CN211999861U - Wire feeding device and electroslag furnace with same - Google Patents
Wire feeding device and electroslag furnace with same Download PDFInfo
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- CN211999861U CN211999861U CN201922470991.0U CN201922470991U CN211999861U CN 211999861 U CN211999861 U CN 211999861U CN 201922470991 U CN201922470991 U CN 201922470991U CN 211999861 U CN211999861 U CN 211999861U
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Abstract
The utility model provides a wire feeding device and an electroslag furnace with the same, wherein the wire feeding device comprises a wire feeding machine, a lifter, an insulating sleeve, a length sensor, a position sensor, a weighing sensor and a control system; the weighing sensor is used for acquiring weight information of an electrode of the electroslag furnace; the length sensor and the position sensor are at least used for acquiring the wire feeding length information of a wire rod and the position information of the insulating sleeve in a crystallizer of the electroslag furnace respectively; the control system is at least used for acquiring and processing weight information, length information and position information and feeding back control instructions to the wire feeding machine and the lifter. The electroslag wire feeding device provided by the utility model is simple in operation, accurate and degree of automation of control is high.
Description
Technical Field
The utility model relates to a metallurgical device especially relates to a wire feeding device and have device's electroslag furnace.
Background
In the production of the metallurgical industry, the electro-slag remelting is usually carried out on metal by utilizing the inclusion removing function and good crystallization conditions of an electro-slag furnace so as to improve the purity of the metal, ensure that the as-cast structure is fine and uniform, disperse and refine the inclusions and improve the performance of the metal material. The slag liquid can remove part of active metal elements while removing impurities, so that the metal components are changed. Because the distance between the mother material needing electroslag remelting and the crystallizer is small, the mother material and the crystallizer are both electric conductors, the voltage is high, if a metal wire is added into the crystallizer, the metal wire and the crystallizer are easy to be short-circuited to damage the crystallizer, and at present, two ways of controlling active metal element components are mainly adopted, namely, when the mother material is produced, the loss amount of active metal elements is calculated in advance, the content of active metal in the mother material is increased, and the cost of the method is high. The other method is that active metal elements needing to be supplemented back are crushed into small particles and added into a crystallizer during electroslag, and the method has the following problems: the active metal elements are added on the surface of the slag liquid, so that the burning loss is large, the control is not easy, the reaction with the slag liquid is easy, the waste is large, and the balance of the slag liquid is influenced.
In view of the above problems, there is a need for a new wire feeding device and an electroslag furnace.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an easy operation, control are accurate and wire feeding device that degree of automation is high and have device's electroslag furnace.
In order to achieve the above object, the utility model adopts the following technical scheme:
a wire feeding device comprises a wire feeding machine, a lifter, an insulating sleeve, a length sensor, a position sensor, a weighing sensor and a control system;
the weighing sensor is used for acquiring weight information of an electrode of the electroslag furnace;
the wire feeding machine is arranged above a crystallizer of the electroslag furnace, a transmission device is arranged in the wire feeding machine and used for transmitting wires, and the insulating sleeve is arranged on the lifter and is configured to be inserted into the crystallizer of the electroslag furnace;
the length sensor and the position sensor are at least used for acquiring the wire feeding length information of the feeding wire and the position information of the insulating sleeve in a crystallizer of the electroslag furnace respectively;
weighing sensor, length sensor, position sensor, wire feeding machine and lift all with control system connects, control system is used for acquireing at least and handles weight information, length information and position information, and to wire feeding machine and lift feedback control instruction.
Further, the wire feeding device is also provided with at least one set of straightener, and the straightener is positioned between the wire feeding machine and the insulating sleeve.
Further, the straightener includes mounting panel and a plurality of alignment wheel, be equipped with a plurality of regulation waist shape holes on the mounting panel, the alignment wheel passes through adjust waist shape hole and install on the mounting panel, it forms the alignment passageway to delimit between the alignment wheel.
Further, the wire feeding device is also provided with a pay-off rack, and the pay-off rack is adjacent to the wire feeding machine.
Furthermore, the wire feeding device is also provided with a wire outlet guide pipe, and the wire outlet guide pipe is arranged between the wire feeding machine and the straightening machine.
Further, the insulating sleeve has a degree of freedom to move up and down in the vertical direction. The movement can be realized by arranging the insulating sleeve on the elevator, and can also be realized by a slide rail, an air cylinder driving device, a servo driving device and the like.
Further, the insulating sleeve is configured to guide the wire into a crystallizer of an electroslag furnace. Preferably, the insulating sleeve is configured to vertically guide the wire into a crystallizer of an electroslag furnace.
Further, the wire feeding machine comprises a wire feeding rack, a transmission device and a guide pipe, wherein the transmission device is installed on the wire feeding rack and comprises a speed reducer, a wire feeding driving wheel and a wire feeding driven wheel; the wire feeding driving wheel is arranged on the speed reducer, the wire feeding driven wheel is arranged on one side of the wire feeding driving wheel in a matched mode, a transmission channel is defined between the wire feeding driving wheel and the wire feeding driven wheel, and the guide pipes are arranged on two sides of the transmission channel in a matched mode; the wire rod passes through the guide pipe on one side and enters the transmission channel, and under the action of the wire feeding driven wheel and the wire feeding driving wheel, the wire rod can be close to or far away from the guide pipe on the other side, so that the wire rod is transmitted.
Furthermore, the speed reducer, the wire feeding driving wheel and the wire feeding driven wheel can be two or more than two.
Furthermore, the speed reducer is provided with a servo motor and/or a stepping motor which are matched with the speed reducer, so that the control precision and the response speed are improved.
Further, the elevator comprises a servo motor, a sliding guide rail, a screw rod and a sliding platform; the servo motor is connected with the screw rod, the screw rod is installed on the sliding guide rail, and the sliding platform is installed on the sliding guide rail; and the sliding platform moves up and down along the sliding guide rail under the action of the servo motor and the screw rod.
Further, the elevator may also pneumatically slide the guide rails.
An electroslag furnace comprises a main body and a wire feeding device, wherein the main body comprises an upright post, an electrode and a crystallizer, and the wire feeding device comprises a wire feeding machine, a lifter, an insulating sleeve, a length sensor, a position sensor, a weighing sensor and a control system;
the weighing sensor is used for acquiring weight information of the electrode;
the wire feeding machine is arranged above a crystallizer of the electroslag furnace, a transmission device is arranged in the wire feeding machine and used for transmitting wires, and the insulating sleeve is arranged on the lifter and is configured to be inserted into the crystallizer;
the length sensor and the position sensor are respectively used for acquiring the wire feeding length information of the feeding wire and the position information of the insulating sleeve in the crystallizer;
weighing sensor, length sensor, position sensor, wire feeding machine and lift all with control system connects, control system is used for acquireing and handling weight information, length information and position information, and to wire feeding machine and lift feedback control instruction.
Further, the crystallizer is arranged on one side of the upright post.
Furthermore, the main body further comprises an electrode bracket and a motor, the electrode bracket is connected with the motor, the electrode bracket is mounted on the upright post, and the electrode is mounted on the electrode bracket; the electrode can move up and down under the action of the motor and the electrode bracket.
Further, the wire feeding device is also provided with at least one set of straightener, and the straightener is positioned between the wire feeding machine and the insulating sleeve.
Further, the straightener includes mounting panel and a plurality of alignment wheel, be equipped with a plurality of regulation waist shape holes on the mounting panel, the alignment wheel passes through adjust waist shape hole and install on the mounting panel, it forms the alignment passageway to delimit between the alignment wheel.
Further, the wire feeding device is also provided with a pay-off rack, and the pay-off rack is adjacent to the wire feeding machine.
Furthermore, the wire feeding device is also provided with a wire outlet guide pipe, and the wire outlet guide pipe is arranged between the wire feeding machine and the straightening machine.
Further, the insulation sleeve may move up and down in a vertical direction.
Further, the insulating sleeve is configured to vertically guide the wire into a crystallizer of an electroslag furnace, so that the insulating sleeve can effectively guide the wire into alloy liquid formed in the electroslag furnace crystallizer, and therefore elements to be fed are added into the alloy liquid.
Further, the wire feeding machine comprises a wire feeding rack, a transmission device and a guide pipe, wherein the transmission device is installed on the wire feeding rack and comprises a speed reducer, a wire feeding driving wheel and a wire feeding driven wheel; the wire feeding driving wheel is arranged on the speed reducer, the wire feeding driven wheel is arranged on one side of the wire feeding driving wheel in a matched mode, a transmission channel is defined between the wire feeding driving wheel and the wire feeding driven wheel, and the guide pipes are arranged on two sides of the transmission channel in a matched mode; the wire rod passes through the guide pipe on one side and enters the transmission channel, and under the action of the wire feeding driven wheel and the wire feeding driving wheel, the wire rod can be close to or far away from the guide pipe on the other side, so that the wire rod is transmitted.
Furthermore, the speed reducer, the wire feeding driving wheel and the wire feeding driven wheel can be two or more than two.
Furthermore, the speed reducer is provided with a servo motor and/or a stepping motor which are matched with the speed reducer, so that the control precision and the response speed are improved.
Furthermore, the elevator comprises a servo motor, a sliding guide rail, a screw rod and a sliding platform, wherein the servo motor is connected with the screw rod, the screw rod is installed on the sliding guide rail, and the sliding platform is installed on the sliding guide rail; and the sliding platform moves up and down along the sliding guide rail under the action of the servo motor and the screw rod.
Further, the wire is a core-spun wire and/or a metal solid wire, preferably, the manufacturing material of the metal solid wire, the outer layer binding material of the core-spun wire are close to the components of the metal material needing electroslag production, or the core material of the core-spun wire contains metal elements needing to be added, so that the component control is facilitated.
The utility model discloses beneficial effect:
the utility model carries out analysis processing to the acquired weight information, length information and position information to obtain the alloy liquid level height, the wire feeding length, the speed and the position of the insulating sleeve in the crystallizer, and adjusts the wire feeding speed and the position of the insulating sleeve in real time according to the processing result, thereby achieving the effects of uniform wire feeding and constant distance between the insulating sleeve and the alloy liquid level; meanwhile, the insulating sleeve can effectively separate the crystallizer from the electrode, so that short circuit and damage to the crystallizer are avoided; the servo motor and the planetary reducer are adopted to drive the wire feeding, so that the control precision is high, and the speed regulation response is fast; the elevator adopting the combination of the servo motor and the screw rod also has the advantages of accurate control and quick response.
Drawings
FIG. 1 is a schematic structural view of an embodiment of an electroslag furnace with a wire feeding device of the present invention;
FIG. 2 is a schematic structural view of an embodiment of a wire feeding machine of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the elevator of the present invention;
fig. 4 is a schematic structural diagram of an embodiment of the center straightening machine of the present invention.
Reference numerals: 1. a main body; 2. a wire feeder; 3. an elevator; 4. straightening machine; 5. an insulating sleeve; 6. a pay-off rack; 7. a wire outlet conduit; 8. a length sensor; 9. a position sensor; 10. a control system; 11. a column; 12. a crystallizer; 13. an electrode holder; 14. an electrode; 15. a motor; 16. a weighing sensor; 17. A wire rod; 21 a wire feeding rack; 22. a guide tube; 23. a speed reducer; 24. a wire feeding driving wheel; 25. a wire feeding driven wheel; 31 a servo motor; 32. a sliding guide rail; 33. a screw rod; 34. a sliding platform; 41. mounting a plate; 42. straightening wheels; 43. the waist-shaped hole is adjusted.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments and accompanying drawings. It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In the illustrated embodiment, directional references, i.e., up, down, left, right, front, rear, etc., are relative to each other and are used to explain the relative structure and movement of the various components in the present application. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the location of an element changes, it is believed that these representations will change accordingly.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, an electroslag furnace with wire feeding device of the present invention, including main body 1 and wire feeding device, wherein, wire feeding device includes wire feeding machine 2, lift 3, straightener 4, bushing 5 (the manufacturing material of bushing 5 should satisfy not damaged in the electroslag process, or have to damage less but not produce harmful effects to product quality), pay off rack 6, wire outlet pipe 7, length sensor 8, position sensor 9, weighing sensor 16 and control system 10. The main body 1 comprises a vertical column 11, a crystallizer 12, an electrode bracket 13, an electrode 14 and a motor 15; the electrode bracket 13 is mounted on the upright post 11, the weighing sensor 16 and the electrode 14 are mounted on the electrode bracket 13, the motor 15 is connected with the electrode bracket 13, and the weighing sensor 16 is used for acquiring weight information of the electrode 14; the electrode bracket 13 is provided with a clamping device, the clamping device is used for fixing the electrode 14, and the clamping device can move up and down under the action of a motor 15; the crystallizer 12 is arranged on one side of the upright post 11 and is positioned right below the electrode 14, and the electrode 14 can extend into the crystallizer 12 under the action of a motor 15.
As shown in fig. 2, the wire feeder 2 includes a wire feeding frame 21, a transmission device and a guide pipe 22, the transmission device is mounted on the wire feeding frame 21, and the transmission device includes a speed reducer 23, a wire feeding driving wheel 24 and a wire feeding driven wheel 25; the wire feeding driving wheel 24 is mounted on the speed reducer 23, the wire feeding driven wheel 25 is mounted on one side of the wire feeding driving wheel 24 in a matching mode, a transmission channel is defined between the wire feeding driving wheel 24 and the wire feeding driven wheel 25, and the guide pipe 22 is mounted on two sides of the transmission channel in a matching mode; the wire 17 passes through the guide tube 22 on one side and enters the transmission channel, and under the action of the wire feeding driven wheel 25 and the wire feeding driving wheel 24, the wire 17 can be close to or far away from the guide tube 22 on the other side, so that the wire 17 is transmitted.
As shown in fig. 3, the elevator 3 includes a servo motor 31, a sliding guide rail 32, a screw rod 33, and a sliding platform 34, wherein the servo motor 31 is connected to the screw rod 33, the screw rod 33 is installed on the sliding guide rail 32, and the sliding platform 34 is installed on the sliding guide rail 32; the sliding platform 34 moves up and down along the sliding guide rail 32 under the action of the servo motor 31 and the screw rod 33.
As shown in fig. 4, the straightening machine 4 includes a mounting plate 41 and a plurality of straightening wheels 42, a plurality of adjusting slots 43 are provided on the mounting plate 41, the straightening wheels 42 are mounted on the mounting plate 41 through the adjusting slots 43 and are arranged in a staggered manner, a straightening channel is formed between the straightening wheels 42, and different straightening effects can be realized by adjusting the relative positions of the straightening wheels 42.
As shown in fig. 1 to 4, the wire feeder 2 is disposed above the mold 12, the pay-off stand 6 is disposed above the wire feeder 2 (or may be disposed on a side of the wire feeder 12), and a straightener 4 is further disposed between the wire feeder 2 and the mold 12; an outlet guide pipe 7 is arranged between the wire feeding machine 2 and the straightening machine 4, one end of the outlet guide pipe 7 is arranged adjacent to a wire outlet of the guide pipe 22 of the wire feeding machine 2, and the other end of the outlet guide pipe 7 is arranged adjacent to a wire inlet of the straightening machine 4.
The lifter 3 is arranged on the upper side of the crystallizer 12, one end of the insulating sleeve 5 is arranged on a sliding platform 34 of the lifter 3, the insulating sleeve 5 is configured to be vertically inserted into the crystallizer 12 and is positioned between the electrode 14 and the inner wall of the crystallizer 12 after being inserted, and the insulating sleeve 5 can vertically move up and down in the crystallizer 12 under the action of the lifter 3.
The length sensor 8 is arranged at the wire outlet of the straightener 4 and used for acquiring the wire feeding length information of the wire 17; the position sensor 9 is mounted on the elevator 3 and is used for acquiring the position information of the insulating sleeve 5 in the crystallizer 12.
The acquisition lines of the weighing sensor 16, the length sensor 8 and the position sensor 9 are all connected to the control system 10, so that the control system 10 can acquire weight information, length information and position information collected by the weighing sensor 16, the length sensor 8 and the position sensor 9; the control lines of the wire feeder 2 and the elevator 3 are both connected to the control system 10, so that the control system 10 can feed back control instructions to the wire feeder 2 and the elevator 3.
When in use, the wire 17 is arranged on the pay-off rack 6, then the wire 17 sequentially passes through the wire feeding machine 2, the wire outlet guide pipe 7 and the straightening channel of the straightening machine 4, vertically extends into the insulating sleeve 5 and is guided into the crystallizer 2 through the insulating sleeve 5; the wire 17 may be a cored wire or a metal solid wire. The motor 15 is activated to extend the electrodes 14 into the mould 12. Starting a control system 10 to control a lifter 3 to insert an insulating sleeve 5 into a crystallizer 12, feeding a wire 17 into a straightening channel of a straightening machine 4 by a wire feeding machine 2, straightening and then sending the wire to the lower end of the insulating sleeve 5; the electroslag furnace 1 is started to start electroslag production, the weighing sensor 16 starts to acquire weight information of the electrode 14, the acquired weight information is fed back to the control system 10 in real time, the control system 10 analyzes and processes the weight information to obtain melting speed and weight change data of the electrode 14, and the position of the formed alloy liquid level in the crystallizer 12 is calculated. Meanwhile, the length sensor 8 and the position sensor 9 feed back the acquired length information and position information to the control system 10 in real time, and the wire feeding length and wire feeding speed data of the wire 17 and the position of the lower end of the insulating sleeve 5 in the crystallizer 12 are obtained through the analysis and processing of the control system 10; then automatically adjusting the lifter 3 according to the alloy liquid level and the position data of the lower end of the insulating sleeve 5 in the crystallizer 12, so that the distance between the insulating sleeve 5 and the alloy liquid level is kept constant; according to the melting speed and weight change data of the electrode 14 and the wire feeding length and speed data of the wire 17, the wire feeding speed of the wire feeding machine 2 is automatically controlled, so that the wire 17 is uniformly fed into the alloy liquid. And after the electroslag is finished, stopping the wire feeding machine 2, withdrawing the insulating sleeve 5, withdrawing the wire simultaneously, enabling the wire 17 and the insulating sleeve 5 to leave the crystallizer 12, and finishing the wire feeding process.
The utility model discloses a control system 10 to the weight information, length information and the positional information who obtains, carry out analysis processes and obtain alloy liquid level height, the wire feeding length, speed and the position of insulation support 5 in crystallizer 12, adjust the wire feeding speed of wire feeding machine 2 and the position of insulation support 5 in real time according to the processing result to reach the effect that the wire feeding is even, insulation support 5 is invariable with the distance of alloy liquid level; at the same time, the insulating sleeve 5 can effectively separate the crystallizer 12 from the electrode 14, thereby avoiding short circuit and damaging the crystallizer 12.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (12)
1. A thread feeding device, comprising: the device comprises a wire feeding machine, a lifter, an insulating sleeve, a length sensor, a position sensor, a weighing sensor and a control system;
the weighing sensor is used for acquiring weight information of an electrode of the electroslag furnace;
the wire feeding machine is arranged above a crystallizer of the electroslag furnace, and the insulating sleeve is arranged on the lifter and is configured to be inserted into the crystallizer of the electroslag furnace;
the length sensor and the position sensor are at least used for acquiring the wire feeding length information of a feeding wire and the position information of the insulating sleeve in a crystallizer of the electroslag furnace respectively;
weighing sensor, length sensor, position sensor, wire feeding machine and lift all with control system connects, control system is used for acquireing at least and handles weight information, length information and position information, and to wire feeding machine and lift feedback control instruction.
2. The wire feeding device of claim 1, wherein the wire feeding device is further provided with at least one set of straightening machine, and the straightening machine is positioned between the wire feeding device and the insulation sleeve.
3. The wire feeding device of claim 2, wherein the straightening machine comprises a mounting plate and a plurality of straightening wheels, the mounting plate is provided with a plurality of adjusting waist-shaped holes, the straightening wheels are mounted on the mounting plate through the adjusting waist-shaped holes, and straightening channels are defined between the straightening wheels.
4. The wire feeding device of claim 1, further comprising a pay-off stand disposed adjacent to the wire feeding device.
5. The wire feeding device of claim 1, further comprising a wire outlet conduit disposed between the wire feeder and the straightener.
6. The wire feeding apparatus of claim 1, wherein the insulating sleeve has a degree of freedom to move up and down in a vertical direction.
7. The wire feeding apparatus of claim 6, wherein the insulating sleeve is configured to guide the wire into a crystallizer of an electroslag furnace.
8. The wire feeding device according to claim 1, wherein the wire feeding machine comprises a wire feeding rack, a transmission device and a guide pipe, the transmission device is mounted on the wire feeding rack, and the transmission device comprises a speed reducer, a wire feeding driving wheel and a wire feeding driven wheel; the wire feeding driving wheel is installed on the speed reducer, the wire feeding driven wheel is installed on one side of the wire feeding driving wheel in a matched mode, a transmission channel is defined between the wire feeding driving wheel and the wire feeding driven wheel, and the guide pipes are installed on two sides of the transmission channel in a matched mode.
9. The thread feeding device as claimed in claim 8, wherein at least two sets of the speed reducer, the thread feeding driving wheel and the thread feeding driven wheel are provided.
10. The wire feeding device of claim 1, wherein the elevator comprises a servo motor, a sliding guide rail, a screw rod, a sliding platform; the servo motor is connected with the screw rod, the screw rod is installed on the sliding guide rail, and the sliding platform is installed on the sliding guide rail.
11. An electroslag furnace comprises a main body and a wire feeding device, wherein the main body comprises an upright post, an electrode and a crystallizer, and the wire feeding device is characterized by comprising a wire feeding machine, a lifter, an insulating sleeve, a length sensor, a position sensor, a weighing sensor and a control system;
the weighing sensor is used for acquiring weight information of the electrode;
the wire feeding machine is arranged above a crystallizer of the electroslag furnace, and the insulating sleeve is arranged on the lifter and is configured to be inserted into the crystallizer;
the length sensor and the position sensor are respectively used for acquiring the wire feeding length information of a feeding wire and the position information of the insulating sleeve in the crystallizer;
weighing sensor, length sensor, position sensor, wire feeding machine and lift all with control system connects, control system is used for acquireing and handling weight information, length information and position information, and to wire feeding machine and lift feedback control instruction.
12. Electroslag furnace according to claim 11, wherein the main body further comprises an electrode holder and a motor, the electrode holder being connected to the motor, the electrode holder being mounted on the pillar, the electrode being mounted on the electrode holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922470991.0U CN211999861U (en) | 2019-12-31 | 2019-12-31 | Wire feeding device and electroslag furnace with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922470991.0U CN211999861U (en) | 2019-12-31 | 2019-12-31 | Wire feeding device and electroslag furnace with same |
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| CN211999861U true CN211999861U (en) | 2020-11-24 |
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| CN201922470991.0U Active CN211999861U (en) | 2019-12-31 | 2019-12-31 | Wire feeding device and electroslag furnace with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115572830A (en) * | 2022-10-27 | 2023-01-06 | 武汉科技大学 | Electroslag remelting furnace with crystallizer wire feeding function |
-
2019
- 2019-12-31 CN CN201922470991.0U patent/CN211999861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115572830A (en) * | 2022-10-27 | 2023-01-06 | 武汉科技大学 | Electroslag remelting furnace with crystallizer wire feeding function |
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