IPC-Stelle: C21C 1/00 [Version 7 (gültig ab 01.2000)]

SymbolTypTitel
CSKCHEMISTRY; METALLURGY
C21USKMETALLURGY
C21KLMETALLURGY OF IRON
C21CUKLPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL (refining or remelting metals in general C22B 9/00); TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
C21C 1/00HGRRefining of pig-iron; Cast iron
C21C 1/02UGR1
.Dephosphorising or desulfurising
C21C 1/04UGR1
.Removing impurities other than carbon, phosphorus, or sulfur
C21C 1/06UGR1
.Constructional features of mixers for pig-iron
C21C 1/08UGR1
.Manufacture of cast-iron
C21C 1/10UGR1
.Making spheroidal graphite cast-iron
C21C 3/00HGRManufacture of wrought-iron or wrought-steel
C21C 5/00HGRManufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
C21C 5/02UGR1
.Crucible furnace processes
C21C 5/04UGR1
.Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
C21C 5/06UGR2
. .Processes yielding slags of special composition
C21C 5/28UGR1
.Manufacture of steel in the converter
C21C 5/30UGR2
. .Regulating or controlling the blowing
C21C 5/32UGR3
. . .Blowing from above (C21C 5/35 takes precedence) [5]
C21C 5/34UGR3
. . .Blowing through the bath (C21C 5/35 takes precedence) [5]
C21C 5/35UGR3
. . .Blowing from above and through the bath [5]
C21C 5/36UGR2
. .Processes yielding slags of special composition
C21C 5/38UGR2
. .Removal of waste gases or dust
C21C 5/40UGR3
. . .Offtakes or separating apparatus for converter waste gases or dust
C21C 5/42UGR2
. .Constructional features of converters
C21C 5/44UGR3
. . .Refractory linings
C21C 5/46UGR3
. . .Details or accessories
C21C 5/48UGR4
. . . .Bottoms or tuy%$res of converters
C21C 5/50UGR4
. . . .Tilting mechanisms for converters
C21C 5/52UGR1
.Manufacture of steel in electric furnaces (electric heating per se H05B)
C21C 5/54UGR2
. .Processes yielding slags of special composition
C21C 5/56UGR1
.Manufacture of steel by other methods (making liquid steel by direct processes C21B 13/00)
C21C 7/00HGRTreating molten ferrous alloys, e.g. steel, not covered by groups C21C 1/00 to C21C 5/00 (treating molten metals during moulding B22D 1/00 , B22D 27/00; remelting ferrous metals C22B)
C21C 7/04UGR1
.Removing impurities by adding a treating agent
C21C 7/06UGR2
. .Deoxidising, e.g. killing [2]
C21C 7/064UGR2
. .Dephosphorising; Desulfurising [3]
C21C 7/068UGR2
. .Decarburising [3]
C21C 7/072UGR2
. .Treatment with gases (C21C 7/06 , C21C 7/064 , C21C 7/068 take precedence) [3]
C21C 7/076UGR2
. .Use of slags or fluxes as treating agents (C21C 7/06 , C21C 7/064 , C21C 7/068 take precedence) [3]
C21C 7/10UGR1
.Handling in vacuum