CN103940225A - Coaxially-powered self-consuming electric arc vacuum skull furnace - Google Patents
Coaxially-powered self-consuming electric arc vacuum skull furnace Download PDFInfo
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- CN103940225A CN103940225A CN201410165185.1A CN201410165185A CN103940225A CN 103940225 A CN103940225 A CN 103940225A CN 201410165185 A CN201410165185 A CN 201410165185A CN 103940225 A CN103940225 A CN 103940225A
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- crucible
- electric arc
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- conducting rod
- ear
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Abstract
A coaxially-powered self-consuming electric arc vacuum skull furnace comprises a red-copper crucible assembly and coaxial conducting rod assemblies. Two sets of conducting lugs, supporting legs and spring mechanisms are symmetrically installed on a flange on the end face of a red-copper crucible. The two coaxial conducting rod assemblies are driven by two out-furnace cylinders to move. The conducting rod assemblies are composed of supporting rods, conducting rods, water-cooling steel bushings and conducting rod control cylinders. Conducting flanges of the two sets of conducting rods press against the flange surface of the crucible to produce a certain extrusion stress. According to the coaxially-powered self-consuming electric arc vacuum skull furnace, the power supply mode of an existing domestic skull furnace crucible is changed, symmetrical power supply is adopted, and therefore magnetic fields around a smelting electric arc are uniform; in this way, the problems that a red-copper crucible is broken down by the electric arc and then leaks water and produces steam and oxyhydrogen explosion due to magnetic bias are eliminated. Meanwhile, the crucible can be integrally moved out of a furnace chamber, and therefore the vacuum skull furnace is quite convenient to install, clean and maintain.
Description
Technical field
The invention belongs to the improvement of the vacuum consumable electric arc skull crucible in the casting technology field of the rare metals such as titanium, zirconium.
Background technology
Vacuum consumable electric arc skull crucible outside Present Domestic has plenty of by crucible water jacket both sides tipping pitman in power supply mode powers; Have plenty of by crucible water jacket tipping pitman one side and power.Tipping pitman should be given crucible water flowing, power supply, also wants carry-over moment, and will repeatedly dismantle again, above-mentioned these structures and power supply mode all exist stove internal magnetic field skewness phenomenon, cause in fusion process Distribution of Magnetic Field inhomogeneous, the impact that electric arc is subject to magnetic field force produces arc blow, and cold-crucible is easily by arc through, and then generation steam and hydrogen detonation, very dangerous, and affect manufacturing schedule, for enterprise causes very large economic loss.
Summary of the invention
The vacuum consumable electric arc skull crucible that the object of this invention is to provide a kind of supply power coaxially.
The vacuum consumable electric arc skull crucible of supply power coaxially, there is crucible, it is symmetrically installed with crucible conduction ear, support ear at crucible both sides end face flange, support ear is connected with crucible end face flange, conduction ear is positioned at support ear top and is passed and be connected as a single entity by connecting rod, between connecting rod bottom and support ear, spring mechanism is housed, one group two coaxial conductive bar assemblies are positioned at connecting rod top and under the driving of two groups of stove outside cylinders, move up and down to realize and are connected with connecting rod or separated.
Conducting rod assembly comprises that support bar, spherical shell, steel ball, fairlead, crane, lift cylinder, conductive anode rod, water-cooled steel bushing, conduction flange, water-cooled cable, clamping cylinder form; Support bar is positioned at center as the support of whole assembly, and conductive anode rod is enclosed within outside support bar, and clamping cylinder is housed on support bar top and clamping cylinder is connected with conducting rod upper end, and water cooled steel is sleeved on conductive anode rod outside; Connecting rod upper end is connected with conductive anode rod lower end by spherical shell, steel ball, fairlead, pneumatic dop.
The present invention adopts rational crucible power supply mode, be supply power coaxially, the outer stove internal magnetic field of stove is evenly distributed, thereby reach, eliminate the impact that electric arc in vacuum consumable electric arc skull crucible fusion process is subject to surrounding magnetic field, easily puncture the drawbacks such as crucible, and operation, easy to maintenance in production process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.Figure number explanation: 1-water-cooled cable; 2-upper furnace body; 3-auxiliary electrode; 4-consutrode; 5-support bar; 6-clamping cylinder; 7-conductive anode rod; 8-hold-down ring; 9-water-cooled steel bushing; 10-furnace shell; 11-aqueduct; 12-spherical shell; 13-steel ball; 14-fairlead; The pneumatic dop of 15-, 16-conducts electricity flange; 17-crucible conduction ear; 18-support ear; 19-connecting rod; 20-cooling jacket; 21-water proof cover; 22-red copper crucible.
Fig. 2 is Fig. 1 side view.2-1 lead wherein; 2-2 crane; 2-3 lift cylinder.
Fig. 3 is partial enlarged drawing in Fig. 1 (crucible conduction ear and conducting rod compress figure).
The specific embodiment
As Figure 1-3, specifically, supply power coaxially skull crucible structure of the present invention comprises crucible assembly and coaxial conductive bar assembly.Crucible assembly is mainly comprised of red copper crucible, cooling jacket and water proof cover; End face flange at red copper crucible is symmetrically installed with two groups of crucible conductions ear, support ear and spring mechanisms.Coaxial conductive bar assembly comprises two groups of symmetrical conducting rod assemblies of installing, and these two groups of conducting rod assemblies move under the effect of two stove outside cylinders; Conducting rod assembly comprises support bar, spherical shell, steel ball, fairlead, crane, lift cylinder, guide post, conducting rod, water-cooled steel bushing, conduction flange, water-cooled cable, clamping cylinder.Described coaxial conductive bar assembly by and spring mechanism form; Conducting rod assembly is comprised of support bar, conducting rod, water-cooled steel bushing and conducting rod control cylinder; Conducting rod modular construction is inside and outside nesting type structure.Conducting rod is exterior is furnished with a stainless steel water jacket.The conduction flange of two groups of conducting rods and crucible flange face compress and produce certain extrusion stress.Lift cylinder is arranged on vacuum melting outdoor, is connected by crane with bracing frame, and the action of crane is limited by guide post.
Crucible arrives assigned address, under the driving of lift cylinder, two groups of conducting rod assemblies move downward, after arriving stroke, clamping cylinder drives conducting rod to move downward, fairlead is to steel ball effect, steel ball blocks connecting rod, crucible is produced to lifting force upwards simultaneously, conduction flange and the crucible flange face conduction of combining closely; Conducting rod overcoat one stainless steel water-cooled cover, the outer one end of conducting rod stove is connected with water-cooled cable.When the fusing of titanium liquid reaches fusing amount, cut off fusing power supply, clamping cylinder piston moves up and drives conducting rod to promote simultaneously, connecting rod is subject to spring action, steel ball is pushed back to initial position, and coaxial conductive bar assembly, by lift cylinder fast lifting, makes crucible overturn in time, pour into a mould.
Vacuum consumable electric arc skull crucible fusing operating mode process is: under vacuum environment, the titanium consutrode being melted is connect to negative pole, crucible connects positive pole, through a DC source, make two interpolars produce arc discharge, cation is got to negative electrode (consutrode), and electronics is got to (crucible) on anode, electric energy is transformed into heat energy and makes material melting, as shown in Figure 1.During fusing, liquid titanium is with the form of molten drop, by the high-temperature electric arc district of approximately 4700 ℃, drop onto in crucible molten bath, when molten drop keeps liquid in the process of drippage and in water jacketed copper crucible, a series of physical-chemical reaction occurs, under the effect of high arc temperature heating, the continuous fusing consumption of consutrode, constantly rising in molten bath, then pours motlten metal liquid into be condensed into foundry goods in mould process.
Claims (3)
1. the vacuum consumable electric arc skull crucible of supply power coaxially, there is crucible (22), it is characterized in that being symmetrically installed with crucible conduction ear (17) at crucible (22) both sides end face flange, support ear (18), support ear (18) is connected with crucible (22) end face flange, conduction ear (17) is positioned at support ear (18) top and is passed and be connected as a single entity by connecting rod (19), between connecting rod (19) bottom and support ear (18), spring mechanism is housed, one group two coaxial conductive bar assemblies are positioned at connecting rod (19) top and under the driving of two groups of stove outside cylinders, move up and down to realize and are connected with connecting rod (19) or separation.
2. the vacuum consumable electric arc skull crucible of supply power coaxially according to claim 1, is characterized in that conducting rod assembly comprises that support bar (5), spherical shell (12), steel ball (13), fairlead (14), crane (2-2), lift cylinder (2-3), conductive anode rod (7), water-cooled steel bushing (9), conduction flange (16), water-cooled cable (1), clamping cylinder (6) form; Support bar (5) is positioned at center as the support of whole assembly, conductive anode rod (7) is enclosed within outside support bar (5), clamping cylinder (6) is housed on support bar (5) top and clamping cylinder (6) is connected with conducting rod (7) upper end, and water-cooled steel bushing (9) is contained in conductive anode rod (7) outside; Connecting rod (19) upper end is connected with conductive anode rod lower end by spherical shell (12), steel ball (13), fairlead (14), pneumatic dop (15).
3. the vacuum consumable electric arc skull crucible of supply power coaxially according to claim 2, it is characterized in that lift cylinder (2-3) is arranged on vacuum melting outdoor, be connected by crane (2-2) with bracing frame, the action of crane (2-2) is limited by guide post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165185.1A CN103940225B (en) | 2014-04-23 | 2014-04-23 | The vacuum consumable electric arc skull crucible of supply power coaxially |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165185.1A CN103940225B (en) | 2014-04-23 | 2014-04-23 | The vacuum consumable electric arc skull crucible of supply power coaxially |
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| Publication Number | Publication Date |
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| CN103940225A true CN103940225A (en) | 2014-07-23 |
| CN103940225B CN103940225B (en) | 2015-12-30 |
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| CN201410165185.1A Expired - Fee Related CN103940225B (en) | 2014-04-23 | 2014-04-23 | The vacuum consumable electric arc skull crucible of supply power coaxially |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105063377A (en) * | 2015-08-10 | 2015-11-18 | 航天海鹰(哈尔滨)钛业有限公司 | Gravity clamping electricity conducting device for skull furnace |
| CN105783530A (en) * | 2016-04-26 | 2016-07-20 | 西安聚能装备技术有限公司 | Clamping and electricity-conducting device for auxiliary electrode of vacuum arc remelting furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE567126A (en) * | ||||
| CN2757077Y (en) * | 2004-11-29 | 2006-02-08 | 胡宗式 | Large-scale copper crucible without welding seam for vacuum consumable electric arc furnace |
| CN201440033U (en) * | 2009-02-27 | 2010-04-21 | 比亚迪股份有限公司 | Vacuum melting and blanking device |
| CN203824308U (en) * | 2014-04-23 | 2014-09-10 | 宝鸡市凯博真空科技有限公司 | Vacuum self-consuming arc kish furnace for coaxial power supply |
-
2014
- 2014-04-23 CN CN201410165185.1A patent/CN103940225B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE567126A (en) * | ||||
| CN2757077Y (en) * | 2004-11-29 | 2006-02-08 | 胡宗式 | Large-scale copper crucible without welding seam for vacuum consumable electric arc furnace |
| CN201440033U (en) * | 2009-02-27 | 2010-04-21 | 比亚迪股份有限公司 | Vacuum melting and blanking device |
| CN203824308U (en) * | 2014-04-23 | 2014-09-10 | 宝鸡市凯博真空科技有限公司 | Vacuum self-consuming arc kish furnace for coaxial power supply |
Non-Patent Citations (3)
| Title |
|---|
| 李少华: "50kg真空电弧炉设备的研制", 《有色金属》, 31 August 2007 (2007-08-31) * |
| 汶宏伟: "真空自耗电弧炉熔炼时的电热计算与技术分析", 《真空》, vol. 44, no. 2, 31 May 2007 (2007-05-31) * |
| 王健: "一种新型全自动称重真空自耗电弧炉的研制", 《钛工业进展》, vol. 25, no. 3, 30 June 2008 (2008-06-30) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105063377A (en) * | 2015-08-10 | 2015-11-18 | 航天海鹰(哈尔滨)钛业有限公司 | Gravity clamping electricity conducting device for skull furnace |
| CN105783530A (en) * | 2016-04-26 | 2016-07-20 | 西安聚能装备技术有限公司 | Clamping and electricity-conducting device for auxiliary electrode of vacuum arc remelting furnace |
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| Publication number | Publication date |
|---|---|
| CN103940225B (en) | 2015-12-30 |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Kaidao Inventor after: Gao Hui Inventor before: Ma Kaidao Inventor before: Gao Hui Inventor before: Dang Lei |
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Free format text: CORRECT: INVENTOR; FROM: MA KAIDAO GAO HUI DANG LEI TO: MA KAIDAO GAO HUI |
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| C14 | Grant of patent or utility model | ||
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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: 20151230 Termination date: 20160423 |