CN108284213A - A kind of On-Line Dynamic Monitoring prevents the hollow electroslag remelting interior crystallizer braking system of stripping formula and its method of adjustment - Google Patents
A kind of On-Line Dynamic Monitoring prevents the hollow electroslag remelting interior crystallizer braking system of stripping formula and its method of adjustment Download PDFInfo
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- CN108284213A CN108284213A CN201810076921.4A CN201810076921A CN108284213A CN 108284213 A CN108284213 A CN 108284213A CN 201810076921 A CN201810076921 A CN 201810076921A CN 108284213 A CN108284213 A CN 108284213A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000001816 cooling Methods 0.000 claims abstract description 88
- 239000002893 slag Substances 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000007499 fusion processing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims 1
- 238000003723 Smelting Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 101100165177 Caenorhabditis elegans bath-15 gene Proteins 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007787 solid Substances 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
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/06—Melting-down metal, e.g. metal particles, in the mould
- B22D23/10—Electroslag casting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of On-Line Dynamic Monitorings to prevent the hollow electroslag remelting interior crystallizer braking system of stripping formula, including crystallizer, water cooling interior crystallizer, water cooling dummy ingot conduction bottom water case, slag bath, stripping device, rise fall of electrodes driving motor and stripping motor outside dummy electrode, consutrode group, water cooling, it further includes crossbeam, pressure sensor, communication power supply, control system, crossbeam is arranged outside water cooling above crystallizer, water cooling is outer to install pressure sensor between crystallizer and crossbeam, water cooling interior crystallizer is fixed on the lower section of crossbeam；Communication power supply is connected to by cable one end on dummy electrode, and the other end is connected on water cooling dummy ingot conduction bottom water case；Control system is connect with pressure sensor, rise fall of electrodes driving motor and stripping motor.The device can timely and accurately On-Line Dynamic Monitoring and adjustment the hollow esr process of stripping formula in interior crystallizer stress, avoid locking phenomenon, it is ensured that smelting process is smoothed out.
Description
Technical field
The invention belongs to metal electroslag remelting technique FIELD OF THE INVENTIONThes more particularly to a kind of dynamic to prevent the hollow electroslag of stripping formula
The device and its method of adjustment of remelting interior crystallizer locking.
Background technology
Electroslag remelting hollow steel ingot technology is to prepare one of the important method of the seamless special steel of high-quality and special alloy.Electricity
During slag remelting hollow steel ingot, the annular space of crystallizer and water cooling dummy device composition outside water cooling interior crystallizer, water cooling
Middle addition liquid slag, the end of consutrode is inserted.When the consutrode, clinker, bottom water case of branched parallel connection pass through
When short net forms current supply circuit with transformer, just there is electric current, by molten slag, to make the end of consutrode from transformer output
It is gradually heated by the sonochemical activity fusing, molten metal enters metal bath across slag bath, because outer crystallizer center is equipped with water cooling interior crystallizer,
Liquid metal gradually solidifies, and forms hollow steel ingot.After hollow steel ingot reach a certain height, start stripping.
Due to the presence of water cooling interior crystallizer, hollow steel ingot is made to generate larger difference in Solidification Characteristics with solid steel ingot.
The solidification shrinkage of hollow steel ingot make ingot casting far from outside water cooling while crystallizer close to water cooling interior crystallizer, bored in inside and outside crystallizer
When degree, design of Cooling System and several technological parameters (remelting power, burn-off rate and stripping speed etc.) mismatch, leakage will be generated
Slag, bleed-out or even water cooling interior crystallizer are by hollow steel ingot " locking ", the case where causing interior crystallizer to be broken when serious.
Pass through the interior crystallizer taper of reasonable design in the prior art；Stripping is avoided by the matching of technological parameter simultaneously
Interior crystallizer " locking " in journey." one kind being used for electro-slag continuous stripping hollow steel ingot to the patent of application number CN200920185822.6
Crystallizer ", the characteristics of author Rao Yunfu is shunk according to molten steel solidification, designs a set of reasonably de- ingot taper, it is proposed that core
Upper hem width, following narrow inverted trapezoidal shape is presented in the section of portion's crystallizer, and taper (φ 1- φ 2)/h ranges of core crystallizer are 3/
Between 100~3.5/100.This method is disadvantageous in that：It can not dynamically be monitored online and accurate adjusting process parameter.
Invention content
Present invention is generally directed to deficiency, providing a kind of On-Line Dynamic Monitoring prevents crystallization in the hollow electroslag remelting of stripping formula
Device braking system and its method of adjustment, can timely and accurately On-Line Dynamic Monitoring and adjustment the hollow esr process of stripping formula
Middle interior crystallizer stress, avoids locking phenomenon, it is ensured that smelting process is smoothed out.
The present invention is achieved by the following technical solution：
A kind of On-Line Dynamic Monitoring prevents the hollow electroslag remelting interior crystallizer braking system of stripping formula, including dummy electrode, from power consumption
The outer crystallizer of pole group, water cooling, water cooling interior crystallizer, water cooling dummy ingot conduction bottom water case, slag bath, stripping device, rise fall of electrodes driving
Motor and stripping motor, it further includes crossbeam, pressure sensor, communication power supply, control system, and crossbeam is arranged outside water cooling
Above crystallizer, water cooling is outer to install pressure sensor between crystallizer and crossbeam, water cooling interior crystallizer is fixed on the lower section of crossbeam；
Communication power supply is connected to by cable one end on dummy electrode, and the other end is connected on water cooling dummy ingot conduction bottom water case；Control
System is connect with pressure sensor, rise fall of electrodes driving motor and stripping motor.
Stripping device includes stripping column and stripping platform, and the lower section of crystallizer, stripping is arranged outside water cooling in stripping platform
Water cooling dummy ingot conduction bottom water case is installed on platform, crystallizer platform is installed on stripping column.
The outer crystallizer of water cooling is by crystallizer structure outside crystallizer outside crystallizer outside water cooling upper layer, water cooling middle level and water cooling lower layer
At crystallizer outside columnar water cooling lower layer is installed in crystallizer platform inside, and crystallizer top installation inner cavity is cut outside water cooling lower layer
Face is crystallizer outside the cylinder water-cooling middle level of T-type structure, crystallizer outside the water cooling upper layer of crystallizer and top outside water cooling middle level
Between be equipped with insulating layer.
Its method of adjustment includes the following steps：
Step 1 when stripping, by crossbeam fixed, and hollow steel ingot moves down by water cooling interior crystallizer, due to frictional force, passes through inspection
Survey the when variate that element-pressure sensor will collect pressure；
Variate is sent into control system as negative-feedback signal when step 2 pressure sensor is collected pressure；
Step 3 control system is using preset pressure value as positive signal；It is used in combination positive signal and the difference of negative-feedback signal logical
It crosses stripping motor and instantaneously adjusts stripping speed, consutrode group burn-off rate is instantaneously adjusted by communication power supply, makes pressure
Measurement value sensor is equal with the pressure value holding set in control system, controls what water cooling interior crystallizer in fusion process was subject to
Pressure is maintained on the best stress value of melting.
The course of work of the present invention：In carrying out production fusion process, rise fall of electrodes driving motor drives consutrode group
It is inserted into slag bath, consutrode group, clinker and water cooling dummy ingot conduction bottom water case form current supply circuit by short net and transformer, melt
The resistance heat of slag makes comsumable melt, metal drop pass through slag bath, instills in inside and outside water mold, liquid metal gradually coagulates
Gu forming hollow steel ingot.After hollow steel ingot reach a certain height, start stripping.Make casting with the solidification shrinkage of hollow steel ingot
Ingot far from outside water cooling while crystallizer close to water cooling interior crystallizer, when stripping, below the crossbeam pressure sensor generates signal, real
When the pressure value that detects be sent into control system and be used as negative-feedback signal, control system is using preset pressure value as just believing
Number；It is used in combination positive signal and the difference of negative-feedback signal instantaneously to adjust stripping speed by stripping motor, passes through communication power supply
Instantaneous adjustment burn-off rate, keeps pressure sensor measurements equal with the pressure value holding set in control system, controls melting
The pressure that water cooling interior crystallizer in the process is subject to is maintained on the best stress value of melting.
The present invention has the advantages that compared with prior art:
The present invention can timely and accurately On-Line Dynamic Monitoring and adjustment the hollow esr process of stripping formula in interior crystallizer by
Power state, avoids locking phenomenon, it is ensured that smelting process is smoothed out.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Serial number in figure:1. dummy electrode, 2. consutrode groups, 3. crossbeams, crystallizer outside 4. water cooling upper layers, 5. Alternating Current Power Supplies
Power supply, 6. insulating layers, crystallizer outside 7. water cooling middle levels, 8. crystallizer platforms, crystallizer outside 9. water cooling lower layers, 10. stripping columns,
11. stripping platform, 12. stripping motors, 13. water cooling dummy ingot conduction bottom water casees, 14. hollow steel ingots, 15. slag baths, 16. control systems
System, 17. pressure sensors, 18. water cooling interior crystallizers, 19. rise fall of electrodes driving motors.
Specific implementation mode
The technical solutions of the present invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment：Shown in Figure 1, a kind of On-Line Dynamic Monitoring prevents the hollow electroslag remelting interior crystallizer locking of stripping formula
Device, including dummy electrode 1, consutrode group 2, crossbeam 3, crystallizer 4 outside water cooling upper layer, communication power supply 5, insulating layer 6, water
Crystallizer 7 outside cold middle level, crystallizer platform 8, crystallizer 9 outside water cooling lower layer, stripping column 10, stripping platform 11, stripping motor
12, water cooling dummy ingot conduction bottom water case 13, hollow steel ingot 14, slag bath 15, control system 16, pressure sensor 17, the interior crystallization of water cooling
Device 18, rise fall of electrodes driving motor 19；Crystallizer platform 8 is mounted on stripping column 10, and cylinder is installed in 8 inside of crystallizer platform
Crystallizer 9 outside the water cooling lower layer of shape, 9 top installation intracavity section of crystallizer is the cylinder water-cooling of T-type structure outside water cooling lower layer
Crystallizer 7 outside middle level are separated between crystallizer 4 with insulating layer 6 outside water cooling middle level, water cooling upper layer outside crystallizer 7 and water cooling upper layer
The crossbeam 3 of water cooling interior crystallizer 18 is fixed in the 4 top installation of outer crystallizer, and pressure is installed between crystallizer 4 and crossbeam 3 outside water cooling upper layer
Force snesor 17, the lower section installation stripping platform 11 of crystallizer 9 outside water cooling lower layer, installation water cooling dummy ingot is conductive on stripping platform 11
The radius size of bottom water case 13, water cooling dummy ingot conduction bottom water case 13 is slightly less than 9 inner radius size of crystallizer outside water cooling lower layer；It hands over
One end is connected on dummy electrode 1 by stream power supply by high current water-cooled cable, and the other end is connected to water cooling dummy ingot conduction bottom
On water tank 13；Control system 16 is connect with pressure sensor 17, rise fall of electrodes driving motor 19 and stripping motor 12.
Its method of adjustment includes the following steps：
Step 1 when stripping, by crossbeam 3 fixed by water cooling interior crystallizer 18, and hollow steel ingot 14 moves down, and due to frictional force, is led to
Cross the when variate that detecting element-pressure sensor 17 will collect pressure；
Variate when 17 collected pressure of pressure sensor is sent into control system 16 and is used as negative-feedback signal by step 2；
Step 3 control system 16 is using preset pressure value as positive signal；Positive signal and the difference of negative-feedback signal is used in combination
Stripping speed is instantaneously adjusted by stripping motor 12,2 burn-off rate of consutrode group is instantaneously adjusted by communication power supply 5,
Keep 17 measured value of pressure sensor equal with the pressure value holding set in control system 16, controls in fusion process and tied in water cooling
The pressure that brilliant device 18 is subject to is maintained on the best stress value of melting.
In carrying out production fusion process, rise fall of electrodes driving motor 19 drives consutrode group 2 to be inserted into slag bath 15, from
Power pole group 2, slag bath 15, water cooling dummy ingot conduction bottom water case 13 form current supply circuit, slag by short net and communication power supply 5
Resistance heat make comsumable melt, metal drop passes through slag bath 15, instills in inside and outside water mold, liquid metal gradually coagulates
Gu forming hollow steel ingot 14.After hollow steel ingot 14 reach a certain height, start stripping, with the solidification shrinkage of hollow steel ingot
Make ingot casting far from outside water cooling lower layer while crystallizer 9 close to water cooling interior crystallizer 18, when stripping, 3 following pressure of crossbeam sensing
Device 17 generates signal, and the pressure value detected in real time is sent into control system 16 and is used as negative-feedback signal, and control system 16 will be advance
The pressure value of setting is as positive signal；It is used in combination positive signal and the difference of negative-feedback signal to pass through the instantaneously adjustment stripping of stripping motor 12
Speed instantaneously adjusts burn-off rate by communication power supply 5,17 measured value of pressure sensor is made to be set with control system 16
Pressure value keep equal, the pressure that is subject to of water cooling interior crystallizer 18 controlled in fusion process is maintained at the best stress value of melting
On.
Embodiment does not constitute the limit to the scope of the present invention only to facilitate understand technical scheme of the present invention
System, it is every without departing from technical solution of the present invention perhaps according to the technical essence of the invention to any letter made by above scheme
Single modification, equivalent variations and modification, still fall within the scope of the present invention.
Claims (4)
1. a kind of On-Line Dynamic Monitoring prevents the hollow electroslag remelting interior crystallizer braking system of stripping formula, including dummy electrode is (1), certainly
Power pole group (2), water cooling outer crystallizer, water cooling interior crystallizer (18), water cooling dummy ingot conduction bottom water case (13), slag bath (15), stripping device,
Rise fall of electrodes driving motor (19) with stripping motor (12), it is characterised in that：It further include crossbeam (3), pressure sensor (17), exchange supply
Power supply (5), control system (16), (3) crossbeam is arranged outside water cooling above crystallizer, the outer crystallizer of water cooling and crossbeam (3) between install
(17), (18) water cooling interior crystallizer is fixed on the lower section of crossbeam (3) to pressure sensor；Communication power supply is connected to by cable one end
On dummy electrode, the other end be connected to water cooling dummy ingot conduction bottom water case (13) on；Control system (16) with pressure sensor (17), rise fall of electrodes
(19) (12) driving motor is connected with stripping motor.
2. On-Line Dynamic Monitoring according to claim 1 prevents the hollow electroslag remelting interior crystallizer braking system of stripping formula,
It is characterized in that：Stripping device include stripping column (10) with stripping platform (11), (11) the crystallizer outside water cooling is arranged in stripping platform
Lower section, stripping platform (11) upper installation water cooling dummy ingot conduction bottom water case (13), stripping column (10) on crystallizer platform is installed (8).
3. On-Line Dynamic Monitoring according to claim 2 prevents the hollow electroslag remelting interior crystallizer braking system of stripping formula,
It is characterized in that：The outer crystallizer of water cooling by crystallizer outside water cooling upper layer, (4), outside water cooling middle level (7) with outside water cooling lower layer tie by crystallizer
(9) brilliant device is constituted, (8) (9) crystallizer is installed outside columnar water cooling lower layer in inside to crystallizer platform, and crystallizer is (9) outside water cooling lower layer
(7) and top (7) crystallizer is installed outside the cylinder water-cooling middle level that intracavity section is T-type structure in top, crystallizer outside water cooling middle level
Water cooling upper layer outside crystallizer (4) between be equipped with insulating layer (6).
4. On-Line Dynamic Monitoring according to claim 3 prevents the hollow electroslag remelting interior crystallizer braking system of stripping formula,
It is characterized in that：Its method of adjustment includes the following steps：
Step 1 when stripping, (3) (18) fixed by crossbeam, (14) hollow steel ingot moves down by water cooling interior crystallizer, due to frictional force,
The when variate of pressure (17) will be collected by detecting element-pressure sensor；
Step 2 by pressure sensor (17) collected pressure when variate be sent into control system (16) be used as negative-feedback signal；
Step 3 control system is (16) using preset pressure value as positive signal；Positive signal and the difference of negative-feedback signal is used in combination
Stripping speed is (12) instantaneously adjusted by stripping motor, (5) instantaneously (2) adjustment consutrode group melts speed by communication power supply
Degree, making pressure sensor, (17) (16) the middle pressure value holding set is equal with control system for measured value, controls water cooling in fusion process
(18) pressure that interior crystallizer is subject to is maintained on the best stress value of melting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076921.4A CN108284213B (en) | 2018-01-26 | 2018-01-26 | Device for preventing ingot-drawing type hollow electroslag remelting inner crystallizer from locking by online dynamic monitoring and adjusting method thereof |
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| CN201810076921.4A CN108284213B (en) | 2018-01-26 | 2018-01-26 | Device for preventing ingot-drawing type hollow electroslag remelting inner crystallizer from locking by online dynamic monitoring and adjusting method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193591A (en) * | 2019-06-05 | 2019-09-03 | 太仓市华鑫轧辊有限公司 | A kind of cylinder shape Forging reparation set hollow electroslag remelting device of blank |
| CN110345756A (en) * | 2019-07-04 | 2019-10-18 | 江苏省徐州华泰工具有限责任公司 | Equipment suitable for tools factory's waste iron filing melting |
| CN113798474A (en) * | 2020-06-12 | 2021-12-17 | 沈阳航空航天大学 | Electroslag additive manufacturing method |
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Address after: 225721 No.1, west side of Xingda Avenue, Dainan Town, Xinghua City, Taizhou City, Jiangsu Province Applicant after: Jiangsu Xinghuo Special Steel Group Co.,Ltd. Address before: 225721 No.1, west side of Xingda Avenue, Dainan Town, Xinghua City, Taizhou City, Jiangsu Province Applicant before: JIANGSU XIHU SPECIAL STEEL Co.,Ltd. |
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