US3839887A - Ring roll mill - Google Patents

Ring roll mill Download PDF

Info

Publication number
US3839887A
US3839887A US00357778A US35777873A US3839887A US 3839887 A US3839887 A US 3839887A US 00357778 A US00357778 A US 00357778A US 35777873 A US35777873 A US 35777873A US 3839887 A US3839887 A US 3839887A
Authority
US
United States
Prior art keywords
ring
roll
workpiece
carriage
diameter
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
Application number
US00357778A
Other languages
English (en)
Inventor
G Vieregge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3839887A publication Critical patent/US3839887A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length

Definitions

  • a ring roll mill for increasing the diameter of a ring shaped workpiece comprises an outer disc roll which is adapted to engage against the exterior periphery of the workpiece and a roll mandrel which is adapted to engage within the workpiece against the interior wall opposite to the outer disc roll.
  • Each roll is mounted on a carriage which may be separately driven such as by a fluid pressure drive.
  • a sensor roll is hydraulically biased against the periphery of the workpiece and it senses changes of diameter of the workpiece and effects movement of at least the carriage carrying the outer disc roll.
  • the two rolls are advantageously mounted so that they move constantly away from the central axis of the ring by half the amount of the instantaneous increase of the ring diameter.
  • the ring workpiece is advantageously supported on a plurality of angularly spaced, radially extending conical rollers.
  • the workpiece is also advantageously engaged from respective opposite sides by fluid pressure biased centering rollers.
  • This invention relates in general to the construction of a ring roll mill and, in particular, to a new and useful ring roll mill for increasing the diameter of ring shaped workpieces which includes an outer disc roll adapted to engage against the exterior periphery of the workpiece and an inner roll mandrel engageable against the inte rior of the ring opposite to the outer disc roll and wherein the increase in diameter of the ring shaped workpiece is effected by reducing the distance between the roll touching the inside of the ring and the roll touching the outside of the ring while the two rolls are guided for radial movement relative to the center of the ring.
  • adjustable ring boundaries for guiding the ring during the rolling process and/orfor calibrating the finished ring act on the ring either under a centering angle which varies greatly in dependence on the ring diameter and is thus of varying effectiveness, for example if limiting rollers are used which are arranged on stationary pivoted levers. Otherwise the means for moving the ring must be moved by means of a mechanically complicated system corresponding to the translatory movement of the circumferential points of the ring. In addition it is very difficult in ring roll mills having additional rolls which work on the end faces of the ring, particularly with thin ring walls, to control the movement and/or speed of these rolls so that the rolling process takes place without difficulty with the desired quality of the workpiece. The known embodiments of such ring roll mills were not fully satsifactory.
  • U.S. Pat. No. 2,132,370 describes a ring roll mill having a central axis of the ring which remains stationary during the rolling. This is achieved by employing a conical roll mandrel, which is equiped with several rolls of varying diameter and which bear on the entire inside diameter of the ring. The conical roll mandrel is moved vertically so that it widens the ring and it is passed against several radial rolls bearing on the outside diameter of the ringfSuch a rolling mill, however, permits only relatively minor diameter increases.
  • a ring roll mill wherein the central ring axis remains stationary during the rolling and all the rolling mill parts which are required act on the end faces or the outside diameter of the ring.
  • conical rolls are oriented in angularly spaced Iocations with their apices centered in respect to the center of the ring and they form ring supports;
  • the invention employs an outerdisc roller which bears against the exterior periphery of the workpiece and an inner roll mandrel which engages the interior wall opposite to the outer disc roll.
  • the outer and inner rolls are mountedin a carriage which can be displaced in the radial direction of the ring and which will move constantly away from the central axis of the ring by half the amount of the instantaneous increase of diameter of the ring.
  • a ring roll mill of the invention having a stationary central ring axis, all of the other rolling mill parts which are in contact with the ring to be rolled pass through simple translatory paths of motion because they can either be kept stationary or they can be moved on a recti linear path radially to the ring.
  • the control of the carriages which carry the outer and inner rolls which bear against the respective outer and inner wall portions of the ring can be effected by means of known sensors or feelers which engage the periphery of the workpiece and determine the ring. diameter or which may be employed to determine the ring diameter without actual contact therewith.
  • the displacement of the carriage is controlled by the movement of a scanning device, in the form of a feeler roll or a tactile feeler.
  • the support of the two rolls which engage the workpiece preferably are designed so that the roll touching the outside of the ring is mounted in a fixed position in the carriage and the roll touching the inside of the ring is displaceable in the carriage relative to the stationary roll.
  • the ring roll mill can be so designed that the carriage and the feeler can be displaced in synchronism relative to the ring and independently of each other and this synchronous movement can be lifted for the control of 'the carriage movement by the feeler.
  • the lifting and restoration of the synchronous run of the carriage and the scanning device can be ef fected by the ring workpiece itself particularly by a signal generated by the ring on the scanning device.
  • a preferred embodiment of the ring roll mill provides that at least the two supporting rollers are rotatably but stationarily mounted in the mill frame and they preferably have the form of a truncated cone which lie with their cone apices on the center axis of the ring. This has the effect that the path speeds of the ring, which increase from the inside to the outside, in accordance with ring width, are identical with the speeds of those contacting circumferences of the sup porting rolls.
  • the rings must be rolled axially in order to achieve a given finished size.
  • Four-rolling roll mills are known which include a pair of rolls acting on the two curved ring surfaces and which comprise a so-called disc roll and a roll mandrel that can be displaced relative to the latter, and in addition, a pair of conical rolls working on the end faces of the ring are provided.
  • the conical rolls are displaced and controlled independence on the increase of the ring diameter so that it always acts on the end faces of the ring.
  • such a pair of conical rolls can also be provided additionally, where at least one roll is driven and the distance of the rolls from each other is variable. According to the invention the coni?
  • cal rolls are radially indisplaceable with regard to the stationary central axis of the ring which is fixed by the positions of the carriage and the scanning device. and the cone apices of the rolls lie on the center axis of the ring.
  • This has the effect that the path speed, which increases from the inside to the outside over the ring width is identical with the speed of the ring touching circumference of the conical rolls, so that a slip-free rolling is ensured, and the stationary position of the conical rolls in the rolling mill frame provides the additional advantage that the retaining, shifting and driving means can be much simpler.
  • the feeler or sensor for the ring diameter is arranged in a known manner in the lane defined by the axes of the rolls touching the inside and the outside of the ring.
  • centering rollers are usually provided to act on the ring circumference and which are mounted so that can be displaced independence on the increase of the ring diameter. Such centering rollers serve primarily to keep the ring in a position symmetrical to the longitudinal axis of the rolling mill.
  • the centering rollers are arranged on the rolling mill frame and guides which permit a displacement of the rollers in a radial direction of the ring.
  • the centering rollers bear constantly on the outside diameter of the ring so that they are moved by the ring radially to the outside upon diameter increase of the ring.
  • a continuous biasing or restoring force is exerted on the centering rollers in order to prevent them from migrating laterally.
  • the position of the rollers can be used to provide a control for the displacement of the carriage carrying the radial rolls which act on the ring.
  • the centering rollers perform the function of a control feeler so that a separate additional feeler is not necessary.
  • the centering rollers may be used to provide a control for displacing the carriages carrying the rolls which act on the mill cross-section.
  • the centering rollers are advantageously provided with locking means so that the deflection of the roller can be set to a preselected maximum value and the circumferential surface of the centeringrollers can be profiled. This makes it possible to calibrate the rings which are being formed so that they accurately attain their final diameter during rolling and it is even possible to provide them with a profile.
  • a ring roll mill for increasing the diameter of ring shaped workpieces which comprises an outer disc roll which is adapted to engage the exterior periphery of the ring shaped workpiece and an inner roll mandrel which engages the interior wall of the workpiece opposite to the outer disc roll and which includes means for supporting these rolls so that they may be moved relatively toward and away from the workpiece and which includes means for controlling the movement of the rollers during the formation of the workpiece.
  • a further object of the invention is to provide a ring roll mill which is simple in design, rugged in construction and economical to manufacture.
  • FIG. 1 is a top plan view of a roll mill constructed in accordance with the invention.
  • FIG. 2 is a section taken along the line ll-ll of FIG.
  • the invention embodied therein comprises a ring roll mill for increasing the diameter of a ring shaped workpiece 7 which includes a first carriage 2 which rotatably supports a driven disc roll 3 having a shaft driven by a motor 3a.
  • the carriage 2 is mounted in guides of a rolling mill frame I for displaceable movement toward and away from the ring shaped workpiece 7.
  • First carriage movement means includes a fluid pressure driven motor 6 in the form of a cylinder 6a in which a piston 6b is movable.
  • the piston 6b includes a piston rod 6c which is connected to the carriage 2 for displacing the carriage.
  • a second roll or inner roll mandrel 5 is rotatably supported on a supporting frame 5a which is braced by a cross bar member 30 which is formed as an extension of the cylinder 6a.
  • the inner roll mandrel 5 is advantageously mounted in removable end supports of the frame 5a in order to permit it to be inserted on the interior of the ring shaped workpiece 7.
  • the roll mandrel 5 and the disc roll 3 are displaced relatively to either move them together toward the workpiece 7 or to move them in an opposite outward direction and the spacing between the disc roll 3 and the roll mandrel 5 varies during the rolling procedure.
  • the ring is supported by a plurality of angularly spaced conical rolls 8 which are arranged around the center of the ring workpiece 7.
  • the conical rolls 8 are rotated by separate drive motors as indicated schematically by the arrows 8a in FIG. 2.
  • the rolls 8 are rotatably supported in the rolling mill frame 1 and their spaces lie on the center axis 9 of the ring workpiece 7.
  • the arrangement also includes a plurality of centering rollers 11 which are arranged around the periphery of the workpiece 7 and which are carried on piston rods;
  • the fluid pressure cylinder guides 12 permit a displacement of the rollers in the radial direction of the ring to accommodate for changes in diameter thereof.
  • the displacement of the rollers 11 can be affected by an increase of the ring diameter or by a control exercise by directing fluid pressure to the fluid pressure cylinder 12.
  • a sensor roller or feeler roller 10 which bears on the outer circumference of the ring shaped workpiece 7.
  • the roller 10 is advantageously arranged above a large diameter conical roll 8 and it comprises a measuring feeler which is carried on a piston rod 10a of a piston 10b which is movable in a control cylinder 13. Any change in movement of the piston 10b or variations of the pressure within the control cylinder 13 are sensed by a control 14 which includes means for selectively pressurizing fluid pressure control cylinders 4 and 4' to move pistons 4a to effect the displacement of the carriage 2 with the disc roll 3 relative to the inner roll mandrel 5.
  • the ring diameter increases and the feeler roll moves to the right so that the carriage 2 with the rolls 3 and 5 move constantly away from the central axis 9 of the ring at a speed which is equivalent to half the amount of the instantaneous increase of the ring diameter and under the influence of the guidance control device 14.
  • the ring shaped workpiece 7 is supported by the smaller diameter conical rollers which are rotatably mounted on the frame 1. In the embodiment shown, the
  • the conical rolls 8 on the ring circumference of the workpiece 7 so that their vertical plane of symmetry forms with the sectional plane II-Il an angle and preferably in such a way that with a clockwise rotation of the ring 7 when viewed in FIG. 1, the conical rolls 8 are radially immov able when turned upward and their cone apices are also in the central axis of the ring.
  • Such a measure results in a selfcentering of the ring 7 so that the position of the ring is stabilized and the centering rollers 11 can be completely or partly removed.
  • the conical rolls 8 act, for example on the same point of the ring circumference as the upper centering roller 11 shown in FIG. 1 and therefore could replace this roller.
  • a ring roll mill for increasing the diameter of ring shaped workpieces, comprising an outer disc roll adapted to engage against the interior periphery of a ring shaped workpiece, a roll mandrel adapted to en gage against the interior wall of said ring shaped workpiece opposite to said outer disc roll, a first carriage rotatably supporting said outer disc roll, a second carriage rotatably supporting said inner roll mandrel, carriage movement means connected to said first and second carriages for shifting said outer disc roll and said inner roll mandrel relatively to shift them toward and away from each other and to shift them together to accommodate for changes in diameter of the workpiece, and sensor means adjacent the workpiece for sensing the diameter thereof and connected to said carriage movement means to displace said outer disc roll and said inner roll mandrel in a radial direction in respect to the workpiece ring and away from the central axis of the ring at a rate equal to half the amount of the instantaneous increase of the ring diameter during rolling.
  • a ring roll mill according to claim 1, wherein said sensor comprises a roller engageable with the periphery of the ring shaped workpiece andis movable in accordance with the changes of the ring diameter.
  • a ring roll mill according to claim 1, wherein said sensor means includes a relatively small roller engageable with the periphery of the ring shaped workpiece. and fluid pressure means supporting said roller and urging it against said workpiece and being responsive to outward movement of said roller to actuate said carriage movement means.
  • a ring roll mill according to claim 1, wherein said first carriage is fixed and said second carriage carrying said inner roll mandrel is movable.
  • a ring roll mill including a plurality of centering rollers engaging the periphery of said ring, said sensor including a. feeler engaged with the ring to sense the outer ring diameter.
  • a ring roll mill according to claim 1, wherein said carriage movement means includes a fluid pressure cylinder having a movable piston therein connected to said first-carriage for displacing said carriage toward and away from said ring shaped workpiece and said inner roll mandrel and a second fluid pressure operated piston cylinder having a second piston movable therein connected to said second carriage for displacing said inner roll mandrel therewith, said first and second carriages being interengaged and being guided for relative movement.
  • a ring roll mill including at least two supporting rollers arranged at angularly spaced locations below the ring shaped workpiece and upon which the end of the ring shaped workpiece is engaged, said supporting roller comprising truncated cones having apices at the central axis of said ring.
  • a ring roll mill including at least two conically shaped rollers acting on .the respective ends of said ring shaped workpieces at least one of which is rotatably driven and including a plurality of conical support rollers arranged in radial spaced relationship with their apices being located at the center of said ring shaped workpiece, said sensor including a roller engageable with the periphery of the workpiece at a location opposite to said inner roll mandrel.
  • a ring roll mill according to claim 8, wherein said conical rolls acting on each end of said ring are arranged on each side of said sensor roll.
  • a ring roll mill including a plurality of centering rolls arranged around the pe riphery of the ring shaped workpiece in engagement therewith, each centering roll having a fluid piston connected thereto, a fluid pressure cylinder supporting said piston and guiding said piston, said centering rolls being displaceable in a radial direction.
  • a ring roll mill according to claim 10, wherein said centering rolls comprise said sensor means.
  • a ring roll mill including a plurality of conical support rollers arranged below said ring and supporting said ring each having apices which intersect at the center of said ring, the plane defined by the vertical axes of said disc roll, said inner roll mandrel and the workpiece ring intersecting at the central axis of said ring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
US00357778A 1972-05-09 1973-05-07 Ring roll mill Expired - Lifetime US3839887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2222608A DE2222608C2 (de) 1972-05-09 1972-05-09 Ringwalzwerk

Publications (1)

Publication Number Publication Date
US3839887A true US3839887A (en) 1974-10-08

Family

ID=5844437

Family Applications (1)

Application Number Title Priority Date Filing Date
US00357778A Expired - Lifetime US3839887A (en) 1972-05-09 1973-05-07 Ring roll mill

Country Status (7)

Country Link
US (1) US3839887A (enrdf_load_stackoverflow)
JP (1) JPS4961059A (enrdf_load_stackoverflow)
DE (1) DE2222608C2 (enrdf_load_stackoverflow)
FR (1) FR2183988B1 (enrdf_load_stackoverflow)
GB (1) GB1425733A (enrdf_load_stackoverflow)
SE (1) SE408027B (enrdf_load_stackoverflow)
SU (1) SU650485A3 (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6070443A (en) * 1995-08-30 2000-06-06 Nsk Ltd. Apparatus for forming an annular member
US20090113971A1 (en) * 2007-11-01 2009-05-07 Firth Rixson Limited Ring mill apparatus and method
US20150283592A1 (en) * 2014-04-08 2015-10-08 Sms Meer Gmbh Multi-roll table ring-rolling mill as well as method for rolling rings in a multi-roll table ring-rolling mill
US20150290689A1 (en) * 2014-04-11 2015-10-15 Sms Meer Gmbh Forming machine, particularly ring-rolling machine
CN107639191A (zh) * 2017-09-14 2018-01-30 马鞍山市广源法兰环件有限公司 纠偏防粘渣大型碾环机
CN107716812A (zh) * 2017-09-14 2018-02-23 马鞍山市广源法兰环件有限公司 限位捶打型大型碾环机
CN107774847A (zh) * 2017-09-14 2018-03-09 马鞍山市广源法兰环件有限公司 大型碾环机用双辊挤压成型装置
CN107790523A (zh) * 2017-09-14 2018-03-13 马鞍山市广源法兰环件有限公司 一种不锈钢环件内外圆成型装置
US10065234B2 (en) 2014-04-11 2018-09-04 Sms Group Gmbh Forming machine and method for control of a forming machine
CN110711834A (zh) * 2018-07-11 2020-01-21 上海电气上重铸锻有限公司 半圆环形件的成形设备及方法
CN112044957A (zh) * 2020-09-03 2020-12-08 鑫鹏源(聊城)智能科技有限公司 微抱型穿孔机机内辊
CN114273570A (zh) * 2022-01-04 2022-04-05 中南大学 一种用于大型环件轧制的辅助支撑装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823815B2 (ja) * 1978-05-31 1983-05-17 住友金属工業株式会社 リング圧延機の制御方法
DE3006294A1 (de) * 1980-02-20 1981-10-01 Bruno Jakob 6601 Ensheim Brück Ringwalzwerk
US5085679A (en) * 1990-11-23 1992-02-04 Owens-Corning Fiberglas Corporation Glass spinner manufacture
DE19629996A1 (de) * 1996-07-25 1998-01-29 Freudenberg Carl Fa Verfahren zur Aufweitung eines ringförmigen Rohlings aus metallischem Werkstoff
RU2260492C1 (ru) * 2004-02-10 2005-09-20 Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения им. акад. Целикова" (ОАО АХК "ВНИИМЕТМАШ") Способ прокатки колец

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186202A (en) * 1961-12-22 1965-06-01 Wagner & Co Werkzeugmaschf Ring rolling machine
US3698218A (en) * 1968-07-31 1972-10-17 Banning Ag J Rolling mills
US3709011A (en) * 1969-12-05 1973-01-09 Banning Ag J Ring rolling apparatus with four rolls

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776585A (en) * 1951-11-30 1957-01-08 Kendall Edgar Homer Ring forming mill
DE1019635B (de) * 1956-08-08 1957-11-21 Wagner & Co Werkzeugmaschinenf Ringwalzwerk
US2925003A (en) * 1958-09-30 1960-02-16 Lombard Corp Ring mill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186202A (en) * 1961-12-22 1965-06-01 Wagner & Co Werkzeugmaschf Ring rolling machine
US3698218A (en) * 1968-07-31 1972-10-17 Banning Ag J Rolling mills
US3709011A (en) * 1969-12-05 1973-01-09 Banning Ag J Ring rolling apparatus with four rolls

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6332260B1 (en) 1995-08-30 2001-12-25 Nsk Ltd. Apparatus and method of forming an annular member
US6070443A (en) * 1995-08-30 2000-06-06 Nsk Ltd. Apparatus for forming an annular member
US20090113971A1 (en) * 2007-11-01 2009-05-07 Firth Rixson Limited Ring mill apparatus and method
US7596979B2 (en) 2007-11-01 2009-10-06 Firth Rixson Ring mill apparatus and method
US9789523B2 (en) * 2014-04-08 2017-10-17 Sms Group Gmbh Multi-roll table ring-rolling mill as well as method for rolling rings in a multi-roll table ring-rolling mill
US20150283592A1 (en) * 2014-04-08 2015-10-08 Sms Meer Gmbh Multi-roll table ring-rolling mill as well as method for rolling rings in a multi-roll table ring-rolling mill
US10507502B2 (en) * 2014-04-11 2019-12-17 Sms Group Gmbh Forming machine, particularly ring-rolling machine
US10065234B2 (en) 2014-04-11 2018-09-04 Sms Group Gmbh Forming machine and method for control of a forming machine
US20150290689A1 (en) * 2014-04-11 2015-10-15 Sms Meer Gmbh Forming machine, particularly ring-rolling machine
CN107639191A (zh) * 2017-09-14 2018-01-30 马鞍山市广源法兰环件有限公司 纠偏防粘渣大型碾环机
CN107716812A (zh) * 2017-09-14 2018-02-23 马鞍山市广源法兰环件有限公司 限位捶打型大型碾环机
CN107774847A (zh) * 2017-09-14 2018-03-09 马鞍山市广源法兰环件有限公司 大型碾环机用双辊挤压成型装置
CN107790523A (zh) * 2017-09-14 2018-03-13 马鞍山市广源法兰环件有限公司 一种不锈钢环件内外圆成型装置
CN110711834A (zh) * 2018-07-11 2020-01-21 上海电气上重铸锻有限公司 半圆环形件的成形设备及方法
CN110711834B (zh) * 2018-07-11 2021-10-01 上海电气上重铸锻有限公司 半圆环形件的成形设备及方法
CN112044957A (zh) * 2020-09-03 2020-12-08 鑫鹏源(聊城)智能科技有限公司 微抱型穿孔机机内辊
CN114273570A (zh) * 2022-01-04 2022-04-05 中南大学 一种用于大型环件轧制的辅助支撑装置

Also Published As

Publication number Publication date
DE2222608C2 (de) 1984-07-05
GB1425733A (en) 1976-02-18
SE408027B (sv) 1979-05-14
FR2183988A1 (enrdf_load_stackoverflow) 1973-12-21
FR2183988B1 (enrdf_load_stackoverflow) 1975-08-22
SU650485A3 (ru) 1979-02-28
DE2222608A1 (de) 1973-11-22
JPS4961059A (enrdf_load_stackoverflow) 1974-06-13

Similar Documents

Publication Publication Date Title
US3839887A (en) Ring roll mill
SU936796A3 (ru) Кольцепрокатный стан
DE2222606C2 (de) Ringwalzwerk
JPS62220222A (ja) 金属シ−トの自動制御型ロ−ル機械
US3698218A (en) Rolling mills
JPS588458B2 (ja) 形状検出装置
US3664066A (en) Method and apparatus for aligning workpieces
US2307191A (en) Apparatus for rolling internally flanged annuli
US3962794A (en) Automatic roll position measuring apparatus for continuous casting machine
US4210294A (en) Strip reel
ATE64699T1 (de) Kaliberwalzensatz zum walzen von stabstahl und walzgeruest hierzu.
JP2837219B2 (ja) ロールプロファイルの測定方法および装置
US2329832A (en) Uncoiler
US3943634A (en) Device for measuring and controlling the gap between rollers in a roller stand
KR20240046199A (ko) 링 압연기 및 그 작동 방법
US3468151A (en) Rolling mill
US3172314A (en) Roll adjustment means
US1350057A (en) Rolling-mill
US3563077A (en) Rolling mill for rolling bushes and the like
US3678719A (en) Support system for a cross-rolling machine for shaping rod-like workpieces
US3045516A (en) Ring rolling mills
SU724240A1 (ru) Устройство дл правки изделий
US4512173A (en) Tube release rolling mills
SU852393A1 (ru) Трехвалкова клеть винтовой про-КАТКи
SU423552A1 (ru) Устройство для прокатки колец с несимметричным профилем типа фланцев