ClassID:

118969

C21D5/00 - CPC Classification

Classification description:

Heat treatments of cast-iron

Sub-classes:
Recent Application in this class:
#1
20250188577
2025-06-12

IRON CASTING AND METHOD OF MANUFACTURING IT

#2
20250075281
2025-03-06

BRAKE DISC AND MANUFACTURING METHOD THEREOF

#3
20250059634
2025-02-20

GREY CAST IRON, IN PARTICULAR FOR DISC BRAKE COMPONENTS

#4
20230358189
2023-11-09

Cylinder head, cylinder block, internal combustion engine, and method for manufacturing cylinder head

#5
20230349275
2023-11-02

HIGH CARBIDE CAST AUSTENITIC CORROSION RESISTANT ALLOYS

#6
20230128222
2023-04-27

Cylinder head, cylinder block, internal combustion engine, and method for manufacturing cylinder head

#7
20220364195
2022-11-17

METHOD OF MANUFACTURING CAM PIECE FOR CONTINUOUSLY VARIABLE VALVE DURATION AND CAM PIECE MANUFACTURED THEREFROM

#8
20220324013
2022-10-13

Method for manufacturing cast iron casting with fining graphite and suspension part

#9
20220267873
2022-08-25

Method for producing a brake element, brake element

#10
20220251691
2022-08-11

CAST IRON, IN PARTICULAR FOR COMPONENTS OF DISC BRAKES

#11
20220213941
2022-07-07

Friction brake body for a friction brake of a motor vehicle, method for producing a friction brake

#12
20220213568
2022-07-07

Spheroidal graphite cast iron and method of producing spheroidal graphite cast iron, and vehicle undercarriage parts

#13
20220176431
2022-06-09

Centrifugally cast composite roll for rolling and method of manufacturing the same

#14
20210404027
2021-12-30

Machine component

#15
20210079490
2021-03-18

Process for local hardening

#16
20200216923
2020-07-09

METHOD FOR HEAT-TREATING UPPERMOST SURFACE OF SPHEROIDAL GRAPHITE CAST IRON AND SPHEROIDAL GRAPHITE CAST IRON HEAT-TREATED BY THE SAME

#17
20200206806
2020-07-02

Method for manufacturing cast iron casting with fining graphite and suspension part

#18
20200182318
2020-06-11

Brake disk including decarburized layer and nitride compound layer, and method of manufacturing the same

#19
20200181726
2020-06-11

Method of manufacturing cam piece for continuously variable valve duration and cam piece manufactured therefrom

#20
20190093782
2019-03-28

Pressure-limiting valve

#21
20190032594
2019-01-31

Method and system for processing an automotive engine block

#22
20180187678
2018-07-05

Austempered grey iron scroll and method of making thereof

#23
20180148808
2018-05-31

ALLOY CAST IRON HAVING IMPROVED WEAR RESISTANCE, AND PISTON RING COMPRISING SAME

#24
20170314104
2017-11-02

Ductile iron composition and process of forming a ductile iron component

#25
20170233841
2017-08-17

Material, method and component

#26
20170218488
2017-08-03

NODULAR GRAPHITE CAST IRON FOR PISTONS, ONE-PIECE PISTON, AND MARINE ENGINE

#27
20170073798
2017-03-16

Heat resistant spheroidal graphite cast iron, method of manufacturing the same and engine exhaust system part including the same

#28
20170051642
2017-02-23

Iron-based alloys and methods of making and use thereof

#29
20160244856
2016-08-25

Slide rings having a ledeburitic microstructure at the surface

#30
20160068923
2016-03-10

High-carbon iron-based amorphous alloy using molten pig iron and method of manufacturing the same

#31
20160053351
2016-02-25

High-strength, high-damping-capacity cast iron

#32
20160032430
2016-02-04

Development of nanostructure austempered ductile iron with dual phase microstructure

#33
20160024623
2016-01-28

High strength nodular cast iron pole and preparation technology thereof

#34
20160024622
2016-01-28

Process for producing a component made of heat-treated cast iron

#35
20150368763
2015-12-24

High-strength flake graphite cast iron, manufacturing method thereof, and engine body for internal combustion engine including cast iron

#36
20150292053
2015-10-15

METHOD FOR TREATING A CAST IRON WORKPIECE AND WORKPIECE FORMED THEREBY

#37
20150285378
2015-10-08

High modulus wear resistant gray cast iron for piston ring applications

#38
20150233074
2015-08-20

NODULAR CAST IRON FOUNDATION PILE PIPE AND A METHOD FOR PREPARING SAME

#39
20150144230
2015-05-28

Method for fabricating vane using a nodular graphite cast iron

#40
20150034037
2015-02-05

Iron-based alloys and methods of making and use thereof

#41
20140352851
2014-12-04

Spheroidal graphite cast iron having excellent strength and toughness and its production method

#42
20140345353
2014-11-27

Centrifugally cast composite roll for hot rolling and its production method

#43
20140271330
2014-09-18

Method for producing spheroidal graphite cast iron and vehicle component using said spheroidal graphite cast iron

#44
20140255243
2014-09-11

SPLINE HUB FOR CLUTCH AND MANUFACTURING METHOD THEREOF

#45
20140212324
2014-07-31

FINE CRYSTALLITE HIGH-FUNCTION METAL ALLOY MEMBER AND METHOD FOR MANUFACTURING SAME

#46
20140117626
2014-05-01

Compression ring and its production method

#47
20140048185
2014-02-20

Method of heat treating a cast iron, in particular a nodular cast iron

#48
20130263980
2013-10-10

Method for improving fatigue strength of cast iron material

#49
20130247634
2013-09-26

Method for improving fatigue strength of cast iron material

#50
20130247633
2013-09-26

Method for improving fatigue strength of cast iron material

#51
20130167984
2013-07-04

Method of making an austempered ductile iron article

#52
20130146185
2013-06-13

High-carbon iron-based amorphous alloy using molten pig iron and method of manufacturing the same

#53
20130134680
2013-05-30

High modulus wear resistant gray cast iron for piston ring applications

#54
20130122325
2013-05-16

Nodular graphite cast iron

#55
20130118656
2013-05-16

Methods of forming and austempering a ductile iron article and article made thereby

#56
20130118651
2013-05-16

ALLOY CAST IRON AND MANUFACTURING METHOD OF VANE USING THE SAME

#57
20130105047
2013-05-02

METHOD FOR MANUFACTURING MECHANICAL COMPONENTS MADE OF PARTICULARLY WEAR-RESISTANT AUSTEMPERED SPHEROIDAL CAST IRON

#58
20130045127
2013-02-21

Austenitic cast iron, austenitic-cast-iron cast product and manufacturing process for the same

#59
20120325373
2012-12-27

METHOD FOR TREATMENT OF METAL SURFACE, AND SURFACE-MODIFIED METAL PRODUCT

#60
20120279349
2012-11-08

Inoculation process and device

#61
20120241058
2012-09-27

CAST IRON CAST PART AND METHOD FOR PRODUCTION THEREOF

#62
20120152413
2012-06-21

METHOD OF PRODUCING LARGE COMPONENTS FROM AUSTEMPERED DUCTILE IRON ALLOYS

#63
20120055284
2012-03-08

PROCESS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY

#64
20120014626
2012-01-19

Martensitic-steel casting material and process for producing martensitic cast steel product

#65
20110290384
2011-12-01

High-manganese spheroidal graphite cast iron

#66
20110274946
2011-11-10

CAST BODY

#67
20110253826
2011-10-20

GRANULATOR BLADES WITH A HIGH WEAR RESISTANCE AND SHARPENING METHOD THEREOF

#68
20110211986
2011-09-01

DUCTILE IRON

#69
20110193273
2011-08-11

PROCESS AND APPARATUS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY

#70
20110171016
2011-07-14

Austenitic ductile cast iron

#71
20110094632
2011-04-28

Ledeburite cast iron with a high carbide content and an evenly distributed graphite embodiment

#72
20110041960
2011-02-24

HIGH RIGIDITY, HIGH DAMPING CAPACITY CAST IRON

#73
20110000584
2011-01-06

Process for forming steel

#74
20110000583
2011-01-06

Rolling part and manufacturing method thereof

#75
20100322813
2010-12-23

SiMo DUCTILE IRON CASTINGS IN GAS TURBINE APPLICATIONS

#76
20100192895
2010-08-05

Steel material having a high silicon content for producing piston rings and cylinder sleeves

#77
20100179039
2010-07-15

Roller body for a roller for treating a material and method of manufacturing a roller body

#78
20100126638
2010-05-27

Method of making a diesel-engine crankshaft

#79
20100111662
2010-05-06

Method for manufacturing at least part of a device for an earthmoving or materials-handling machine using austempered ductile iron and its named product

#80
20100084059
2010-04-08

Method of producing locally austempered ductile iron

#81
20100043927
2010-02-25

Alloy composition, Fe-based nano-crystalline alloy and forming method of the same and magnetic component

#82
20100024927
2010-02-04

PROCESS AND APPARATUS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY

#83
20100006189
2010-01-14

Austempered ductile iron, method for producing this and component comprising this iron

#84
20090320971
2009-12-31

Method for manufacturing spheroidal cast iron mechanical components

#85
20090151163
2009-06-18

Method for manufacturing cast iron member

#86
20090056404
2009-03-05

Transformable metal surface hardening method

#87
20090045586
2009-02-19

Method For Producing Rotary and/or Stationary Seal Rings of a Mechanical Face Seal by Means of Laser Hardening

#88
20090007995
2009-01-08

Method for improving creep resistance and low cycle fatigue properties of pressure-containing components

#89
20080308193
2008-12-18

Heat-resistant cast iron and exhaust equipment member formed thereby

#90
20080274005
2008-11-06

Cast Iron With Improved High Temperature Properties

#91
20080202652
2008-08-28

Ferrous seal sliding parts and producing method thereof

#92
20080178971
2008-07-31

Method of improving mechanical properties of gray iron

#93
20080145264
2008-06-19

Mo-V-Ni high temperature steels, articles made therefrom and method of making

#94
20080060727
2008-03-13

Ferrous seal sliding parts and producing method thereof

#95
20080006349
2008-01-10

Cast iron alloy containing boron

#96
20070289714
2007-12-20

Ferrous seal sliding parts and producing method thereof

#97
20070209738
2007-09-13

High strength and high toughness alloy with low density and the method of making

#98
20070143997
2007-06-28

Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft

#99
20060292026
2006-12-28

Cast iron alloy containing boron

#100
20060266447
2006-11-30

Iron alloy containing molybdenum

#101
20060201590
2006-09-14

Method and device for hardening the inner surface of holes, in mechanical pieces of cast iron of predominantly ferritic matrix

#102
20060174982
2006-08-10

Heat treated valve guide and method of making

#103
20060157160
2006-07-20

Machinable austempered cast iron article having improved machinability, fatigue performance, and resistance to environmental cracking

#104
20050194071
2005-09-08

Ferrous seal sliding parts and producing method thereof

#105
20050189045
2005-09-01

Ferrous seal sliding parts and producing method thereof

#106
20050189043
2005-09-01

Method of fabricating spheroidal graphite cast iron parts of high precision, geometrically and dimensionally, and having improved mechanical characteristics

#107
20050077289
2005-04-14

Induction heat treatment method and coil and article treated thereby

#108
20050063852
2005-03-24

Screw compressor and method of manufacturing rotor for the same