Ferrous metal network impregnated with magnesium metal
AssigneeN L Industries, Inc.
InventorsJairaj Easwaran, George S. Foerster
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Abstract
A composition of matter comprising a mass of ferrous scrap pieces compressed together in random orientation forming a network of interlocking pieces has been prepared. The ferrous metal network has a density of 1.2 to 6.3 g/cc, a porosity of 20 to 85%, and a short transverse tensile strength (S.T.T.S.) of at least 2.0 psi, preferably at least 2.5 psi. This ferrous metal network may be impregnated with magnesium in amount from 5 to 55% by weight of the impregnated body. The magnesium impregnated body is useful for treating high melting metals, such as ferrous metal to reduce the sulphur content and to produce nodular iron.
Claims4
A composition of matter comprising a mass of ferrous metal pieces and magnesium, useful for treating molten iron to produce nodular iron, said scrap pieces being of random sizes compressed together in a haphazard order forming a metal network of interlocking pieces, said pieces having individual sizes in which the length of the pieces is from 1/8 to 9 inches, the width is from 1/64 to 1 inch, and the thickness is from 1 to 100 mils, and voids between said pieces forming a labyrinth of interstices throughout said network, said metal network having a density of from 6.3 down to 4.0 g/cc, the interstices in said network forming a porosity of from 20 to 50%, said metal network having a short transverse tensile strength of at least 2 psi, said magnesium filling said interstices, the amount of magnesium in said interstices being from 5% up to, but not including 18% by weight of the total weight of said metal network containing the magnesium.
Dependencies are inferred from the claim text.