Forged steel grinding element for ball milling
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United States of America Patent
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Jan 6, 1987
Grant Date -
N/A
app pub date -
Nov 1, 1984
filing date -
Nov 2, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A forged grinding element made of steel for ball milling consisting of a steel alloy containing from 0.7 to 1.0 weight percent of manganese; 0.7 to 2.2 weight percent of chromium; 0.3 to 0.6 weight percent of molybdenum, 0.5 to 2.2 weight percent of nickel and up to 0.45 weight percent of carbon, the balance iron with the usual steel impurities. This alloy has high hardness and a basic tensile strength amounting to 1300 to 1700 N/mm.sup.2. Its shape is round or polygonal such as pyramid shaped.
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