Process and apparatus for forming essentially spherical pellets

Details Process and apparatus for forming essentially spherical pellets Process and apparatus for forming essentially spherical pellets

1976-09-10

1977-07-12

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Means making particulate material directly from liquid or...

And distinct means applying congealing fluid to formed...

264 5, 264 13, 425145, 425144, 425135, 425 6, B22D 2308, B22F 900

Patent

active

040351165

ABSTRACT:
Process and apparatus for forming essentially spherical solid pellets directly from a melt, and particularly solid metal pellets such as iron and lead. The melt from a column of a preset height is directed through one or more orifices in a way to form a jet which experiences an upwardly directed trajectory path and which under the influence of vibratory action breaks up to form pellets of a predetermined diameter. Adjustments of the column height and/or vibration frequency are used to control pellet diameter. The pellets may be formed and solidified in a controlled atmosphere; and in the case of iron pellets, the carbon content of the pellets may be adjusted, to attain a desired degree of hardness, either before or after pellet formation. Iron pellets thus formed are particularly suitable as substitutes for lead pellets in ammunition.

REFERENCES:
patent: 1393383 (1921-10-01), Linebarger
patent: 3123855 (1964-03-01), Fischer et al.
patent: 3231641 (1966-01-01), Edmunds
patent: 3325858 (1967-06-01), Ogden et al.
patent: 3744983 (1973-07-01), Jenkins

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