US3566653A - Tube reducing and elongating apparatus - Google Patents
Tube reducing and elongating apparatus Download PDFInfo
- Publication number
- US3566653A US3566653A US776124A US3566653DA US3566653A US 3566653 A US3566653 A US 3566653A US 776124 A US776124 A US 776124A US 3566653D A US3566653D A US 3566653DA US 3566653 A US3566653 A US 3566653A
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- US
- United States
- Prior art keywords
- tube
- pass
- frame
- disks
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000000712 assembly Effects 0.000 description 8
- 238000000429 assembly Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/12—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially parallel to the axis of the work
Definitions
- the mandrel normally disposed within the tube being elongated is rotated therewith at the same speed and in the same direction as the theoretical rotational speed imparted to the tube by the working rolls and the mandrel is simultaneously advanced with the tube at the same speed at which it exits from the pass formed by the working rolls and the disks.
- Apparatus for reducing and elongating tubular stock and provided with a pair of opposed, oppositely inclined rotatable rolls forming a pass through which the stock advances and also provided with opposed rotatable disks at the roll pass for confining the stock therebetween has long been known.
- Such apparatus is disclosed, for example, in Letters Patent 1,870,209, issued Aug. 2, 1932, to Samuel E. Diescher and such apparatus is frequently known as a Diescher type mill.
- each disk in its own sub-frame which is easily removed from and replaced in its normal working position.
- such disks along with their sub-frames may readily be removed and replaced with sub-frames mounting new disks or disks which have previously been put in working condition.
- the apparatus may then be placed in production once again while the worn disks are leisurely removed from their sub-frame, refinished or replaced as necessary, and then replaced in their sub-frames for subsequent future installation in the apparatus.
- the present invention contemplates increased productivity, without loss of quality, by a novel method of rotation and advancement of the mandrel disposed within that tube being elongated.
- rotation of the tube and its rate of advancement through the pass formed by the working rolls and the tube-confining disks is a combined function of the peripheral speed of the working rolls, their angle of inclination, the exterior diameter of the tube being elongated, and the peripheral speed of the tubeconfining disks.
- the improved method lies in eliminating the retarding effect of the mandrel by rotating the latter at no less than the rotational speed imparted to the tube by working rolls and by advancing the mandrel at a speed no less than the longitudinal speed of the tube as it exits from the pass provided by the working rolls and the tube-confining disks.
- FIG. 1 is a side elevational view, devoid of supporting structure, of the working rolls and disks used in apparatus of the present invention.
- FIG. 2 is an end elevational view of the parts seen in FIG. 1 and generally corresponding to the line 22 thereof,
- FIG. 3 is a fragmentary, generally diagrammatic side elevational view of apparatus embodying the present invention.
- FIG. 4 is a view like FIG. 1, but with certain parts omitted,
- FIG. 5 is a transverse sectional view, generally corresponding to the line 55 of FIG. 1, but showing supporting structure for the rolls and the disks,
- FIG. 6 is a fragmentary sectional view generally corresponding to the line 6-6 of FIG. 5,
- FIG. 7 is a view similar to FIG. 5 but showing certain parts in other positions
- FIG. 8 is a side elevational view of a sub-assembly
- FIG. 9 is an exploded view of the sub-assembly seen in FIG. 8 and with certain parts shown in section to better illustrate the underlying structure
- FIG. 10 is a fragmentary enlarged view, partially in section, of a modified sub-assembly
- FIG. 11 is a view similar to FIG. 6 but of the modification seen in FIG. 10.
- a pair of barrelshaped, working rolls 10 are disposed in adjoining relation to define a pass therebetween for the tube T to be elon- 3 gated. Rolls are disposed in opposed relation relative to the tube and their axes are inclined in opposite directions with respect to the tube axis, as best seen in FIG. 1 for reasons to appear. Although not shown, rolls 10 are adapted to be simultaneously rotated in the directions indicated by any suitable means.
- disks 11 are disposed in diametrically opposed relation for engagement with opposite sides of the tube being elongated at the pass provided by the rolls and are adapted to be rotated in the directions indicated by any suitable arrangement.
- the peripheries of disks 11 are configurated for conformity with the exterior of the tube being elongated.
- a tube T will be fed from left to right between the rolls 10. Since the latter are inclined in opposite directions, they will not only impart rotation to the tube, but will also draw the tube between the rolls and move it axially to the right. Since the spacing between the rolls is less than the transverse size of the entering tube, such tube will exit from the pass reduced in transverse size and elongated in length.
- a suitably sized mandrel 12 is disposed within the tube prior to passage thereof between the rolls 10, such mandrel rotating and moving axially with the tube as it passes through the rolls.
- a tube entry table 14 is disposed to the left of frame 13 while a tube exit table 15 is disposed to the right thereof.
- the exit table may be provided with the usual tube supporting rollers 16 or the like; however, at the entry table 14, a conveyor 17 mounts a series of V-blocks 18 in which the entering tube is cradled.
- a carriage 19 having a rotably mounted head 20 engageable with the previously mentioned mandrel 12.
- a suitable drive motor 190 elfects rotation of head 20 and consequent rotation of the mandrel 12 in a manner later to appear.
- the means presently provided for advancing the carriage 19 and the engaged mandrel to the right may comprise a link 21 connecting the carriage to the conveyor 17.
- the V-blocks cradling the entering tube will feed the latter to the right into the pass provided by the working rolls 10 and the tube-confining disks 11 while the carriage 19, moving with the conveyor, will feed the mandrel 12 to the right with the tube.
- V-blocks 18 since the V-blocks 18 have only frictional engagement with the tube portion resting thereon, such blocks may move to the right at a rate of movement greater than the axial rate of movement to the right of the supported tube portion into the previously mentioned, working roll pass.
- the disks 11 and the tube T are shown, if it be assumed that the axes of rolls 10 are disposed at, for example, an angle of six degrees with the axis of the tube and if it further be assumed that rolls 10 are rotated at a peripheral speed of, say 1000 feet per minute and disregarding for the moment the disks 11, the tube will in theory be rotated by the rolls at the same peripheral speed as that of the rolls and a resultant axial component will be developed which will in theory axially shift the tube through the pass provided by the rolls 10 at a rate of 105 feet per minute. In normal practice, however, the disks 11 are rotated in the directions indicated and at respective peripheral speeds considerably in excess of the rate of tube advance caused by the rolls and thus the tube is assisted in its passage between the rolls and the disks.
- the over-driven disks 11 may cause the tube to advance beyond the pass at a rate of of the theoretical rate resulting from operation of the working rolls alone. In the present example, therefore, the tube would be discharged from the pass at a speed of about feet per minute.
- disks 11 can be driven at even greater speeds to still further increase tube output speed, the increased burnish'ng action may prove detrimental to the tube outer surface and, disk wear increases markedly to a point where the increase in tube output speed is offset by rapid disk wear.
- the mandrel is rotated at a speed equal to the rotational speed imparted to the tube by the working rolls and the mandrel is advanced at a speed equal to the speed at which the tube exits from the roll-disk pass, it is to be understood that the present invention contemplates both rotation of the mandrel and advance thereof at even greater speed to still further increase tube throughput speed.
- the rolls 10 are rotatably mounted in respective chocks 23 which are slidable along ways 24, formed in the previously mentioned housing or frame 13, toward and away from each other to vary the spacing between the rolls.
- the positions of chocks 23 along the ways 24 may be adjusted by any convenient means and, as herein disclosed, screw threaded rods 25 are rotatably anchored in respective chocks and pass through threaded apertures in respective bridging members 26 removably secured to the frame 13.
- Disks 11 are also movable toward and away from each other to vary the spacing therebetween and since the structures mounting these disks are similar, that mounting the upper disk 11 will only be described in detail. Still referring to FIG. 5 but also referring to FIGS. 6 and 7, upper disk 11 is carried by a sub-frame 27 providing spaced arms 28 between which the disk is disposed. The free ends of arms 28 provide seats 29 for receiving respective bearings 30 (only one of which can be seen in FIG. 5) mounted in axially spaced relation on a shaft 31. Disk 11, of course, is mounted on the shaft 31 intermediate the bearings 30 in a manner later to be described in detail.
- Bearing seats 29 are split longitudinally along the axis of shaft 31 to provide cap portions 32 removably secured in position by suitable fastening members 33.
- Shaft 31 is preferably elongated at 34 for removable connection to a suitable drive shaft which, however, is not shown in the drawings.
- the central portion 35 of shaft 61 has a diameter greater than the outside diameter of bearing for a purpose to appear and is further provided with a fixed shoulder 36 for abutting and axially locating the disk 11.
- the latter has a bore 37 closely fitting with shaft portion and an internally threaded locking ring 38 is threaded upon shaft portion 35 to removably retain the disk assembled with the shaft.
- a suitable key or spline arrangement may be provided to insure against rotation between the shaft and the disk.
- frame 1 3 is provided with an enlarged opening 39 for receiving the sub-frame, and pairs of opposed ribs 40 closely fit within respective slots 41 formed in the sub-frame and which extend longitudinally of respective sub-frame legs 28.
- the vertical position of sub-frame 27 may be adjusted by a screw threaded rod 42 which is rotatably anchored to the subframe and passes through a threaded aperture in a bridging member 43 removably secured to the frame 13.
- bridging member 4361 is formed integrally with the main frame 13 rather than being separable therefrom as is member 43.
- threaded rod 42a preferably is not rotatably anchored to the subframe 27a but merely bears against the lower end thereof.
- disks 11 are prone to wear since they are generally driven as a rotational speed in excess of the speed of axial movement of the tube being elongated. Accordingly, it is necessary to restore the working peripheries of such disks at relatively frequent intervals and to replace them with new disks when they are no longer serviceable.
- the drive shaft (not shown) normally connected to the shaft 31 will be disconnected therefrom and the bolts securing the bridging member 43 will be removed to permit the entire sub-frame 27 with its disk to be raised along the ribs 40 until such sub-frame assembly is free of the main frame 13.
- a previously prepared, identical sub-frame assembly will next to lowered in place, properly secured in position and the drive shaft reconnected to the shaft 31 of such identical assembly whereupon production may be resumed.
- the worn disk 11 may now leisurely be removed from its subframe by lateral movement of the shaft (see FIG. 9). With the shaft and disk removed as a unit from the sub-frame, the disk may readily be re-ground to restore its working periphery.
- the subframe may be dimensioned to pass freely between rather than slidably along the main frame ribs 40 which cooperate with the upper sub-frame.
- Such construction would require the main frame ribs 40a to be dimensioned to slidably fit with the lower sub-frame.
- the right-hand bearing 30.1 is not mounted directly in the 'seat 29.1 of the sub-assembly leg 28.1 but instead is mounted in a sleeve 46 which is in turn disposed in the leg seat 29.1.
- Sleeve 46 is not tightly gripped in the leg seat 29.1 but rather is slidable axially therein for a purpose to appear.
- a plate 47 Removably secured within the right-hand end of sleeve 46 by any suitable means, as by threading the parts together, is a plate 47 to which is anchored an adjustment screw 48.
- a housing 49 Secured to the leg 28.1 in concentric relation with the sleeve 46 is a housing 49 rotatably mounting a worm gear 50 having threaded engagement with the screw 48.
- a worm 51 is engaged with the worm gear 50 and has operative connection with an adjusting shaft 52 whereby rotation of the latter effects rotation of the worm and consequent rotation of the worm gear.
- the bearing 30.1 in the other sub-assembly leg 28.1 may be axially slidable within its seat in the leg to provide for axial movement of the shaft 31.1 as will next appear.
- the main frame ribs 40.1 instead of being integral as seen in FIG. 6, are formed of separate pieces which include laminations or shims 53. Capscrews 54 retain respective rib pieces in assembled relation.
- shims 53 on one side of the sub-frame assembly 27.1 may be removed and installed on the opposite side of such assembly. As will be clear, this will not change the spacing between opposed ribs but will shift such spacing thereby re-positioning the sub-frame and its disk.
- sub-frame assemblies each rotatably mounting respective disk and each removably secured to said main frame to provide, with minimum loss of production time, for ready disassembly of said sub-frame assemblies therefrom and ready assembly of other sub-frame assemblies therwith, when said disks must be refaced or replaced.
- each disk is mounted on a supporting shaft which is journaled in a respective sub-frame assembly
- adjustment means is mounted on each sub-frame assembly and each has connection with respective shafts aforesaid for axially shifting the latter and the disks mounted thereon.
- bearing assemblies are secured to said shaft and are interposed between the latter and respective legs aforesaid, wherein retaining means removably retain said bearings assembled with respective legs and said retaining means being removable to provide for assembly and disassembly of said shaft with said legs in a direction longitudinally of the latter, wherein said shaft provides a seat intermediate said bearing assemblies for mounting said disk,
- said disk is centrally apertured to pass one end of said shaft during assembly and disassembly operations therewith,
- said disk aperture is of a size to pass the bearing assembly at said shaft one end to provide for removal of said disk from said shaft without disturbing said shaft bearings.
- said frame also having vertical guide surfaces above and below said pass
- a bearing for each disk slidable along a respective vertical guide surface toward and away from said pass, the bearing for the upper disk being movable upwardly along the upper vertical guide surface to disassembled relation with said frame,
- the upper vertical guide surface being in vertical alignment with the lower vertical guide surface but being constructed and arranged so that after the bearing for the upper disk has been disassembled from said frame, the bearing for the lower disk may be. moved upwardly along its vertical guide surface, upwardly through the pass area and upwardly and through said upper vertical guide surface to disassembled relation with said frame,
- said roll bearings being slidable away from said pass an amount sufiicient to permit said lower bearing and its disk to move vertically through the pass area.
- said frame also having a pair of spaced vertical guide surfaces above and below said pass,
- a bearing for each disk slidable along a respective pair of vertical guide surfaces toward and away from said pass, the bearing for the upper disk being movable upwardly along the upper pair of vertical guide surfaces to disassembled relation with said frame,
- the upper and lower pairs of vertical guide surfaces being in vertical alignment, with the spacing between the lower pair of guide surfaces and the bearing confined therebetween being sufficiently less than the spacing between the upper pair of guide surfaces and the bearing confined therebetween, respectively, so that after the bearing for the upper disc has been disassembled from the frame, the bearing for the lower disk may be moved upwardly along its pair of lower vertical guide surfaces, upwardly through the pass area, and upwardly between said pair of upper guide surfaces to disassembled relation with said frame,
- said roll bearings being slidable away from said pass an amount sufiicient to permit said lower bearing and its disk to move vertically through the pass area.
- a cap plate is removably connected to said frame and is connected to the bearing for the upper disk to provide for adjustment of such bearing toward and away from said pass, said cap plate when disconnected from said frame being movable with the bearing for said upper disk when such hearing is slid upwardly to disassembled relation with said frame.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77612468A | 1968-11-15 | 1968-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3566653A true US3566653A (en) | 1971-03-02 |
Family
ID=25106523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US776124A Expired - Lifetime US3566653A (en) | 1968-11-15 | 1968-11-15 | Tube reducing and elongating apparatus |
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US (1) | US3566653A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3845646A (en) * | 1971-11-11 | 1974-11-05 | Mannesmann Roehren Werke Ag | Diagonal rolling mill |
US4038856A (en) * | 1975-10-08 | 1977-08-02 | Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft | Driven roller assembly for supporting, conveying, bending, straightening or deforming a continuously cast strand |
FR2369025A1 (en) * | 1976-05-04 | 1978-05-26 | Aetna Standard Eng Co | DEVICE FOR GUIDING THE PIECES IN A DRILLING OR STRAIGHTENING ROLLER |
US4121446A (en) * | 1976-07-12 | 1978-10-24 | Innocenti Santeu-Stacchio, S.P.A. | Housing for a rolling mill |
FR2492284A1 (en) * | 1980-10-21 | 1982-04-23 | Nippon Kokan Kk | ROLLER FOR STEEL TUBES |
DE3132712A1 (en) * | 1981-08-19 | 1983-03-03 | Kocks Technik Gmbh & Co, 4010 Hilden | PIPE SLOPE ROLLING MILL |
FR2593417A1 (en) * | 1986-01-24 | 1987-07-31 | Mannesmann Ag | ROLLER OF OBLIQUE CYLINDERS TUBES |
US4827749A (en) * | 1985-07-12 | 1989-05-09 | Kocks Technik Gmbh & Co. | Methods and apparatus for reducing seizing in transverse rolling of seamless tube blanks |
US5207960A (en) * | 1990-05-30 | 1993-05-04 | Compagnie Plastic Omnium | Method for the manufacture of thin tubes of fluorinated resin, particularly of polytetrafluoroethylene |
WO1993018870A1 (en) * | 1992-03-23 | 1993-09-30 | Mosey George N | Piercing mill for seamless tube manufacture |
US6253593B1 (en) * | 1997-10-15 | 2001-07-03 | Sumitomo Metal Industries, Ltd. | Piercer roll exchanging apparatus for vertical piercing mill and piercer roll exchanging method |
US20120090141A1 (en) * | 2009-03-25 | 2012-04-19 | Hegenscheidt-Mfd Gmbh & Co. Kg | Deep rolling roller of a deep rolling machine arranged detachably on a housing |
US20130032969A1 (en) * | 2011-08-05 | 2013-02-07 | Baker Hughes Incorporated | Permeable material compacting apparatus and method |
EP2602031A1 (en) * | 2011-12-09 | 2013-06-12 | SMS Meer GmbH | Cone piercing mill for producing seamless tubes |
US8664318B2 (en) | 2011-02-17 | 2014-03-04 | Baker Hughes Incorporated | Conformable screen, shape memory structure and method of making the same |
US8684075B2 (en) | 2011-02-17 | 2014-04-01 | Baker Hughes Incorporated | Sand screen, expandable screen and method of making |
US8720590B2 (en) | 2011-08-05 | 2014-05-13 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
US8721958B2 (en) | 2011-08-05 | 2014-05-13 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
US9017501B2 (en) | 2011-02-17 | 2015-04-28 | Baker Hughes Incorporated | Polymeric component and method of making |
US9044914B2 (en) | 2011-06-28 | 2015-06-02 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
RU2722952C1 (en) * | 2019-06-20 | 2020-06-05 | Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) | Method of rolling pipe workpieces |
RU2821470C1 (en) * | 2023-12-06 | 2024-06-24 | Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) | Four-roll helical rolling mill roll assembly |
-
1968
- 1968-11-15 US US776124A patent/US3566653A/en not_active Expired - Lifetime
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3845646A (en) * | 1971-11-11 | 1974-11-05 | Mannesmann Roehren Werke Ag | Diagonal rolling mill |
US4038856A (en) * | 1975-10-08 | 1977-08-02 | Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft | Driven roller assembly for supporting, conveying, bending, straightening or deforming a continuously cast strand |
FR2369025A1 (en) * | 1976-05-04 | 1978-05-26 | Aetna Standard Eng Co | DEVICE FOR GUIDING THE PIECES IN A DRILLING OR STRAIGHTENING ROLLER |
US4121446A (en) * | 1976-07-12 | 1978-10-24 | Innocenti Santeu-Stacchio, S.P.A. | Housing for a rolling mill |
US4387584A (en) * | 1980-10-21 | 1983-06-14 | Nippon Kokan Kabushiki Kaisha | Steel pipe rolling mill |
FR2492284A1 (en) * | 1980-10-21 | 1982-04-23 | Nippon Kokan Kk | ROLLER FOR STEEL TUBES |
AT385924B (en) * | 1981-08-19 | 1988-06-10 | Kocks Technik | PIPE ROLLING MILLS |
DE3132712A1 (en) * | 1981-08-19 | 1983-03-03 | Kocks Technik Gmbh & Co, 4010 Hilden | PIPE SLOPE ROLLING MILL |
US4827749A (en) * | 1985-07-12 | 1989-05-09 | Kocks Technik Gmbh & Co. | Methods and apparatus for reducing seizing in transverse rolling of seamless tube blanks |
FR2593417A1 (en) * | 1986-01-24 | 1987-07-31 | Mannesmann Ag | ROLLER OF OBLIQUE CYLINDERS TUBES |
US4771624A (en) * | 1986-01-24 | 1988-09-20 | Mannesmann Ag | Thrust mount for tube rolling mills |
US5207960A (en) * | 1990-05-30 | 1993-05-04 | Compagnie Plastic Omnium | Method for the manufacture of thin tubes of fluorinated resin, particularly of polytetrafluoroethylene |
WO1993018870A1 (en) * | 1992-03-23 | 1993-09-30 | Mosey George N | Piercing mill for seamless tube manufacture |
US5406820A (en) * | 1992-03-23 | 1995-04-18 | Mosey; George N. | Piercing mill for seamless tube manufacture |
US6253593B1 (en) * | 1997-10-15 | 2001-07-03 | Sumitomo Metal Industries, Ltd. | Piercer roll exchanging apparatus for vertical piercing mill and piercer roll exchanging method |
US8567025B2 (en) * | 2009-03-25 | 2013-10-29 | Hegenscheidt-Mfd Gmbh & Co. Kg | Deep rolling roller of a deep rolling machine arranged detachably on a housing |
US20120090141A1 (en) * | 2009-03-25 | 2012-04-19 | Hegenscheidt-Mfd Gmbh & Co. Kg | Deep rolling roller of a deep rolling machine arranged detachably on a housing |
US9017501B2 (en) | 2011-02-17 | 2015-04-28 | Baker Hughes Incorporated | Polymeric component and method of making |
US9155983B2 (en) | 2011-02-17 | 2015-10-13 | Baker Hughes Incorporated | Method of making a shape memory structure |
US8684075B2 (en) | 2011-02-17 | 2014-04-01 | Baker Hughes Incorporated | Sand screen, expandable screen and method of making |
US8664318B2 (en) | 2011-02-17 | 2014-03-04 | Baker Hughes Incorporated | Conformable screen, shape memory structure and method of making the same |
US9044914B2 (en) | 2011-06-28 | 2015-06-02 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
US8720590B2 (en) | 2011-08-05 | 2014-05-13 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
US8721958B2 (en) | 2011-08-05 | 2014-05-13 | Baker Hughes Incorporated | Permeable material compacting method and apparatus |
US20130032969A1 (en) * | 2011-08-05 | 2013-02-07 | Baker Hughes Incorporated | Permeable material compacting apparatus and method |
EP2602031A1 (en) * | 2011-12-09 | 2013-06-12 | SMS Meer GmbH | Cone piercing mill for producing seamless tubes |
US9067249B2 (en) | 2011-12-09 | 2015-06-30 | Sms Meer Gmbh | Tapered-roll stand for making seamless pipe |
CN103157660A (en) * | 2011-12-09 | 2013-06-19 | Sms米尔股份有限公司 | Cone piercing mill for producing seamless tubes |
CN103157660B (en) * | 2011-12-09 | 2016-04-27 | Sms米尔股份有限公司 | For the manufacture of the oblique cone milling train of seamless pipe |
RU2722952C1 (en) * | 2019-06-20 | 2020-06-05 | Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) | Method of rolling pipe workpieces |
RU2821416C1 (en) * | 2023-10-09 | 2024-06-24 | Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) | Method of screw piercing in four-roll mill |
RU2821470C1 (en) * | 2023-12-06 | 2024-06-24 | Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) | Four-roll helical rolling mill roll assembly |
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