Cast abrasion resistant hollow balls

Details Cast abrasion resistant hollow balls Cast abrasion resistant hollow balls

1996-07-16

1997-09-16

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Loose grinding body comminutor

164398, 164137, 164 98, B02C 1720

Patent

active

056671547

ABSTRACT:
A cast abrasion resistant hollow ball is formed with a hollow ceramic core that generates no gas during the casting operation. Solid ceramic bars or supports hold the hollow ceramic core in a fixed location at the center of the cast ball during the casting process. There are no open holes or openings in the ceramic supports due to the fact that the hollow ceramic sphere is composed of an inert refractory material which eliminates any gases being generated during the pouring and solidification of the liquid metal in the casting process.

REFERENCES:
patent: 1459464 (1923-06-01), Bradley
patent: 1823351 (1931-09-01), Clements
patent: 1934239 (1933-11-01), Schupp
patent: 2378399 (1945-06-01), Fruth
patent: 3034735 (1962-05-01), Cadwell
patent: 3254849 (1966-06-01), Clements
patent: 3491423 (1970-01-01), Haller
patent: 4410285 (1983-10-01), Strasser et al.
patent: 4495684 (1985-01-01), Sander et al.
patent: 5295530 (1994-03-01), O'Connor et al.

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