B21B17/04 - CPC Classification Index

ClassID:

37801 ⎘

B21B17/04 - CPC Classification

Classification description:

Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process

Recent Application in this class:

20250303456

2025-10-02

Circular rolling mill and rolling method using such a rolling mill

20230201900

2023-06-29

Device and method for handling mandrel rods in a tube rolling mill

20220241889

2022-08-04

Method for manufacturing multi-layered nuclear fuel cladding pipe

20220219213

2022-07-14

Guide device for guiding a driving bar of a mandrel or for guiding a mandrel in a rolling process of tubular bodies

20200164418

2020-05-28

Mandrel with compensating grip

20200009625

2020-01-09

Rolling mill for rolling concave, rod-shaped bodies

20190274851

2019-09-12

Thin, narrow tube and drawing apparatus and drawing method for manufacturing the same

20180304327

2018-10-25

MULTI-STAND ROLLING MILL FOR ROD-SHAPED BODIES COMPRISING THREE MOTORIZED-ROLLERS STANDS

20180169725

2018-06-21

Method and apparatus for making seamless pipe

#10

20170216896

2017-08-03

Method for producing hot-rolled seamless pipes having thickened ends

#11

20170173650

2017-06-22

COMBINED APPARATUS FOR ROLLING SEAMLESS TUBES

#12

20170165729

2017-06-15

COMPACT PLANT FOR ROLLING SEAMLESS TUBES

#13

20160059284

2016-03-03

Mandrel conveying device for a tube rolling mill

#14

20150306646

2015-10-29

Manufacturing method and manufacturing apparatus of seamless metal pipe

#15

20150246381

2015-09-03

Rolling plant, rolling mill and rolling method

#16

20150121982

2015-05-07

Manufacturing method of seamless metal pipe, mandrel mill, and auxiliary tool

#17

20140223984

2014-08-14

Rolling mill and rolling method

#18

20130333433

2013-12-19

Method for producing seamless hot-rolled pipes in continuous pipe rolling mills

#19

20130205860

2013-08-15

Mandrel mill and method for manufacturing seamless pipe or tube

#20

20130180300

2013-07-18

Method for adjusting rolling positions of rolling rolls constituting three-roll mandrel mill and method for manufacturing seamless pipes or tubes

#21

20130133392

2013-05-30

Rolling mill stand and related rolling mill for longitudinally rolling rod-shaped bodies

#22

20130061646

2013-03-14

Process for rolling tubes in a continuous multi-stand rolling mill

#23

20130036784

2013-02-14

Rolling mill for long articles

#24

20130008219

2013-01-10

Mandrel conveying device for a tube rolling mill

#25

20120285215

2012-11-15

Device and method to shape worked pieces

#26

20120272704

2012-11-01

Method and device for the optimized circulation of rods in the production of a seamlessly hot-fabricated steel pipe according to the continuous pipe method

#27

20120174646

2012-07-12

Retract mandrel mill and method for rolling tube blank

#28

20120174642

2012-07-12

Multi-roll mandrel mill and method of producing seamless tubes

#29

20120151979

2012-06-21

DEVICE FOR ADJUSTING ROLLING POSITIONS OF ROLLING ROLLS CONSTITUTING THREE-ROLL MANDREL MILL AND METHOD FOR MANUFACTURING SEAMLESS PIPES OR TUBES

#30

20120137745

2012-06-07

Tube rolling plant

#31

20120125068

2012-05-24

Method for producing seamless tubes by means of a three-roll bar rolling mill

#32

20110239720

2011-10-06

Production method of seamless pipe or tube, and oxidizing gas supply unit

#33

20110226031

2011-09-22

Rolling mill stand and related rolling mill for longitudinally rolling rod-shaped bodies

#34

20100269868

2010-10-28

MANDREL BAR CLEANING FACILITY

#35

20100251792

2010-10-07

Mandrel mill and method for manufacturing seamless pipe or tube

#36

20100212387

2010-08-26

Method of and rolling mill for making seamless steel pipe

#37

20100132425

2010-06-03

MANDREL MILL, OPERATING METHOD OF THE SAME AND PRODUCTION METHOD OF SEAMLESS PIPE

#38

20100107713

2010-05-06

METHOD AND DEVICE FOR ROLLING A ROLLING STOCK IN A ROLLING MILL WITH A CROSS-ROLLING MILL

#39

20100064753

2010-03-18

MANDREL MILL, OPERATING METHOD OF THE SAME AND PRODUCTION METHOD OF SEAMLESS PIPE

#40

20100031725

2010-02-11

Grooved roll for a reducer and a reducer

#41

20090308125

2009-12-17

Mandrel mill and process for manufacturing a seamless pipe

#42

20090090153

2009-04-09

RETAINED MANDREL ROLLING MILL FOR SEAMLESS TUBES

#43

20090071221

2009-03-19

Mandrel bar for high-alloy rolling, method for surface treating a mandrel bar, method for producing mandrel bar, and method for operating seamless pipe mill

#44