Method and apparatus for making metal shot

Details Method and apparatus for making metal shot Method and apparatus for making metal shot

1990-12-06

1992-10-13

Seidel, Richard K.

Metal founding

Combined

164348, 164 761, 425 6, 264 9, 75335, B22D 4500, B22D 1101, B29B 900

Patent

active

051542200

ABSTRACT:
Apparatus for producing metal shot includes pans having rows of apertures in the bottom walls thereof, a deflector member for each row of openings vertically underlying the corresponding row of openings and having a planar surface disposed at an angle to horizontal, and an inclined conveyor spaced below the deflector members. The pans and the deflector members and conveyor are vibrated, and the deflector members are cooled. Molten metal is placed in the pans, and vibration of the pans causes the molten metal flow downwardly through the openings therein to be interrupted, whereby droplets fall from the openings onto the corresponding deflector member. The descent of the droplets through air and the impingement of the droplets on the cooled deflector members cool and solidify the droplets. The droplets are somewhat flattened by impingement against the deflector members and are deflected laterally therefrom and fall downwardly onto the conveyor. The flattened droplets are further cooled as they descend downwardly from the deflector members through air and, upon engaging the conveyor, the droplets are further cooled as they are conveyed by the conveyor to a collecting point.

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