JP2012024817A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2012024817A5 JP2012024817A5 JP2010166447A JP2010166447A JP2012024817A5 JP 2012024817 A5 JP2012024817 A5 JP 2012024817A5 JP 2010166447 A JP2010166447 A JP 2010166447A JP 2010166447 A JP2010166447 A JP 2010166447A JP 2012024817 A5 JP2012024817 A5 JP 2012024817A5
- Authority
- JP
- Japan
- Prior art keywords
- slab
- machine
- cutting
- strand
- steel
- 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
Description
本発明は、連続鋳造時に、鋳型からピンチロールにより引抜かれたストランドを、鋳込条件情報に基づいて算出される補正係数により公称単位重量を補正して得られる、所要の請求重量を有する請求長さの鋼片に切断する鋼片の切断方法において、前記ストランドの凝固が完了している連続鋳造機の下流位置に、固定ポイントを設定すると共に、前記鋼片の切断指示長の計算に、切断対象の鋼片に対応する位置のストランドが、前記鋳型から前記固定ポイントを通過する迄の機内滞留時間を反映させることにより、前記課題を解決したものである。 The present invention provides a bill length having a required bill weight obtained by correcting a nominal unit weight of a strand drawn by a pinch roll from a mold at the time of continuous casting using a correction coefficient calculated based on casting condition information. In the method of cutting a steel piece to be cut into a steel piece, a fixing point is set at a downstream position of the continuous casting machine where the solidification of the strand has been completed, and the cutting is calculated for the cutting instruction length of the steel piece. The problem is solved by reflecting the staying time in the machine until the strand at the position corresponding to the target steel slab passes through the fixed point from the mold.
本発明によれば、鋳型から引抜かれたストランドの外形(厚さ)に影響する機内滞留時間を考慮して切断時の切断指示長を計算するようにしたので、メニスカス部の鋳造速度のみならず、機内の速度履歴を反映させることができ、凝固完了ポイントの変化や鋳片温度差による重量偏差を低減させて、一段と請求重量に見合った鋼片長さに精度良く切断することができるようになった。 According to the present invention, the cutting instruction length at the time of cutting is calculated in consideration of the residence time in the machine that affects the outer shape (thickness) of the strand drawn from the mold, so that not only the casting speed of the meniscus part is calculated. It is possible to reflect the speed history in the machine, reduce the weight deviation due to the change in the solidification completion point and the slab temperature difference, and more accurately cut to the billet length corresponding to the requested weight. It was.
Claims (4)
前記ストランドの凝固が完了している連続鋳造機の下流位置に、固定ポイントを設定すると共に、
前記鋼片の切断指示長の計算に、切断対象の鋼片に対応する位置のストランドが、前記鋳型から前記固定ポイントを通過する迄の機内滞留時間を反映させることを特徴とする鋼片の切断方法。 A billet of billed length having a required billing weight obtained by correcting a nominal unit weight of a strand drawn by a pinch roll from a mold during continuous casting with a correction coefficient calculated based on casting condition information In the cutting method of the steel piece to be cut into
At the downstream position of the continuous casting machine where the solidification of the strand is completed, a fixed point is set,
Cutting the steel slab characterized by reflecting the staying time in the machine until the strand at the position corresponding to the steel slab to be cut passes through the fixing point in the calculation of the cutting instruction length of the steel slab Method.
β=a・α2+b・α+c
α:機内滞留時間(sec.)
a、b、c:係数
で得られるパラメータ:βを乗じた次式
切断指示長(熱間値)=
請求スラブ長(冷間値)×熱間補正係数×β
により実現することを特徴とする請求項1に記載の鋼片の切断方法。 The reflection of the residence time in the machine is expressed by the following formula: β = a · α 2 + b · α + c
α: Residence time in the machine (sec.)
a, b, c: Parameters obtained by coefficients: The following formula multiplied by β Cutting instruction length (hot value) =
Requested slab length (cold value) x hot correction factor x β
It implement | achieves by these, The cutting method of the steel piece of Claim 1 characterized by the above-mentioned.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010166447A JP5560992B2 (en) | 2010-07-23 | 2010-07-23 | Billet cutting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010166447A JP5560992B2 (en) | 2010-07-23 | 2010-07-23 | Billet cutting method |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2012024817A JP2012024817A (en) | 2012-02-09 |
JP2012024817A5 true JP2012024817A5 (en) | 2013-07-18 |
JP5560992B2 JP5560992B2 (en) | 2014-07-30 |
Family
ID=45778405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010166447A Active JP5560992B2 (en) | 2010-07-23 | 2010-07-23 | Billet cutting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5560992B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5849937B2 (en) * | 2012-12-03 | 2016-02-03 | Jfeスチール株式会社 | Slab cutting method and slab cutting device in continuous casting machine |
CN110756758B (en) * | 2019-10-10 | 2021-06-04 | 中冶南方连铸技术工程有限责任公司 | Control method and device for minimizing residence time of casting blank in casting flow |
CN111531143A (en) * | 2020-05-29 | 2020-08-14 | 山东莱钢永锋钢铁有限公司 | Continuous casting machine system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61266167A (en) * | 1985-05-17 | 1986-11-25 | Sumitomo Metal Ind Ltd | Method for controlling cutting length of steel ingot |
JPS62220258A (en) * | 1986-03-20 | 1987-09-28 | Kawasaki Steel Corp | Method and apparatus for cutting control of casting bloom in continuous casting |
JPS62263856A (en) * | 1986-05-12 | 1987-11-16 | Kawasaki Steel Corp | Cutting control method for casting slab in continuous casting |
JPS63313642A (en) * | 1987-06-16 | 1988-12-21 | Nkk Corp | Apparatus for controlling cutting weight of cast slab |
JP4882735B2 (en) * | 2006-12-27 | 2012-02-22 | Jfeスチール株式会社 | Cutting method of continuous cast steel pieces |
-
2010
- 2010-07-23 JP JP2010166447A patent/JP5560992B2/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5674929B2 (en) | Rolling method for plate products and rolling line related thereto | |
JP5585739B2 (en) | Solidification completion position control method and solidification completion position control device | |
RU2010107862A (en) | METHOD FOR PRODUCING STEEL STRIP | |
JP5012056B2 (en) | Steel continuous casting method | |
JP2012024817A5 (en) | ||
JP6569494B2 (en) | Thin slab manufacturing equipment and pinch roll leveling method | |
CN104903016A (en) | Apparatus and method for controlling width of direct endless hot rolling line between continuous casting and hot rolling | |
JP5790470B2 (en) | Steel continuous casting method | |
JP2013066905A5 (en) | ||
JP5560992B2 (en) | Billet cutting method | |
CN103530510A (en) | Method for improving calculation accuracy of steel coil weight | |
JP2007307574A (en) | Continuous casting method of billet | |
CN103464470B (en) | Hot continuous rolling necking compensation control method | |
JP2011088184A (en) | Continuous casting method for alloy steel | |
JP2013006190A (en) | Rolling method of bar steel | |
JP2011131268A (en) | Method for regulating casting slab weight | |
JP5849937B2 (en) | Slab cutting method and slab cutting device in continuous casting machine | |
JP2011212686A (en) | Method for controlling winding temperature of metal strip in hot rolling line | |
KR101400034B1 (en) | Control method for molten steel in tundish | |
JP2009142876A (en) | Method for continuously casting steel | |
JP4474772B2 (en) | Continuous casting method | |
JP6384447B2 (en) | Continuous casting method | |
KR101428305B1 (en) | System and method of feedback control in minimill process | |
KR20160046381A (en) | Method and apparatus for continuous casting | |
TW202023709A (en) | Method of casting cast piece |