C21D7/12 - CPC Classification Index

ClassID:

118994 ⎘

C21D7/12 - CPC Classification

Classification description:

Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars by expanding tubular bodies

Recent Application in this class:

20240159204

2024-05-16

REINFORCED BULGING TANK OF LAUNCH VEHICLE AND MANUFACTURING METHOD THEREFOR

20240093324

2024-03-21

STEEL PIPE FOR PRESSURE PIPING AND STARTING MATERIAL FOR STEEL PIPE

20210278043

2021-09-09

PRESSURE VESSEL FOR HYDROGEN AND METHOD FOR MANUFACTURING SAME

20190358693

2019-11-28

Device and method for the autofrettage of a workpiece

20190269502

2019-09-05

THERMOCHEMICALLY TREATED MINIATURE TUBES AS SEMIFINISHED PRODUCTS FOR VASCULAR STENTS

20190211414

2019-07-11

Steel pipe or tube for pressure vessels, method of producing steel pipe or tube for pressure vessels, and composite pressure vessel liner

20180223403

2018-08-09

HIGH-ALLOY STEEL AND METHOD FOR PRODUCING PIPES FROM THIS STEEL BY MEANS OF INTERNAL HIGH PRESSURE FORMING

20180133776

2018-05-17

Method for blow molding metal containers

20180044748

2018-02-15

Steel material for composite pressure vessel liner and steel pipe or tube for composite pressure vessel liner

#10

20180023158

2018-01-25

High-strength heavy-walled stainless steel seamless tube or pipe and method of manufacturing the same

#11

20180003172

2018-01-04

Autofrettage of thermally clad components

#12

20170240984

2017-08-24

Valve body treated by autofrettage

#13

20160340754

2016-11-24

Metallic body with threaded port subject to autofrettage

#14

20160001345

2016-01-07

Value stream process for forming vehicle rails from extruded aluminum tubes

#15

20150273560

2015-10-01

Method for blow molding metal containers

#16

20150202042

2015-07-23

Thermochemically treated miniature tubes as semifinished products for vascular stents

#17

20150114071

2015-04-30

Cold working holes in a composite and metal stack

#18

20140208791

2014-07-31

Heating medium utilizing apparatus

#19

20120233846

2012-09-20

Alignment device and methods of using the same

#20

20120036913

2012-02-16

Mandrel assembly and method of using the same

#21

20110315793

2011-12-29

Fuel injector tip with compressive residual stress

#22

20110277306

2011-11-17

Alignment device and methods of using the same

#23

20110252854

2011-10-20

Method for producing high alloy pipe

#24

20110155289

2011-06-30

RESIDUAL STRESS IMPROVING METHOD FOR PIPE

#25

20110126943

2011-06-02

Method for joining and joined connection of two components made of a metal material

#26

20110023991

2011-02-03

High strength steel plate, steel pipe with excellent low temperature toughness, and method of production of same

#27

20110017051

2011-01-27

Compressed elastomer process for autofrettage and lining tubes

#28

20100236048

2010-09-23

Alignment device and methods of using the same

#29

20100193171

2010-08-05

Production method of internally ribbed steel tube

#30

20100154501

2010-06-24

Autofrettage process and autofrettage apparatus

#31

20100077818

2010-04-01

Ball autofrettage

#32

20100018282

2010-01-28

Mandrel assembly and method of using the same

#33

20090252904

2009-10-08

METHOD FOR THE PRODUCTION OF MACHINERY COMPONENTS AND SUBSEQUENTLY PRODUCED ROLL SLEEVE

#34

20090084255

2009-04-02

Compressed elastomer process for autofrettage and lining tubes

#35

20070295050

2007-12-27

Alignment device and methods of using the same

#36

20070180885

2007-08-09

Mandrel assembly and method of using the same

#37

20060112533

2006-06-01

Coldwork holes with rotating mandrel and method

#38

20060042070

2006-03-02

Internal surface treating method of hole before tapping on aluminumdiematerial, internal surface of hole processed casting structure, and industrial tool of internal surface improvement

#39