EP0884118A1 - Method and apparatus for coupling the casting and rolling of metals - Google Patents
Method and apparatus for coupling the casting and rolling of metals Download PDFInfo
- Publication number
- EP0884118A1 EP0884118A1 EP98302915A EP98302915A EP0884118A1 EP 0884118 A1 EP0884118 A1 EP 0884118A1 EP 98302915 A EP98302915 A EP 98302915A EP 98302915 A EP98302915 A EP 98302915A EP 0884118 A1 EP0884118 A1 EP 0884118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- line
- casting
- moveable
- slab
- rolling
- 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.)
- Withdrawn
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
-
- 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
- B21B1/46—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 metal immediately subsequent to continuous casting
- B21B1/466—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 metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/12—Arrangement or installation of roller tables in relation to a roll stand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
Definitions
- the invention relates to an apparatus for coupling the casting and rolling of metals.
- the invention relates to a combined apparatus and method for the continuous casting and then rolling of metals.
- FIG. 1 shows a conventional casting and rolling apparatus comprising two casting lines 2, 3 feeding a single rolling line 4.
- FIG 1 the casting process in the first casting line 2 is about half way through and the casting of the second casting line 3 is about to begin.
- a previously cast slab is located on the transfer unit 6 ready to enter the single rolling line 4. The next stage in the process is shown in figure 2.
- FIG. 3 shows the third stage of this conventional process in which the casting of the slab on the first casting line 2 is complete and the rolling of the previously cast slab is complete. At this point the casting of the second casting line is continuing and approaching the halfway stage.
- the transfer unit 6 is then moved to a position in line with the first casting line 2. As shown in figure 4 the slab being cast in casting line 2 is then cut at the required length and the slab proceeds onto the transfer unit 6. The length of the cast slab is determined by the length of the transfer unit 6 as well as the casting lines 2, 3.
- the transfer unit is translated sideways (downwardly in the drawing) to line up with the rolling line 4 so that the newly cast slab can proceed to the rolling line 4 as shown in figure 6.
- the second casting line 3 will have been completed and a further slab will be available.
- the transfer unit 6 will then move sideways to a position in line with the second casting line to receive this slab and so the procedure continues.
- each cast slab is limited by the length of the transfer unit 6 and the casting line is of the same corresponding length. If slabs of greater length are required then the apparatus has to be made longer with correspondingly long casting lines and transfer units. This makes the overall length of the complete line very long and this is a major prohibiting factor. Sites for such long lengths of mills are very hard to find and expensive and existing factory sites where most new equipment is desired to be located are not long enough to accommodate such long lengths of equipment. Further more the long lengths of the casting and rolling apparatus required for long slabs are expensive in terms of the physical cost of the apparatus itself as well as the factory space it takes up.
- an apparatus for the combined casting and rolling of metals comprising at least two casting lines and a rolling line each casting line also comprising a corresponding receiving platform onto which the slab is cast, characterised in that each receiving platform is comprised of at least two separate sections each of which are shorter than the length of the cast slab and which are independently moveable.
- the sections are preferably moveable between a first position in which they are in line with the corresponding caster and a second position in which they are in line with the rolling line.
- the receiving platforms are preferably in the form of tunnel furnaces in this embodiment in which the temperature of the cast slabs can be controlled and maintained by heat retaining means and with heat adding means. They will however be referred to merely as receiving platform moveable sections henceforth in this description.
- a separate section of the receiving platform remains fixed to each ofthe casting lines 12, 13.
- the receiving platform comprises 2 moveable sections.
- the receiving platform comprises three, four, five, six , seven or more moveable sections.
- FIG. 7 to 14 the embodiment of the invention is shown in which there is provided an apparatus 1 for the combined casting and rolling of metals comprising at least two casting lines 12, 13 and a rolling line 14, each casting line 12, 13 also comprising corresponding receiving platforms 15, 16 onto which the slab is cast.
- Each receiving platform 15, 16 is comprised of eight separate sections 21, 22, 23, 24, 25, 26, 27, 28 the first section 21 of which is fixed to the corresponding casting line 12, 13 and the remaining seven of which are independently moveable.
- the moveable sections 22 -28 are moveable between a first position in which they are in line with the corresponding casting line 12, 13 a second position in which they are in line with the rolling line 14.
- Each movable section is preferably in the form of tunnel furnaces in this embodiment in which the temperature of the cast slabs can be controlled and maintained by heat retaining means and with heat adding means. They will however be referred to merely as moveable sections henceforth in this description.
- Each movable section 22-28 may contain its own heat adding means but preferably, whilst each movable section will contain its own heat retaining means, only some of the movable sections will need to be provided with heat adding means.
- the heat adding means could be any suitable type such as by gas or electric element.
- Each moveable section 22 - 28 comprises its own transverse rail (not shown) arranged between the first and second positions to precisely guide the translation movement of each moveable section 22 -28. Additionally each corresponding rail is provided with stops which stop the corresponding moveable section in precisely the desired position in-line with the corresponding casting line and the rolling line 14 respectively.
- each of the sections comprises driven rolls for longitudinal movement of the slab from the receiving platforms 15, 16 to the rolling line 14.
- FIG 7 the apparatus and method of this embodiment of the invention is shown in which a first slab has already been cast and rests on the moveable sections of the second receiving platform 16 and this is ready to be fed into the rolling line 14.
- the first casting line 12 is part, about halfway, through the casting of a second slab on to its receiving platform 15 which is in line with the first casting line 12.
- the casting of a third slab on the second casting line 13 has just started on to the first fixed section 21 of its corresponding the receiving platform 16.
- the first slab is being fed into the rolling line 14.
- this moveable section 22 is moved sideways (downwards in the figure) to its first position in-line with the second casting line to form the receiving platform for the casting of the third slab.
- this section is moved sideways (downwards in the figure) to form the receiving platform for the casting of the third slab.
- Figure 10 shows this step repeated for the third and subsequent moveable sections as the first slab enters the rolling line 14.
- the rolling line 14 operates at a faster speed that the casting line 12, 13 the subsequent sections build up to form the receiving platform ahead of the casting of the third slab.
- Figure 11 shows the last moveable section 28 being moved sideways to complete the receiving platform for the third slab.
- the casting of the second slab has been completed and as shown in figure 12 the desired length is cut and the slab is transferred to the last seven sections of the receiving platform by the drive rolls on the receiving platform sections 22 - 28.
- the second slab is transferred to the rolling line 14 by the sideways movement of all of the moveable sections 22 - 28 of the first receiving platform and the slab can then be fed into the rolling mill.
- the process is thus continued following this pattern on a continuous basis as shown in figure 14 with the first and subsequent moveable sections 22 - 28 of the first receiving platform moving sideways (upwards in the figure) to form the receiving platform for a fourth slab as soon as the second slab leaves the corresponding movable section 22 -28.
- the casting of the third slab is continued.
Abstract
The invention relates to an apparatus for the combined casting and rolling of
metals comprising at least two casting lines 12, 13 and a rolling line 14 each
casting line 12, 13 also comprising a corresponding receiving platform 15,
16 onto which the slab is cast which is comprised of at least two separate
moveable sections 22 - 28 each of which are shorter than the length of the
cast slab and which are independently moveable between a first position in
which they are in line with the corresponding caster 12, 13 and a second
position in which they are in line with the rolling line 14. The receiving
platform 15, 16 also conveniently comprises a separate fixed section which
remains fixed to each of the casting lines 12, 13. The receiving platform
may comprise 2, 3, 4, 5 or a greater number of moveable sections.
Description
The invention relates to an apparatus for coupling the casting and rolling of
metals. In particular the invention relates to a combined apparatus and
method for the continuous casting and then rolling of metals.
Typically in known systems more than one casting line is fed into a single
rolling line because the rate of casting is normally slower than the rate
through a single rolling mill line. Presently a transfer unit is used to transfer
the slab which is produced by the casting line to a position in which it lines
up with the subsequent rolling line. Such a conventional system is shown in
figures 1 to 6 which show a conventional casting and rolling apparatus
comprising two casting lines 2, 3 feeding a single rolling line 4. In figure 1
the casting process in the first casting line 2 is about half way through and
the casting of the second casting line 3 is about to begin. A previously cast
slab is located on the transfer unit 6 ready to enter the single rolling line 4.
The next stage in the process is shown in figure 2. The casting in the first
casting line 2 continues, the casting of the second casting line 3 is
commenced and the previously cast slab enters the rolling line 4 from the
transfer unit 6. Figure 3 shows the third stage of this conventional process
in which the casting of the slab on the first casting line 2 is complete and the
rolling of the previously cast slab is complete. At this point the casting of
the second casting line is continuing and approaching the halfway stage.
The transfer unit 6 is then moved to a position in line with the first casting
line 2. As shown in figure 4 the slab being cast in casting line 2 is then cut
at the required length and the slab proceeds onto the transfer unit 6. The
length of the cast slab is determined by the length of the transfer unit 6 as
well as the casting lines 2, 3. Referring now to figure 5 the transfer unit is
translated sideways (downwardly in the drawing) to line up with the rolling
line 4 so that the newly cast slab can proceed to the rolling line 4 as shown
in figure 6. When the rolling of this slab is complete the second casting
line 3 will have been completed and a further slab will be available. The
transfer unit 6 will then move sideways to a position in line with the second
casting line to receive this slab and so the procedure continues.
With such conventional apparatus the length of each cast slab is limited by
the length of the transfer unit 6 and the casting line is of the same
corresponding length. If slabs of greater length are required then the
apparatus has to be made longer with correspondingly long casting lines and
transfer units. This makes the overall length of the complete line very long
and this is a major prohibiting factor. Sites for such long lengths of mills
are very hard to find and expensive and existing factory sites where most
new equipment is desired to be located are not long enough to accommodate
such long lengths of equipment. Further more the long lengths of the
casting and rolling apparatus required for long slabs are expensive in terms
of the physical cost of the apparatus itself as well as the factory space it
takes up.
It is therefore an objective of the invention to provide a combined casting
and rolling apparatus for metal which is shorter in length than conventional
casting and rolling apparatus.
It is also an objective of the present invention to provide a continuous
casting and rolling apparatus which can produce longer lengths of slabs and
consequently longer runs through the rolling line.
According to the invention there is provided an apparatus for the combined
casting and rolling of metals comprising at least two casting lines and a
rolling line each casting line also comprising a corresponding receiving
platform onto which the slab is cast, characterised in that each receiving
platform is comprised of at least two separate sections each of which are
shorter than the length of the cast slab and which are independently
moveable. The sections are preferably moveable between a first position in
which they are in line with the corresponding caster and a second position
in which they are in line with the rolling line.
The receiving platforms are preferably in the form of tunnel furnaces in this
embodiment in which the temperature of the cast slabs can be controlled and
maintained by heat retaining means and with heat adding means. They will
however be referred to merely as receiving platform moveable sections
henceforth in this description.
Preferably a separate section of the receiving platform remains fixed to each
ofthe casting lines 12, 13.
Preferably the receiving platform comprises 2 moveable sections.
Alternatively the receiving platform comprises three, four, five, six , seven
or more moveable sections.
According to the invention there is also provided a method of casting and
rolling of metal as carried out by the apparatus described above.
An exemplary embodiment of the method and apparatus of the invention
comprising a receiving platform with seven moveable sections will now be
described with the assistance of the following drawings which include
drawings of a prior art apparatus already referred to and in which :
The method and apparatus of the prior art shown in figures 1 to 6 has
already been discussed above. Referring to figures 7 to 14 the embodiment
of the invention is shown in which there is provided an apparatus 1 for the
combined casting and rolling of metals comprising at least two casting lines
12, 13 and a rolling line 14, each casting line 12, 13 also comprising
corresponding receiving platforms 15, 16 onto which the slab is cast. Each
receiving platform 15, 16 is comprised of eight separate sections 21, 22, 23,
24, 25, 26, 27, 28 the first section 21 of which is fixed to the corresponding
casting line 12, 13 and the remaining seven of which are independently
moveable. The moveable sections 22 -28 are moveable between a first
position in which they are in line with the corresponding casting line 12, 13
a second position in which they are in line with the rolling line 14.
Each movable section is preferably in the form of tunnel furnaces in this
embodiment in which the temperature of the cast slabs can be controlled and
maintained by heat retaining means and with heat adding means. They will
however be referred to merely as moveable sections henceforth in this
description.
Each movable section 22-28 may contain its own heat adding means but
preferably, whilst each movable section will contain its own heat retaining
means, only some of the movable sections will need to be provided with
heat adding means. The heat adding means could be any suitable type such
as by gas or electric element.
Each moveable section 22 - 28 comprises its own transverse rail (not
shown) arranged between the first and second positions to precisely guide
the translation movement of each moveable section 22 -28. Additionally
each corresponding rail is provided with stops which stop the corresponding
moveable section in precisely the desired position in-line with the
corresponding casting line and the rolling line 14 respectively.
Also each of the sections comprises driven rolls for longitudinal movement
of the slab from the receiving platforms 15, 16 to the rolling line 14.
Referring to each step in turn it can be seen from figure 7 that the apparatus
and method of this embodiment of the invention is shown in which a first
slab has already been cast and rests on the moveable sections of the second
receiving platform 16 and this is ready to be fed into the rolling line 14.
The first casting line 12 is part, about halfway, through the casting of a
second slab on to its receiving platform 15 which is in line with the first
casting line 12. The casting of a third slab on the second casting line 13 has
just started on to the first fixed section 21 of its corresponding the receiving
platform 16.
Referring now to figure 8 the first slab is being fed into the rolling line 14.
As soon as the end of this slab leaves the first moveable section 22, this
moveable section 22 is moved sideways (downwards in the figure) to its
first position in-line with the second casting line to form the receiving
platform for the casting of the third slab. Referring to figure 9 as the second
slab leaves the next moveable section 23, this section is moved sideways
(downwards in the figure) to form the receiving platform for the casting of
the third slab.
Figure 10 shows this step repeated for the third and subsequent moveable
sections as the first slab enters the rolling line 14. As the rolling line 14
operates at a faster speed that the casting line 12, 13 the subsequent sections
build up to form the receiving platform ahead of the casting of the third
slab.
Figure 11 shows the last moveable section 28 being moved sideways to
complete the receiving platform for the third slab. In the meantime the
casting of the second slab has been completed and as shown in figure 12 the
desired length is cut and the slab is transferred to the last seven sections of
the receiving platform by the drive rolls on the receiving platform sections
22 - 28.
As shown in figure 13 the second slab is transferred to the rolling line 14 by
the sideways movement of all of the moveable sections 22 - 28 of the first
receiving platform and the slab can then be fed into the rolling mill. The
process is thus continued following this pattern on a continuous basis as
shown in figure 14 with the first and subsequent moveable sections 22 - 28
of the first receiving platform moving sideways (upwards in the figure) to
form the receiving platform for a fourth slab as soon as the second slab
leaves the corresponding movable section 22 -28. In the meantime the
casting of the third slab is continued.
It will be appreciated that by means of the invention a considerable
reduction in the overall length of the production line is achieved which has
considerable consequential benefit in terms of the cost of the apparatus itself
and in the cost of the space required. Furthermore longer slabs are able to
be cast using the method and apparatus of the invention from a mill of a
given total size.
It will also be appreciated that the invention is not limited to the example
described above with seven movable sections but any number may be used
within the concept of the invention as defined in the appended claims.
Claims (9)
- An apparatus for the combined casting and rolling of metals comprising at least two casting lines 12, 13 and a rolling line 14 each casting line 12, 13 also comprising a corresponding receiving platform 15, 16 onto which the slab is cast , characterised in that each receiving platform 15, 16 is comprised of at least two separate moveable sections 22 - 28 each of which are shorter than the length of the cast slab and which are independently moveable.
- An apparatus according to claim 1, characterised in that the moveable sections are moveable between a first position in which they are in line with the corresponding caster 12, 13 and a second position in which they are in line with the rolling line 14.
- An apparatus according to claim 1, characterised in that the receiving platform 15, 16 also comprises a separate fixed section which remains fixed to each of the casting lines 12, 13.
- An apparatus according to claim 1, characterised in that the receiving platform comprises 2 moveable sections.
- An apparatus according to claim 1, characterised in that the receiving platform comprises 3 or more moveable sections.
- An apparatus according to claim 1, characterised in that each moveable section 22 -28 comprises its own transverse rail arranged between the first and second positions.
- An apparatus according to claim 6, characterised in that each rail is provided with stops which stop the moveable section 22 -28 in precisely the desired position in-line with the corresponding casting line and the rolling line 14 respectively.
- An apparatus according to claim 1, characterised in that each moveable section comprises driven rolls for longitudinal movement of the slab.
- A method of casting and rolling of metal comprising at least one casting line and a rolling line 14 and at least one receiving platform 15,16 arranged between them, the at least one receiving platform 15, 16 comprising at least a first moveable section and at least a second moveable section, and wherein starting from a start up position casting from the first casting line 12:the at least one receiving platform comprising corresponding first and second moveable sections of the at least one casting line is arranged in a line with the at least one casting line,a slab is cast on the first receiving platform extending to a length greater than the length of one of the first and second moveable sections,the receiving platform comprising the first and second moveable sections of the at least one casting line is then moved together with the slab mounted thereon to be in-line with the rolling line 4,the slab is fed into the rolling line 4,when the slab has left the first moveable section , the first moveable section is moved back to the casting position to receive the subsequent cast slab.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9711855 | 1997-06-10 | ||
GBGB9711855.8A GB9711855D0 (en) | 1997-06-10 | 1997-06-10 | Method and apparatus for coupling the casting and rolling of metals |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0884118A1 true EP0884118A1 (en) | 1998-12-16 |
Family
ID=10813769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98302915A Withdrawn EP0884118A1 (en) | 1997-06-10 | 1998-04-15 | Method and apparatus for coupling the casting and rolling of metals |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0884118A1 (en) |
JP (1) | JPH1177101A (en) |
CA (1) | CA2239484A1 (en) |
GB (1) | GB9711855D0 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0893167A2 (en) * | 1997-07-17 | 1999-01-27 | Sms Schloemann-Siemag Aktiengesellschaft | Rolling mill |
EP2910316A1 (en) * | 2014-02-21 | 2015-08-26 | Primetals Technologies Germany GmbH | Simple advance control of a wedge position of an advance frame |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3735949A1 (en) * | 1987-10-23 | 1989-05-03 | Ruhrgas Ag | METHOD AND DEVICE FOR CLEANING THE SURFACE OF OVEN ROLLS OF A ROLLER OVEN |
DE4017928A1 (en) * | 1990-06-05 | 1991-12-12 | Schloemann Siemag Ag | METHOD AND SYSTEM FOR THE PRODUCTION OF HOT-ROLLED TAPES OR PROFILES FROM CONTINUOUSLY PRE-MATERIAL |
EP0492226A2 (en) * | 1990-12-21 | 1992-07-01 | Sms Schloemann-Siemag Aktiengesellschaft | Method of and installation for rolling hot wide strip starting from continuous cast thin slab |
EP0593002A1 (en) * | 1992-10-13 | 1994-04-20 | Sms Schloemann-Siemag Aktiengesellschaft | Method and device for rolling of hot wide strip of continuously cast thin stabs |
EP0770433A1 (en) * | 1995-10-27 | 1997-05-02 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Method to roll strip and plate and rolling line which performs such method |
-
1997
- 1997-06-10 GB GBGB9711855.8A patent/GB9711855D0/en not_active Ceased
-
1998
- 1998-04-15 EP EP98302915A patent/EP0884118A1/en not_active Withdrawn
- 1998-04-30 JP JP12036198A patent/JPH1177101A/en active Pending
- 1998-06-03 CA CA 2239484 patent/CA2239484A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3735949A1 (en) * | 1987-10-23 | 1989-05-03 | Ruhrgas Ag | METHOD AND DEVICE FOR CLEANING THE SURFACE OF OVEN ROLLS OF A ROLLER OVEN |
DE4017928A1 (en) * | 1990-06-05 | 1991-12-12 | Schloemann Siemag Ag | METHOD AND SYSTEM FOR THE PRODUCTION OF HOT-ROLLED TAPES OR PROFILES FROM CONTINUOUSLY PRE-MATERIAL |
EP0492226A2 (en) * | 1990-12-21 | 1992-07-01 | Sms Schloemann-Siemag Aktiengesellschaft | Method of and installation for rolling hot wide strip starting from continuous cast thin slab |
EP0593002A1 (en) * | 1992-10-13 | 1994-04-20 | Sms Schloemann-Siemag Aktiengesellschaft | Method and device for rolling of hot wide strip of continuously cast thin stabs |
EP0770433A1 (en) * | 1995-10-27 | 1997-05-02 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Method to roll strip and plate and rolling line which performs such method |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0893167A2 (en) * | 1997-07-17 | 1999-01-27 | Sms Schloemann-Siemag Aktiengesellschaft | Rolling mill |
EP0893167A3 (en) * | 1997-07-17 | 2000-04-19 | Sms Schloemann-Siemag Aktiengesellschaft | Rolling mill |
EP2910316A1 (en) * | 2014-02-21 | 2015-08-26 | Primetals Technologies Germany GmbH | Simple advance control of a wedge position of an advance frame |
WO2015124363A1 (en) * | 2014-02-21 | 2015-08-27 | Primetals Technologies Germany Gmbh | Simple pre-control of a wedge-type roll-gap adjustment of a roughing stand |
CN105980072A (en) * | 2014-02-21 | 2016-09-28 | 首要金属科技德国有限责任公司 | Simple pre-control of a wedge-type roll-gap adjustment of a roughing stand |
US10456818B2 (en) | 2014-02-21 | 2019-10-29 | Primetals Technologies Germany Gmbh | Simple pre-control of a wedge-type roll-gap adjustment of a roughing stand |
Also Published As
Publication number | Publication date |
---|---|
GB9711855D0 (en) | 1997-08-06 |
CA2239484A1 (en) | 1998-12-10 |
JPH1177101A (en) | 1999-03-23 |
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18W | Application withdrawn |
Withdrawal date: 20010217 |