Coining expanded metal positive lead-acid battery grids

Details Coining expanded metal positive lead-acid battery grids Coining expanded metal positive lead-acid battery grids

1974-08-12

1976-04-06

Abercrombie, Willie G.

Metal working

Bias cutting of tubular stock

29 61, B23P 1300, B21D 3104

Patent

active

039479366

ABSTRACT:
Coining as-cast, Pb-Ca, expanded lead grids destined for use in positive, Faure-type, lead-acid storage battery plates. Expanded, as-cast, Pb-Ca strip is coined to remove all sharp edges and corners, to reorient the alloy's grain boundaries and to submerge nodal expansion cracks for increasing the cycle life of positive Pb-acid storage battery plates made therefrom.

REFERENCES:
patent: 3835514 (1974-09-01), Pollack
patent: 3853626 (1974-09-01), Daniel et al.

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