WO1998032549A1 - Improved rolling mill plant - Google Patents

Improved rolling mill plant Download PDF

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Publication number
WO1998032549A1
WO1998032549A1 PCT/IT1998/000006 IT9800006W WO9832549A1 WO 1998032549 A1 WO1998032549 A1 WO 1998032549A1 IT 9800006 W IT9800006 W IT 9800006W WO 9832549 A1 WO9832549 A1 WO 9832549A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
rolls
cylinders
electric
previous
Prior art date
Application number
PCT/IT1998/000006
Other languages
French (fr)
Inventor
Ferruccio Sclippa
Original Assignee
S.I.M.A.C. S.P.A.
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 S.I.M.A.C. S.P.A. filed Critical S.I.M.A.C. S.P.A.
Priority to AU55744/98A priority Critical patent/AU5574498A/en
Publication of WO1998032549A1 publication Critical patent/WO1998032549A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B21B35/04—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills each stand having its own motor or motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/09—L-sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • 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
    • B21B13/005—Cantilevered roll stands
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally

Definitions

  • Purpose of the present invention is that of conceiving a new type of structure of the rolling mill plants in which higher advancing speeds can be reached, for reaching and exceeding also 150 m/sec.
  • a rolling system of the type involving at least one couple of opposite rolling cylinders or rolls, characterized in that it is made up as follows: - each rolling cylinder or roll is directly controlled at the axis of at least one respective electric motor which is in electric axis with the respective motor which controls the opposite rolling cylinder or roll; - means for controlling, changing and/or co-ordinating the speeds of all the electric motors operating said rolling cylinders are provided so that each couple has the same rotation speed.
  • Advantages of the invention The electric axis thus allows to eliminate the constraints of the mechanical drive with all the subsequent advantages.
  • Advantageous is the use of electronic control and programming systems managed by a computer in order to control and program the speed of the respective couples of cylinders or rolls in order to overcome the problem of whether or not changing the angular speed of one couple of rolls or cylinders respect to the other, because it is obvious that the best performance is obtained when the different cylinders or rolls are endowed with the peripheral exact rolling speed according to the rolled section advancing speed in that precise rolling point. For such reason for example the couples of cylinders or rolls would need different angular speeds.
  • a typical case is the stretching of the rolled section during the rolling process, and it is known that the stretching involves a higher advancing speed, so that the downstream cylinders or rolls should rotate at an angular speed higher than the upstream ones, obviously proportioned to the reduction of the rolled section (thus an higher stretching of the rolled section). 1
  • the advantage is not only that of simplifying but also of reaching
  • the electric motors may be D.C. or A.C. ones with a
  • Figure 1 is a view of a rolling stand according to this invention.
  • FIG. 2 shows the arrangement of the couple of embossed rolling rolls ( 1 , 2) with a single system for adjusting their position (4), single supporting block (3), articulated shafts ( 1 1 , 12) and respective motors in electric axis Ml , M2, in this case with extended winding along the axis for the diametrical dimension reduction.
  • Fig. 3 shows another solution as a variation of the previous one in which there are two offset motors Ml, M2.
  • Figure 4 is a solution with adjacent embossed rolling rolls 1 , 2 and stand block (G) only on one side, in which after the respective supports (3) there are two motors for each roll axis (Ml-Ml ; M2-M2) offset and spaced by articulated axes 11 , 12.
  • Figure 5 is a front view of two opposite embossed rolling rolls and each supported by a rolling unit (G) where an adjusting system (4) is provided for the rolling roll 1 , 2 position being the rolling rolls 1 , 2 supported by embossing 3 and in which each roll 1 , 2 is operated by articulated axis (1 1-12) to a respective single electric motor (Ml , M l ).
  • Figure 6 shows a further solution as variation to the previous ones in which the motors Ml and M2 are opened wide by tilting during the opening wide of the respective connection axes 11 , 12.
  • Fig. 7 shows a side view of a rolling block involving on a support (S) a plurality of rolling stands (G) with embossed rolls (1 , 2) of the type according to previous figures, placed tilted at 45° and in which each couple of rolling rolls is orthogonal to the other.
  • Figure 8 is a front view of the rolling block according to previous fi gure . In the specific case of these latter two figures, there are five rolling blocks on one side and five rolling blocks on the other for a total of 20 rolling rolls, each operated by respective electric motor in electric axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Metal Rolling (AREA)

Abstract

Rolling system, of the type involving at least one couple of opposite rolling cylinders or rolls (1, 2), characterized in that it is made up as follows: each rolling cylinder or roll (1, 2) is directly controlled at the axis of at least one respective motor (M1, M2... ); means for controlling, changing and/or co-ordinating the speeds of all the motors (M1, M2... ) operating said rolling cylinders are provided so that each couple has the same rotation speed.

Description

DESCRIPTION IMPROVED ROLLING MILL PLANT Technical Field This invention as for object an improved rolling mill plant particularly for working at high speed for production purposes, by high speed hot-rolling of small sections and bars. Background Art In prior art this type of rolling mill plants which generally involve one or more couples of embossed rolls, or cylinders supported on both sides, shaped according to the shape to be given to the rolled section is known. The rolling cylinders or rolls of these rolling mill plants are supported by a so called rolling stand and are generally grouped into blocks which involve a plurality of couples of rolling cylinders or rolls, for example one orthogonal to the other so that, by a single passage it is possible to start with the raw materiale or stock and arrive to the finished section or bar or wire. Terminological definitions For the purposes of this invention, the following expressions will be used: - rolling cylinders or rolls; - couple of rolling cylinders or rolls; - rolling stand or unit, involving one or more couples of rolling cylinders or rolls; - rolling block involving a plurality of rolling cylinders or rolls on the same plane or otherwise oriented or a plurality of rolling stands. Considering the need of limiting the processing costs, there is a tendency to increase the rolling speed. The existing structures are conceived, for many different reasons, so that a rolling block involves a single large sized electric motor which operates the different cylinders, and also the respective rolling stands by drive-shafts and gear systems. These structures are still in use because of historical and ease reasons, but they are mainly used for making the rolling cylinders rotation speed absolutely even. These structures are anyway complex and do not allow to exceed determined rolling speeds. Purpose of the present invention Purpose of the present invention is that of conceiving a new type of structure of the rolling mill plants in which higher advancing speeds can be reached, for reaching and exceeding also 150 m/sec. Disclosure of the innovative essence This and other purposes are reached as claimed by a rolling system, of the type involving at least one couple of opposite rolling cylinders or rolls, characterized in that it is made up as follows: - each rolling cylinder or roll is directly controlled at the axis of at least one respective electric motor which is in electric axis with the respective motor which controls the opposite rolling cylinder or roll; - means for controlling, changing and/or co-ordinating the speeds of all the electric motors operating said rolling cylinders are provided so that each couple has the same rotation speed. Advantages of the invention The electric axis thus allows to eliminate the constraints of the mechanical drive with all the subsequent advantages. Thus there is also the great advantage of reaching very high speeds because there are no more limits forced by the gear-drive systems previously absolutely necessary when a single motor controlled at least two cylinders. Other advantages are obviously the following ones: - elimination of gear-motors with pinion stands and relative lubrication plants; - dimensions and spaces reduction - maintenance costs reduction - investments reduction. For synchronizing the two cylinders speed as said the known arts for operating the motors in electric axis will be used. Advantageous, according to the invention, is the use of electronic control and programming systems managed by a computer in order to control and program the speed of the respective couples of cylinders or rolls in order to overcome the problem of whether or not changing the angular speed of one couple of rolls or cylinders respect to the other, because it is obvious that the best performance is obtained when the different cylinders or rolls are endowed with the peripheral exact rolling speed according to the rolled section advancing speed in that precise rolling point. For such reason for example the couples of cylinders or rolls would need different angular speeds. A typical case is the stretching of the rolled section during the rolling process, and it is known that the stretching involves a higher advancing speed, so that the downstream cylinders or rolls should rotate at an angular speed higher than the upstream ones, obviously proportioned to the reduction of the rolled section (thus an higher stretching of the rolled section). 1 The advantage is not only that of simplifying but also of reaching
2 high rolling speeds: 150m/sec and more), in prior art not allowed
3 due to the fact that the motion is mechanically transmitted (through
4 gearings, shafts, bearings, etc.), both to the couple of cylinders of
5 each single step (couple/stand) and between one step and the other
6 (between one stand and the other).
7 In prior art these blocks are intended with a plurality of stands (e.g.
8 from 2 to 10 stands) controlled by one or two gear shafts which
9 anyway are connected to a single electric motor (or more
I 0 mechanically coupled motors).
I I In our case, for one block (example with 10 steps) we will therefore 1 2 have 20 electric motors, while presently in the traditional blocks we 1 3 have only one of them (or more motors placed one after the other 1 4 mechanically connected by joints).
1 5 Advantageously the electric motors may be D.C. or A.C. ones with a
1 6 frequency variation for embodying the condition of electric axis.
1 7 The advantages of the present invention in the case of high speed
1 8 blocks are more considerable than those already mentioned for the
1 9 single stand because the blocks are machines having extremely
2 0 complex and expensive mechanics.
2 1 Description of a preferred embodiment
2 2 These and other advantages will appear from the following
2 3 description of preferential embodiment solutions, with the aid of the
2 4 enclosed drawings, whose details are not to be considered as
2 5 limitative but only given as examples.
2 6 Figure 1 is a view of a rolling stand according to this invention with
2 7 the respective lateral supports, in which each cylinder according to
2 8 this invention, is operated by a respective motor in axis, placed outside the stand. Fig. 2 shows the arrangement of the couple of embossed rolling rolls ( 1 , 2) with a single system for adjusting their position (4), single supporting block (3), articulated shafts ( 1 1 , 12) and respective motors in electric axis Ml , M2, in this case with extended winding along the axis for the diametrical dimension reduction. Fig. 3 shows another solution as a variation of the previous one in which there are two offset motors Ml, M2. Figure 4 is a solution with adjacent embossed rolling rolls 1 , 2 and stand block (G) only on one side, in which after the respective supports (3) there are two motors for each roll axis (Ml-Ml ; M2-M2) offset and spaced by articulated axes 11 , 12. Figure 5 is a front view of two opposite embossed rolling rolls and each supported by a rolling unit (G) where an adjusting system (4) is provided for the rolling roll 1 , 2 position being the rolling rolls 1 , 2 supported by embossing 3 and in which each roll 1 , 2 is operated by articulated axis (1 1-12) to a respective single electric motor (Ml , M l ). Figure 6 shows a further solution as variation to the previous ones in which the motors Ml and M2 are opened wide by tilting during the opening wide of the respective connection axes 11 , 12. Fig. 7 shows a side view of a rolling block involving on a support (S) a plurality of rolling stands (G) with embossed rolls (1 , 2) of the type according to previous figures, placed tilted at 45° and in which each couple of rolling rolls is orthogonal to the other. Figure 8 is a front view of the rolling block according to previous fi gure . In the specific case of these latter two figures, there are five rolling blocks on one side and five rolling blocks on the other for a total of 20 rolling rolls, each operated by respective electric motor in electric axis. Obviously, thanks to the present electronic and programming art it is possible to provide that some couples of rolling rolls rotate at an angular speed different from the others according to the objective optimizations of the rolling frictions, which by the rigid mechanical gearing art would not otherwise be possible. If to this we add the advantage of the great mechanical and structural simplification and the possibility of reaching very high rolling speeds, it is well understood the important progress reached by this solution. Up to now it has not been utilised perhaps for its great simplicity and probably for preserving technological ties with the mechanisms of old structural solutions, which did not allow those skilled in the art to see a great and innovative solution which was just within reach. The solutions of figures 2,3,4,5,6 are shown according to their impo rtance . The solutions of figures 3,4,5,6 are variations of the preferential solution 2.

Claims

Claims 1. Rolling system, of the type involving at least one couple of opposite rolling cylinders or rolls (1 ,2), characterized in that: - each rolling cylinder or roll (1,2) is directly controlled at its axis with at least one respective motor (Ml, M2,...); - means for controlling, changing and/or co-ordinating the speeds of all motors (Ml, M2,...) which operate said rolling cylinders so that the cylinders or rolls ( 1 ,2) of each couple have the same rotation speed, are provided. 2. Rolling system, of the type involving at least one couple of opposite rolling cylinders or rolls ( 1 ,2 according to claim 1 , characterized in that: - each said motor is an electric motor; - each said electric motor is in electric axis at least with that of the opposite cylinder or roll. 3. Rolling system, according to previous claims, characterized in that said electric motors are of the alternate current type operated by frequency variation. 4. Rolling system, according to previous claims, characterized in that said electric motors are of the direct current type. 5. Rolling system, according to previous claims, characterized in th at - each said motor is an electric motor; - each said electric motor is in electric axis with all the other electric motors. 6. Rolling system, according to previous claims, characterized in that means for the electric and electronic controlling and programming by computer, able to change and/or adjust the 1 respective speed of one couple of rolling rolls or cylinders respect to
2 another, is provided.
3 7. Rolling cylinders or rolls block according to previous claims,
4 characterized in that all rolling cylinders or rolls are operated by
5 respective electric motor in electric axis with the others.
6 8. Rolling mill plant utilising the system according to previous
7 claims, characterized in that at least one couple of rolling cylinders
8 or rolls (1,2) is made up so that each of said rolling cylinders or rolls
9 (1,2) is directly controlled by a respective electric motor (Ml , M2) in
I 0 which the first one is in electric axis with the second one.
I I 9. Rolling mill plant utilising the system according to previous 1 2 claims, characterized in that all the rolling cylinders or rolls (1 ,2) 1 3 are directly controlled by a respective electric motor (M l , M2) in 1 4 which each one is in electric axis with the others.
PCT/IT1998/000006 1997-01-24 1998-01-20 Improved rolling mill plant WO1998032549A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU55744/98A AU5574498A (en) 1997-01-24 1998-01-20 Improved rolling mill plant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD970012 IT1290713B1 (en) 1997-01-24 1997-01-24 PERFECTED ROLLING MILL
ITUD97A000012 1997-01-24

Publications (1)

Publication Number Publication Date
WO1998032549A1 true WO1998032549A1 (en) 1998-07-30

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Country Status (3)

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AU (1) AU5574498A (en)
IT (1) IT1290713B1 (en)
WO (1) WO1998032549A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0875302A2 (en) * 1997-04-24 1998-11-04 Sms Schloemann-Siemag Aktiengesellschaft Finishing block system for wire rolling mills
ITMI20110937A1 (en) * 2011-05-25 2012-11-26 Siemens Vai Metals Tech Srl CAGE AND LAMINATION PLANT
ITMI20110939A1 (en) * 2011-05-25 2012-11-26 Siemens Vai Metals Tech Srl LAMINATION PLANT INCLUDING A PLURALITY OF CAGES
ITUD20120178A1 (en) * 2012-10-24 2014-04-25 Pmp Ind S P A "STATION AND LAMINATION PLANT"
WO2014146792A1 (en) * 2013-03-22 2014-09-25 Pmp Industries S.P.A. Adjustment system
WO2015085340A3 (en) * 2013-12-10 2015-08-06 Asmag-Holding Gmbh Drive system and profiling installation having said drive system
CN104889171A (en) * 2015-06-03 2015-09-09 辽宁科技大学 Support roll bilateral direct transmission gear of four-roll plate and strip rolling mill

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE179121C (en) *
US1590854A (en) * 1922-09-20 1926-06-29 English Electric Co Ltd Construction of and driving arrangement for rolling mills
FR740057A (en) * 1931-10-29 1933-01-20 Schloemann Ag Cage for continuous rolling of wires and small irons
DE928703C (en) * 1951-12-20 1955-06-10 Sack Gmbh Maschf Electric single drive for a pair of rollers, especially for the pairs of rollers of continuous lines for rolling out wire and similar cross-sections
GB1235906A (en) * 1968-11-29 1971-06-16 Windshields Of Worcester Ltd Section forming machine
DE2437684A1 (en) * 1974-08-05 1976-02-26 Schloemann Siemag Ag Hot-rolling mill train for the high speed mfr. - of either wire, or ribbed steel for reinforcing concrete
EP0114793A2 (en) * 1983-01-25 1984-08-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. High speed rolling block
DE4011681A1 (en) * 1990-04-11 1991-10-17 Bueltmann Monika Rolling stand with sliding roll shafts - for tube forming using hydraulically tensioned roll shafts axially withdrawn by integral cylinders for rapid roll changing
DE4024374A1 (en) * 1990-08-01 1992-02-06 Mat Mueller Anlagen Technik Gm Cold working plant for forming profiles from metal strips - uses several pairs of shafts for reception of profile rollers, each shaft driven by its own 3-phase regulated drive motor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE179121C (en) *
US1590854A (en) * 1922-09-20 1926-06-29 English Electric Co Ltd Construction of and driving arrangement for rolling mills
FR740057A (en) * 1931-10-29 1933-01-20 Schloemann Ag Cage for continuous rolling of wires and small irons
DE928703C (en) * 1951-12-20 1955-06-10 Sack Gmbh Maschf Electric single drive for a pair of rollers, especially for the pairs of rollers of continuous lines for rolling out wire and similar cross-sections
GB1235906A (en) * 1968-11-29 1971-06-16 Windshields Of Worcester Ltd Section forming machine
DE2437684A1 (en) * 1974-08-05 1976-02-26 Schloemann Siemag Ag Hot-rolling mill train for the high speed mfr. - of either wire, or ribbed steel for reinforcing concrete
EP0114793A2 (en) * 1983-01-25 1984-08-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. High speed rolling block
DE4011681A1 (en) * 1990-04-11 1991-10-17 Bueltmann Monika Rolling stand with sliding roll shafts - for tube forming using hydraulically tensioned roll shafts axially withdrawn by integral cylinders for rapid roll changing
DE4024374A1 (en) * 1990-08-01 1992-02-06 Mat Mueller Anlagen Technik Gm Cold working plant for forming profiles from metal strips - uses several pairs of shafts for reception of profile rollers, each shaft driven by its own 3-phase regulated drive motor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NOGUCHI Y ET AL: "MULTIVARIABLE CONTROL OF INTERSTAND TENSION AND EXIT HEIGHT OF THE MATERIAL FOR BAR AND WIRE ROD ROLLING", ROBOTICS, VISION AND SENSORS, SIGNAL PROCESSING AND CONTROL, MAUI, NOV. 15 - 19, 1993, vol. 3, 15 November 1993 (1993-11-15), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 2299 - 2304, XP000437592 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0875302A2 (en) * 1997-04-24 1998-11-04 Sms Schloemann-Siemag Aktiengesellschaft Finishing block system for wire rolling mills
EP0875302A3 (en) * 1997-04-24 1999-06-16 Sms Schloemann-Siemag Aktiengesellschaft Finishing block system for wire rolling mills
ITMI20110937A1 (en) * 2011-05-25 2012-11-26 Siemens Vai Metals Tech Srl CAGE AND LAMINATION PLANT
ITMI20110939A1 (en) * 2011-05-25 2012-11-26 Siemens Vai Metals Tech Srl LAMINATION PLANT INCLUDING A PLURALITY OF CAGES
WO2012159932A1 (en) * 2011-05-25 2012-11-29 Siemens Vai Metals Technologies S.R.L. Rolling mill comprising a plurality of stands
ITUD20120178A1 (en) * 2012-10-24 2014-04-25 Pmp Ind S P A "STATION AND LAMINATION PLANT"
WO2014063803A1 (en) * 2012-10-24 2014-05-01 Pmp Industries S.P.A. Rolling station and rolling mill plant
JP2015532214A (en) * 2012-10-24 2015-11-09 ピーエムピー インダストリーズ ソシエタ ペル アチオニ Roll station and roll mill plant
RU2662754C2 (en) * 2012-10-24 2018-07-30 Пмп Индастриз С.П.А. Rolling station and rolling equipment
WO2014146792A1 (en) * 2013-03-22 2014-09-25 Pmp Industries S.P.A. Adjustment system
WO2015085340A3 (en) * 2013-12-10 2015-08-06 Asmag-Holding Gmbh Drive system and profiling installation having said drive system
CN104889171A (en) * 2015-06-03 2015-09-09 辽宁科技大学 Support roll bilateral direct transmission gear of four-roll plate and strip rolling mill

Also Published As

Publication number Publication date
AU5574498A (en) 1998-08-18
IT1290713B1 (en) 1998-12-10
ITUD970012A1 (en) 1998-07-24

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