FIELD: biochemistry.
SUBSTANCE: invention relates to manufacturing of blanks for the production of powdered lead oxide used in the manufacture of lead-acid batteries. Slab is cut from the lead ingot in the form of a prism, from which prismatic preforms are formed. Preforms are formed by two counter-rotating drums having cavities in the form of a prism. Cavities on one drum are located opposite the solid surface of the other drum. Lead plate is fed to the rotating drums and ensures the indentation of the lead in their cavity to form prismatic blanks. Blanks are pushed out of the said cavities of the drums by means of ejectors installed therein.
EFFECT: as a result structure of the powder mixture is stabilized by creating conditions for reducing the degree of re-grinding.
1 cl, 1 dwg, 1 tbl
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