Spherical balls and their manufacture

Details Spherical balls and their manufacture Spherical balls and their manufacture

1981-12-16

1984-05-01

Lesmes, George F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

428406, 428426, 501 33, 264 15, 65 211, 65 213, B32B 516

Patent

active

044462077

ABSTRACT:
A process of forming glass balls by treatment of particulate vitreous material and a second material comprising carbon material and a carbonated salt. The process is carried out at a temperature, for the particular particulate vitreous material, which corresponds to a viscosity of from about 10.sup.6 to about 10.sup.3.5 poises with mixing and agitation.
The apparatus includes a furnace having a tube (4) adapted to rotate about an horizontal or inclined axis, delivery means (10, 12, 14) to the tube for the materials to be treated, and heating means (8, 20) for heating the tube and the bed of material from both an external and internal location.

REFERENCES:
patent: 2460977 (1949-02-01), Davis et al.
patent: 3323888 (1967-06-01), Searight et al.
patent: 3682666 (1972-08-01), Lacourrege
patent: 4201560 (1980-05-01), Dewitte et al.

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