latter may be strengthened by a rib. After severing the neck the capacitors are encapsulated in a mould, the hairpin member further serving to strengthen and position the capacitor in the mould prior to severing it to form anode and cathode leads. |
