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Class Information
Number: 420/21
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > 1.7 percent or more carbon containing > 2.7 percent or more carbon equivalent containing (i.e., cast iron) > Processes of adding magnesium > Mechanically plunging magnesium containing agent below surface of iron alloy melt
Description: Processes wherein the magnesium containing agent is mechanically forced below the surface of the iron alloy melt, e.g., by employing a plunging bell.










Patents under this class:

Patent Number Title Of Patent Date Issued
8557176 Method for influencing the properties of cast iron Oct. 15, 2013
5098651 Magnesium treatment process and apparatus for carrying out this process Mar. 24, 1992
4889688 Process of producing nodular cast iron Dec. 26, 1989
4746360 Iron alloys, process and apparatus for introducing highly reactive metals into molten metal and process and product for removing impurities from molten metal May. 24, 1988
4500352 Production of cast iron Feb. 19, 1985
4496393 Immersion and vaporization chamber Jan. 29, 1985
4313758 Method for adding unalloyed magnesium metal to molten cast iron Feb. 2, 1982
4306904 Process of introducing a solid addition into a bath of liquid metal Dec. 22, 1981
4299624 Molten metal treatment Nov. 10, 1981
4296920 Molten metal treatment Oct. 27, 1981
4245691 In situ furnace metal desulfurization/nodularization by high purity magnesium Jan. 20, 1981
4205981 Method for ladle treatment of molten cast iron using sheathed magnesium wire Jun. 3, 1980
4204666 In situ furnace metal desulfurization/nodularization by high purity magnesium May. 27, 1980
4199353 Molten metal treatment Apr. 22, 1980
4162917 Method and composition for treating molten ferrous metals to produce nodular iron Jul. 31, 1979
4040818 Addition of magnesium to molten metal Aug. 9, 1977
3999984 Method of adding metallic additive to molten metal of higher temperature than boiling point of the additive Dec. 28, 1976
3998630 Ferrous metal network impregnated with magnesium metal Dec. 21, 1976
3953198 Method for treating molten iron using a magnesium infiltrated metal network Apr. 27, 1976











 
 
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