Method for producing lead-base alloy grid for lead-acid battery
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United States of America Patent
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Jul 28, 2015
Grant Date -
Dec 3, 2009
app pub date -
Aug 6, 2009
filing date -
Nov 5, 2007
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Abstract
The present invention relates to a method for producing a lead-base alloy grid for lead-acid battery having excellent mechanical strength, corrosion resistance and growth resistance, including two-step heat treatment of a Pb—Ca—Sn alloy grid containing 0.06% by mass or less of calcium, the first heat treatment being conducted at a temperature of 40° C. to 110° C., the second heat treatment being conducted at a temperature of 90° C. to 140° C., and the first heat treatment being conducted at a lower temperature than the second heat treatment.
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