Compositions for alloying metal
First Claim
1. A composition consisting essentially of particulate alloying metal selected from the group consisting of manganese, manganese alloys, chromium, and chromium alloys, substantially all of which is minus 14 mesh, particulate phenolic resin, and a flux which forms a molten phase at the temperature of molten aluminum, the alloying metal constituting about 90 to about 97% and the flux about 3 to about 10% of the total weight of alloying metal and flux, and the ratio of the total volume of the alloying metal and flux to the volume of phenolic resin being in the range from about 2:
- 1 to about 16;
1.
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Accused Products
Abstract
A method, compositions and articles are described for the direct addition of alloying metal to a molten metal to be alloyed, which provide more rapid dissolution of the alloying metal in the molten metal than has been possible heretofore. The alloying metal is added to the molten metal to be alloyed in finely particulate form in intimate admixture with a flux suitable for the purpose and finely particulate phenolic resin. The phenolic resin, in particle form, and preferably in the form of low density microballoons, is employed in an amount such that the ratio of the volume of the metalflux mixture to the volume of the microballoons is in the range from about 2:1 to about 12:1. The flux-alloying metal mixture contains about 3 to about 10% flux and about 90 to about 97% alloying metal, by weight of the flux-metal mixture. The compositions may be added to the molten metal bath in powder or lump form or may be incorporated in articles such as bags or briquettes containing the compositions. The method, compositions and articles are particularly useful for alloying aluminum and especially for the addition of manganese or chromium to aluminum. The preferred fluxes for alloying aluminum are non-hygroscopic metal salts, particularly chlorides and fluorides; a flux composed of 40% sodium chloride, 40% potassium chloride and 20% cryolite being especially useful for the addition of manganese or chromium to aluminum.
119 Citations
8 Claims
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1. A composition consisting essentially of particulate alloying metal selected from the group consisting of manganese, manganese alloys, chromium, and chromium alloys, substantially all of which is minus 14 mesh, particulate phenolic resin, and a flux which forms a molten phase at the temperature of molten aluminum, the alloying metal constituting about 90 to about 97% and the flux about 3 to about 10% of the total weight of alloying metal and flux, and the ratio of the total volume of the alloying metal and flux to the volume of phenolic resin being in the range from about 2:
- 1 to about 16;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- 1 to about 16;
Specification