Light weight abrasive tumbling media and method of making same
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United States of America Patent
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Sep 17, 1991
Grant Date -
N/A
app pub date -
Feb 27, 1990
filing date -
Feb 27, 1990
priority date (Note) -
Expired
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Abstract
The present invention provides a method for manufacturing light weight abrasive tumbling media made up of discrete abrasive particles desirably exhibiting an essentially uniform size and shape which comprises adding at least 15%, and preferably 20% by weight of a naturally occurring or synthetically produced metal carbonate to a ceramic/clay based formable mixture prior to firing to obtain particles having a final fired bulk density below 65 lbs/ft.sup.3. Such a carbonate may desirably be selected from the group consisting of calcium carbonate, lithium carbonate, magnesium carbonate, zinc carbonate or compounds containing a predominant amount of one or more of these carbonates.
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