CN108665780B - Casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device - Google Patents
Casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device Download PDFInfo
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- CN108665780B CN108665780B CN201810218095.2A CN201810218095A CN108665780B CN 108665780 B CN108665780 B CN 108665780B CN 201810218095 A CN201810218095 A CN 201810218095A CN 108665780 B CN108665780 B CN 108665780B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 54
- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 230000008878 coupling Effects 0.000 title claims abstract description 37
- 238000010168 coupling process Methods 0.000 title claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000002474 experimental method Methods 0.000 title claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
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- 238000012545 processing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 238000004088 simulation Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005098 hot rolling Methods 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 241000227287 Elliottia pyroliflora Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013075 data extraction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
Abstract
The invention relates to a multi-field coupling parameter comprehensive experiment testing device for casting-rolling production process parameters, which comprises a speed reducer, a motor, an installation table, a box type bottom table, a feeding hopper, a frame, a bearing seat, a diaphragm coupling, a receiving hopper, a graduated scale, a coupling, a universal joint coupling, a stepped shaft, a shaft sleeve, a core rod, a bearing, a propelling hand wheel, a propelling screw and a propelling screw gland; the output end of the motor is connected with the input end of the speed reducer through a diaphragm coupler, two output ends of the speed reducer are respectively connected with two universal joint couplers through couplers, and the other end of each universal joint coupler is connected with the input end of the stepped shaft; the stepped shaft is connected with a bearing seat through a bearing, and the bearing seat is fixed on the inner wall of the frame; the shaft sleeve as a roller is sleeved on the stepped shaft. The advantages are that: the method has strong practicability, can reduce the rolling process under three environments of hot rolling, warm rolling and cast rolling by heating/freezing simulation of the core rod, and is beneficial to test operation and data acquisition.
Description
Technical Field
The invention belongs to the technical field of metallurgical rolling, and particularly relates to a multi-field coupling parameter comprehensive experiment testing device for casting-rolling production process parameters.
Background
At present, the requirement of the industrial world on the quality precision of cast-rolled plate strip products is higher and higher, and the scientific world is not deep enough to research the mechanism in the plate strip cast-rolling process. In the production of cast rolling, a casting roll is one of important core components. The casting roller consists of a roller sleeve and a roller core. In the casting and rolling process, due to the water cooling effect, the roller sleeve is subjected to unstable thermal stress, and simultaneously contacts with a metal solution in the rolling process and is subjected to the casting and rolling effect, so that the defects of fatigue cracks, heavy skin and the like are finally formed on the surface of the roller sleeve. Not only affects the service life of the steel plate, but also directly affects the quality of the plate and the strip. Whether the casting and rolling production is successful or not depends on the cooling capacity of the roller core to a great extent, and the cooling system ensures that heat transmitted by the roller sleeve of the casting roller is uniformly and timely discharged, so that the roller shape can be effectively maintained, the service life of the roller sleeve is prolonged, and the product quality is ensured. The performance of a bearing, which is one of the key components of a rotating machine, directly affects the performance and life of the rotating machine. For the cast-rolling bearing in the temperature gradient change, the research on the temperature gradient, the stress strain distribution and the vibration of the cast-rolling bearing has important research significance for the research on the lubricating performance, the bearing performance and the service life of the cast-rolling bearing. The experimental test system is used for researching the influence rule of parameters such as casting and rolling speed, pouring temperature, copper bush thickness and the like on a molten pool flow field, a casting and rolling temperature field and the like. The obtained test data are analyzed and summarized by combining simulation and process tests, and useful suggestions and improvement methods for optimizing the roll shape of the casting roll, selecting the material of a roll sleeve, optimizing a cooling system, matching the casting rolling speed and the like are provided. And a basis and a guidance are provided for the improvement of casting and rolling equipment and a casting and rolling scheme and the formulation of a forming process in the future. Therefore, the defects of the cast-rolling plate blank can be greatly reduced, and the cast-rolling plate blank with smooth surface and good quality can be produced.
In the prior art, a device designed by a casting and rolling experiment test system is single, or the structure is too complex, the energy consumption is large, and the device has limitations. The data extraction in the face of complex production environment has inconvenience and uncertainty. And no existing test device is used for measurement aiming at extraction of experimental data. If the patent with the patent application number of 201110138257.X is single in test function, the thermal fatigue life of the working roll is tested by adopting a thermal/force simulation testing machine to imitate the casting and rolling working condition, the technology is not real rolling mill operation, and the difference exists between the technology and the actual working condition.
And the like, the work and the test can be realized by the experimental test system, and a certain test process can be selectively realized, so that the switching test simulation of multiple working conditions/multiple rolling mills is really realized. Therefore, the set of test system is designed to truly simulate the working condition environment and the casting and rolling process in the casting and rolling process.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a multi-field coupling parameter comprehensive experimental testing device for casting-rolling production process parameters, which can simulate the actual working condition, vividly and vividly show the working principle and the working process of two-roll casting-rolling and is beneficial to the operation of tests and the acquisition of data.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device adopts a horizontal rotor structure and comprises a speed reducer, a motor, an installation table, a box type bottom table, a feed hopper, a frame, a bearing seat, a diaphragm coupling, a receiving hopper, a graduated scale, a coupling, a universal joint coupling, a stepped shaft, a shaft sleeve, a core rod, a bearing, a propelling hand wheel, a propelling screw and a propelling screw gland;
the mounting table is provided with a motor and a speed reducer, the output end of the motor is connected with the input end of the speed reducer through a diaphragm coupling, two output ends of the speed reducer are respectively connected with two universal joint couplers through couplings, and the other end of each universal joint coupler is connected with the input end of a stepped shaft; the stepped shaft is connected with a bearing seat through a bearing, and the bearing seat is fixed on the inner wall of the frame; a shaft sleeve as a roller is sleeved on the stepped shaft; a core rod is arranged at the core part of the stepped shaft; the energy exchange among the core rod, the stepped shaft and the roller sleeve is realized by heating or cooling the core rod;
the frame is fixed on the box-type base platform, and the box-type base platform is fixed on the mounting platform; a feed hopper is fixed on the rack through a feed hopper support; the receiving hopper is arranged at the lower part of the mounting table; the graduated scale is arranged on the side surface of the rack, and the center of the connecting line of the two stepped shafts is convenient for observing and adjusting the distance between the two stepped shafts;
one end of a propelling screw penetrates through the rack and is connected with a propelling screw gland and a fixing device, the propelling screw gland is fixed on the rack, the fixing device is fixed with the bearing seat, and the other end of the propelling screw is provided with a propelling hand wheel for adjusting the distance between the two rollers;
thermocouple probes or strain gauges are uniformly distributed outside the shaft sleeve.
The shaft sleeve is made of copper.
And a bearing gland is arranged on the outer ring of the bearing.
The universal joint coupler is provided with a universal joint coupler protective cover.
And a diaphragm coupling protective cover is fixed outside the diaphragm coupling.
The bearing seat is arranged on the upper surface of a bearing seat bottom plate, a hole is formed in the bearing seat bottom plate, the bearing seat bottom plate is fixed on the box-type bottom table, and the side face of the bearing seat bottom plate is embedded in the rack.
The bottom surface of the mounting table is provided with a foundation bolt hole.
Compared with the prior art, the invention has the beneficial effects that:
the device has strong practicability and wide applicability, and can reduce the rolling processes in three environments of hot rolling, warm rolling and cast rolling through heating/freezing simulation of the core rod; the method has the advantages of accurately simulating the working principle and the working process of the two-roll casting and rolling, and facilitating the operation of the test and the data acquisition. The invention simulates various rolling conditions by changing the temperature of the core rod, has convenient and labor-saving use, convenient operation and accurate measurement data, and can simulate the casting and rolling process. The stepped shaft is embedded with a core rod and sleeved with a roller sleeve, the roller sleeve is respectively connected with a telescopic universal joint coupler, and the gap distance between two rollers is adjusted by rotating a propelling hand wheel. The arrangement of the receiving hopper can facilitate the smooth discharge of rolled materials. One experimental rolling mill is used for meeting the rolling experimental requirements under three modes of hot rolling, warm rolling and cast rolling, and meanwhile, comprehensive experimental data acquisition of various production process parameters and multi-field coupling parameters can be carried out. And the installation and the disassembly are convenient, the device is simple and easy, and the cost is low.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a cross-sectional view taken along line a-a of fig. 1.
In the figure: 1-universal joint coupler shield 2-reducer 3-motor 4-mounting table 5-box type bottom table 6-feed hopper 7-feed hopper support 8-frame 9-bearing seat bottom plate 10-bearing seat 11-diaphragm coupler 12-receiving hopper 13-graduated scale 14-diaphragm coupler shield 15-coupler 16-universal joint coupler 17-shaft sleeve 18-stepped shaft 19-core rod 20-bearing gland 21-locking nut 22-bearing 23-limit bolt 24-pushing hand wheel 25-pushing screw 26-pushing screw gland 27-fixing device.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
Referring to fig. 1-4, a casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device adopts a horizontal rotor structure and comprises a speed reducer 2, a motor 3, an installation platform 4, a box-type bottom platform 5, a feed hopper 6, a frame 8, a bearing seat 10, a diaphragm coupling 11, a receiving hopper 12, a graduated scale 13, a coupling 15, a universal joint coupling 16, a stepped shaft 18, a shaft sleeve 17, a core rod 19, a bearing gland 20, a bearing 22, a propelling hand wheel 24, a propelling screw 25 and a propelling screw gland 26; the mounting table 4 is provided with a motor 3 and a speed reducer 2, the output end of the motor 3 is connected with the input end of the speed reducer 2 through a diaphragm coupling 11, two output ends of the speed reducer 2 are respectively connected with two universal joint couplings 16 through couplings 15, and the other end of each universal joint coupling 16 is connected with the input end of a stepped shaft 18; the stepped shaft 18 is connected with a bearing seat 10 through a bearing 22, and the bearing seat 10 is fixed on the inner wall of the frame 8; a shaft sleeve 17 as a roller is sleeved on the stepped shaft 18; the core of the stepped shaft 18 is provided with a core rod 19; the energy exchange with the mandrel 19, the stepped shaft 18, and the roll shell is realized by heating or cooling the mandrel 19.
The frame 8 is fixed on the box-type base platform 5, and the box-type base platform 5 is fixed on the mounting platform 4; a feed hopper 6 is fixed on the frame 8 through a feed hopper support 7; the receiving hopper 12 is arranged at the lower part of the mounting table 4; the feed hopper 6 is used for pouring liquid metal between the two roll gaps, is positioned right above the two roll gaps, and is horizontally arranged with the feed hopper 6 at the top of the frame 8.
One end of a propelling screw 25 penetrates through the rack 8 to be connected with a propelling screw gland 26 and a fixing device 27, the propelling screw gland 26 is fixed on the rack 8, the fixing device 27 is fixed with the bearing block 10, the other end of the propelling screw 25 is provided with a propelling hand wheel 24, the propelling hand wheel 24 is rotated to drive the propelling screw 25, the bearing block 10 is further pushed to move, and the distance between the two rollers is changed. The graduated scale 13 is arranged on the side surface of the frame 8, and the central position of the connecting line of the two stepped shafts 18 is convenient for observing and adjusting the distance between the two stepped shafts 18. And the roll gap distance can be adjusted more clearly by observing the graduated scale 13. Mounting bearing covers 20 on both sides of the contact position of the propelling screw 25 and the frame 8 to prevent the roller from moving when the propelling hand wheel 24 is propelled.
Wherein, the material of the shaft sleeve 17 is copper. The outer ring of the bearing 22 is provided with a bearing gland 20, and lock nuts 21 are provided on both sides of the stepped shaft 18 for fixing the position of the stepped shaft 18. A stop bolt 23 is provided on the stand to prevent play of the bearing housing 10 during rolling. The universal joint coupler 16 is provided with a universal joint coupler protective cover 1, and a diaphragm coupler protective cover 14 is fixed outside the diaphragm coupler 11 to protect a test device and an operator. The bearing seat 10 is arranged on the upper surface of the bearing seat bottom plate 9, the bearing seat bottom plate 9 is fixed on the box-type bottom table 5, and the side surface of the bearing seat bottom plate 9 is embedded in the rack 8. Since the bearing seat 10 cannot be attached to the upper surface of the mount table 4, the frame 8 is fixed by being placed on the box bed 5. The bearing seat bottom plate 9 arranged at the bottom of the roller is used for supporting the bearing seat 10, and a hole is formed in the horizontal center position of the bearing seat bottom plate 9 and used for removing rolled materials. A receiving hopper 12 is arranged below the corresponding hole, so that rolled materials can be conveniently recycled. The bottom surface of the mounting platform 4 is provided with a foundation bolt hole, so that the mounting platform 4 can be conveniently placed and fixed on the ground.
Referring to fig. 1-4, a universal joint coupler protective cover 1, a speed reducer 2, a motor 3 and a box-type base table 5 are all fixed on a mounting table 4. The two rollers are horizontally arranged on the frame 8 and consist of a shaft sleeve 17, a stepped shaft 18 and a core rod 19. The power supply is started, the motor 3 drives the direct-drive speed reducer 2, and then the two telescopic universal joint couplers 16 transmit the torque and the motion to the two rollers. The shaft sleeve 17 is insulated for 3-6 hours at 300-400 ℃, and then the stepped shaft 18 is inserted into the shaft sleeve while the shaft sleeve is hot. A bearing 22 is mounted on the stepped shaft 18, and the bearing 22 is placed in the bearing housing 10. The bearing seat 10 is used for supporting the bearing 22, and fixes the outer ring of the bearing 22, so that only the inner ring of the bearing 22 rotates, and the outer ring keeps still and always consistent with the running direction of the motor 3, and the aim is to keep balance. The bearing gland 20 is mounted on the outer ring of the bearing 22 to axially position the outer ring, and also has the functions of dust prevention and sealing. During the test, the core rod 19 is heated or cooled and inserted into the hole of the stepped shaft 18 so as to simulate the hot/warm rolling and cast rolling processes.
Referring to fig. 1-4, thermocouple probes or strain gauges are uniformly distributed outside the shaft sleeve 17, and during test, a plurality of thermocouple probes are uniformly distributed at the position of an outer axis of the shaft sleeve 17 (copper sleeve) and connected with a main control display for data reading, storage and display. Putting the profiling test piece which is well heated and insulated between the two shaft sleeves 17 for operation; and recording temperature data at intervals, and finishing temperature data acquisition after the temperature of the copying test piece and the temperature of the shaft sleeve 17 are not obviously changed (the temperature difference between the copying test piece and the shaft sleeve is 10-15 ℃). And replacing the corresponding position of the thermocouple probe with a strain gauge, connecting the strain gauge to a computer through an intermediate converter, and processing data by the computer. And (3) putting the profiling test piece which is heated and insulated in the same way between the two shaft sleeves 17 for operation, and finishing strain data acquisition after the temperature of the profiling test piece and the temperature of the shaft sleeves 17 are not changed obviously (the temperature difference between the profiling test piece and the shaft sleeves is 10-15 ℃). And changing the axial and circumferential data acquisition positions to repeat a plurality of operations, and drawing a chart to be analyzed.
The experimental study on the thermal deformation of the roll sleeve in the casting temperature field is simulated according to the casting test. The setting of assumptions, boundary conditions, etc. problems is adjusted by experimentation. Then a large number of simulations (changing parameters) were performed to explore the rule results. The research on the mechanism of the thermal deformation of the roller sleeve has profound influence on the improvement of the product quality, the smooth proceeding of the process and the control of the process parameters.
Claims (5)
1. A casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device is characterized in that a horizontal rotor structure is adopted, and the device comprises a speed reducer, a motor, an installation table, a box type bottom table, a feed hopper, a rack, a bearing seat, a diaphragm coupling, a receiving hopper, a graduated scale, a coupling, a universal joint coupling, a stepped shaft, a shaft sleeve, a core rod, a bearing, a propelling hand wheel, a propelling screw and a propelling screw gland;
the mounting table is provided with a motor and a speed reducer, the output end of the motor is connected with the input end of the speed reducer through a diaphragm coupling, two output ends of the speed reducer are respectively connected with two universal joint couplers through couplings, and the other end of each universal joint coupler is connected with the input end of a stepped shaft; the stepped shaft is connected with a bearing seat through a bearing, the bearing seat is fixed on the inner wall of the rack, the bearing seat is arranged on the upper surface of a bearing seat bottom plate, a hole is formed in the bearing seat bottom plate, a receiving hopper is arranged below the hole, the bearing seat bottom plate is fixed on a box-type bottom table, and the side surface of the bearing seat bottom plate is embedded in the rack; a shaft sleeve as a roller is sleeved on the stepped shaft; a core rod is arranged at the core part of the stepped shaft; the energy exchange among the core rod, the stepped shaft and the shaft sleeve is realized by heating or cooling the core rod;
the frame is fixed on the box-type base platform, and the box-type base platform is fixed on the mounting platform; a feed hopper is fixed on the rack through a feed hopper support, is used for pouring liquid metal between the two roll gaps, is positioned right above the two roll gaps, and is horizontally arranged with the feed hopper at the top of the rack; the receiving hopper is arranged at the lower part of the mounting table; the graduated scale is arranged on the side surface of the rack, and the center of the connecting line of the two stepped shafts is convenient for observing and adjusting the distance between the two stepped shafts;
one end of a propelling screw penetrates through the rack and is connected with a propelling screw gland and a fixing device, the propelling screw gland is fixed on the rack, the fixing device is fixed with the bearing block, the other end of the propelling screw is provided with a propelling hand wheel for adjusting the distance between the two rollers, and the bearing caps are installed on two sides of the contact part of the propelling screw and the rack;
during testing, the core rod is heated or cooled and inserted into the stepped shaft hole to simulate hot/warm rolling and cast rolling processes, and the shaft sleeve is inserted into the stepped shaft after being insulated at 300-400 ℃ for 3-6 hours;
thermocouple probes or strain gauges are uniformly distributed outside the shaft sleeve;
the shaft sleeve is made of copper;
during testing, a plurality of thermocouple probes are uniformly arranged at the position of an axial line outside the shaft sleeve and are connected with a main control display to read, store and display data; putting the profiling test piece which is well heated and insulated between the two shaft sleeves for operation; recording temperature data at intervals, and after the temperature of the profiling test piece and the temperature of the shaft sleeve do not change obviously, keeping the temperature difference between the profiling test piece and the shaft sleeve at 10-15 ℃, and finishing temperature data acquisition; replacing the corresponding position of the thermocouple probe with a strain gauge, connecting the strain gauge to a computer through an intermediate converter, and processing data by the computer; and (3) putting the profiling test piece which is heated and insulated in the same way between the two shaft sleeves for operation, and after the temperature of the profiling test piece and the temperature of the shaft sleeves are not changed obviously, keeping the temperature difference between the profiling test piece and the shaft sleeves at 10-15 ℃, and finishing strain data acquisition.
2. The casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device as claimed in claim 1, wherein a bearing gland is arranged on an outer ring of the bearing.
3. The casting-rolling production process parameter multi-field coupling parameter comprehensive experimental testing device as claimed in claim 1, wherein the universal joint coupler is provided with a universal joint coupler protective cover.
4. The casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device as claimed in claim 1, wherein a diaphragm coupling protective cover is fixed outside the diaphragm coupling.
5. The casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device as claimed in claim 1, wherein a foundation bolt hole is formed in the bottom surface of the mounting platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810218095.2A CN108665780B (en) | 2018-03-16 | 2018-03-16 | Casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device |
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| CN201810218095.2A CN108665780B (en) | 2018-03-16 | 2018-03-16 | Casting-rolling production process parameter multi-field coupling parameter comprehensive experiment testing device |
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| CN109883873A (en) * | 2019-03-27 | 2019-06-14 | 辽宁科技大学 | A kind of side seal board fretting wear Detecting data and experimental method |
| CN109968801A (en) * | 2019-04-01 | 2019-07-05 | 嘉兴铸工智能设备有限公司 | Numerical control Brander |
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| CN101144763A (en) * | 2007-09-17 | 2008-03-19 | 济南钢铁股份有限公司 | Minisize experimental mill for thermal machine experiment machine |
| CN201603849U (en) * | 2010-03-26 | 2010-10-13 | 涿神有色金属加工专用设备有限公司 | Horizontal aluminum casting rolling device with roll gap adjusting device |
| CN102798576B (en) * | 2011-05-26 | 2015-08-05 | 燕山大学 | A kind of analog detecting method of continuous casting billet casting work roll surface thermal fatigue life |
| CN202471536U (en) * | 2012-02-28 | 2012-10-03 | 杭州电子科技大学 | Device for measuring abrasion loss and friction coefficient of high-speed rolling interface roller |
| CN104646421B (en) * | 2015-01-27 | 2016-06-01 | 燕山大学 | The solid liquid casting and rolling installation of a kind of ply-metal electricimpulse and method |
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Effective date of registration: 20230202 Address after: 063600 south of Lexin Road, Sanhe economic community, leting Town, leting County, Tangshan City, Hebei Province Patentee after: Tangshan yangbang iron and Steel Technology Research Institute Co.,Ltd. Address before: 114044, No. 185, Qianshan Road, hi tech Zone, Liaoning, Anshan Patentee before: University of Science and Technology Liaoning |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 |