ClassID:

118893

C21C7/076 - CPC Classification

Classification description:

Treating molten ferrous alloys, e.g. steel, not covered by groups  - ; Removing impurities by adding a treating agent Use of slags or fluxes as treating agents

Recent Application in this class:
#1
20260125781
2026-05-07

FE-CR-NI ALLOYS WITH EXCELLENT SURFACE PROPERTIES AND THEIR PRODUCTION METHODS

#2
20260035775
2026-02-05

METHOD FOR PRODUCING AND PREPARING STEEL BAR FOR AUTOMOTIVE BUSHINGS BY MEANS OF ECOLOGICAL AND ECONOMICAL ARC FURNACE

#3
20250188556
2025-06-12

METHOD FOR SLAG MODIFICATION DURING END PERIOD OF CASTING IN STEEL LADLE HAVING COVER

#4
20240279784
2024-08-22

METHOD FOR PRODUCING HYPEREUTECTOID STEEL RAIL RESISTANT TO CONTACT FATIGUE

#5
20240246145
2024-07-25

Gas atomization of molten steel

#6
20240052444
2024-02-15

ROTARY DEVICE FOR TREATING MOLTEN METAL

#7
20230359519
2023-11-09

Cross-Correlation Of Metrics For Anomaly Root Cause Identification

#8
20230332260
2023-10-19

REFINING PROCESS CONTROL DEVICE AND REFINING PROCESS CONTROL METHOD

#9
20220325392
2022-10-13

Cross-correlation of metrics for anomaly root cause identification

#10
20220118506
2022-04-21

Mold flux and casting method using same

#11
20200347488
2020-11-05

Fe—Cr—Ni alloy and method for production thereof

#12
20200024145
2020-01-23

METHOD FOR RESOURCE RECOVERY FROM SILICON SLAG AND DEOXIDIZING AGENT FOR IRON AND STEELMAKING

#13
20190309381
2019-10-10

Dephosphorizing flux and method for preparing same

#14
20190265651
2019-08-29

Timepiece Resonator

#15
20190211425
2019-07-11

Method for producing alloy steel

#16
20190210097
2019-07-11

Method of producing exothermic mold powder in form of sprayed granules

#17
20190062854
2019-02-28

Manufacture of low carbon steel

#18
20190017147
2019-01-17

Separation method of rare earth element and iron and rare earth element-containing slag

#19
20180363078
2018-12-20

Granules containing agglomerated bulk material

#20
20180272397
2018-09-27

HIGH STRENGTH STAINLESS STEEL SHEET EXCELLENT IN FATIGUE CHARACTERISTICS, AND PRODUCTION METHOD THEREFOR

#21
20180222764
2018-08-09

Method for obtaining calcium aluminates from non-saline aluminum slags

#22
20180187276
2018-07-05

Slag Conditioner

#23
20180021980
2018-01-25

Composition Comprising Calcium Magnesium Compound(s) as Compacts

#24
20170321291
2017-11-09

A METHOD FOR THE MANUFACTURE OF AN EFFICIENT STEEL DEOXIDIZER ALUMINUM MATRIX COMPOSITE MATERIAL

#25
20170176104
2017-06-22

Smelting process and apparatus

#26
20160333431
2016-11-17

USE OF LADLE FURNACE SLAG FROM AL-KILLED STEEL IN SI-KILLED STEELMAKING AS CALCIUM ALUMINATE FLUX

#27
20160237526
2016-08-18

Production of low carbon chromium iron alloys from chromite concentrates

#28
20160160302
2016-06-09

Fluxing agent, process of its production, agglomeration mixture and use of slug from secondary metallurgy

#29
20150122083
2015-05-07

High cleanliness molten steel production method and refining device

#30
20150108698
2015-04-23

METHOD FOR OPERATING A VACUUM MELTING SYSTEM, AND VACUUM MELTING SYSTEM OPERATED ACCORDING TO SAID METHOD

#31
20150082944
2015-03-26

Granules Containing Agglomerated Bulk Material

#32
20150020929
2015-01-22

Bulk glass steel with high glass forming ability

#33
20150000470
2015-01-01

Method for preliminary treatment of molten iron

#34
20140224069
2014-08-14

Method for the production and the purification of molten calcium aluminate using contaminated aluminum dross residue

#35
20140096648
2014-04-10

Method for controlling A-shaped segregation by purification of liquid steel

#36
20130333518
2013-12-19

Environmentally friendly flux for molten steel desulfurization

#37
20130213184
2013-08-22

Process for making low and specified hardenability structural steel

#38
20130056167
2013-03-07

Method for controlling extremely low Ti in extra low carbon AlSi-killed steel

#39
20130025413
2013-01-31

Method for treatment of chrome-containing molten iron and slag

#40
20120325054
2012-12-27

Method of alloying various grades of steel with manganese oxides

#41
20120297926
2012-11-29

Agglomerated alumina containing product

#42
20120291591
2012-11-22

AGENT FOR STEEL-MAKING FORMED BY ALUMINUM-MAKING SLAG

#43
20120180601
2012-07-19

Method of desulfurizing steel

#44
20110265608
2011-11-03

Process for production of ultra low phosphorous and carbon ferromanganese by using of ferromanganese slag

#45
20110220248
2011-09-15

POROUS MAGNESIA CLINKER, MANUFACTURING METHOD AND USE THEREOF AS FLUX FOR TREATING STEELMAKING SLAG

#46
20110167960
2011-07-14

Flux for refining steel of low nitrogen, low oxygen and low sulfur

#47
20110041653
2011-02-24

Method of manufacturing ultra low carbon ferritic stainless steel

#48
20110023659
2011-02-03

Process for preparing a foaming slag former, product and use thereof

#49
20110023656
2011-02-03

METHOD FOR PRODUCING GRANULAR METALLIC IRON

#50
20100276102
2010-11-04

Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment

#51
20100275728
2010-11-04

Method in connection with steel production

#52
20100193733
2010-08-05

Regenerated calcium aluminate product and process of manufacture

#53
20100086432
2010-04-08

Steel for high-cleanliness spring with excellent fatigue characteristics and high-cleanliness spring

#54
20100024596
2010-02-04

Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment

#55
20090277304
2009-11-12

PROCESS FOR PRODUCTION OF FE BASED AMORPHOUS ALLOY

#56
20090274608
2009-11-05

Calcium-silicate based slag for treatment of molten silicon

#57
20090274574
2009-11-05

Forging steel and its manufacturing method, and forged parts

#58
20090118565
2009-05-07

Method in connection with steel production

#59
20090101248
2009-04-23

Grain-oriented electrical steel sheet and process for producing the same

#60
20090019968
2009-01-22

Removal method of nitrogen in molten steel

#61
20090013827
2009-01-15

Conditioned Quicklime for Injection to a Molten Bath of a Steel-Making Vessel

#62
20090007989
2009-01-08

METAL BATH FLUX AND METHOD TO TREAT METAL BATH FLUX AND METHOD TO PRODUCE A METAL BATH FLUX

#63
20080202289
2008-08-28

Method for producing high cleanness steel excellent in fatigue strength or cold workability

#64
20080156145
2008-07-03

Calcium-silicate based slag for treatment of molten silicon

#65
20070266902
2007-11-22

Regenerated calcium aluminate product and process of manufacture

#66
20070256516
2007-11-08

Steel making material recycling system

#67
20070215249
2007-09-20

Method in connection with steel production

#68
20070084306
2007-04-19

Composition for reducing steelmaking slag

#69
20070009373
2007-01-11

Mold powder for continuous casting of steel

#70
20070000350
2007-01-04

Covering means for a top slag, method for the production thereof and use of the covering means

#71
20060289095
2006-12-28

Nitrogen removal from molten metal by slags containing titanium oxides

#72
20060272447
2006-12-07

Continuous steel production and apparatus

#73
20060156864
2006-07-20

Method for producing high cleanliness steel excellent in fatigue strength or cold workability

#74
20060123949
2006-06-15

Highly ductile steel sheet and method of manufacturing the same

#75
20060096416
2006-05-11

Refining agent and refining method

#76
20060037673
2006-02-23

Chromium-containing metal and manufacturing method thereof

#77
20060032327
2006-02-16

Briquetting of lime based products with carbon based additives

#78
20050257644
2005-11-24

Refining agent and refining method

#79
20050229745
2005-10-20

Metallurgical slag

#80
20050172757
2005-08-11

Calcium-silicate based slag for treatment of molten steel

#81
14200688
2016-04-26

Preparation of flux lime for a BOF converter including conversion of troublesome fines to high quality fluidized lime

#82
14200598
2016-06-14

Conversion of troublesome lime fines to useful high quality fluidized lime in feeding flux lime to a BOF converter