Method for manufacturing lead grid plates for batteries
AssigneeFurukawa Electric Co., Ltd.
InventorNaokatsu Tsuda
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Abstract
A method for manufacturing a lead grid plate for batteries comprising the first process of preparing a rolled lead alloy plate measuring 0.5 to 1 mm in thickness; the second process of press punching the rolled lead alloy plate by means of a metal mold to obtain a lead grid plate, the width of the grid forming members of the plate measuring about the same as the thickness of the plate; and the third process of hardening said lead grid plate through a heat treatment with or without a prior shape correcting process carried out before the third process.
Claims2
A method for manufacturing a lead grid plate having an outer frame portion for batteries comprising the first step of preparing a rolled lead alloy plate measuring 0.5 to 1 mm in thickness;
- and the second step of press punching the rolled lead alloy plate by means of a metal mold to obtain a lead grid plate, the width of the grid forming members of the plate measuring about the same as the thickness of the plate, said second step being accomplished in at least two steps by press punching only voids at least in every alternate file or row or in a zig-zag line, then filling the lead grid plate with active material.
Dependencies are inferred from the claim text.