B21B17/02 - CPC Classification Index

ClassID:

37800 ⎘

B21B17/02 - 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

Sub-classes:

B21B17/04 » in a continuous process 52
B21B17/06 » in a discontinuous process 3

Recent Application in this class:

20200276625

2020-09-03

Piercing machine, and method for producing seamless metal pipe using the same

20190381545

2019-12-19

Rolling mill stand with rolls axially constrained with elastic system

20190024549

2019-01-24

Method for forming a collar in a muffler housing

20170333963

2017-11-23

Method of manufacturing piston of pump for brake system and pump for brake system including the piston

20170029918

2017-02-02

Method for manufacturing a strip having a variable thickness and associated strip

20170001231

2017-01-05

Punch surface texturing for use in the manufacturing of metallic containers

20160325325

2016-11-10

Rolling rod as an inner tool in the production of seamless metal hollow bodies and method for producing a metal hollow body

20160059284

2016-03-03

Mandrel conveying device for a tube rolling mill

20150314346

2015-11-05

Inner surface regulation tool, plug, mandrel, hot rolling mill, press piercing machine, and drawing machine

#10

20150306646

2015-10-29

Manufacturing method and manufacturing apparatus of seamless metal pipe

#11

20150298185

2015-10-22

Method and device for producing seamless steel pipes having low eccentricity

#12

20150258591

2015-09-17

Plug for hot tube-making

#13

20150191670

2015-07-09

Powder lubricant composition and method for manufacturing seamless steel pipe

#14

20150183015

2015-07-02

Method of producing cold-worked centrifugal cast tubular products

#15

20150121982

2015-05-07

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

#16

20150027190

2015-01-29

Method and device for roll-forming workpieces

#17

20140223984

2014-08-14

Rolling mill and rolling method

#18

20140096580

2014-04-10

Rolling stand with three working rolls

#19

20130205860

2013-08-15

Mandrel mill and method for manufacturing seamless pipe or tube

#20

20130180302

2013-07-18

Ring rolling mill and ring rolling method

#21

20130117990

2013-05-16

Method of forming industrial housings

#22

20130008219

2013-01-10

Mandrel conveying device for a tube rolling mill

#23

20120285215

2012-11-15

Device and method to shape worked pieces

#24

20120216590

2012-08-30

Method of forming industrial housings

#25

20110265537

2011-11-03

ROLL FOR A ROLLING-MILL

#26

20110239720

2011-10-06

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

#27

20100251792

2010-10-07

Mandrel mill and method for manufacturing seamless pipe or tube

#28

20100236311

2010-09-23

Ring rolling mill and ring rolling method

#29

20100192657

2010-08-05

Rolling stand

#30

20090084151

2009-04-02

Process for producing seamless stainless steel pipe

#31

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

#32

20070157691

2007-07-12

Process for producing seamless steel pipe

#33

20050266927

2005-12-01

Seamless steel tube for drive shaft and method for manufacturing the same