KR100510841B1 - 연속주조기의 2차 냉각 최적패턴 설계방법 - Google Patents
연속주조기의 2차 냉각 최적패턴 설계방법 Download PDFInfo
- Publication number
- KR100510841B1 KR100510841B1 KR10-2001-0063312A KR20010063312A KR100510841B1 KR 100510841 B1 KR100510841 B1 KR 100510841B1 KR 20010063312 A KR20010063312 A KR 20010063312A KR 100510841 B1 KR100510841 B1 KR 100510841B1
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- South Korea
- Prior art keywords
- objective function
- continuous casting
- value
- casting machine
- temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005266 casting Methods 0.000 title abstract description 12
- 238000009749 continuous casting Methods 0.000 claims abstract description 37
- 229910001208 Crucible steel Inorganic materials 0.000 claims abstract description 27
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 230000002159 abnormal effect Effects 0.000 claims abstract description 3
- 238000005457 optimization Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000007711 solidification Methods 0.000 abstract description 9
- 230000008023 solidification Effects 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 6
- 238000004364 calculation method Methods 0.000 description 10
- 238000003303 reheating Methods 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005206 flow analysis Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
- B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims (3)
- 주편을 연속주조하는 연속주조기에서 조업 초기조건 및 경계조건을 부여한 다음 주편의 전열거동을 2차원 비정상 문제로 간주하고 에너지 방정식으로부터 주편온도를 계산하는 제1단계(12,13)와;상기 주편온도를 계산한 다음, 설정한 목적함수값을 계산하여 본 발명에서 도출한 수학식을 이용하여 유한차분법에 의해서 목적함수 구배를 계산하는 제2단계(14)와;상기 목적함수 구배를 계산한 다음, 최적화기법중의 하나인 BFGS (Broydon-Fletcher-Goldfarb-Shanno)법을 이용하여 목적함수의 최소화 방향으로 열전달계수를 계산하여 수정된 2차 냉각대 열전달계수를 추정한 후 다시 수정된 열전달계수를 이용한 주편온도를 계산하는 제3단계와(15,16);상기 수정된 주편의 온도분포를 이용한 목적함수의 값이 최소값에 도달하였는지를 판단하여 최소값이면 2차 냉각 최적패턴값을 출력을 하며, 최소값이 아니면 상기 제2단계(14)로 다시 피드백(Feed Back)하는 제4단계(17,18)로 구성되는 것을 특징으로 하는 연속주조기의 2차 냉각 최적패턴 설계방법.
- 제1항에 있어서,상기 제2단계(14)에 있어서 본 발명에서 도출한 수학식은 하기와 같은 선형방정식인 것을 특징으로 하는 연속주조기의 2차 냉각 최적패턴 설계방법.
- 제1항에 있어서,상기 제4단계(17,18)에 있어서 수정된 주편의 온도분포를 이용한 목적함수의 값이 최소값에 도달하였는지를 판단하는 기준은 하기 수학식에서 제시된 목적함수값이 10-3∼10-6의 이내에 들어오면 최소값에 도달한 것으로 간주하는 것을 특징으로 하는 연속주조기의 2차 냉각 최적패턴 설계방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0063312A KR100510841B1 (ko) | 2001-10-15 | 2001-10-15 | 연속주조기의 2차 냉각 최적패턴 설계방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0063312A KR100510841B1 (ko) | 2001-10-15 | 2001-10-15 | 연속주조기의 2차 냉각 최적패턴 설계방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030031602A KR20030031602A (ko) | 2003-04-23 |
KR100510841B1 true KR100510841B1 (ko) | 2005-08-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2001-0063312A Expired - Fee Related KR100510841B1 (ko) | 2001-10-15 | 2001-10-15 | 연속주조기의 2차 냉각 최적패턴 설계방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100510841B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106040786A (zh) * | 2015-04-14 | 2016-10-26 | 丰田自动车株式会社 | 铸件的加工处理方法 |
KR20200080903A (ko) * | 2018-12-27 | 2020-07-07 | 주식회사 포스코건설 | 용광로 냉각구조의 설계방법 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2459254C2 (ru) * | 2007-04-27 | 2012-08-20 | Сименс Акциенгезелльшафт | Способ компьютеризованного обучения одной или более нейронных сетей |
DE102007058109A1 (de) * | 2007-12-03 | 2009-06-04 | Sms Demag Ag | Vorrichtung zur Steuerung oder Regelung einer Temperatur |
CN107321951B (zh) * | 2017-08-17 | 2019-08-13 | 中冶赛迪工程技术股份有限公司 | 一种控制连铸机二冷回路中喷嘴水量调节下限值的方法 |
CN112014426B (zh) * | 2020-09-25 | 2023-12-19 | 天长市高朋实验设备有限公司 | 一种钢坯传热实验台 |
CN113245519B (zh) * | 2021-04-29 | 2022-07-15 | 北京科技大学 | 一种连铸方坯二冷水量的动态控制方法及系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59199155A (ja) * | 1983-04-28 | 1984-11-12 | Sumitomo Heavy Ind Ltd | 連続鋳造設備における鋳片の表面温度制御方法 |
JPS6174763A (ja) * | 1984-09-17 | 1986-04-17 | Sumitomo Heavy Ind Ltd | 連続鋳造機における鋳片の表面温度制御方法 |
JPS61238453A (ja) * | 1985-04-12 | 1986-10-23 | Nippon Kokan Kk <Nkk> | 連続鋳造設備における二次冷却水制御方法 |
-
2001
- 2001-10-15 KR KR10-2001-0063312A patent/KR100510841B1/ko not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59199155A (ja) * | 1983-04-28 | 1984-11-12 | Sumitomo Heavy Ind Ltd | 連続鋳造設備における鋳片の表面温度制御方法 |
JPS6174763A (ja) * | 1984-09-17 | 1986-04-17 | Sumitomo Heavy Ind Ltd | 連続鋳造機における鋳片の表面温度制御方法 |
JPS61238453A (ja) * | 1985-04-12 | 1986-10-23 | Nippon Kokan Kk <Nkk> | 連続鋳造設備における二次冷却水制御方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106040786A (zh) * | 2015-04-14 | 2016-10-26 | 丰田自动车株式会社 | 铸件的加工处理方法 |
KR20200080903A (ko) * | 2018-12-27 | 2020-07-07 | 주식회사 포스코건설 | 용광로 냉각구조의 설계방법 |
KR102141071B1 (ko) * | 2018-12-27 | 2020-08-04 | 주식회사 포스코건설 | 용광로 냉각구조의 설계방법 |
Also Published As
Publication number | Publication date |
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KR20030031602A (ko) | 2003-04-23 |
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