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Class Information
Number: 420/23
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 > Magnesium containing agent is coated, impregnated, or compacted (e.g., briquetted, coated particles)
Description: Processes wherein the magnesium is contained in an agent which is coated, impregnated or compacted e.g., briquettes.










Patents under this class:

Patent Number Title Of Patent Date Issued
6383249 Magnesium desulfurization agent May. 7, 2002
6372014 Magnesium injection agent for ferrous metal Apr. 16, 2002
6352570 Magnesium desulfurization agent Mar. 5, 2002
6126713 Additive for use in producing spheroidal graphite cast iron Oct. 3, 2000
5205856 Inoculation wire Apr. 27, 1993
4897242 Process for treating molten cast iron in an open ladle by means of pure magnesium Jan. 30, 1990
4849165 Metal treatment agents Jul. 18, 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
4560409 Metal bearing graphitic carbons Dec. 24, 1985
4338129 Production of vermicular graphite cast iron Jul. 6, 1982
4299620 Lamellar graphite inoculant Nov. 10, 1981
4225343 Addition agent for molten metals Sep. 30, 1980
4209325 Desulphuration of metals Jun. 24, 1980
4199351 Treatment agents for molten metals Apr. 22, 1980
4194903 Method of producing steel with the lowest possible sulfur content by desulfurization of pig iron with magnesium coke Mar. 25, 1980
4189315 Process for the desulphurization of molten cast iron and treating agent Feb. 19, 1980
4188210 Iron and/or steel treatment with magnesium and refractory coated composite shot Feb. 12, 1980
4186000 Salt-coated magnesium granules Jan. 29, 1980
4173466 Magnesium-containing treatment agents Nov. 6, 1979
4162917 Method and composition for treating molten ferrous metals to produce nodular iron Jul. 31, 1979
4083716 Magnesium base treating agent of molten iron Apr. 11, 1978
4040818 Addition of magnesium to molten metal Aug. 9, 1977
4019897 Desulfurizing and inoculating agent for molten iron Apr. 26, 1977
3998630 Ferrous metal network impregnated with magnesium metal Dec. 21, 1976
3969105 Treating agent for high melting temperature metals Jul. 13, 1976
3957502 Addition of magnesium to molten metal May. 18, 1976
3953198 Method for treating molten iron using a magnesium infiltrated metal network Apr. 27, 1976











 
 
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