CA2109397C - Method of and apparatus for manufacturing hot rolled steel strips, in particular from strip-shaped continuously cast primary material - Google Patents
Method of and apparatus for manufacturing hot rolled steel strips, in particular from strip-shaped continuously cast primary material Download PDFInfo
- Publication number
- CA2109397C CA2109397C CA002109397A CA2109397A CA2109397C CA 2109397 C CA2109397 C CA 2109397C CA 002109397 A CA002109397 A CA 002109397A CA 2109397 A CA2109397 A CA 2109397A CA 2109397 C CA2109397 C CA 2109397C
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- Canada
- Prior art keywords
- thin slab
- finish
- recrystallization
- heater
- set forth
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 16
- 239000010959 steel Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000001953 recrystallisation Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 238000005266 casting Methods 0.000 claims description 13
- 230000015556 catabolic process Effects 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000002421 finishing Substances 0.000 description 14
- 238000009749 continuous casting Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- B21B2201/00—Special rolling modes
- B21B2201/04—Ferritic rolling
Abstract
A method and apparatus for manufacturing hot-rolled steel strips from a continuously cast primary material, preferably thin slabs, in a plurality of successive steps in a continuous operation is disclosed. In the invention, thin slabs, which leave an equalizing furnace, are heated above the maximum temperature that can be achieved in the equalizing furnace and are thereafter are broken down in a break-dawn train, with the broken-down thin slabs being subsequently recrystallized and cooled down to a rolling temperature before being finish-rolled in the finishing train.
Description
FIELD Oh THE INDENTION
The invention relates to a method of and an apparatus for manufacturing hot-rolled steel strips from a continuously cast primary material, preferably, from thin slabs, in a plurality of successive steps in a continuous operation.
BACR(3ROUND OF THE INiIENTION
German Laid-open application {DE 4009860) disclos-es a method and an apparatus for manufacturing steel strips.
However, the high-quality steels which require use of temper-ature controlled rolls, can not be produced by the disclosed method without certain limitations. In particular, this method of manufacturing of the high-quality steels is not sufficiently flexible with regard to the final thickness an<?
to the final rolling temperature for manufacturing high-quality steels, which require a temperature above the maximum temperature achievable in the equalizing furnace, before the first step (breaking-down), and a noticeably lower temperature before the second step (finish-rolling).
The invention relates to a method of and an apparatus for manufacturing hot-rolled steel strips from a continuously cast primary material, preferably, from thin slabs, in a plurality of successive steps in a continuous operation.
BACR(3ROUND OF THE INiIENTION
German Laid-open application {DE 4009860) disclos-es a method and an apparatus for manufacturing steel strips.
However, the high-quality steels which require use of temper-ature controlled rolls, can not be produced by the disclosed method without certain limitations. In particular, this method of manufacturing of the high-quality steels is not sufficiently flexible with regard to the final thickness an<?
to the final rolling temperature for manufacturing high-quality steels, which require a temperature above the maximum temperature achievable in the equalizing furnace, before the first step (breaking-down), and a noticeably lower temperature before the second step (finish-rolling).
2~_~~~~'~l Accordingly, the object of the invention is to provide a method and a apparatus for manufacturing hot rolled steel strips from a continuously cast primary material, which would be flexible enough for manufacturing substantially all known high-quality steels.
SOMMARY OF THEINVENTION
This and other objects of the invention, which shall be hereafter apparent, are achieved by heating the thin slabs leaving the equalizing furnace to a temperature above 1150°C, before they enter the break-down train, recrystalization of the broken-down thin slabs, and cooling of the recrystallized thin slabs to a rolling temperature before they enter the finishing train. With this method, it is possible to roll, in addition to the high-quality steels which could be produced up to the present, high-quality steels wh~-ch require, before breaking-down, temperatures that exceed the maximum temperatures of the equalizing furnace selected, e.g., to correspond to the temperature stability of rolls, their bearing and drives.
SOMMARY OF THEINVENTION
This and other objects of the invention, which shall be hereafter apparent, are achieved by heating the thin slabs leaving the equalizing furnace to a temperature above 1150°C, before they enter the break-down train, recrystalization of the broken-down thin slabs, and cooling of the recrystallized thin slabs to a rolling temperature before they enter the finishing train. With this method, it is possible to roll, in addition to the high-quality steels which could be produced up to the present, high-quality steels wh~-ch require, before breaking-down, temperatures that exceed the maximum temperatures of the equalizing furnace selected, e.g., to correspond to the temperature stability of rolls, their bearing and drives.
Thus, according to one aspect, the invention provides a method of manufacturing hot-rolled steel strips from a continuously cast primary material in a plurality of successive continuous steps. The method comprises the steps of cutting off a thin slab of a pre-detE=_rmined length corresponding to a desired coil weight from a solidified primary material, and homogenizing the thin s:Lab in a equalizing furnace. The thin slab is heated across an entire cross-section thereof to a temperature above 1150°C
in a heater located downstream of the equalizing furnace.
The thin slab is broken down in a break-down train and recrystallized. The broken down thin slab is cooled to a rolling temperature. The thin slab is finish-rolled for producing a finish-rolled strip, cooled down, and reeled in an upcoiler.
The recrystallization permits the attainment of an optimal grain structure so that an unhardened unstressed material is rolled in the finishing train. This is achieved by matching the dwell time of the rolled stock in the recrystalization zone to specific properties of the rolled material.
Cooling the rolled stock before finish-rolling insures that the temperature for finish-rolling in the finishing grain can be optimally determined in accordance with the x-olling parameters, which correspond to the required temperature conditions in the finishing train,. for all high-quality steel.
Coiling up of the thin slabs before recrystallization and uncoiling them after the recrystallization increase the dwell time of the rolled stock in the recrystallization zone, without a need for a large space for the recrystalization zone and the use of a holding furnace permits reduction of the upkeep time before the finishing grain, without the need to stop the preceding slabs.
According to another aspect, the invention provides an apparatus for manufacturing hot rolled steel ;trips from a continuously cast primary material. The apparatus comprises at least one continuously casting machine for continuously casting the primary material, at least one shear, arranged downstream of the at least one continuously casting machine, for cutting off a separate tlZin slab from the primary material, and an equalizing furnace, located downstream of the shear, for homogenizing the thin slab. A
heater is located downstream of the equalizing furnace, and is capable of heating the thin slab, leaving the equalizing furnace to a temperature a 1150°C across an entire cross-section of the slab. A break-down train is located downstream of the heater, for breaking down the thin slab leaving the heater. Recrystallization means :is located downstream of the break-down train, for recry;~tallization of the thin slab having the break-down train. A means is located, downstream of the recrystallization means, for cooling down the thin slab leaving the recrystallization means to a rolling temperature. A finishing i=rain finish-rolls the thin slab to produce finish-rolled :trip. A
means is located downstream of the finishing i=rain for cooling down the finish-rolled strip, and an upcoiler, located downstream of the means for cooling down the finish-rolled strip, for reeling the finish-rolled strip.
-4a-~~~'l The apparatus according to the invention includes a heater, which is arranged between the equalizing furnace and the first stand of the breaking-down train, recrystalization means between the breaking-down train and the finishing train, and a cooling apparatus between the recrystalization means and the finishing train. Use of an induction heater permits reduction of the time of heating the rolling stock, so that the difference in the grade of the rolling stocks does not present any problems.
If a high-output continuous installation is used, then two continuous costing machines, arranged parallel with each other, are associated with a single finishing train.
When two casting lines are used, a ferry is provided between the two equalizing furnaces of the two casting lines and the heater. The ferry alternately transports the rolling stock from the two equalizing furnaces to the heater. If the finish-ing train is aligned with one of the casting lines then, advantageously, an accumulator furnace is arranged downstream of the ferry.
in a heater located downstream of the equalizing furnace.
The thin slab is broken down in a break-down train and recrystallized. The broken down thin slab is cooled to a rolling temperature. The thin slab is finish-rolled for producing a finish-rolled strip, cooled down, and reeled in an upcoiler.
The recrystallization permits the attainment of an optimal grain structure so that an unhardened unstressed material is rolled in the finishing train. This is achieved by matching the dwell time of the rolled stock in the recrystalization zone to specific properties of the rolled material.
Cooling the rolled stock before finish-rolling insures that the temperature for finish-rolling in the finishing grain can be optimally determined in accordance with the x-olling parameters, which correspond to the required temperature conditions in the finishing train,. for all high-quality steel.
Coiling up of the thin slabs before recrystallization and uncoiling them after the recrystallization increase the dwell time of the rolled stock in the recrystallization zone, without a need for a large space for the recrystalization zone and the use of a holding furnace permits reduction of the upkeep time before the finishing grain, without the need to stop the preceding slabs.
According to another aspect, the invention provides an apparatus for manufacturing hot rolled steel ;trips from a continuously cast primary material. The apparatus comprises at least one continuously casting machine for continuously casting the primary material, at least one shear, arranged downstream of the at least one continuously casting machine, for cutting off a separate tlZin slab from the primary material, and an equalizing furnace, located downstream of the shear, for homogenizing the thin slab. A
heater is located downstream of the equalizing furnace, and is capable of heating the thin slab, leaving the equalizing furnace to a temperature a 1150°C across an entire cross-section of the slab. A break-down train is located downstream of the heater, for breaking down the thin slab leaving the heater. Recrystallization means :is located downstream of the break-down train, for recry;~tallization of the thin slab having the break-down train. A means is located, downstream of the recrystallization means, for cooling down the thin slab leaving the recrystallization means to a rolling temperature. A finishing i=rain finish-rolls the thin slab to produce finish-rolled :trip. A
means is located downstream of the finishing i=rain for cooling down the finish-rolled strip, and an upcoiler, located downstream of the means for cooling down the finish-rolled strip, for reeling the finish-rolled strip.
-4a-~~~'l The apparatus according to the invention includes a heater, which is arranged between the equalizing furnace and the first stand of the breaking-down train, recrystalization means between the breaking-down train and the finishing train, and a cooling apparatus between the recrystalization means and the finishing train. Use of an induction heater permits reduction of the time of heating the rolling stock, so that the difference in the grade of the rolling stocks does not present any problems.
If a high-output continuous installation is used, then two continuous costing machines, arranged parallel with each other, are associated with a single finishing train.
When two casting lines are used, a ferry is provided between the two equalizing furnaces of the two casting lines and the heater. The ferry alternately transports the rolling stock from the two equalizing furnaces to the heater. If the finish-ing train is aligned with one of the casting lines then, advantageously, an accumulator furnace is arranged downstream of the ferry.
-.
BRIEF DESCRIPTION OF THE DRAWTNGs The invention will now be described in detail with reference to the drawings, wherein:
Fig. 1 is schematic side view of a single line continuous apparatus according to the present invention;
Fig. 2. is a plan view of the apparatus shown in Fig 1;
Fig. 3 is a schematic plan view of a two-line continuous apparatus according to the invention; and Fig. 4 is a schematic plan view of a modified two-line continuous apparatus according to the invention.
BRIEF DESCRIPTION OF THE DRAWTNGs The invention will now be described in detail with reference to the drawings, wherein:
Fig. 1 is schematic side view of a single line continuous apparatus according to the present invention;
Fig. 2. is a plan view of the apparatus shown in Fig 1;
Fig. 3 is a schematic plan view of a two-line continuous apparatus according to the invention; and Fig. 4 is a schematic plan view of a modified two-line continuous apparatus according to the invention.
2~ ~ ~;3~3''d Referring now to the drawings, wherein like numerals reflect like elements, throughaut the several views, Fig. 1 shows a continuous casting machine 1 and a shear 2, arranged downstream of the casting machine for cutting a continuously cast primary material into~separate thin slabs 3 having a length corresponding to the desired coil weight.
Downstream of the shear 2, there is provided an equalizing furnace 4, which is followed by another shear 5. An induction heater 6, located downstream of the equalizing furnace 4, can heat thin slabs 3 leaving the equalizing furnace 4 to a temperature of 1500°C. A de-scaling washing device 7 and a break-down train, here a preliminary roll stand 8, follow the induction heater 6. A recrystalization zone 9 follows the preliminary roll stand 9. A coiler 10 and an uncoiler 11, e.g., a coilbox, are provided in the recrystalization zone 10.
A holding furnace 12 is provided at the coiler 10 and uncoihr 11, in which the reeled coils can be stored for interim accumulation and for recrystalization. In the feed direction, a cooling device 13 is arranged downstream of the uncoiler 11, in which the rolled strip is cooled to an optimal temperature for the following finishing train 14 and if necessary, can be de-scaled. Another cooling zone 15 follows the finishing train 14, with an upcoiler 16 following the cooling zone 15.
Fig. 2 depicts two continuous casting machines 1,1° arranged parallel to each other, two shears 2,2' and two equalizing furnaces 4,4'. A ferry 17 follows the furnaces 4,4°. The ferry 17 comprises a single car is. The car 18 alternatively transports the thin slabs 3,3' from respective equalizing furnaces 4,4' to the pitch line.
Fig. 3 depicts an embodiment, in which the continuous casting machine 1', the shear 2' and the equalizing furnace 4' are arranged along the same line as the rolling train, whereas the continuous casting machine 1, the shear 2 and the equalizing furnace 4 are arranged along a line which extends parallel to the pitch line. In this embodiment, the ferry 17 serves likewise for alternatively transporting the rolled material into the pitch line. To insure a uniform casting and rolling process, an accumulator 19 is arranged downstream of the ferry. The accumulator is arranged in the same line as the finishing train and may be heated or not.
_g_ ~~~~ j~r~
While the preferred embodiments of the invention have been depicted in detail, it is to be expressly understood that modifications and adaptations may be made thereto, without departing from the spirit and scope of the invention, as delineated in the following claims:
_g_
Downstream of the shear 2, there is provided an equalizing furnace 4, which is followed by another shear 5. An induction heater 6, located downstream of the equalizing furnace 4, can heat thin slabs 3 leaving the equalizing furnace 4 to a temperature of 1500°C. A de-scaling washing device 7 and a break-down train, here a preliminary roll stand 8, follow the induction heater 6. A recrystalization zone 9 follows the preliminary roll stand 9. A coiler 10 and an uncoiler 11, e.g., a coilbox, are provided in the recrystalization zone 10.
A holding furnace 12 is provided at the coiler 10 and uncoihr 11, in which the reeled coils can be stored for interim accumulation and for recrystalization. In the feed direction, a cooling device 13 is arranged downstream of the uncoiler 11, in which the rolled strip is cooled to an optimal temperature for the following finishing train 14 and if necessary, can be de-scaled. Another cooling zone 15 follows the finishing train 14, with an upcoiler 16 following the cooling zone 15.
Fig. 2 depicts two continuous casting machines 1,1° arranged parallel to each other, two shears 2,2' and two equalizing furnaces 4,4'. A ferry 17 follows the furnaces 4,4°. The ferry 17 comprises a single car is. The car 18 alternatively transports the thin slabs 3,3' from respective equalizing furnaces 4,4' to the pitch line.
Fig. 3 depicts an embodiment, in which the continuous casting machine 1', the shear 2' and the equalizing furnace 4' are arranged along the same line as the rolling train, whereas the continuous casting machine 1, the shear 2 and the equalizing furnace 4 are arranged along a line which extends parallel to the pitch line. In this embodiment, the ferry 17 serves likewise for alternatively transporting the rolled material into the pitch line. To insure a uniform casting and rolling process, an accumulator 19 is arranged downstream of the ferry. The accumulator is arranged in the same line as the finishing train and may be heated or not.
_g_ ~~~~ j~r~
While the preferred embodiments of the invention have been depicted in detail, it is to be expressly understood that modifications and adaptations may be made thereto, without departing from the spirit and scope of the invention, as delineated in the following claims:
_g_
Claims (10)
1. A method of manufacturing hot-rolled steel strips from a continuously cast primary material in a plurality of successive continuous steps, said method comprising the steps of:
cutting off a thin slab of a pre-determined length corresponding to a desired coil weight from a solidified primary material;
homogenizing the thin slab in a equalizing furnace;
thereafter, heating the thin slab across an entire cross-section thereof to a temperature above 1150°C in a heater located downstream of the equalizing furnace;
thereafter, breaking down the thin slab in a break-down train;
recrystallizing the thin slab;
thereafter, cooling the broken down thin slab to a rolling temperature;
thereafter, finish-rolling the thin slab for producing a finish-rolled strip;
cooling down the finish-rolled strip; and reeling the finish-rolled strip in an upcoiler.
cutting off a thin slab of a pre-determined length corresponding to a desired coil weight from a solidified primary material;
homogenizing the thin slab in a equalizing furnace;
thereafter, heating the thin slab across an entire cross-section thereof to a temperature above 1150°C in a heater located downstream of the equalizing furnace;
thereafter, breaking down the thin slab in a break-down train;
recrystallizing the thin slab;
thereafter, cooling the broken down thin slab to a rolling temperature;
thereafter, finish-rolling the thin slab for producing a finish-rolled strip;
cooling down the finish-rolled strip; and reeling the finish-rolled strip in an upcoiler.
2. The method as set forth in claim 1, further comprising the steps of:
coiling-up the thin slab after the breaking down and before recrystallization; and uncoiling the thin slab after the recrystallization and before cooling down to a rolling temperature.
coiling-up the thin slab after the breaking down and before recrystallization; and uncoiling the thin slab after the recrystallization and before cooling down to a rolling temperature.
3. The method as set forth in claim 2, further comprising the step of interim storing the coiled-up thin slab before recrystallization.
4. An apparatus for manufacturing hot rolled steel strips from a continuously cast primary material, said apparatus comprising:
at least one continuously casting machine for continuously casting the primary material;
at least one shear, arranged downstream of the at least one continuously casting machine, for cutting off a separate thin slab from the primary material;
an equalizing furnace, located downstream of the shear, for homogenizing the thin slab;
a heater located downstream of the equalizing furnace, capable of heating the thin slab leaving the equalizing furnace to a temperature above 1150°C across an entire cross-section of the slab;
a break-down train, located downstream of the heater, for breaking down the thin slab leaving the heater;
recrystallization means, located downstream of the break-down train, for recrystallization of the thin slab having the break-down train; and means located, downstream of the recrystallization means, for cooling down the thin slab leaving the recrystallization means to a rolling temperature;
a finishing train for finish-rolling the thin slab to produce finish-rolled strip;
means located downstream of the finishing train for cooling down the finish-rolled strip; and an upcoiler, located downstream of the means for cooling down the finish-rolled strip, for reeling the finish-rolled strip.
at least one continuously casting machine for continuously casting the primary material;
at least one shear, arranged downstream of the at least one continuously casting machine, for cutting off a separate thin slab from the primary material;
an equalizing furnace, located downstream of the shear, for homogenizing the thin slab;
a heater located downstream of the equalizing furnace, capable of heating the thin slab leaving the equalizing furnace to a temperature above 1150°C across an entire cross-section of the slab;
a break-down train, located downstream of the heater, for breaking down the thin slab leaving the heater;
recrystallization means, located downstream of the break-down train, for recrystallization of the thin slab having the break-down train; and means located, downstream of the recrystallization means, for cooling down the thin slab leaving the recrystallization means to a rolling temperature;
a finishing train for finish-rolling the thin slab to produce finish-rolled strip;
means located downstream of the finishing train for cooling down the finish-rolled strip; and an upcoiler, located downstream of the means for cooling down the finish-rolled strip, for reeling the finish-rolled strip.
5. The apparatus as set forth in claim 4, wherein the heater comprises an induction means.
6. The apparatus as set forth in claim 4 or 5, wherein a coiler and an uncoiler are arranged at the recrystallization means.
7. The apparatus as set forth in claim 6, wherein the uncoiler comprises a coilbox.
8. The apparatus as set forth in any one of claims 4 to 7, further comprising a holding furnace associated with the recrystallization means.
9. The apparatus as set forth in any one of claims 4 to 8, comprising:
two casting machines, extending parallel to each other;
two shears arranged downstream of the two casting machines, respectively;
two equalizing furnaces arranged downstream of the two shears, respectively; and a ferry, arranged between the two equalizing furnaces and the heater, for alternatively transporting thin slabs from the two equalizing furnaces to the heater.
two casting machines, extending parallel to each other;
two shears arranged downstream of the two casting machines, respectively;
two equalizing furnaces arranged downstream of the two shears, respectively; and a ferry, arranged between the two equalizing furnaces and the heater, for alternatively transporting thin slabs from the two equalizing furnaces to the heater.
10. The apparatus as set forth in claim 9, further comprising an accumulator arranged downstream of the ferry and upstream of the heater.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4236307A DE4236307A1 (en) | 1992-10-28 | 1992-10-28 | Method and plant for the production of hot-rolled steel strip, in particular from strip-shaped continuous material |
| DEP4236307.1 | 1992-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2109397A1 CA2109397A1 (en) | 1994-04-29 |
| CA2109397C true CA2109397C (en) | 2003-04-08 |
Family
ID=6471502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002109397A Expired - Fee Related CA2109397C (en) | 1992-10-28 | 1993-10-27 | Method of and apparatus for manufacturing hot rolled steel strips, in particular from strip-shaped continuously cast primary material |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0595282B2 (en) |
| JP (1) | JP3271724B2 (en) |
| KR (1) | KR970001550B1 (en) |
| CN (1) | CN1051259C (en) |
| AT (1) | ATE131753T1 (en) |
| CA (1) | CA2109397C (en) |
| DE (2) | DE4236307A1 (en) |
| RU (1) | RU2106212C1 (en) |
| TW (1) | TW262407B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1280207B1 (en) * | 1995-08-02 | 1998-01-05 | Danieli Off Mecc | CONTINUOUS CASTING PROCESS FOR LONG PRODUCTS AND RELATED CONTINUOUS CASTING LINE |
| IT1290743B1 (en) * | 1997-04-10 | 1998-12-10 | Danieli Off Mecc | LAMINATION PROCESS FOR FLAT PRODUCTS WITH THIN THICKNESSES AND RELATED ROLLING LINE |
| DE19725434C2 (en) * | 1997-06-16 | 1999-08-19 | Schloemann Siemag Ag | Process for rolling hot wide strip in a CSP plant |
| WO2000051755A1 (en) * | 1999-03-04 | 2000-09-08 | Pohang Iron & Steel Co., Ltd. | Method of manufacturing hot rolled steel sheet using mini mill process |
| KR100368253B1 (en) | 1997-12-09 | 2003-03-15 | 주식회사 포스코 | Method for manufacturing hot rolled strip by mini mill process |
| DE19814223A1 (en) * | 1998-03-31 | 1999-10-07 | Schloemann Siemag Ag | Process for the production of microalloyed structural steels |
| DE19821301A1 (en) * | 1998-05-13 | 1999-11-18 | Abb Patent Gmbh | Arrangement and method for producing steel strip |
| DE10330210A1 (en) | 2003-07-03 | 2005-01-20 | Sms Demag Ag | Apparatus for producing hot-rolled hot strip, in particular from strip-shaped continuously cast semi-finished material |
| DE10357363B4 (en) * | 2003-12-09 | 2006-02-09 | Ispat Industries Ltd., Taluka-Pen | Method and plant for casting and immediately subsequent rolling of casting strands of metal, in particular of steel materials, preferably thin strands |
| DE102004058550A1 (en) * | 2004-12-03 | 2006-06-14 | Sms Demag Ag | CSP continuous caster with roller hearth furnace and swivel ferries |
| CN100418650C (en) * | 2006-09-29 | 2008-09-17 | 邯郸钢铁股份有限公司 | CSP production line cold rolling feed deformation system |
| DE102009057524A1 (en) | 2009-12-02 | 2011-06-09 | Sms Siemag Ag | Process for hot rolling a metal strip or sheet and hot rolling mill |
| IT1402239B1 (en) * | 2010-07-21 | 2013-08-28 | Danieli Off Mecc | MAINTENANCE SYSTEM IN TEMPERATURE AND / OR POSSIBLE WARMING OF LONG METAL PRODUCTS AND ITS PROCEDURE |
| AT511429B1 (en) * | 2011-06-10 | 2012-12-15 | Siemens Vai Metals Tech Gmbh | METHOD AND DEVICE FOR PRE-TREATING A ROLLING BEFORE ROLLING |
| AT511674B1 (en) * | 2011-06-24 | 2013-04-15 | Siemens Vai Metals Tech Gmbh | COMMISSIONING OF A FINISHED ROLLING CABLE IN A GIESS-WALZ-VERBUNDANLAGE |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1038328A (en) * | 1949-08-27 | 1953-09-28 | ||
| DE2613459A1 (en) * | 1976-03-30 | 1977-10-13 | Schloemann Siemag Ag | Arrangement for avoiding scrap in a rolling mill - for wide strip material, during break down of the prodn. line and/or the strip winding arrangement |
| DE3241745C2 (en) † | 1982-11-11 | 1985-08-08 | Mannesmann AG, 4000 Düsseldorf | Process for the production of hot-rolled steel strip from continuously cast raw material in directly successive work steps |
| IT1214200B (en) * | 1987-08-05 | 1990-01-10 | Danieli Off Mecc | BRAME TEMPERATURE EQUALIZATION AND PROCEDURE IN THE CONTINUOUS CASTING VALLEY. |
| IT1214201B (en) * | 1987-08-05 | 1990-01-10 | Danieli Off Mecc | LAMINATION PLANT FOR LONG PRODUCTS FROM BILLETS AND BLUMES FROM MULTIPLE CONTINUOUS CASTING LINES. |
| DE3816469A1 (en) † | 1988-05-13 | 1989-11-23 | Schloemann Siemag Ag | Multi-strand continuous casting installation with a downstream continuous rolling mill |
| WO1990013673A1 (en) † | 1989-05-08 | 1990-11-15 | Kawasaki Steel Corporation | Process for manufacturing unidirectional silicon steel sheet excellent in magnetic properties |
| DE4001288A1 (en) * | 1990-01-18 | 1991-07-25 | Schloemann Siemag Ag | PLANT FOR ROLLING WARM BROADBAND |
| DE4009860C2 (en) * | 1990-03-28 | 1999-11-18 | Schloemann Siemag Ag | Process and plant for the production of hot-rolled steel strip, in particular for stainless steels, from strip-shaped continuous material |
| DE4041206C2 (en) † | 1990-12-21 | 2003-04-17 | Sms Demag Ag | Process and plant for the production of hot-rolled steel strip, in particular for stainless steels from continuously cast primary material |
-
1992
- 1992-10-28 DE DE4236307A patent/DE4236307A1/en not_active Withdrawn
-
1993
- 1993-10-08 TW TW082108345A patent/TW262407B/zh active
- 1993-10-13 JP JP25592893A patent/JP3271724B2/en not_active Expired - Fee Related
- 1993-10-19 KR KR1019930021671A patent/KR970001550B1/en not_active IP Right Cessation
- 1993-10-27 RU RU93049263A patent/RU2106212C1/en not_active IP Right Cessation
- 1993-10-27 DE DE59301206T patent/DE59301206D1/en not_active Expired - Lifetime
- 1993-10-27 CA CA002109397A patent/CA2109397C/en not_active Expired - Fee Related
- 1993-10-27 EP EP93117379A patent/EP0595282B2/en not_active Expired - Lifetime
- 1993-10-27 AT AT93117379T patent/ATE131753T1/en not_active IP Right Cessation
- 1993-10-28 CN CN93119575A patent/CN1051259C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE4236307A1 (en) | 1994-05-05 |
| DE59301206D1 (en) | 1996-02-01 |
| CN1051259C (en) | 2000-04-12 |
| KR940008781A (en) | 1994-05-16 |
| EP0595282B2 (en) | 2002-01-02 |
| JP3271724B2 (en) | 2002-04-08 |
| TW262407B (en) | 1995-11-11 |
| EP0595282B1 (en) | 1995-12-20 |
| CA2109397A1 (en) | 1994-04-29 |
| CN1088491A (en) | 1994-06-29 |
| KR970001550B1 (en) | 1997-02-11 |
| ATE131753T1 (en) | 1996-01-15 |
| RU2106212C1 (en) | 1998-03-10 |
| JPH06198302A (en) | 1994-07-19 |
| EP0595282A1 (en) | 1994-05-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |