Method for producing a grid of lead-based alloy for a lead-acid battery

A method for producing an alloy grid Baun method for producing a grid of lead-based alloy for a lead-acid quesada lead for a lead-acid comprising the steps of subjecting a grid of the comprises steps of subjecting a grid alloy Pb-Ca-Sn containing 0.06% by weight or Pb-Ca-meeacion Sn containing 0.06% by weight or less of Ca to (i) a first heat treatment Unnos Ca (i) a first heat treatment at a temperature of 40-110oC, and (ii) a second trataa 40-110oC temperature, and (ii) a second heat treatment at a temperature of 90-140oC and thermal maymiento at a temperature of 90-140oC and higher than the temperature of the first termior treatment temperature of the first heat treatment. co.