CN114905019B - Cutting machine gun speed intelligent control method based on online blank temperature detection - Google Patents
Cutting machine gun speed intelligent control method based on online blank temperature detection Download PDFInfo
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- 238000005520 cutting process Methods 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 73
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 20
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 25
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 4
- 238000009749 continuous casting Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to an intelligent control method for the gun speed of a cutting machine based on-line blank temperature detection, which comprises the following steps: step 1: actually measuring the surface temperature distribution characteristics of the casting blank under different drawing speeds and different working conditions, wherein the surface temperature distribution characteristics of the casting blank are used as basic basis for setting the starting cutting speed and the cruising gun speed of the temperature cutting edge of the casting blank under different working conditions; step 2: determining the cutting cruising gun speed of casting blanks with different blank temperatures; step 3: setting a cutting machine gun speed intelligent control system based on a temperature measurement system; step 4: after the pre-pressing signal of the cutting machine is received, scanning temperature measurement data once by taking 500ms as a period; step 5: according to the temperature measurement data, matching and outputting corresponding cruising gun speed, and according to the determined cruising gun speed, calling corresponding starting gun speed; step 6: and (5) ending the intelligent control flow of the gun speed of the cutting machine.
Description
Technical Field
The invention relates to a control method, in particular to an intelligent control method for gun speed of a cutting machine based on online blank temperature detection, and belongs to the technical field of ferrous metallurgy continuous casting.
Background
Most large slab continuous casting machines adopt a flame cutting machine to cut casting blanks into fixed-length slabs on line. The basic principle of the flame cutting machine is as follows: the surface of the slab is premelted by the preheating flame, the high-pressure cutting oxygen jet flow continuously melts the steel billet and blows molten steel away to form a slit to cut off the casting blank. The flame cutting machine has the advantages that the flame cutting machine is not limited by the size of a casting blank, and can cut a large-sized casting blank on line; the shape of the cut casting blank is regular and has no deformation. In the current continuous casting actual production process, the gun speed of a cutting machine is mostly controlled by adopting a fixed gun speed, and when the continuous casting process (a drawing speed and a secondary cooling process) changes, particularly when typical abnormal working conditions (such as casting start, quick-change tundish, final casting, abnormal shutdown and the like) are adopted, the surface temperature of casting blanks is greatly changed (600-1150 ℃), the casting blanks with different surface temperatures are subjected to flame cutting at the fixed gun speed, so that the problems of continuous cutting of the casting blanks with too high gun speed of the low-temperature casting blanks, low yield of large metal in the cutting seam due to too slow gun speed of the high-temperature casting blanks occur.
Through the search of the inventor, the related patents and documents of the continuous casting cutting disclosed at present are focused on the technical development of the manufacture of the cutting machine, the optimization of the form of a cutting nozzle and the like, and the patents or reports on the intelligent control of the gun speed of the cutting machine by using on-line temperature detection as a basis are implemented.
In view of the problems existing in the slab flame cutting process, the continuous casting process is urgently required to have a simple, stable and reliable method for adjusting and determining the proper cutting gun speed in real time according to the surface temperatures of casting blanks under different working conditions, the purposes of stable cutting-off of the casting blanks, reasonable cutting seam, energy conservation and consumption reduction are achieved, all slab continuous casting flame cutting machines at home and abroad are provided with no gun speed on-line real-time control devices, and all gun speeds are fixed, so that a new scheme is urgently required to solve the technical problems.
Disclosure of Invention
The invention provides an intelligent control method for the gun speed of a cutting machine based on online blank temperature detection, which aims at the problems in the prior art. The abnormal working condition position output by the casting blank tracking value is not relied on any more or the surface temperature of the casting blank is judged manually, so that the aim of intelligent control of the cutting gun speed is fulfilled.
In order to achieve the above purpose, the technical scheme of the invention is as follows, a cutting machine gun speed intelligent control method based on-line blank temperature detection, the method comprises the following steps:
Step 1: actually measuring the surface temperature distribution characteristics of the casting blank under different drawing speeds and different working conditions, wherein the surface temperature distribution characteristics of the casting blank are used as basic basis for setting the starting cutting speed and the cruising gun speed of the temperature cutting edge of the casting blank under different working conditions;
1.1, measuring the surface temperature of a casting blank at different pull-up speed stages in normal production at a cutting origin;
1.2, stopping the casting blank under three different working conditions of quick-changing tundish, new tundish casting start and the like in the cutting origin measuring injection;
1.3 measuring the temperature of two different points of the casting blank at the cutting origin by taking the center line of the casting blank as a reference according to the interval of 100mm-200 mm.
Step 2: determining the cutting cruising gun speed of casting blanks with different blank temperatures;
2.1 basic process data determination of cutting: cutting coal and oxygen, wherein the oxygen pressure is 1.0-1.3MPa, the oxygen flow is 300-450L/min, the gas pressure is 0.7-0.9MPa, the gas flow is 30-50L/min, and the maximum cutting gun speed is 400-450mm/min;
2.2 cruise gun speed test at different blank temperatures (different pull speeds and typical working conditions). 3 test gun speeds are preset under different working conditions, 10 tests are respectively carried out, and the center line temperature, the slit width, the molten steel length and the cutting integrity of the casting blank are measured;
2.3, fitting an optimal casting blank surface temperature-cruising gun speed curve according to an actual measurement result;
2.4 determining the starting speed under the condition of different cruising gun speeds (the casting blank with different surface temperatures has small temperature gradient in the width direction of the position more than 100 from the edge, and the temperature is within 20 ℃ but the temperature is reduced by more than 50 ℃ within the range of 100mm from the edge, and the cutting speed lower than the cruising speed is required to be set in the range to ensure the complete cutting of the blank);
2.4.1 presetting 3 proportional starting gun speeds under different cruising cutting speed conditions, respectively carrying out 10 tests, measuring the cutting width and recording the cutting integrity;
2.4.2 starting gun speed test technological parameters comprise three key technological parameters of edge preheating time length, starting slit width and starting gun flying times.
Step 3: setting a cutting machine gun speed intelligent control system based on a temperature measurement system;
3.1, arranging a group of infrared continuous temperature measuring devices on a frame of the cutting machine, wherein the devices are positioned on the width central line of the cutting machine, and can accurately measure the central temperature of a plate blank at the position of the cutting machine in real time;
3.2, the temperature measurement data is connected into a cutting machine PLC;
3.3, storing the gun speed control curve parameters of the slab flame cutting machine into a data block of the PLC according to the test regression data result of the step 2;
Step4: after the pre-pressing signal of the cutting machine is received, scanning temperature measurement data once by taking 500ms as a period;
Step 5: according to the temperature measurement data, matching and outputting corresponding cruising gun speed, and according to the determined cruising gun speed, calling corresponding starting gun speed;
Step 6: and (5) ending the intelligent control flow of the gun speed of the cutting machine.
Compared with the prior art, the method has the advantages that the gun speed of the cutting machine is dynamically adjusted in real time through the detection of the online temperature, so that the problems of high metal yield, low energy consumption and the like caused by the fact that the gun speed of the low-temperature casting blank is too fast and continuous and the gun speed of the high-temperature casting blank is too slow in slotting are solved, and the casting blanks with different surface temperatures are subjected to flame cutting at fixed gun speeds are avoided. In the experimental stage, the cutting quality of the plate blank is greatly improved, the cutting seam is reduced from the original average 8mm to the average 5mm, the loss of cutting metal is reduced by 38%, the cutting times are reduced by 90% in months, and the flying gun times are reduced by 95%.
Drawings
FIG. 1 is a fitted optimum casting blank surface temperature-cruise lance speed curve;
FIG. 2 is a flow chart of a method for intelligently controlling the gun speed of a cutting machine based on-line blank temperature detection.
Detailed Description
In order to enhance the understanding of the present invention, the present embodiment will be described in detail with reference to the accompanying drawings.
Example 1: referring to fig. 1 and 2, an intelligent control method for gun speed of a cutting machine based on-line blank temperature detection comprises the following steps:
Step 1: actually measuring the surface temperature distribution characteristics of the casting blank under different drawing speeds and different working conditions, wherein the surface temperature distribution characteristics of the casting blank are used as basic basis for setting the starting cutting speed and the cruising gun speed of the temperature cutting edge of the casting blank under different working conditions;
1.1, measuring the surface temperature of a casting blank at different pull-up speed stages in normal production at a cutting origin;
1.2, stopping the casting blank under three different working conditions of quick-changing tundish, new tundish casting start and the like in the cutting origin measuring injection;
1.3 measuring the temperature of two different points of the casting blank at the cutting origin by taking the center line of the casting blank as a reference according to the interval of 100mm-200 mm.
Step 2: determining the cutting cruising gun speed of casting blanks with different blank temperatures;
2.1 basic process data determination of cutting: cutting coal and oxygen, wherein the oxygen pressure is 1.0-1.3MPa, the oxygen flow is 300-450L/min, the gas pressure is 0.7-0.9MPa, the gas flow is 30-50L/min, and the maximum cutting gun speed is 400-450mm/min;
2.2 cruise gun speed test at different blank temperatures (different pull speeds and typical working conditions). 3 test gun speeds are preset under different working conditions, 10 tests are respectively carried out, and the center line temperature, the slit width, the molten steel length and the cutting integrity of the casting blank are measured;
2.3, fitting an optimal casting blank surface temperature-cruising gun speed curve according to an actual measurement result;
2.4 determining the starting speed under the condition of different cruising gun speeds (the casting blank with different surface temperatures has small temperature gradient in the width direction of the position more than 100 from the edge, and the temperature is within 20 ℃ but the temperature is reduced by more than 50 ℃ within the range of 100mm from the edge, and the cutting speed lower than the cruising speed is required to be set in the range to ensure the complete cutting of the blank);
2.4.1 presetting 3 proportional starting gun speeds under different cruising cutting speed conditions, respectively carrying out 10 tests, measuring the cutting width and recording the cutting integrity;
2.4.2 starting gun speed test technological parameters comprise three key technological parameters of edge preheating time length, starting slit width and starting gun flying times.
Step 3: setting a cutting machine gun speed intelligent control system based on a temperature measurement system;
3.1, arranging a group of infrared continuous temperature measuring devices on a frame of the cutting machine, wherein the devices are positioned on the width central line of the cutting machine, and can accurately measure the central temperature of a plate blank at the position of the cutting machine in real time;
3.2, the temperature measurement data is connected into a cutting machine PLC;
And 3.3, storing the gun speed control curve parameters of the slab flame cutting machine into the data blocks of the PLC according to the test regression data result in the step 2.
Step4: after the pre-pressing signal of the cutting machine is received, scanning temperature measurement data once by taking 500ms as a period;
step 5: and according to the temperature measurement data, matching and outputting the corresponding cruising gun speed, and according to the determined cruising gun speed, calling the corresponding starting gun speed.
Step 6: and (5) ending the intelligent control flow of the gun speed of the cutting machine.
Specific examples: referring to fig. 1-2, a factory adopts coal-oxygen flame to cut a slab, the maximum width of the slab is 1680mm, and according to the technical scheme, the intelligent control method of the gun speed of the cutting machine based on-line slab temperature detection is adopted, and the specific implementation is as follows:
Step 1: actually measuring the surface temperature distribution characteristics of the casting blank under different drawing speeds and different working conditions, wherein the surface temperature distribution characteristics of the casting blank are used as basic basis for setting the starting cutting speed and the cruising gun speed of the temperature cutting edge of the casting blank under different working conditions (see table 1)
1.1 Measuring the surface temperature of a casting blank at different pull-up speed stages in normal production at a cutting origin,
1.2, Stopping the casting blank under three different working conditions of quick-changing tundish and new tundish casting in the cutting origin measuring injection,
1.3 Measuring the temperature of two different points of the casting blank at the cutting origin by taking the center line of the casting blank as a reference according to the interval of 100mm-200 mm.
TABLE 1 casting blank surface temperature distribution characteristics under different drawing speeds and different working conditions
Step 2, determining the cutting cruising gun speed of the casting blanks with different blank temperatures (see table 2);
2.1 basic process data determination of cutting: cutting coal and oxygen, wherein the oxygen pressure is 1.2MPa, the oxygen flow is 400L/min, the gas pressure is 0.8MPa, the gas flow is 40L/min, and the maximum cutting gun speed is 420mm/min
2.2 Cruise gun speed test at different blank temperatures (different pull speeds and typical working conditions). 3 test gun speeds are preset under different working conditions, 10 tests are respectively carried out, and the center line temperature, the slit width, the molten steel length and the cutting integrity of the casting blank are measured.
TABLE (2) cruise gun speed test for different blank temperatures (different pull rates, typical operating conditions)
And 2.3, fitting an optimal casting blank surface temperature-cruising gun speed curve according to an actual measurement result. See fig. 1.
2.4 Determination of the starting speed under different cruising speeds (the casting blank with different surface temperatures has a small temperature gradient in the width direction at a distance of 100 or more from the edge, both within 20 ℃, but the temperature drops by more than 50 ℃ within 100mm from the edge, it is necessary to set a cutting speed lower than the cruising speed within this range to ensure complete cutting of the blank)
2.4.1 Different cruise cutting conditions preset 3 proportional rifle speeds were tested 10 times respectively, the slit width was measured, and the cutting integrity was recorded. (see Table 3)
Table 3 different cruise cut conditions preset 3 proportional rifle speeds were each recorded for 10 tests
2.4.2 Starting gun speed test technological parameters comprise three key technological parameters of edge preheating time length, starting slit width and starting gun flying times.
Step 3, setting a cutting machine gun speed intelligent control system based on a temperature measurement system;
3.1, a group of infrared continuous temperature measuring devices are arranged on the frame of the cutting machine, and the devices are positioned on the central line of the cutting machine, so that the central temperature of the slab at the position of the cutting machine can be accurately measured in real time.
And 3.2, the temperature measurement data is accessed into a cutting machine PLC.
And 3.3, storing the gun speed control curve parameters of the slab flame cutting machine into the data blocks of the PLC according to the test regression data result in the step 2.
Step4: and after the pre-pressing signal of the cutting machine is received, scanning the temperature measurement data once by taking 500ms as a period.
And 5, according to the temperature measurement data, matching and outputting corresponding cruising gun speed, and according to the determined cruising gun speed, adjusting corresponding starting gun speed.
And 6, finishing the intelligent control flow of the gun speed of the cutting machine.
It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and equivalent changes or substitutions made on the basis of the above-mentioned technical solutions fall within the scope of the present invention as defined in the claims.
Claims (1)
1. The intelligent control method for the gun speed of the cutting machine based on-line blank temperature detection is characterized by comprising the following steps of:
Step 1: actually measuring the surface temperature distribution characteristics of the casting blank under different drawing speeds and different working conditions, wherein the surface temperature distribution characteristics of the casting blank are used as basic basis for setting the starting cutting speed and the cruising gun speed of the temperature cutting edge of the casting blank under different working conditions;
step 2: determining the cutting cruising gun speed of casting blanks with different blank temperatures;
step 3: setting a cutting machine gun speed intelligent control system based on a temperature measurement system;
Step4: after the pre-pressing signal of the cutting machine is received, scanning temperature measurement data once by taking 500ms as a period;
Step 5: according to the temperature measurement data, matching and outputting corresponding cruising gun speed, and according to the determined cruising gun speed, calling corresponding starting gun speed;
Step 6: ending the intelligent control flow of the gun speed of the cutting machine;
Wherein, step 1 is specifically as follows:
1.1, measuring the surface temperature of a casting blank at different pull-up speed stages in normal production at a cutting origin;
1.2, stopping the machine in the measurement of the cutting origin, quickly changing a tundish and casting the new tundish to obtain the surface temperature of the casting blank under three different working conditions;
1.3, measuring the temperature of two different points of the casting blank at the cutting origin by taking the center line of the casting blank as a reference according to the interval of 100mm-200 mm;
wherein, step 2: the cutting cruise gun speed of the casting blanks with different blank temperatures is determined, and the method specifically comprises the following steps:
2.1 basic process data determination of cutting: cutting coal and oxygen, wherein the oxygen pressure is 1.0-1.3MPa, the oxygen flow is 300-450L/min, the gas pressure is 0.7-0.9MPa, the gas flow is 30-50L/min, and the maximum cutting gun speed is 400-450mm/min;
2.2 Testing the cruising gun speeds of different blank temperatures, presetting 3 testing gun speeds under different working conditions, respectively performing 10 times of tests, measuring the central line temperature of a casting blank, the slit width, the molten steel length and observing the cutting integrity;
2.3 Fitting an optimal casting blank surface temperature-cruising gun speed curve according to an actual measurement result;
2.4 The starting speed is determined under different cruising gun speed conditions,
Wherein, the starting speed of the rifle under the condition of different cruising speeds in the step 2.4 is determined, specifically as follows,
2.4.1 The method comprises the steps of respectively testing 10 times under different cruise cutting speed conditions by presetting 3 proportional starting gun speeds, measuring the width of a cutting seam and recording the cutting integrity;
2.4.2 starting gun speed test technological parameters comprise three key technological parameters of edge preheating time length, starting slit width and starting gun flying times,
Wherein, step 3: cutting machine gun speed intelligent control system sets up based on temperature measurement system, specifically as follows:
3.1, arranging a group of infrared continuous temperature measuring devices on a frame of the cutting machine, wherein the devices are positioned on the width central line of the cutting machine, and can accurately measure the central temperature of a plate blank at the position of the cutting machine in real time;
3.2, the temperature measurement data is connected into a cutting machine PLC;
3.3 And (3) according to the test regression data result of the step (2), storing the gun speed control curve parameters of the slab flame cutting machine into a data block of the PLC.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922079A (en) * | 2012-10-23 | 2013-02-13 | 秦皇岛首秦金属材料有限公司 | Method for quick opening large-chamfer casting blank during cutting |
| CN104907710A (en) * | 2015-06-19 | 2015-09-16 | 中冶连铸技术工程有限责任公司 | Method and device for cutting casting blank through laser |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59150651A (en) * | 1983-02-10 | 1984-08-28 | Toshiba Corp | Automatic positioning method of billet cutter |
| DE3721685A1 (en) * | 1987-07-01 | 1989-01-12 | Aute Autogene Tech | BANDCASTING FLAME-CUTTING MACHINE IN CONTINUOUS CASTING PLANTS |
| JP2001259874A (en) * | 2000-01-11 | 2001-09-25 | Hitachi Cable Ltd | Cutting method |
| JP2003019546A (en) * | 2001-07-06 | 2003-01-21 | Kawasaki Steel Corp | Method for preventing warpage of continuously casting slab |
| CN201253726Y (en) * | 2008-08-25 | 2009-06-10 | 中冶宝钢技术服务有限公司 | Gun head apparatus of flame cutting machine |
| CN201432156Y (en) * | 2009-06-05 | 2010-03-31 | 山东省新纪元冶金设备有限公司 | Round-based automatic flame cutting device |
| CN202427911U (en) * | 2011-12-27 | 2012-09-12 | 宝山钢铁股份有限公司 | Adjustable continuous casting online nonlinear cutting device for plate blanks |
| CN202779670U (en) * | 2012-08-01 | 2013-03-13 | 河北钢铁股份有限公司唐山分公司 | Improved flame cutting gun nozzle |
| CN102825360B (en) * | 2012-09-20 | 2014-07-02 | 石家庄华海冶金科技有限公司 | Continuous cast flame cutting machine edge detection control method |
| CN204639613U (en) * | 2015-06-04 | 2015-09-16 | 重庆钢铁(集团)有限责任公司 | A kind of strand sizing cutting device |
| CN206122863U (en) * | 2016-09-26 | 2017-04-26 | 上海新中冶金设备厂 | Continuous casting slab arc cutting machine |
| JP6899683B2 (en) * | 2017-03-30 | 2021-07-07 | 日酸Ｔａｎａｋａ株式会社 | Gas cutting device |
| CN108555417A (en) * | 2018-06-15 | 2018-09-21 | 北京风华工具厂 | Flame cutting machine transmission mechanism |
| CN108788056A (en) * | 2018-08-24 | 2018-11-13 | 中冶赛迪技术研究中心有限公司 | A kind of determination method and system of continuous casting flame-cutting cut quality |
| CN211477655U (en) * | 2019-10-30 | 2020-09-11 | 德龙钢铁有限公司 | Online sampling device of slab bight appearance |
| CN111001894A (en) * | 2019-11-11 | 2020-04-14 | 苏德祥 | Steel energy-saving cutting method capable of judging cutting quality |
-
2021
- 2021-02-10 CN CN202110182920.XA patent/CN114905019B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922079A (en) * | 2012-10-23 | 2013-02-13 | 秦皇岛首秦金属材料有限公司 | Method for quick opening large-chamfer casting blank during cutting |
| CN104907710A (en) * | 2015-06-19 | 2015-09-16 | 中冶连铸技术工程有限责任公司 | Method and device for cutting casting blank through laser |
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