Method and apparatus for making lead-acid batteries

摘要

A cast-on method and its apparatus for joining battery plates to a post in which heat capacity of a mold for forming a post and a strap is less than five times of heat capacity of metals to be introduced in the mold. The mold is made of materials having less linear thermal expansion coefficient preferably less than 18x10-6/° K. The mold may be dipped into calmly flowing molten metal keeping a constant level.