Manufacture of spherical balls

Details Manufacture of spherical balls Manufacture of spherical balls

1979-03-26

1980-05-06

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Self-supporting particle making

65 24, C03B 1910

Patent

active

042015600

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: 2461011 (1949-02-01), Taylor et al.
patent: 2524613 (1950-10-01), Wainer
patent: 3266879 (1966-08-01), Kroyer
patent: 3682666 (1972-08-01), Lacaurrege
patent: 3694528 (1972-09-01), Schott
patent: 3856899 (1974-12-01), Schott

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