Aluminothermic mixture with ferrochromium alloy
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United States of America Patent
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Aug 31, 1999
Grant Date -
N/A
app pub date -
Nov 21, 1997
filing date -
Dec 4, 1996
priority date (Note) -
Expired
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Abstract
The invention relates to an aluminothermic mixture consisting of a finely particulate base portion of iron oxides and aluminum as well as metallic additives, wherein a master alloy, namely a ferrochromium alloy consisting of (in % by weight) C: 0.1 to 20 Si: 2 to 40 Cr: 5 to 80 and iron with impurities resulting from manufacture and, if appropriate, other alloying elements, is added in a quantity of from 5 to 50% by weight, relative to the base portion, as metallic additive.
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