CN117463964A - Method for replacing roll box in thin strip casting and rolling process - Google Patents
Method for replacing roll box in thin strip casting and rolling process Download PDFInfo
- Publication number
- CN117463964A CN117463964A CN202311261095.8A CN202311261095A CN117463964A CN 117463964 A CN117463964 A CN 117463964A CN 202311261095 A CN202311261095 A CN 202311261095A CN 117463964 A CN117463964 A CN 117463964A
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- CN
- China
- Prior art keywords
- casting
- baking
- core
- core nozzle
- casting machine
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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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000005266 casting Methods 0.000 title claims abstract description 36
- 238000005096 rolling process Methods 0.000 title abstract description 5
- 238000004088 simulation Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000033764 rhythmic process Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000694 effects Effects 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
Abstract
The invention relates to the technical field of metallurgy, relates to improvement of production rhythm and production safety and stability of ultrathin belts, and in particular relates to a method for replacing a roll box in a thin belt casting and rolling process. The method of the invention comprises the following steps: cleaning a roller box and cleaning a casting machine; confirming the state of equipment; adjusting a core water gap and a side sealing unit; baking the core water gap; confirming equipment parameters; casting machine area simulation, wherein the method divides the steps of adjusting the core nozzle and the side seal unit into: a first substep: using a robot to adjust a core nozzle; a second substep: adjusting a side seal unit, wherein the step of baking the core nozzle is performed between said first sub-step and said second sub-step. The method of the invention obviously shortens the time for replacing the roller box, accelerates the production rhythm of casting and rolling the thin strip, and brings considerable economic benefit.
Description
Technical Field
The invention relates to the technical field of metallurgy, relates to improvement of production rhythm and production safety and stability of ultrathin belts, and in particular relates to a method for replacing a roll box in a thin belt casting and rolling process.
Background
The conventional roll-changing box rear casting machine needs to be provided with a robot for simulation, and whether the equipment state is normal or not is detected through simulation; the core nozzle can be baked after simulation. Since the core nozzle baking process requires not less than 60 minutes, the roll changing box takes 240 minutes in total. The casting machine can not simulate after the core nozzle is baked, the hidden trouble problem of equipment can not be judged, and the production safety and the continuous stability are affected. A pair of core gates is wasted for simulation, with a cost of about 2 ten thousand yuan.
Disclosure of Invention
The casting machine area is simulated after each roll box change of the ultrathin belt, a robot is required to perform conventional simulation, the roll boxes are changed 10 times per month on average, and the process requires the core water gap baking time to be not less than 60 minutes, so that 4 hours are caused each time from the roll box change to the casting production. By optimizing the roll box replacement program and adopting the simulation without a robot, the core water gap is advanced, the roll box replacement time of 60-90 minutes can be saved, and the production efficiency is effectively improved. In addition, the abnormal state of equipment in a casting machine area occurs for many times in the past, but the problem point of equipment cannot be found through simulation in consideration of the fact that a core nozzle is baked, so that uncertainty is brought to production safety and stability.
The invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a method of replacing a roll cassette in a thin strip casting process, the method comprising the steps of:
cleaning a roller box and cleaning a casting machine;
confirming the state of equipment;
adjusting a core water gap and a side sealing unit;
baking the core water gap;
confirming equipment parameters;
the casting machine region is simulated,
the method is characterized in that:
the method divides the steps of adjusting the core nozzle and the side sealing unit into:
a first substep: using a robot to adjust a core nozzle;
a second substep: the side sealing unit is adjusted to be in contact with the inner surface of the side sealing unit,
the step of baking the core nozzle is performed between said first sub-step and said second sub-step.
According to the method of replacing roll cassettes of the present invention, the step of baking the core nozzle is preferably performed before the casting machine region simulation step.
According to the method of replacing a roll cassette of the present invention, preferably, the method further comprises: the side seal units are manually placed onto the side seal holders prior to the caster zone simulation step.
According to the method of replacing a roll cassette of the present invention, preferably, the method further comprises: and manually adding a virtual signal into the casting machine casting automatic setting program to meet casting setting conditions.
According to the method of replacing a roll cassette of the present invention, preferably, the method further comprises: after the automatic setting program is executed, the automatic setting program is interrupted, and the automatic setting program is manually operated in an interface to meet the casting condition.
According to the method of replacing a roll cassette of the present invention, it is preferable that the time of the step of baking the core nozzle is not less than 60 minutes.
Beneficial technical effects
The method of the invention creates the following benefits:
according to the 10 times roller box of single month change, each time saves 1 hour and calculates, 8.3 more molten steel can be poured; according to the yield of 93 percent, the hot coil 791 ton can be produced; calculating 500 yuan per ton of steel, and obtaining 39.55 ten thousand yuan per month of benefit; the annual benefit is 474.6 ten thousand yuan.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The following are embodiments of the present invention, which are described as only a few embodiments of the present invention, and all other embodiments that can be obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
The 60 minutes required to bake the core nozzle is a major factor in the long time to change roll cassettes. According to the invention, the position of the core nozzle of the robot is adjusted in advance through the adjustment step of the decomposing robot, the core nozzle is baked after the adjustment is finished, and then other adjustment works are carried out. After the core nozzle is baked in advance, the robot is required to be not involved in the simulation process of the casting machine.
In the scheme without robot simulation adopted by the invention, the main limiting factors are the problem of program interference between the side sealing unit and the automatic setting process:
(1) Because the side seal unit is to be attached to the end part of the casting roll, if the robot does not have the side seal unit in the simulation process, the side seal unit bracket can touch the end part of the casting roll, and the side seal unit bracket and the chromium layer at the end part of the casting roll are damaged.
(2) In the automatic casting machine casting setting program, the action signal condition of the robot can influence the action flow of other equipment.
For the problem (1), the side sealing unit is manually placed on the side sealing unit bracket before simulation, so that the problem is solved.
For the problem (2), the scheme of the invention satisfies the casting setting condition by manually adding a virtual (false) signal; after the automatic setting program is executed, the automatic setting program is interrupted, and the manual operation is performed in the interface so as to meet the casting condition, thereby solving the problem.
Table 1 comparison of the schedule of the present protocol with the inventive protocol
The foregoing is merely illustrative of the embodiments of this invention and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the invention, and it is intended to cover all modifications and variations as fall within the scope of the invention.
Claims (6)
1. A method of replacing roll cassettes in a strip casting process, the method comprising the steps of:
cleaning a roller box and cleaning a casting machine;
confirming the state of equipment;
adjusting a core water gap and a side sealing unit;
baking the core water gap;
confirming equipment parameters;
the casting machine region is simulated,
the method is characterized in that:
the method divides the steps of adjusting the core nozzle and the side sealing unit into:
a first substep: using a robot to adjust a core nozzle;
a second substep: the side sealing unit is adjusted to be in contact with the inner surface of the side sealing unit,
the step of baking the core nozzle is performed between said first sub-step and said second sub-step.
2. The method of changing a roll cassette according to claim 1, wherein:
the step of baking the core nozzle is performed prior to the casting machine region simulation step.
3. The method of changing a roll cassette according to claim 1, wherein:
the method further comprises:
the side seal units are manually placed onto the side seal holders prior to the caster zone simulation step.
4. The method of changing a roll cassette according to claim 1, wherein:
the method further comprises:
and manually adding a virtual signal into the casting machine casting automatic setting program to meet casting setting conditions.
5. The method of replacing a roll cassette of claim 4, wherein:
the method further comprises:
after the automatic setting program is executed, the automatic setting program is interrupted, and the automatic setting program is manually operated in an interface to meet the casting condition.
6. The method of changing a roll cassette according to claim 1, wherein:
the time of the step of baking the core nozzle is not less than 60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261095.8A CN117463964A (en) | 2023-09-27 | 2023-09-27 | Method for replacing roll box in thin strip casting and rolling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261095.8A CN117463964A (en) | 2023-09-27 | 2023-09-27 | Method for replacing roll box in thin strip casting and rolling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117463964A true CN117463964A (en) | 2024-01-30 |
Family
ID=89626540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311261095.8A Pending CN117463964A (en) | 2023-09-27 | 2023-09-27 | Method for replacing roll box in thin strip casting and rolling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117463964A (en) |
-
2023
- 2023-09-27 CN CN202311261095.8A patent/CN117463964A/en active Pending
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