EP1183118A1 - Automation of a high-speed continuous casting plant - Google Patents
Automation of a high-speed continuous casting plantInfo
- Publication number
- EP1183118A1 EP1183118A1 EP00942018A EP00942018A EP1183118A1 EP 1183118 A1 EP1183118 A1 EP 1183118A1 EP 00942018 A EP00942018 A EP 00942018A EP 00942018 A EP00942018 A EP 00942018A EP 1183118 A1 EP1183118 A1 EP 1183118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- measurement
- speed
- distributor
- narrow
- 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.)
- Granted
Links
- 238000009749 continuous casting Methods 0.000 title abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 85
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 9
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 17
- 230000006870 function Effects 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 3
- 239000000571 coke Substances 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 229910001338 liquidmetal Inorganic materials 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 239000000155 melt Substances 0.000 description 10
- 239000002893 slag Substances 0.000 description 7
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
Definitions
- This automation must be traced back in its external operating language to a simple functional language that is easy to understand by the operating personnel.
- the degree of automation which in its operating language only knows the choice of the casting speed and the control of the narrow side heat flows on the operator (NO) or drive (ND) side, should allow the possibility of an autopilot to drive if certain preconditions like
- Figure 1 shows this relationship and shows that at high casting speeds, when using casting powder and a certain casting speed of z. B.> 4.5 m / min the mold load remains almost constant and the strand shell load decreases sharply.
- the reason for this is a constant slag lubrication film at high casting speeds and thus a constant heat transfer, but a shorter dwell time of the strand shell in the mold in proportion to the increase in casting speed.
- the picture makes it clear that with increasing casting speed the mold load no longer rises and the strand shell load becomes lower, which reduces the risk of cracking but also the strand shell z. 8. becomes thinner and hotter at the end of the mold.
- FIG. 2 shows the relationships between cast slag film
- Strand shell temperature e.g. B. at the mold exit
- strand shell thickness and shrinkage
- Mold and strand shell loading or shrinkage max. Mold skin temperature in the mold level and thus the mold life in relation to the recrystallization temperature, which leads to the softening of the cold-rolled copper.
- the object of the invention is to enable automation of the continuous casting process on the basis of an online 'data acquisition, which in addition to a Semi-automatic, ie the control of narrow side conicity and casting speed, also a fully automatic, auto-pilot driving style
- Figure 1 The mold and strand shell loading depending on the casting speed
- the thermal load on the copper plate in the mold level and the service life of the copper plates are relativized at the recrystallization temperature of the cold-rolled copper plate.
- Figure 3 shows a) a slab mold (1) with (1.1) and without pouring funnel and in its conicity and adjustable narrow sides (1.2) as well as immersion spout (1.4) and casting powder, b) the mold load, expressed as MW / m2 for broad sides (WL ) and (WF) as well as for the narrow sides (ND) and (NO) over the casting time and c) the ratio of the heat flows from broad sides to narrow sides, expressed as NO / WL, NO / WF and ND / WL, NO / WF, the Describe the course of the heat flows more easily and make their correction easier via the conicity adjustment during casting.
- Figure 4 represents casting situations A, B, C using a) the heat flows, expressed as MW / ml, or b) the ratio of the heat flows ND / WF, ND / WL and NO / WF, NO / WL, which is a correction experienced by adjusting the narrow sides in their taper from position 0 to position 1.
- Figure 5 shows the temperature profile of melts in the distributor over a casting time of one hour.
- Figure 6 shows the casting window, formed between the steel temperature in the distributor and the casting speed, with the exemplary temperature profiles of different melts.
- Figure 7 represents the data acquisition and the control loop in the area of
- FIG. 3 consists of the sub-figures a), b) and c).
- FIG. 3 a) schematically represents a slab or bloom block (1), each consisting of two individual narrow sides (1.2), which on the operating side (1.2.1) (NO) and drive side (1.2.2) (ND) with adjusting cylinders (1.2.3) and two broad sides (1.3), the rear side (1.3.1) (WF) and the loose side (1.3.2) (WL).
- the mold (1) can also advantageously be provided with a pouring funnel (1.1).
- the liquid steel (1.4) is poured through the immersion spout (1.5) under the bath level (1.7.2) into the mold when casting powder (1.6) is used to form pourable slag (1.6.1) and a pouring slag film between the mold (1) and the strand shell (1.7.1), which is used for lubrication and heat flow control.
- Figure 3 b) and c) show the specific heat flow in MW / 2 of the broad side WF, WL (1.3.2) and the narrow sides NO (1.2.1), NO (1.2.2) in the normal, inconspicuous casting process, the casting time from start to time tx, when the steel is in temperature equilibrium with the distributor.
- the narrow side streams have to show a ratio to the broad sides of ⁇ 1 via the conicity of the narrow sides, which must be kept constant over the casting time.
- Figure 5 shows the temperature profile of numerous melts over a period of approximately 1 hour in the distributor. It can be seen that, for example, in these pans with a melt content of approx. 180 t, the steel temperature drops by approx. 5 ° C./hour. This drop in the steel temperature in the distributor can be kept relatively low and depends essentially on that
- the absolute temperature at which the steel enters the distributor is specified by the continuous casting operation, is set by the steelworks and depends on, for example
- Figure 6 shows the casting window formed by the steel temperature in the distributor and the maximum possible casting speed.
- the pouring window (4) is formed by an upper (3.2) and lower (3.1) temperature limit. Furthermore, in addition to the steel temperature in the mold (3.3), the range of the liquidus temperature (3.4) of z. B. Low carbon steel grades are shown. The steel temperature in the mold increases with a constant steel temperature in the distributor inlet with a larger distributor volume, improved distributor insulation,
- the diagram in FIG. 6 shows three melts with different distributor temperatures and thus different maximum possible casting speeds, but for example the same temperature loss of 5 ° C./hour.
- the steel temperature in the distributor is 1,560 ° C at the start of the melt and 1,555 ° C at the end of the pour, which allows a maximum casting speed of 5.0 m / min and 5.85 m / min at the end of the pour.
- the temperature is 1,550 ° C and allows a casting speed of 7.2 m / min and at the end of casting with a temperature of 1,545 ° C a casting speed of> 8 m / min.
- the speed of max. 8 m / min can be reached when a temperature of approx. 1,548 ° C is reached.
- Figure 7 shows the structure of a semi-automatic or fully automatic / auto-pilot for casting a high-speed system.
- the system consists of the steel pan (5), a distributor (6) with a stopper or slide closure (6.1) as well as a discontinuous or continuous temperature measurement in the distributor, a continuous caster with an oscillating mold (1) and adjustable narrow sides (12) and pull-out rollers (6.3 ), which are driven by a motor (6.3.1) and feed the strand at a controlled casting speed (1.8).
- the fully automatic system corrects the conicity settings of each individual narrow side on the basis of the heat flow conditions between narrow sides and broad sides outside of a narrow side / broad side ratio of, for example
- the invention makes reproducible operation of the continuous caster possible with maximum possible productivity while avoiding breakthroughs and controlled strand quality.
- Case 1 with a melt that leads to a steel temperature in the distributor of 1,570 ° C at the start of casting and 1,565 ° C at the end of casting and a casting speed of 4.0 and max. Allows 4.5 m / min
- Case 2 with a melt that leads to a steel temperature in the distributor of 1,560 ° C at the start of casting and 1,560 ° C at the end of casting and a casting speed of 5.0 and max. 5.85 m / min
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Devices For Molds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19925713 | 1999-06-07 | ||
DE19925713 | 1999-06-07 | ||
PCT/EP2000/005216 WO2000074878A1 (en) | 1999-06-07 | 2000-06-07 | Automation of a high-speed continuous casting plant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1183118A1 true EP1183118A1 (en) | 2002-03-06 |
EP1183118B1 EP1183118B1 (en) | 2003-01-02 |
Family
ID=7910298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00942018A Expired - Lifetime EP1183118B1 (en) | 1999-06-07 | 2000-06-07 | Automation of a high-speed continuous casting plant |
Country Status (12)
Country | Link |
---|---|
US (2) | US6793006B1 (en) |
EP (1) | EP1183118B1 (en) |
JP (1) | JP2003501265A (en) |
KR (1) | KR100752693B1 (en) |
CN (1) | CN1200788C (en) |
AT (1) | ATE230318T1 (en) |
CA (1) | CA2375133A1 (en) |
DE (2) | DE10027324C2 (en) |
ES (1) | ES2192532T3 (en) |
MX (1) | MXPA01012413A (en) |
TW (1) | TW469187B (en) |
WO (1) | WO2000074878A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10027324C2 (en) * | 1999-06-07 | 2003-04-10 | Sms Demag Ag | Process for casting a metallic strand and system therefor |
EP1066898B1 (en) * | 1999-07-06 | 2005-03-09 | SMS Demag AG | Process for feeding molten metal in a continuous casting machine |
KR100782828B1 (en) * | 2005-12-29 | 2007-12-06 | 삼성전자주식회사 | Method for displaying messages in digital appliances and display control device |
DE102006060673A1 (en) * | 2006-11-02 | 2008-05-08 | Sms Demag Ag | Method and control device for controlling the heat dissipation of a side plate of a mold |
EP2025432B2 (en) * | 2007-07-27 | 2017-08-30 | Concast Ag | Method for creating steel long products through strand casting and rolling |
US20100058321A1 (en) * | 2008-09-04 | 2010-03-04 | Anderson Greg L | Approach for deploying software to network devices |
KR101193885B1 (en) | 2010-09-29 | 2012-10-26 | 현대제철 주식회사 | Driving control apparatus of skin pass mill |
DE102014112206A1 (en) * | 2014-08-26 | 2016-03-03 | Peter Valentin | Method for continuous casting of a metal, in particular a steel, and apparatus for continuous casting |
CN106141132A (en) * | 2015-03-31 | 2016-11-23 | 新日铁住金工程技术株式会社 | The manufacture method of strand and continuous casting apparatus |
AT519154B1 (en) * | 2016-09-26 | 2019-12-15 | Primetals Technologies Austria GmbH | Regulation of the narrow side taper of a continuous casting mold |
CN106734202A (en) * | 2016-12-27 | 2017-05-31 | 中冶连铸技术工程有限责任公司 | Bar Wire Product and arrowband rolling line and its production method |
CN108031809B (en) * | 2017-12-07 | 2020-05-22 | 中国重型机械研究院股份公司 | Narrow-edge taper control method for electric width adjusting device of crystallizer |
CN111822689B (en) * | 2020-07-27 | 2021-08-31 | 宝武集团马钢轨交材料科技有限公司 | High-quality steel continuous casting argon blowing stopper rod, stopper rod argon blowing system and argon blowing method |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3478808A (en) * | 1964-10-08 | 1969-11-18 | Bunker Ramo | Method of continuously casting steel |
DE2440273C2 (en) * | 1974-08-20 | 1976-09-30 | Mannesmann Ag | PROCEDURE FOR CONTROLLING THE CONTINUOUS CASTING PROCESS DURING STEEL PASTING, AND ARRANGEMENT FOR PERFORMING THE PROCESS |
JPS52148435A (en) * | 1976-06-04 | 1977-12-09 | Ishikawajima Harima Heavy Ind | Adjusting method of taper in mould for coninuous casting and its device |
JPS6054138B2 (en) * | 1981-01-08 | 1985-11-28 | 新日本製鐵株式会社 | Method for detecting inclusions in cast steel in continuous casting molds |
JPS58145344A (en) * | 1982-02-24 | 1983-08-30 | Kawasaki Steel Corp | Method for controlling taper quantity on short side of casting mold in continuous casting |
JPH0747199B2 (en) * | 1985-06-04 | 1995-05-24 | 住友金属工業株式会社 | Continuous casting method and its mold |
JPH01162553A (en) * | 1987-12-18 | 1989-06-27 | Sumitomo Metal Ind Ltd | Abnormality observating apparatus for molten steel level in continuous casting machine |
AT389251B (en) * | 1987-12-23 | 1989-11-10 | Voest Alpine Ind Anlagen | COOLING OF A CONTINUOUS CASTING CHILL |
DE4117073A1 (en) * | 1991-05-22 | 1992-11-26 | Mannesmann Ag | TEMPERATURE MEASUREMENT SLAM CHOCOLATE |
JP3035688B2 (en) * | 1993-12-24 | 2000-04-24 | トピー工業株式会社 | Breakout prediction system in continuous casting. |
DE4404148A1 (en) * | 1994-02-10 | 1995-08-17 | Inteco Int Techn Beratung | Process and equipment for continuous casting of metal strands, esp. of steel |
DE19508476A1 (en) * | 1995-03-09 | 1996-09-12 | Siemens Ag | Control system for a plant in the basic material or processing industry or similar |
DE19639297C2 (en) * | 1996-09-25 | 2000-02-03 | Schloemann Siemag Ag | Method and device for high-speed continuous casting plants with a reduction in strand thickness during solidification |
US6125916A (en) * | 1996-11-12 | 2000-10-03 | Giovanni Arvedi | Apparatus for the high-speed continuous casting of good quality thin steel slabs |
DE59703251D1 (en) * | 1996-11-28 | 2001-05-03 | Siemens Ag | METHOD FOR PARAMETERIZING A FUZZY AUTOMATIC DEVICE FOR COMPARING A MEASURING SIGNAL WITH A PATTERN SIGNAL |
JPH10249492A (en) * | 1997-03-11 | 1998-09-22 | Nippon Steel Corp | Mold for continuously casting steel |
DE19725433C1 (en) * | 1997-06-16 | 1999-01-21 | Schloemann Siemag Ag | Method and device for early breakthrough detection in the continuous casting of steel with an oscillating mold |
DE10027324C2 (en) * | 1999-06-07 | 2003-04-10 | Sms Demag Ag | Process for casting a metallic strand and system therefor |
EP1066898B1 (en) * | 1999-07-06 | 2005-03-09 | SMS Demag AG | Process for feeding molten metal in a continuous casting machine |
-
2000
- 2000-06-05 DE DE10027324A patent/DE10027324C2/en not_active Expired - Fee Related
- 2000-06-07 DE DE50001011T patent/DE50001011D1/en not_active Expired - Lifetime
- 2000-06-07 EP EP00942018A patent/EP1183118B1/en not_active Expired - Lifetime
- 2000-06-07 WO PCT/EP2000/005216 patent/WO2000074878A1/en active IP Right Grant
- 2000-06-07 AT AT00942018T patent/ATE230318T1/en not_active IP Right Cessation
- 2000-06-07 CN CNB008114722A patent/CN1200788C/en not_active Expired - Fee Related
- 2000-06-07 ES ES00942018T patent/ES2192532T3/en not_active Expired - Lifetime
- 2000-06-07 CA CA002375133A patent/CA2375133A1/en not_active Abandoned
- 2000-06-07 MX MXPA01012413A patent/MXPA01012413A/en not_active Application Discontinuation
- 2000-06-07 US US10/009,153 patent/US6793006B1/en not_active Expired - Fee Related
- 2000-06-07 JP JP2001501396A patent/JP2003501265A/en active Pending
- 2000-06-07 KR KR1020017015701A patent/KR100752693B1/en not_active IP Right Cessation
- 2000-12-18 TW TW089111188A patent/TW469187B/en not_active IP Right Cessation
-
2004
- 2004-06-04 US US10/860,866 patent/US6854507B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0074878A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR100752693B1 (en) | 2007-08-29 |
TW469187B (en) | 2001-12-21 |
ATE230318T1 (en) | 2003-01-15 |
US6854507B2 (en) | 2005-02-15 |
ES2192532T3 (en) | 2003-10-16 |
WO2000074878A1 (en) | 2000-12-14 |
DE50001011D1 (en) | 2003-02-06 |
JP2003501265A (en) | 2003-01-14 |
US20040244941A1 (en) | 2004-12-09 |
US6793006B1 (en) | 2004-09-21 |
CN1200788C (en) | 2005-05-11 |
CA2375133A1 (en) | 2000-12-14 |
KR20020026448A (en) | 2002-04-10 |
DE10027324C2 (en) | 2003-04-10 |
EP1183118B1 (en) | 2003-01-02 |
CN1368908A (en) | 2002-09-11 |
MXPA01012413A (en) | 2004-09-10 |
DE10027324A1 (en) | 2001-03-08 |
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