CN109396374B - Novel slab continuous casting cutting method - Google Patents
Novel slab continuous casting cutting method Download PDFInfo
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- CN109396374B CN109396374B CN201811510797.4A CN201811510797A CN109396374B CN 109396374 B CN109396374 B CN 109396374B CN 201811510797 A CN201811510797 A CN 201811510797A CN 109396374 B CN109396374 B CN 109396374B
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- 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
- B22D11/163—Controlling or regulating processes or operations for cutting cast stock
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
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- Continuous Casting (AREA)
Abstract
The invention discloses a novel slab continuous casting and cutting method, which relates to the technical field of slab continuous casting and cutting methods and comprises the following steps: a. performing primary cutting, namely judging whether the cutting length of the blank in the cutting plan is greater than 6 meters, if so, completing the cutting by the primary cutting, if not, combining the cutting length with the subsequent cutting plan to form a mother blank with the length greater than 6 meters, performing the cutting by the primary cutting, and sending the mother blank into a secondary cutting after the cutting; b. secondary cutting, namely receiving the blank subjected to the primary cutting, judging whether the cutting length of the blank in the cutting plan meets the requirement that the cutting length is more than 2 meters and less than 10 meters, if so, executing an unfinished cutting plan in the primary cutting, and if not, carrying out tertiary cutting; c. and thirdly, cutting, namely receiving the blank subjected to the secondary cutting, judging whether the cutting plan in the secondary cutting is finished or not, and if not, turning to off-line cutting. The method reduces the unplanned rate and the storage period, improves the casting blank receiving rate and saves the cost.
Description
Technical Field
The invention relates to the technical field of slab continuous casting and cutting, in particular to a novel slab continuous casting and cutting method.
Background
In the existing slab continuous casting cutting method, the cutting length of the slab is not set, the slab is cut in sequence according to a production plan, and when a 2-meter or 3-meter short slab plan in the production plan is about to finish production, the rest short slabs cannot normally form a mother slab, so that the short slab waste is caused, the stock rate is increased, and the production cost is improved.
Disclosure of Invention
The invention aims to solve the technical problem that in the existing slab continuous casting cutting method, residual short billets cannot normally form a mother billet, so that short billet waste is caused.
In order to solve the technical problems, the invention provides a novel slab continuous casting cutting method, which comprises the following steps:
a. performing primary cutting, namely judging whether the cutting length of the blank in the cutting plan is greater than 6 meters, if so, completing the cutting by the primary cutting, if not, combining the cutting length with the subsequent cutting plan to form a mother blank with the length greater than 6 meters, performing the cutting by the primary cutting, and sending the mother blank into a secondary cutting after the cutting;
b. secondary cutting, namely receiving the blank subjected to the primary cutting, judging whether the cutting length of the blank in the cutting plan meets the requirement that the cutting length is more than 2 meters and less than 10 meters, if so, executing an unfinished cutting plan in the primary cutting, and if not, carrying out tertiary cutting;
c. and thirdly, cutting, namely receiving the blank subjected to the secondary cutting, judging whether the cutting plan in the secondary cutting is finished, and if the cutting plan is not finished, turning to off-line cutting to finish the cutting plan.
The technical effects are as follows: the cutting method comprises the steps of completing a cutting plan by three times of cutting, limiting the cutting length to be more than 6 meters in one time of cutting, namely, not completing a plan for cutting a short blank in one time of cutting, limiting the cutting length to be more than 2 meters and less than 10 meters in two times of cutting, namely, completing a plan for cutting the short blank which is not completed in one time of cutting in two times of cutting, completing the cutting of a plurality of short blanks on one long blank body at one time, enabling the plurality of short blanks to form a long blank body which is more than 6 meters, then performing centralized cutting in two times of cutting, greatly reducing the quantity of the remaining short blanks which do not accord with a production plan, reducing the stock ratio, saving the cost, judging whether the two times of cutting complete all cutting plans or not by three times of cutting, if the cutting plan is not completed due to the failure of the two times of cutting, comparing and judging the three, the method successfully solves the problems of long unplanned billet cutting period and unplanned billet inventory period caused by planning arrangement and equipment in the production process, arranges secondary cutting, successfully avoids the difficulty that the production cannot be carried out because only one or two short fixed-size billets and all cutting capacity are limited, and improves the planning completion rate. And the third cutting is performed, and an off-line cutting plan is issued, so that the unplanned difficulty of system misjudgment caused by incomplete secondary cutting due to equipment reasons is solved.
The technical scheme of the invention is further defined as follows: the off-line cutting is manual cutting.
And further, in the step b, correspondingly marking the blank according to the cutting plan during secondary cutting, and in the step c, judging whether the marking is finished according to the corresponding cutting plan or not during tertiary cutting, and if not, turning to off-line cutting to finish the cutting plan.
In the novel continuous slab casting and cutting method, in the step b, the total length of the cut blank is less than 12 meters.
The invention has the beneficial effects that:
(1) the third cutting judges whether the mark completes the corresponding cutting plan, if not, the cutting plan is switched to off-line cutting to complete the cutting plan, thereby solving the unplanned difficulty of system misjudgment caused by incomplete secondary cutting due to equipment reasons;
(2) the invention limits the total length of the cutting blank for secondary cutting to be less than 12 meters, reduces the pressure of the secondary cutting and reduces the generation of failure rate.
Detailed Description
Example (b): a novel slab continuous casting cutting method comprises the following steps:
a. performing primary cutting, namely judging whether the cutting length of the blank in the cutting plan is greater than 6 meters, if so, completing the cutting by the primary cutting, if not, combining the cutting length with the subsequent cutting plan to form a mother blank with the length greater than 6 meters, performing the cutting by the primary cutting, and sending the mother blank into a secondary cutting after the cutting;
b. secondary cutting, namely receiving the blank subjected to the primary cutting, judging whether the cutting length of the blank in a cutting plan is more than 2 meters and less than 10 meters, and the total length of the cut blank is less than 12 meters, if so, executing an unfinished cutting plan in the primary cutting, and if not, performing tertiary cutting;
c. and thirdly, cutting, namely receiving the blank subjected to the secondary cutting, judging whether the cutting plan in the secondary cutting is finished, if not, turning to off-line cutting to finish the cutting plan, wherein the off-line cutting is manual cutting.
And in the step b, correspondingly marking the blank according to the cutting plan during secondary cutting, and in the step c, judging whether the marking is finished according to the corresponding cutting plan or not during tertiary cutting, and if not, turning to off-line cutting to finish the cutting plan.
The cutting method comprises three times of cutting to complete cutting plan, one time of cutting to limit the cutting length to be more than 6 m, i.e. the plan for cutting the short billet is not completed in a first cut, a second cut defining a cut length greater than 2 meters and less than 10 meters, namely, the plan of cutting the short billets which is not finished in the primary cutting can be finished in the secondary cutting, the cutting of a plurality of short billets can be finished on one long billet at one time, so that a plurality of short billets are cut in a centralized way, the quantity of the remaining short billets which do not accord with the production plan is reduced to a greater extent, the stock rate is reduced, the cost is saved, in addition, the third cutting is used for judging whether the second cutting finishes all cutting plans, if the cutting plan is not finished due to the secondary cutting fault, the tertiary cutting can be compared with the cutting plan for judgment, an off-line cutting plan is generated, and an operator is informed to perform off-line cutting so as to finish all the cutting plans.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (3)
1. A novel slab continuous casting cutting method is characterized in that: the method comprises the following steps:
a. performing primary cutting, namely judging whether the cutting length of the blank in the cutting plan is greater than 6 meters, if so, completing the cutting by the primary cutting, if not, combining the cutting length with the subsequent cutting plan to form a mother blank with the length greater than 6 meters, performing the cutting by the primary cutting, and sending the mother blank into a secondary cutting after the cutting;
b. secondary cutting, namely receiving the blank subjected to the primary cutting, judging whether the cutting length of the blank in the cutting plan meets the requirement that the cutting length is more than 2 meters and less than 10 meters, if so, executing an unfinished cutting plan in the primary cutting, and if not, carrying out tertiary cutting;
c. third cutting, receiving the green body subjected to the second cutting, judging whether a cutting plan in the second cutting is finished, and if the cutting plan is not finished, turning to off-line cutting to finish the cutting plan;
and in the step b, correspondingly marking the blank according to the cutting plan during secondary cutting, and in the step c, judging whether the marking is finished according to the corresponding cutting plan or not during tertiary cutting, and if not, turning to off-line cutting to finish the cutting plan.
2. The novel slab continuous casting cutting method according to claim 1, characterized in that: the off-line cutting is manual cutting.
3. The novel slab continuous casting cutting method according to claim 1, characterized in that: in the step b, the total length of the cut blank is less than 12 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510797.4A CN109396374B (en) | 2018-12-11 | 2018-12-11 | Novel slab continuous casting cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510797.4A CN109396374B (en) | 2018-12-11 | 2018-12-11 | Novel slab continuous casting cutting method |
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| Publication Number | Publication Date |
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| CN109396374A CN109396374A (en) | 2019-03-01 |
| CN109396374B true CN109396374B (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811510797.4A Active CN109396374B (en) | 2018-12-11 | 2018-12-11 | Novel slab continuous casting cutting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111230408A (en) * | 2019-12-31 | 2020-06-05 | 江苏瑞强能源有限公司 | Continuous forming preparation method and system for anti-blocking block |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0635034B2 (en) * | 1988-12-06 | 1994-05-11 | 新日本製鐵株式会社 | Cutting length control method for continuous casting equipment |
| CN102169564A (en) * | 2011-05-04 | 2011-08-31 | 南京钢铁股份有限公司 | Steel plate production method based on manufacturing execution system (MES) management system |
| CN105689672B (en) * | 2014-11-27 | 2018-07-27 | 上海梅山钢铁股份有限公司 | A kind of interactive mode continuous casting billet optimizing incision control method |
| CN106270432A (en) * | 2015-05-27 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of slab cutting optimization method based on the conversion of molten steel amount and control system thereof |
| CN106269894B (en) * | 2015-05-27 | 2017-12-05 | 鞍钢股份有限公司 | Control method for continuous casting automatic predetermined slab plan |
| CN108205743A (en) * | 2016-12-16 | 2018-06-26 | 江苏金恒信息科技股份有限公司 | Dynamic slab cuts design method and system |
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2018
- 2018-12-11 CN CN201811510797.4A patent/CN109396374B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 板坯动态切割技术的应用;孙茂杰;《现代冶金》;20151015;第43卷(第05期);40-41 * |
| 板坯连铸切割长度优化系统;魏巍巍;《天津冶金》;20140815(第S1期);84-87 * |
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| CN109396374A (en) | 2019-03-01 |
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