EP0235332B1 - Rolling mill stand - Google Patents
Rolling mill stand Download PDFInfo
- Publication number
- EP0235332B1 EP0235332B1 EP86102836A EP86102836A EP0235332B1 EP 0235332 B1 EP0235332 B1 EP 0235332B1 EP 86102836 A EP86102836 A EP 86102836A EP 86102836 A EP86102836 A EP 86102836A EP 0235332 B1 EP0235332 B1 EP 0235332B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stand
- rollers
- roll
- rolling
- supporting
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 11
- 239000000969 carrier Substances 0.000 claims 2
- 238000005452 bending Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
- B21B13/145—Lateral support devices for rolls acting mainly in a direction parallel to the movement of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
Definitions
- the invention relates to a roll stand with a roll changing device, in the stand windows that can be raised and lowered chocks for upper rolls and chocks for lower rolls when lowered against a movement in the direction of the roll axis in a form-locking manner, one after the other, by means of feet on the stand window, by means of supporting supports that can be removed and placed together can be moved out of the roll stand in the axial direction with the rollers.
- Such a convertible roll stand is described for example by document US-A 4 531 394.
- This roll stand enables operation both with multi-roll roll sets (FIG. 2) and with a pair of work forming a quarto. Converting from one set of rolls to another is very difficult with this solution because removing and installing the roll sets takes a lot of time.
- the support beam lying in the rolling direction from the lying above and below the recesses is equipped with counter cylinders acting against the rolling direction for the wedge blocks of multi-roller sets of rollers which serve to position the lateral intermediate rolls, then this is a precise, non-positive and reliable setting of the wedge blocks of these multi-roll roller sets possible.
- the positioning cylinders for the lower front wedge block are at the level of the relevant driving groove and a fitting piece which can be displaced with these and a corresponding fitting piece is arranged in the other driving groove for bridging the distance between the positioning cylinders and the wedge block in the gap between the mounting pieces, the lowest overall height of the support beams is achieved.
- a fitting piece bridging the distance from this can also be arranged in a suitable groove in front of the positioning cylinders of the upper front wedge block. Since this is not required for the displacement of the chocks when changing the roller, the adapter cannot be displaced in the direction of the roller axis.
- the arrangement enables the use of short positioning cylinders, which allow a good distribution of the positioning force for the wedge blocks.
- the stand cheek 1 of the roll stand on the right-hand side in the rolling direction and represented by an arrow and the corresponding stand cheek 2 of the left-hand roll stand are connected to one another on the inside of the stand window by a rear support beam 3.
- a front support beam 4 connects the stand cheeks, not shown, on the opposite side of the stand window.
- the support beams 3 and 4 are provided with grooves 5 and 6 for receiving the feet 7 of the upper chocks 8 and the feet 9 of the lower chocks 10, in which, according to FIG. 1, an upper work roll 11 and a lower work roll 12 of a four-high roller arrangement are mounted are.
- the support beams 3 and 4 have recesses 13 and 14 for the passage of the rolling stock.
- the side intermediate rolls 21 and the support rollers 22 are mounted in four wedge blocks 23, of which only the upper front is cut and the lower front is shown in view.
- the wedge blocks can be pivoted via steering axles 24. They rest on fitting strips 25 on fitting pieces 26 and 27 or on the support beam 3. They are employed by adjusting cylinders 28 in the support beam 4.
- the adapters 26 and 27 are displaceable in the grooves 5 and 6 and are pulled out of the roll stand with the chocks 15 and 16 of the multi-roller arrangement.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Crushing And Grinding (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Walzgerüst mit einer Walzenwechselvorrichtung, bei der in Ständerfenstern heb- und senkbare Einbaustücke für obere Walzen und Einbaustücke für untere Walzen beim Absenken gegen eine Bewegung in Richtung der Walzenachse formschlüssig verriegelt nacheinander über Füße auf die Ständerfenster durchsetzende Stützträger absetzbar und gemeinsam mit den Walzen in Axialrichtung aus dem Walzgerüst herausfahrbar sind.The invention relates to a roll stand with a roll changing device, in the stand windows that can be raised and lowered chocks for upper rolls and chocks for lower rolls when lowered against a movement in the direction of the roll axis in a form-locking manner, one after the other, by means of feet on the stand window, by means of supporting supports that can be removed and placed together can be moved out of the roll stand in the axial direction with the rollers.
Ein Walzgerüst nach dem Oberbegriff des Patentanspruchs 1 ist beispielsweise aus der FR-A 2 206 139 bekannt. Bei diesem Stand der Technik sind die jedem Ständerfenster zugeordneten Stützträger über Ausfahrschienen miteinander verbunden, auf denen die gegeneinander verriegelten Arbeitswalzensätze in Axialrichtung der Walzen ausfahrbar sind. Ein solches Walzgerüst wird häufig als Quarto-Walzgerüst in Tandem-Kaltwalzstraßen oder Einzelwalzgerüst verwendet. Die Walzenwechselmöglichkeit beschränkt sich jedoch auf den Einsatz gleichartiger Walzensätze. Für andere Walzensätze müßte eine Umrüstung des gesamten Walzgerüstes erfolgen, insbesondere dann, wenn das Quarto-Walzgerüst als Vielrollen-Walzgerüst betrieben werden soll, bei dem die beiden Arbeitswalzen über Zwischenwalzen gegen Stützwalzen abstützbar sind.A roll stand according to the preamble of claim 1 is known for example from FR-A 2 206 139. In this prior art, the support beams assigned to each stand window are connected to one another via extension rails on which the mutually locked work roll sets can be extended in the axial direction of the rolls. Such a mill stand is often used as a four-high mill stand in tandem cold rolling mills or as a single stand. However, the possibility of changing the rolls is limited to the use of similar sets of rolls. The entire roll stand would have to be converted for other roll sets, especially if the four-high roll stand is to be operated as a multi-roll stand, in which the two work rolls can be supported against intermediate rolls via intermediate rolls.
Ein solches umrüstbares Walzgerüst ist beispielsweise durch das Dokument US-A 4 531 394 beschrieben. Dieses Walzgerüst ermöglicht den Betrieb sowohl mit Vielrollen-Walzensätzen (Figur 2), wie auch mit einem ein Quarto bildendes Arbeitspaar. Das Umrüsten von einem zum anderen Walzensatz gestaltet sich jedoch bei dieser Lösung sehr schwierig, weil das Aus- und Einbauen der Walzensätze viel Zeit in Anspruch nimmt.Such a convertible roll stand is described for example by document US-A 4 531 394. This roll stand enables operation both with multi-roll roll sets (FIG. 2) and with a pair of work forming a quarto. Converting from one set of rolls to another is very difficult with this solution because removing and installing the roll sets takes a lot of time.
Ausgehend von dem bekannten Stand der Technik ist es Aufgabe der vorliegenden Erfindung, diesen Nachteil zu beseitigen und ein Walzgerüst zu schaffen, das Walzeneinbausätze verschiedenster Art zu verwenden und in kürzester Walzenwechselfolge beliebig gegeneinander auszutauschen erlaubt.Starting from the known prior art, it is an object of the present invention to eliminate this disadvantage and to provide a roll stand which allows the use of various types of roll installation kits and which can be interchanged with one another in the shortest possible roll change sequence.
Zur Lösung der Aufgabe werden die Merkmale des kennzeichnenden Teils des Patentanspruchs vorgeschlagen. Die Verwendung von Stützbalken mit durchlaufenden Fahmuten anstelle der bekannten Stützträger erlauben die universelle Verwendung des Walzgerüstes für Quarto-Walzensätze und Vielrollen-Walzensätze, indem Füße der Einbaustücke in die durchlaufenden Fahmuten der Stützbalken eingreifen. Dadurch ist die einfachste und schnellste Handhabungsmöglichkeit auch für zwischen den Einbaustücken liegende Wechselteile beim Austausch von Walzensätzen ermöglichtTo achieve the object, the features of the characterizing part of the patent claim are proposed. The use of support beams with continuous grooves instead of the known support supports allow the universal use of the roll stand for four-high roller sets and multi-roller sets by engaging the feet of the chocks in the continuous grooves of the support beams. This enables the simplest and quickest handling option even for interchangeable parts between the chocks when replacing roller sets
Wenn nach einem weiteren Merkmal des Patentanspruchs vorgeschlagen ist, daß der in Walzrichtung vom liegende Stützbalken oberhalb und unterhalb der Ausnehmungen mit gegen die Walzrichtung wirkenden Anstellzylindem für die der Positionierung der seitlichen Zwischenwalzen dienenden Keilblöcke von Vielrollen-Walzensätzen ausgestattet ist, so ist eine präzise, kraftschlüssige und betriebssichere Anstellung der Keilblöcke dieser Vielrollen-Walzensätze möglich. Dadurch, daß die Anstellzylinder für den unteren vorderen Keilblock in Höhe der betreffenden Fahrnut liegen und für die Überbrückung des Abstandes zwischen den Anstellzylindern und dem Keilblock in der Fahmut zwischen den Einbaustücken ein mit diesen verschiebliches Paßstück sowie in der anderen Fahrnut ein entsprechendes Paßstück angeordnet sind, wird eine geringste Bauhöhe der Stützbalken erreicht.If it is proposed according to a further feature of the patent claim that the support beam lying in the rolling direction from the lying above and below the recesses is equipped with counter cylinders acting against the rolling direction for the wedge blocks of multi-roller sets of rollers which serve to position the lateral intermediate rolls, then this is a precise, non-positive and reliable setting of the wedge blocks of these multi-roll roller sets possible. Characterized in that the positioning cylinders for the lower front wedge block are at the level of the relevant driving groove and a fitting piece which can be displaced with these and a corresponding fitting piece is arranged in the other driving groove for bridging the distance between the positioning cylinders and the wedge block in the gap between the mounting pieces, the lowest overall height of the support beams is achieved.
Entsprechend kann auch vor den Anstellzylindem des oberen vorderen Keilblockes ein den Abstand zu diesem überbrückendes Paßstück in einer geeigneten Nut angeordnet sein. Da diese für die Verschiebung der Einbaustücke beim Walzenwechsel nicht benötigt wird, ist hier eine Verschiebbarkeit des Paßstückes in Richtung der Walzenachse nicht vorgesehen. Die Anordnung ermöglicht die Verwendung kurzer Anstellzylinder, die eine gute Verteilung der Anstellkraft für die Keilblöcke ermöglichen.Correspondingly, a fitting piece bridging the distance from this can also be arranged in a suitable groove in front of the positioning cylinders of the upper front wedge block. Since this is not required for the displacement of the chocks when changing the roller, the adapter cannot be displaced in the direction of the roller axis. The arrangement enables the use of short positioning cylinders, which allow a good distribution of the positioning force for the wedge blocks.
In der Zeichnung ist ein Ausführungsbeispiel einer Walzenwechseleinrichtung eines erfindungsgemäßen Walzgerüstes mit zwei verschiedenen Walzensätzen in teilweiser Vereinzelung der Bestandteile perspektivisch wiedergegeben, und zwar in
- Fig. 1 mit einem Arbeitswalzensatz für eine Quarto-Ausführung und in
- Fig. 2 mit einem Walzensatz für eine Vielrollen-Ausführung.
- Fig. 1 with a work roll set for a quarto version and in
- Fig. 2 with a roller set for a multi-role version.
Die in der durch einen Pfeil dargestellten Walzrichtung zurückliegende Ständerwange 1 des in Walzrichtung rechtsseitigen Walzenständers und die entsprechende Ständerwange 2 des linksseitigen Walzenständers sind auf der Innenseite der Ständerfenster durch einen rückseitigen Stützbalken 3 miteinander verbunden. Ein vorderer Stützbalken 4 verbindet die nicht dargestellten Ständerwangen auf der gegenüberliegenden Seite der Ständerfenster. Die Stützbalken 3 und 4 sind mit Fahmuten 5 und 6 zur Aufnahme der Füße 7 der oberen Einbaustücke 8 und der Füße 9 der unteren Einbaustücke 10 versehen, in denen gemäß Fig. 1 eine obere Arbeitswalze 11 und eine untere Arbeitswalze 12 einer Quarto-Walzanordnung gelagert sind. Die Stützbalken 3 und 4 haben Ausnehmungen 13 und 14 für den Durchtritt des Walzguts.The stand cheek 1 of the roll stand on the right-hand side in the rolling direction and represented by an arrow and the corresponding stand cheek 2 of the left-hand roll stand are connected to one another on the inside of the stand window by a
Gemäß Fig. 2 dienen die in der äußeren Kontur entsprechend gestalteten Einbaustücke 15 und 16 der Lagerung von Walzen einer Vielrollenwalzanordnung, und zwar der oberen und der unteren Arbeitswalzen 17 und 18 sowie der oberen und der unteren Zwischenwalzen 19 und 20. Die seitlichen Zwischenwalzen 21 sowie die Stützrollen 22 sind in vier Keilblöcken 23 gelagert, von denen nur der obere vordere geschnitten und der untere vordere in Ansicht wiedergegeben sind. Die Keilblöcke sind über Lenkachsen 24 schwenkbar. Sie liegen über Paßleisten 25 an Paßstücken 26 und 27 bzw. am Stützbalken 3 an. Ihre Anstellung erfolgt durch Anstellzylinder 28 im Stützbalken 4. Die Paßstücke 26 und 27 sind in den Fahmuten 5 und 6 verschieblich und werden mit den Einbaustücken 15 und 16 der Vielrollenanordnung aus dem Walzgerüst herausgezogen. Vor den oberen Anstellzylindern 28 liegt ein entsprechendes nicht dargestelltes Paßstück, das jedoch im Stützbalken verbleibt. Zum unbehinderten Anheben der unteren Einbaustücke 10 und 16 in die Betriebslage sind in den Stützbalken 3 und 4 Rücksprünge 29 vorgesehen. Außerdem sind in den Stützbalken 3 und 4 an den oberen Seitenflügeln der oberen Einbaustücke 8 und 15 angreifende Biegezylinder 31 für die Walzenbiegung sowie Hubzylinder 30 für das Ausbalancieren der nicht dargestellten Stützwalzen angeordnet.2 are used in the outer contour correspondingly designed
Claims (1)
- A rolling mill stand with a roller-changing device, in which mounting elements (8) for upper rollers (11) and mounting elements (10) for lower rollers (12), which elements can be raised and lowered in stand apertures, upon lowering can be placed one after the other, positively locked against relative movement in the direction of the roller axes, onto supporting carriers (3, 4) passing through the stand apertures by means of feet (7, 9) and together with the rollers (11, 12) can be moved out of the rolling mill- stand in the axial direction, characterised in that - for the selective receiving of four-high series of rollers and series of cluster rollers - the supporting carriers are constructed in the form of supporting bars (3, 4) running through from one stand aperture to the other with continuous travel grooves (5, 6) for the feet (7, 9) of the mounting elements (8, 10; 15, 16) and also with recesses (13, 14) for the unhindered passage of rolling stock, and that adjustment cylinders (28), acting counter to the direction of rolling, for the wedge blocks (23) serving for the positioning of the lateral intermediate rollers (21) of series of cluster rollers are located in the front supporting bar (4) in the direction of rolling above and below the recess (14), with the adjustment cylinders (28) for the lower front wedge block (23) being on the level of the relevant travel groove (6), and, for bridging the gap between the adjustment cylinders (28) and the wedge block (23), in the travel groove (6) between the mounting elements (15, 16) there is located a fitting piece (27) which is movable therewith and a corresponding fitting piece (26) is located in the other travel groove (5).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP86102836A EP0235332B1 (en) | 1986-03-04 | 1986-03-04 | Rolling mill stand |
AT86102836T ATE57114T1 (en) | 1986-03-04 | 1986-03-04 | ROLLER ROLLER. |
DE8686102836T DE3674781D1 (en) | 1986-03-04 | 1986-03-04 | ROLLING MILLS. |
CN87100390.2A CN1010561B (en) | 1986-03-04 | 1987-01-23 | Rolling mill stand |
JP62043203A JPS62207507A (en) | 1986-03-04 | 1987-02-27 | Roll stand |
US07/020,379 US4763505A (en) | 1986-03-04 | 1987-03-02 | Rolling mill stand with roll replaceability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP86102836A EP0235332B1 (en) | 1986-03-04 | 1986-03-04 | Rolling mill stand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0235332A1 EP0235332A1 (en) | 1987-09-09 |
EP0235332B1 true EP0235332B1 (en) | 1990-10-03 |
Family
ID=8194938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86102836A Expired - Lifetime EP0235332B1 (en) | 1986-03-04 | 1986-03-04 | Rolling mill stand |
Country Status (6)
Country | Link |
---|---|
US (1) | US4763505A (en) |
EP (1) | EP0235332B1 (en) |
JP (1) | JPS62207507A (en) |
CN (1) | CN1010561B (en) |
AT (1) | ATE57114T1 (en) |
DE (1) | DE3674781D1 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3707560A1 (en) * | 1987-03-10 | 1988-09-22 | Schloemann Siemag Ag | ROLLING MILLS |
US4982590A (en) * | 1987-07-20 | 1991-01-08 | Keiichiro Yoshida | Roll-forming apparatus for wire stock |
US4993251A (en) * | 1989-07-07 | 1991-02-19 | Sandvik Special Metals Corporation | Rollstand having easily replaceable roll dies |
DE4337935A1 (en) * | 1993-11-06 | 1995-05-11 | Schloemann Siemag Ag | Horizontal-vertical roll stand |
DE4340313A1 (en) * | 1993-11-26 | 1995-06-01 | Schloemann Siemag Ag | Rolling stand |
US6041636A (en) * | 1998-02-20 | 2000-03-28 | T. Sendzimir, Inc. | Side supported 6-high rolling mill |
GB9915870D0 (en) * | 1999-07-08 | 1999-09-08 | Meltog Ltd | Mandrel and tooling replacement and apparatus therefor |
DE10046426A1 (en) * | 2000-09-20 | 2002-03-28 | Sms Demag Ag | Four high rolling stand, used in rolling mill for rolling hot and cold strips, comprises two working rollers and supporting rollers driven by drive spindles with one supporting roller detachably connected to motor |
US6408667B1 (en) | 2000-10-26 | 2002-06-25 | Bethlehem Steel Corporation | Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom |
FR2846579B1 (en) * | 2002-11-05 | 2006-05-05 | Vai Clecim | METHOD FOR EXTENDING THE RANGE OF PRODUCTION OF A PLANT ROLLING PLANT FOR METAL PRODUCTS AND INSTALLATION FOR CARRYING OUT THE METHOD |
FR2851942B1 (en) * | 2003-03-05 | 2006-04-28 | METHOD FOR CHANGING THE CONFIGURATION OF A ROLLING MILL AND IMPROVED ROLLING MILL FOR IMPLEMENTING THE METHOD | |
TW200846099A (en) * | 2007-05-22 | 2008-12-01 | Te-Chang Tsai | Sheet metal machining apparatus |
JP5264140B2 (en) * | 2007-10-16 | 2013-08-14 | Ihiメタルテック株式会社 | Magnesium alloy hot rolling equipment |
CN101260905B (en) * | 2008-04-16 | 2010-06-09 | 高国武 | Slide guide pair assembled by rotating railroad shoe |
CN101676041B (en) * | 2008-09-16 | 2012-11-21 | 王宇 | 20-roll rolling mill comprising upper and lower splitting integrated roll box and method for replacing rolls thereof |
RU2501615C1 (en) | 2009-12-28 | 2013-12-20 | Наката Мэньюфэкчеринг Ко., Лтд. | Unit for shaping |
FR3008633B1 (en) * | 2013-07-22 | 2015-08-07 | Fives Dms | ROLLER EQUIPPED WITH AT LEAST ONE COOLING NOZZLE |
CN103506388A (en) * | 2013-09-09 | 2014-01-15 | 芜湖汉光立体停车设备有限公司 | Pneumatic control type roller installation seat |
FR3010332B1 (en) * | 2013-09-12 | 2015-10-02 | Fives Dms | CASSETTE FOR ROLLING MILL AND ROLLING MACHINE EQUIPPED WITH SUCH A CASSETTE |
CN104550243B (en) * | 2013-10-16 | 2016-08-10 | 中国二十冶集团有限公司 | Large-sized rolling mills frame bracket rotary hoisting method |
DE102015122701A1 (en) | 2015-12-23 | 2017-06-29 | Sandvik Materials Technology Deutschland Gmbh | Cold pilger rolling mill |
FR3050128B1 (en) * | 2016-04-18 | 2018-09-07 | Fives Dms | METHOD FOR CHANGING CYLINDERS OF A ROLLING MILL |
FR3056419B1 (en) * | 2016-09-27 | 2018-10-12 | Fives Dms | DEVICE FOR SPINNING A METAL STRIP |
CN111250542A (en) * | 2020-03-17 | 2020-06-09 | 浙江传播者金属装饰材料有限公司 | Rolling mill roller system compensation device with supporting structure |
CN111618105B (en) * | 2020-06-13 | 2023-08-29 | 大连华锐重工集团股份有限公司 | Roller way replacing device for deformed steel rolling mill |
CN113953328A (en) * | 2021-09-03 | 2022-01-21 | 河钢股份有限公司承德分公司 | Automatic centering device and method for rolling mill roller |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1148895A (en) * | 1965-12-06 | 1969-04-16 | United Eng Foundry Co | Improvement in rolling mills |
GB1248927A (en) * | 1968-08-09 | 1971-10-06 | Davy & United Eng Co Ltd | Rolling mills |
GB1355662A (en) * | 1970-06-15 | 1974-06-05 | Davy Loewy Ltd | Rolling mills |
AT317817B (en) * | 1972-03-03 | 1974-09-10 | Thaelmann Schwermaschbau Veb | Multi-roll stand |
DE2254735A1 (en) * | 1972-11-09 | 1974-05-22 | Krupp Gmbh | QUARTO ROLLING FRAME |
US3864954A (en) * | 1973-12-04 | 1975-02-11 | Blaw Knox Foundry Mill Machine | Roll changers |
US3877276A (en) * | 1973-12-28 | 1975-04-15 | Mesta Machine Co | Mill roll changing system including a cantilevered roll assembly |
IN150121B (en) * | 1978-02-23 | 1982-07-24 | Sendzimir Inc T | |
US4270377A (en) * | 1978-05-19 | 1981-06-02 | T. Sendzimir, Inc. | Eighteen high rolling mill |
US4531394A (en) * | 1982-03-26 | 1985-07-30 | T. Sendzimir, Inc. | Six-high rolling mills |
-
1986
- 1986-03-04 DE DE8686102836T patent/DE3674781D1/en not_active Expired - Fee Related
- 1986-03-04 AT AT86102836T patent/ATE57114T1/en not_active IP Right Cessation
- 1986-03-04 EP EP86102836A patent/EP0235332B1/en not_active Expired - Lifetime
-
1987
- 1987-01-23 CN CN87100390.2A patent/CN1010561B/en not_active Expired
- 1987-02-27 JP JP62043203A patent/JPS62207507A/en active Pending
- 1987-03-02 US US07/020,379 patent/US4763505A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE57114T1 (en) | 1990-10-15 |
EP0235332A1 (en) | 1987-09-09 |
JPS62207507A (en) | 1987-09-11 |
DE3674781D1 (en) | 1990-11-08 |
US4763505A (en) | 1988-08-16 |
CN87100390A (en) | 1987-09-23 |
CN1010561B (en) | 1990-11-28 |
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