CN2873795Y - Continuous electric slag furnace - Google Patents
Continuous electric slag furnace Download PDFInfo
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- CN2873795Y CN2873795Y CN 200620089551 CN200620089551U CN2873795Y CN 2873795 Y CN2873795 Y CN 2873795Y CN 200620089551 CN200620089551 CN 200620089551 CN 200620089551 U CN200620089551 U CN 200620089551U CN 2873795 Y CN2873795 Y CN 2873795Y
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- crystallizer
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- molten steel
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Abstract
A continuous casting electro slag furnace belongs to the metal electro slag re-melting technical field, which comprises an alternating current power, electrode up-down setups, electrodes, a crystallizer and its supporting setup, a molten steel surface detecting device, a withdrawal setup, an incision device and a control system. The electrode up-down setups are fixed on both sides of the crystallizer. The electrodes are in series. For each of the two electrodes, one terminal is fixed on the across arm of the electrode up-down setup, and connects with the power by cable; the other terminal is positioned inside the crystallizer. The crystallizer is water-cooling in T-shape, i.e. the section of the crystallizer is T-shape. The molten steel surface detecting device is arranged at the small section of the crystallizer. The withdrawal setup and the incision device are in turn fixed on the supporting setup below the small section port of the crystallizer. The control system connects electrically with the across arm of the electrode up-down setup, the molten steel surface detecting device, the withdrawal setup and the incision device. The utility model is characterized in convenient operation, power saving and high efficiency. In addition, the utility model manages to work without intervals.
Description
Technical field
The utility model belongs to metal esr equipment technical field, and particularly a kind of continuous casting type electroslag furnace is applied in the metal refusion and smelting process.
Background technology
Electroslag furnace is the resistance heat that produces when utilizing electric current by slag carries out melting as thermal source a kind of metallurgical equipment.Steel through electroslag furnace is smelted has the purity height, sulphur content is low, non-metallic inclusion is few, surface of steel ingot is smooth, crystallization even compact, metallographic structure and chemical ingredients advantage of uniform.Therefore, electroslag furnace equipment at home and abroad industry such as iron and steel, machinery obtained widely using.Along with the development of electroslag equipment, when melting minor diameter steel ingot, there is following major defect:
1, in the traditional electrical slag hearth smelting process, the steel ingot remelt speed is below 1 or be slightly larger than 1 principle and control according to burn-off rate and resmelting ingot diameter ratio value.For some easy segregation alloys (as tool steel, superalloy etc.), this ratio is low to moderate 0.65～0.75, and like this, speed of melting is just very slow during remelting minor diameter steel ingot, and production efficiency is very low, causes and smelts the appropriate litigation fees height.Moreover, when the steel ingot size that needs remelting during less than 100mm, because the safety clearance will guarantee to operate the time, even electrode diameter is very little, in fact also can't ordinary production.Therefore, although the minor diameter resmelting ingot has tiny pine-tree structure and can be directly rolling, the application diameter still is difficult to less than the resmelting ingot of 300mm at present.
2, the dendritic structure of electroslag remelting steel ingot and steel ingot diameter have direct relation.In general, the steel ingot diameter is big more, and local solidification time is long more, and dendrite interval is big more.When the steel ingot size arrived certain value greatly, the steel ingot center can produce segregation, even loose and shrinkage cavity.For example, rapid tool steel, when the steel ingot size was big, even burn-off rate is very low, it was bigger than normal also can carbide size to occur, and therefore the problem that segregation exceeds standard has had a strong impact on steel product quality.
3, traditional esr adopts the batch production mode of a steel ingot of a remelting, and so not only production efficiency is low, and steel ingot the back step forge or breaking down cogging process in steel ingot removal amount is bigger end to end, the lumber recovery of steel is very low, thereby production cost is also higher.
The utility model content
In order to solve the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of continuous casting type electroslag furnace.It is to combine electroslag remelting technique and continuous casting technology, promptly has the smelting advantage of electroslag furnace, has simultaneously energy-efficient, the advantage such as operation is simple of continuous casting steel machine technology again.
The utility model comprises communication power supply, electrode lifting mechanism, electrode, crystallizer and supporting mechanism thereof, molten steel liquid level detection device, billet withdrawal device, cutting unit and Controlling System, both sides at crystallizer are fixed with electrode lifting mechanism respectively, electrode lifting mechanism comprises two transverse arms and column, transverse arm is fixed on the column, can rotate around column, all be fixed with two electrodes on each transverse arm, electrode is a bipolar series, the electrode of both sides and hoisting appliance alternation thereof, in the working process, one end of two electrodes is separately fixed on the transverse arm of electrode lifting mechanism, and be connected with power supply by cable respectively, the other end places the inside of crystallizer, and electrode solidifies in its underpart again in the inner fusing of crystallizer; Be fixed with supporting mechanism around crystallizer, be equipped with molten steel liquid level detection device at the small cross-section place of crystallizer, its position is 0～200mm apart from the distance h scope of junction, upper and lower cross section, and the radioactive source of molten steel liquid level detection device is isotropic substance Cs137; Billet withdrawal device and cutting unit are fixed on the supporting mechanism of crystallizer small cross-section port below successively, billet withdrawal device comprises niproll and motor, niproll is connected with motor, drive the niproll running by motor, for improving the quality of steel billet, be connected with cable between billet withdrawal device and communication power supply, cutting unit adopts flame cutting, and the distance between two niprolls and the position of cutting unit can be regulated according to user's needs; Controlling System is electrically connected with transverse arm, molten steel liquid level detection device, billet withdrawal device and the cutting unit of electrode lifting mechanism respectively.
For the light-gauge steel billet of the direct melting of the electrode that can use big section, crystallizer in the utility model is a T shape water mold, the cross-sectional shape that is crystallizer is a T shape, its upper and lower can be respectively round shape or square tube shape, the top section area is greater than the lower section area, and electrode melts in the crystallizer upper chambers, and liquid molten drop converges in the crystallizer lower chamber, and being frozen into steel billet, steel billet is continuously pulled out crystallizer by billet withdrawal device simultaneously.
The utility model forms current supply circuit by communication power supply, electrode and slag, adopt the bipolar series mode, it has reduced loop induction reactance, has improved the plant capacity factor, changed heat distribution in the crystallizer again, making steel---the slag interface is away from the consumable electrode termination, deposite metal drop temperature is dripped near liquidus temperature and is converged in the metal pool, makes the metal pool degree of depth and power input irrelevant.
The control process of the utility model Controlling System may further comprise the steps:
(1) beginning;
(2) Controlling System energising;
(3) input processing parameter: comprise and set lower current limit I
1, set upper current limit I
2, the setting stroke L of support arm, the scope H of level allowance fluctuation
0, the steel billet length M of setting;
(4) communication power supply energising;
(5) melting begins;
(6) select the melting transverse arm, testing process parameter, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow detect liquid steel level;
(7) judge that actual liquid level and the absolute value of setting the liquid level difference are whether more than or equal to the scope of level allowance fluctuation, that is: | Δ H| 〉=H
0Whether set up, when | Δ H| 〉=H
0When being false, the liquid steel level that system turned back to for the 6th step detects step; Wherein Δ H is for setting the difference of liquid level and actual liquid level;
(8) as | Δ H| 〉=H
0The time, system carries out casting speed PID and regulates;
(9) system detects actual steel billet length L
3
(10) judge L
3Whether≤M sets up, and works as L
3During≤M, the liquid steel level that system turned back to for the 6th step detects step;
(11) work as L
3When≤M was false, system carried out cutting operation;
(12) after cutting operation finishes, system interrogation: whether work on;
(13) if work on, the smelting of then returning for the 5th step begins step;
(14) if need not work on, then system finishing work.
Melting transverse arm chosen process is in described the 6th step: system carries out transverse arm rise fall of electrodes PID and regulates; Detect the actual current I and setting upper current limit I of transverse arm top electrode
1, lower limit I
2Relation, promptly judge I
1≤ I≤I
2Whether set up, work as I
1≤ I≤I
2When being false, system turns back to the rise fall of electrodes PID regulating step on the transverse arm; Work as I
1≤ I≤I
2During establishment, the traveled distance L of transverse arm judges in system
1Or L
2With the relation of the setting stroke L of transverse arm, promptly judge L
1〉=L or L
2Whether 〉=L sets up, and works as L
1When 〉=L was false, system turned back to the rise fall of electrodes PID regulating step on the transverse arm I, works as L
1When 〉=L set up, system turned back to the step that the melting transverse arm is selected; Perhaps work as L
2When 〉=L was false, system turned back to the rise fall of electrodes PID regulating step on the transverse arm II, works as L
2When 〉=L set up, system turned back to the step that the melting transverse arm is selected; Wherein: L
1Be the traveled distance of transverse arm I, L
2Traveled distance for transverse arm II.
The process of testing process parameter, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow is in described the 6th step: at first system detects process parameter, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow; Whether system prompt reports to the police, if system breaks down, then system passes through sound and light alarm; If system does not report to the police, then whether system prompt stops to smelt; If do not stop to smelt, then turn back to process parameter, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow detection step; If stop to smelt, then cut off communication power supply, system works finishes.
Working process of the present utility model: beginning, Controlling System energising, input processing parameter: set lower current limit I
1, set upper current limit I
2, the setting stroke L of support arm, the scope H of level allowance fluctuation
0, the steel billet length m of setting; The communication power supply energising, electroslag furnace melting begins: add solid-state or liquid slag in crystallizer, system selects two electrodes on one of them transverse arm to carry out work earlier, two electrodes on another transverse arm are in ready state, the transverse arm that promptly rotates an electrode lifting mechanism is to the crystallizer top, the end of electrode is inserted wherein, when electrode forms current supply circuit with slag and power supply, will have electric current to export and pass through slag from power supply.Because slag has certain resistance, has occupied most of pressure drop, thereby in slag bath, form a large amount of heats, with the metal electrode fusing of inserting wherein.The molten metal drop drips from electrode tip, passes slag and converges in the metal pool, solidifies the formation steel billet gradually under the pressure cooling of crystallizer, and steel billet is pulled out crystallizer continuously by billet withdrawal device simultaneously, and steel billet is moved regular length cutting to.In whole process, molten steel liquid level detection device is imported the detection signal of liquid steel level height into Controlling System, and Controlling System melts below fast, that pulling rate is controlled at the liquid level of metal pool junction, the upper and lower cross section of crystallizer all the time by controlling.Treat two electrodes on the transverse arm molten to the greatest extent after, change the electrode on another transverse arm, continuously pull out to guarantee steel billet, replenish slag charge in the production process as required, to realize continuous production.In process of production, Controlling System is controlled whole production process, and in working process, the transverse arm of counter electrode hoisting appliance is selected, and after guaranteeing molten the using up of electrode in the stove, in time changes; Process parameter detection, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow are detected simultaneously, and when breaking down, system reports to the police automatically.
Use the utility model to compare with the little square billet production technology of traditional remelting, the key distinction is:
(1) saved production processes such as cogging, breaking down, shortened the production cycle, improved production efficiency, recovery rate of iron, energy efficient reduces cost.
(2) adopt bipolar series to constitute current supply circuit, have makings, operation is all very simple, advantages such as saves energy have been avoided sealing in the crystallizer conduction technology and technological difficulties such as insulation.
(3) adopting radioactive source is that the molten steel liquid level detection device of isotropic substance Cs137 detects liquid steel level, with the radioactive source of external employing is that the molten steel liquid level detection device of Co60 is compared, have advantages such as quantity of radiant energy is low, long half time, more accurate, rapid than traditional thermocouple method, eddy-current method.
(4) exchange electrode, technology realization non-stop runs such as throwing, online cutting have continuously been adopted.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a Controlling System program control flow chart of the present utility model;
1. communication power supplies among the figure, 2. transverse arm I, 3. column, 4. electrode, 5. crystallizer, 6. slag, 7. molten steel liquid level detection device, 8. metal pool, 9. billet withdrawal device, 10. cutting unit, 11. steel billets, 12. supporting mechanism, 13. Controlling System, 14. transverse arm II, I are actual current, I
1For setting lower current limit, I
2For setting upper current limit, L is the setting stroke of transverse arm, L
1Be the traveled distance of transverse arm I, L
2Be the traveled distance of transverse arm II, H
0Be the scope of level allowance fluctuation, Δ H is for setting liquid level and actual liquid level difference, the steel billet length of M for setting, L
3Be actual steel billet length.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment 1: as shown in Figure 1, the utility model comprises communication power supply 1, electrode lifting mechanism, electrode 4, crystallizer 5 and supporting mechanism 12 thereof, molten steel liquid level detection device 7, billet withdrawal device 9, cutting unit 10 and Controlling System 13, electrode lifting mechanism comprises transverse arm, column 3, electrode 4 is a bipolar series, two electrodes, one end is separately fixed on the transverse arm of electrode lifting mechanism, and be connected with power supply 1 by cable respectively, the other end places the inside of crystallizer 5, and electrode 4 solidifies in its underpart again in the fusing of crystallizer 5 tops; Crystallizer 5 is a T shape water mold, its top is round shape, the bottom is a square tube shape, around crystallizer 5, be fixed with supporting mechanism 12, be equipped with molten steel liquid level detection device 7 in junction, crystallizer 5 upper and lower cross section, the radioactive source of molten steel liquid level detection device 7 is isotropic substance Cs137, adopts rays method that liquid steel level is detected; Billet withdrawal device 9 and cutting unit 10 are fixed on the supporting mechanism 12 of crystallizer 5 small cross-section ports below successively, and billet withdrawal device 9 comprises niproll and motor, and niproll is connected with motor, drive the niproll running by motor, and cutting unit 10 adopts flame cutting; Controlling System 13 is electrically connected with the transverse arm and the cutting unit 10 of electrode lifting mechanism, molten steel liquid level detection device 7, billet withdrawal device 9 respectively, and Controlling System 13 is controlled the operation of electroslag furnace by the signal that molten steel liquid level detection device 7 detects.
Its operating process, according to the following steps:
(1) beginning;
(2) Controlling System energising;
(3) input processing parameter: comprise and set lower current limit I
1Be 4000A, set upper current limit I
2Be 4200A, the setting stroke L of support arm is 3m, the scope H of level allowance fluctuation
0Be 5mm, the steel billet length M of setting is 4m;
(4) communication power supply energising;
(5) melting begins;
(6) select the melting transverse arm, testing process parameter, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow detect liquid steel level;
(7) judge that actual liquid level and the absolute value of setting the liquid level difference are whether more than or equal to the scope of level allowance fluctuation, that is: | Δ H| 〉=H
0Whether set up, when | Δ H| 〉=H
0When being false, the liquid steel level that system turned back to for the 6th step detects step; Wherein Δ H is for setting the difference of liquid level and actual liquid level;
(8) as | Δ H| 〉=H
0The time, system carries out casting speed PID and regulates;
(9) system detects actual steel billet length L
3
(10) judge L
3Whether≤M sets up, and works as L
3During≤M, the liquid steel level that system turned back to for the 6th step detects step;
(11) work as L
3When≤M was false, system carried out cutting operation;
(12) after cutting operation finishes, system interrogation: whether work on;
(13) if work on, the smelting of then returning for the 5th step begins step;
(14) if need not work on, then system finishing work.
Melting transverse arm chosen process is in described the 6th step: system carries out transverse arm rise fall of electrodes PID and regulates; Detect the actual current I and setting upper current limit I of transverse arm top electrode
1, lower limit I
2Relation, promptly judge I
1≤ I≤I
2Whether set up, work as I
1≤ I≤I
2When being false, system turns back to the rise fall of electrodes PID regulating step on the transverse arm; Work as I
1≤ I≤I
2During establishment, the traveled distance L of transverse arm judges in system
1Or L
2With the relation of the setting stroke L of transverse arm, promptly judge L
1〉=L or L
2Whether 〉=L sets up, and works as L
1When 〉=L was false, system turned back to the rise fall of electrodes PID regulating step on the transverse arm I, works as L
1When 〉=L set up, system turned back to the step that the melting transverse arm is selected; Perhaps work as L
2When 〉=L was false, system turned back to the rise fall of electrodes PID regulating step on the transverse arm II, works as L
2When 〉=L set up, system turned back to the step that the melting transverse arm is selected; Wherein: L
1Be the traveled distance of transverse arm I, L
2Traveled distance for transverse arm II.
The process of testing process parameter, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow is in described the 6th step: at first system detects process parameter, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow; Whether system prompt reports to the police, if system breaks down, then system passes through sound and light alarm; If system does not report to the police, then whether system prompt stops to smelt; If do not stop to smelt, then turn back to process parameter, Accident of Transformer warning amount, leaving water temperature(LWT) pressure and flow detection step; If stop to smelt, then cut off communication power supply, system works finishes.
Embodiment 2: as shown in Figure 1, the utility model comprises communication power supply 1, electrode lifting mechanism, electrode 4, crystallizer 5 and supporting mechanism 12 thereof, molten steel liquid level detection device 7, billet withdrawal device 9, cutting unit 10 and Controlling System 13, electrode lifting mechanism comprises transverse arm, column 3, electrode 4 is a bipolar series, two electrodes, one end is separately fixed on the transverse arm of electrode lifting mechanism, and be connected with power supply 1 by cable respectively, the other end places the inside of crystallizer 5, and electrode 4 solidifies in its underpart again in the fusing of crystallizer 5 tops; Crystallizer 5 is a T shape water-cooled copper crystallizer, its upper and lower is square tube shape, around crystallizer 5, be fixed with supporting mechanism 12, small cross-section place at crystallizer 5 is equipped with molten steel liquid level detection device 7, its position is 200mm apart from the distance h of junction, upper and lower cross section, the radioactive source of molten steel liquid level detection device 7 is isotropic substance Cs137, adopts rays method that liquid steel level is detected; Billet withdrawal device 9 and cutting unit 10 are fixed on the supporting mechanism 12 of crystallizer 5 small cross-section ports below successively, and billet withdrawal device 9 comprises niproll and motor, and niproll is connected with motor, drive the niproll running by motor, and cutting unit 10 adopts flame cutting; Controlling System 13 is electrically connected with transverse arm, molten steel liquid level detection device 7, billet withdrawal device 9 and the cutting unit 10 of electrode lifting mechanism respectively, and Controlling System 13 is controlled the operation of electroslag furnace by the signal that molten steel liquid level detection device 7 detects.Its operating process is imported processing parameter with embodiment 1: comprise and set lower current limit I
1Be 3800A, set upper current limit I
2Be 4000A, the setting stroke L of support arm is 3m, the scope H of level allowance fluctuation
0Be 5mm, the steel billet length M of setting is 6m.
Embodiment 3: as shown in Figure 1, the utility model comprises communication power supply 1, electrode lifting mechanism, electrode 4, crystallizer 5 and supporting mechanism 12 thereof, molten steel liquid level detection device 7, billet withdrawal device 9, cutting unit 10 and Controlling System 13, electrode lifting mechanism comprises transverse arm, column 3, electrode 4 is a bipolar series, two electrodes, one end is separately fixed on the transverse arm of electrode lifting mechanism, and be connected with power supply 1 by cable respectively, the other end places the inside of crystallizer 5, and electrode 4 solidifies in its underpart again in the fusing of crystallizer 5 tops; Crystallizer 5 is a T shape water-cooled copper crystallizer, its upper and lower is round shape, around crystallizer 5, be fixed with supporting mechanism 12, small cross-section place at crystallizer 5 is equipped with molten steel liquid level detection device 7, its position is 100mm apart from the distance h of junction, upper and lower cross section, the radioactive source of molten steel liquid level detection device 7 is isotropic substance Cs137, adopts rays method that liquid steel level is detected; Billet withdrawal device 9 and cutting unit 10 are fixed on the supporting mechanism 12 of crystallizer 5 small cross-section ports below successively, billet withdrawal device 9 comprises niproll and motor, niproll is connected with motor, drive the niproll running by motor, be connected with cable between the niproll of billet withdrawal device and communication power supply, cutting unit 10 adopts flame cutting; Controlling System 13 is electrically connected with transverse arm, molten steel liquid level detection device 7, billet withdrawal device 9 and the cutting unit 10 of electrode lifting mechanism respectively, and Controlling System 13 is controlled the operation of electroslag furnace by the signal that molten steel liquid level detection device 7 detects.Its operating process is imported processing parameter with embodiment 1: comprise and set lower current limit I
1Be 5000A, set upper current limit I
2Be 5200A, the setting stroke L of support arm is 3m, the scope H of level allowance fluctuation
0Be 5mm, the steel billet length M of setting is 5m.
Claims (5)
1, a kind of continuous casting type electroslag furnace, comprise communication power supply, electrode lifting mechanism, electrode, crystallizer and supporting mechanism thereof, molten steel liquid level detection device, billet withdrawal device, cutting unit and Controlling System, it is characterized in that being fixed with electrode lifting mechanism respectively in the both sides of crystallizer, electrode is a bipolar series, one end of two electrodes is separately fixed on the transverse arm of electrode lifting mechanism, and be connected with power supply by cable respectively, the other end places the inside of crystallizer, crystallizer is a T type water mold, the cross-sectional shape that is crystallizer is the T type, small cross-section place at crystallizer is equipped with molten steel liquid level detection device, billet withdrawal device and cutting unit are fixed on the supporting mechanism of crystallizer small cross-section port below successively, Controlling System respectively with the transverse arm of electrode lifting mechanism, molten steel liquid level detection device, billet withdrawal device and cutting unit are electrically connected.
2, according to shining the described continuous casting type electroslag furnace of claim 1, the upper and lower that it is characterized in that described T type water mold is round shape or square tube shape, and the top section area is greater than the lower section area.
3, according to shining the described continuous casting type electroslag furnace of claim 1, the radioactive source that it is characterized in that described molten steel liquid level detection device is isotropic substance Cs137, and its position is 0～200mm apart from the distance h scope of junction, the upper and lower cross section of crystallizer.
4, according to shining the described continuous casting type electroslag furnace of claim 1, it is characterized in that described billet withdrawal device comprises niproll and motor, niproll is connected with motor, and cutting unit is a flame cutting, and the distance between two niprolls and the position of cutting unit are regulated according to user's needs.
5,, it is characterized in that between described billet withdrawal device and communication power supply, being connected with cable according to according to claim 1 described continuous casting type electroslag furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089551 CN2873795Y (en) | 2006-03-07 | 2006-03-07 | Continuous electric slag furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089551 CN2873795Y (en) | 2006-03-07 | 2006-03-07 | Continuous electric slag furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2873795Y true CN2873795Y (en) | 2007-02-28 |
Family
ID=37780390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620089551 Expired - Lifetime CN2873795Y (en) | 2006-03-07 | 2006-03-07 | Continuous electric slag furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2873795Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562921B (en) * | 2009-04-20 | 2011-06-22 | 成都高威节能科技有限公司 | Method for treating arching problem of charging by automatic control system of yellow phosphorus furnace electrode |
| CN103406503A (en) * | 2013-07-16 | 2013-11-27 | 辽宁科技大学 | Method for producing high-quality large steel ingot and device thereof |
| CN103757436A (en) * | 2013-12-31 | 2014-04-30 | 衡阳市金则利特种合金有限公司 | Production process of special steel ingot pullout type continuous directionally-crystallized electroslag ingot with small micro-fracture surface |
| CN107287436A (en) * | 2016-04-13 | 2017-10-24 | 覃远信 | Single upright column and double conductive cross arm stripping formula electroslag remelting furnace apparatus and remelting method |
| CN109047687A (en) * | 2018-10-18 | 2018-12-21 | 东北大学 | A kind of dual alloy synchronizes the device and method of the large-scale uniformly ingot casting of remelting preparation |
| CN114769599A (en) * | 2022-03-31 | 2022-07-22 | 西北有色金属研究院 | Preparation method of electrode for molybdenum alloy electron beam melting |
-
2006
- 2006-03-07 CN CN 200620089551 patent/CN2873795Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562921B (en) * | 2009-04-20 | 2011-06-22 | 成都高威节能科技有限公司 | Method for treating arching problem of charging by automatic control system of yellow phosphorus furnace electrode |
| CN103406503A (en) * | 2013-07-16 | 2013-11-27 | 辽宁科技大学 | Method for producing high-quality large steel ingot and device thereof |
| CN103757436A (en) * | 2013-12-31 | 2014-04-30 | 衡阳市金则利特种合金有限公司 | Production process of special steel ingot pullout type continuous directionally-crystallized electroslag ingot with small micro-fracture surface |
| CN107287436A (en) * | 2016-04-13 | 2017-10-24 | 覃远信 | Single upright column and double conductive cross arm stripping formula electroslag remelting furnace apparatus and remelting method |
| CN109047687A (en) * | 2018-10-18 | 2018-12-21 | 东北大学 | A kind of dual alloy synchronizes the device and method of the large-scale uniformly ingot casting of remelting preparation |
| CN114769599A (en) * | 2022-03-31 | 2022-07-22 | 西北有色金属研究院 | Preparation method of electrode for molybdenum alloy electron beam melting |
| CN114769599B (en) * | 2022-03-31 | 2023-07-18 | 西北有色金属研究院 | Preparation method of molybdenum alloy electrode for electron beam melting |
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