CN105624419A - Vacuum arc remelting furnace - Google Patents
Vacuum arc remelting furnace Download PDFInfo
- Publication number
- CN105624419A CN105624419A CN201610132484.4A CN201610132484A CN105624419A CN 105624419 A CN105624419 A CN 105624419A CN 201610132484 A CN201610132484 A CN 201610132484A CN 105624419 A CN105624419 A CN 105624419A
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- CN
- China
- Prior art keywords
- stainless steel
- steel water
- water jacket
- vacuum arc
- arc remelting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/20—Arc remelting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a vacuum arc remelting furnace. The vacuum arc remelting furnace comprises a movable burner and a static smelting station. The movable burner is connected with a driving support through a supporting mechanism. An electric conduction material rod penetrates through the center of the movable burner from top to bottom and is connected with the movable burner. The static smelting station comprises a copper crystallizer and a stainless steel water cooling jacket. The copper crystallizer is movably placed in the stainless steel water cooling jacket. The stainless steel water cooling jacket is fixed below the movable burner. A cable is twined around the outside surface of the stainless steel water cooling jacket. According to the vacuum arc remelting furnace, in the smelting process, electric currents pass through the cable twined around the outside surface of the stainless steel water cooling jacket of the static smelting station, thus a magnetic field is generated, and transverse force is exerted on metal smelted in a smelting cavity. Therefore, manual control over magnetic field stirring in the smelting cavity is achieved, the smelting precision is improved, and the available quantity of products is increased.
Description
Technical field
The present invention relates to a kind of vacuum melting furnace for Metal Melting field.
Background technology
Vacuum arc remelting is that one utilizes electric arc to make thermal source, the vacuum melting technology of melting metal under vacuum.
Without, under slag and vacuum condition, metal electrode melts rapidly under the high temperature action of direct current arc and carries out resolidification in water-cooled copper crystallizer. To transition in crystallizer and kept in a crystallizer and in the process solidified by the arc zone of nearly 5000K when liquid metal forms molten drop with thin layer form, there is a series of physical-chemical reactions, make metal obtain refining, thus reach purification metal, improve crystalline texture, put forward high performance object.
But adopt such vacuum melting technology, fusion process can produce uncontrollable magnetic field in melting chamber and stir, cannot in melting chamber just crystal in melting carry out Artificial Control, the precision of crystal melting and quality cannot ensure.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of vacuum arc remelting furnace, its compact construction, it is possible in the process carrying out vacuum melting, farthest reduce uncontrollable magnetic field and stir, it is to increase the precision of Metal Melting.
A kind of technical scheme realizing above-mentioned purpose is: a kind of vacuum arc remelting furnace, comprises movable stove head and static melting station.
By supporting, mechanism is connected described movable stove head with driving support;
A conductive material bar runs through the central authorities of described movable stove head from top to bottom, and is connected with described movable stove head;
Described conductive material bar is connected with driving support;
Described static melting station comprises copper crystallizer and stainless steel water jacket;
Described copper crystallizer is movably placed in described stainless steel water jacket, and described stainless steel water jacket is fixed on the lower section of described travelling oven head;
Described stainless steel water jacket is barrel-shaped; The described stainless steel water-cooled portion of putting is provided with a water coolant water inlet; The bottom of described stainless steel water jacket is provided with a water coolant flowing water Valve;
The outer surface of described stainless steel water jacket is wound with cable.
Further, described stainless steel water jacket is connected with rectifier power system and auxiliary water system.
Further, described cable is single core nylon sheath cable.
Further, described cable is adopt duplex winding coil winding to carry out coiling at the winding method of the outer surface of described stainless steel water jacket.
A kind of vacuum arc remelting furnace of the present invention, comprises movable stove head and static melting station; It is connected with driving support by supporting mechanism; A conductive material bar runs through the central authorities of described movable stove head from top to bottom, and is connected with described movable stove head; Described static melting station comprises copper crystallizer and stainless steel water jacket; Described copper crystallizer is movably placed in described stainless steel water jacket, and described stainless steel water jacket is fixed on the lower section of described travelling oven head; The outer surface of described stainless steel water jacket is wound with cable. A kind of vacuum arc remelting furnace of the present invention is in fusion process, the cable being wound around at the stainless steel water jacket outer surface at static melting station passes through electric current, thus produce magnetic field, in melting chamber just melting metal apply transverse force, thus realize being stirred in the magnetic field in melting chamber carrying out Artificial Control, improving melting precision, what add product can consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of vacuum arc remelting furnace of the present invention.
Embodiment
In order to can better the technical scheme of the present invention be understood, below by specifically embodiment and be described in detail by reference to the accompanying drawings:
Refer to Fig. 1, a kind of vacuum arc remelting furnace of the present invention, comprise movable stove head 1 and static melting station 6.
By supporting, mechanism 8 is connected movable stove head 1 with driving support 3.
Conductive material bar 2 runs through the central authorities of movable stove head 1 from top to bottom, and is connected with movable stove head 1. Conductive material bar 2 is connected with driving support 3 simultaneously.
Static melting station 6 comprises copper crystallizer 4 and stainless steel water jacket 5.
Copper crystallizer 4 is movably placed in stainless steel water jacket 5, and stainless steel water jacket 5 is fixed on the lower section of travelling oven head 1.
Stainless steel water jacket 5 is barrel-shaped; Stainless steel water jacket 5 top is provided with a water coolant water inlet; The bottom of stainless steel water jacket 5 is provided with a water coolant flowing water Valve.
The outer surface of stainless steel water jacket 5 is wound with cable 51. Stainless steel water jacket 5 is connected with rectifier power system and auxiliary water system 7. Cable 51 is single core nylon sheath cable. Cable 51 is adopt duplex winding coil winding to carry out coiling at the winding method of the outer surface of stainless steel water jacket 5.
Before starting the vacuum arc remelting furnace of the present invention, first electrode is put into copper crystallizer 4. It is good that special steel and steel alloy electrode are poured into a mould under air or under vacuum before being; For active metal as titanium, electrode is suppressed by titanium sponge or by electron beam furnace, plasma heating furnace melting out in advance. By driving, the traction of support 3 is placed to copper crystallizer 4 to movable stove head 1, and the vacuum melting room of upper formation one sealing, electrode is clamped on conductive material bar 2, and conductive material bar 2 can promote electrode.
Once vacuum melting room is formed, so that it may activate direct supply. Controlling System regulates the high current arc between consumable electrode (negative pole) and copper crystallizer 4 base plate automatically, forms rapidly a metal pool on base plate. To be kept accurate arc length between smelting electrode and metal pool (arc gap), and set up the melting rate that can control. Metal molten drop is dripped into molten bath by arc gap, and is exposed to the arc region of vacuum environment and extreme temperatures. To eliminate insoluble gas, volatilization residual impurity, improve oxide compound degree of cleaning. Adopting copper crystallizer 4 to be placed in stainless steel water jacket 5, the metal pool that metal molten drop is formed solidifies with oriented approach. If molten speed and welding arc control must be got well, this kind of controlled directional freeze will prevent serious segregation and reduce microsegregation, thus improve the performance solidifying spindle. Arrive the melting later stage, owing to having controlled heat-sealing top well, can consumption by what greatly increase product.
The cable 51 of stainless steel water jacket 5 outer surface adopts duplex winding coil winding, and the way utilizing winding in parallel to reduce loss pressure drop carries out coiling. Design theory is according to researching and developing based on Biot-Savart law. In magnetostatics, Biot-Savart law is (English: Biot-SavartLaw) to describe the magnetic field that current elements is put arbitrarily P place and excited in space.
The size of magnetic induction density dB that law text description: current elements Idl produces at space point P place is directly proportional to the size of current elements Idl, it is directly proportional to the sine of the angle between current elements Idl place place to the position vector and current elements Idl of P point, and square being inversely proportional to of the distance put with current elements Idl to P. Biot-Savart law is caused by the experiment of H.C. oersted, and this experiment shows, the reactive force of magnetic pole is transverse force by long straight current carrying conductor. In order to disclose electric current to the general quantitatively rule of magnetic pole reactive force, J.B. Biot and F. Sa cut down you and think that the reactive force of magnetic pole also should be perpendicular to current elements and the plane of magnetic pole formation by current elements, are namely also transverse forces. They bend current carrying conductor to the experiment of the reactive force of magnetic pole by long direct sum, have drawn reactive force and the relation at Distance geometry bending angle.
Having had above theoretical basis, we are according to practical situation, first draw the magnetic field power size needed for agitation of molten steel, calculate voltage according to magnetic field power, electric current, finally determine cable 51 specification.
The present invention adopts electrode weighing system data to improve process control precision; Smelting furnace adopts the proprietary technology of coaxial conductive design, decreases to maximum degree the stirring in uncontrollable magnetic field; The control of complete computerize ensure that the consistence of quality product, and operation of equipment simultaneously is very convenient.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and not it is used as limitation of the invention, as long as in the spirit of the present invention, to the change of the above embodiment, modification all by the Claims scope dropping on the present invention.
Claims (4)
1. a vacuum arc remelting furnace, comprises movable stove head and static melting station, it is characterised in that,
By supporting, mechanism is connected described movable stove head with driving support;
A conductive material bar runs through the central authorities of described movable stove head from top to bottom, and is connected with described movable stove head;
Described conductive material bar is connected with driving support;
Described static melting station comprises copper crystallizer and stainless steel water jacket;
Described copper crystallizer is movably placed in described stainless steel water jacket, and described stainless steel water jacket is fixed on the lower section of described travelling oven head;
Described stainless steel water jacket is barrel-shaped; The described stainless steel water-cooled portion of putting is provided with a water coolant water inlet; The bottom of described stainless steel water jacket is provided with a water coolant flowing water Valve;
The outer surface of described stainless steel water jacket is wound with cable.
2. a kind of vacuum arc remelting furnace according to claim 1, it is characterised in that, described stainless steel water jacket is connected with rectifier power system and auxiliary water system.
3. a kind of vacuum arc remelting furnace according to claim 1, it is characterised in that, described cable is single core nylon sheath cable.
4. a kind of vacuum arc remelting furnace according to claim 1, it is characterised in that, described cable is adopt duplex winding coil winding to carry out coiling at the winding method of the outer surface of described stainless steel water jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132484.4A CN105624419A (en) | 2016-03-09 | 2016-03-09 | Vacuum arc remelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132484.4A CN105624419A (en) | 2016-03-09 | 2016-03-09 | Vacuum arc remelting furnace |
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| CN105624419A true CN105624419A (en) | 2016-06-01 |
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| CN201610132484.4A Pending CN105624419A (en) | 2016-03-09 | 2016-03-09 | Vacuum arc remelting furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118159A (en) * | 2017-11-21 | 2018-06-05 | 沈阳金正冶金技术有限公司 | A kind of new consumable metallurgical furnace conductive material bar |
| TWI725178B (en) * | 2016-11-01 | 2021-04-21 | 美商Ａ芬克父子公司 | Systems and methods for controlling a vacuum arc remelting furnace based on power input |
Citations (7)
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| JP2002181453A (en) * | 2000-08-31 | 2002-06-26 | General Electric Co <Ge> | Vacuum arc re-melting apparatus device and its method |
| CN2921741Y (en) * | 2006-05-26 | 2007-07-11 | 沈阳真鑫科技有限公司 | Vacuum self-consumption electrode arc furnace |
| CN101093141A (en) * | 2006-06-23 | 2007-12-26 | 王毓民 | Vacuum melting furnace for preparing fusion casting type production of molybdenum from worn-out molybdenum |
| CN101748281A (en) * | 2010-01-14 | 2010-06-23 | 上海交通大学 | Vacuum purifying device of high-purity aluminium |
| CN204690086U (en) * | 2015-06-08 | 2015-10-07 | 重庆钢铁(集团)有限责任公司 | A kind of consumable electrode vacuum furnace |
| CN105132705A (en) * | 2015-09-02 | 2015-12-09 | 上海大学 | Method and device for remelting and refining metals by vacuum magnetic-control arc |
| CN205501388U (en) * | 2016-03-09 | 2016-08-24 | 应达工业（上海）有限公司 | Vacuum arc remelting furnace |
-
2016
- 2016-03-09 CN CN201610132484.4A patent/CN105624419A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181453A (en) * | 2000-08-31 | 2002-06-26 | General Electric Co <Ge> | Vacuum arc re-melting apparatus device and its method |
| CN2921741Y (en) * | 2006-05-26 | 2007-07-11 | 沈阳真鑫科技有限公司 | Vacuum self-consumption electrode arc furnace |
| CN101093141A (en) * | 2006-06-23 | 2007-12-26 | 王毓民 | Vacuum melting furnace for preparing fusion casting type production of molybdenum from worn-out molybdenum |
| CN101748281A (en) * | 2010-01-14 | 2010-06-23 | 上海交通大学 | Vacuum purifying device of high-purity aluminium |
| CN204690086U (en) * | 2015-06-08 | 2015-10-07 | 重庆钢铁(集团)有限责任公司 | A kind of consumable electrode vacuum furnace |
| CN105132705A (en) * | 2015-09-02 | 2015-12-09 | 上海大学 | Method and device for remelting and refining metals by vacuum magnetic-control arc |
| CN205501388U (en) * | 2016-03-09 | 2016-08-24 | 应达工业（上海）有限公司 | Vacuum arc remelting furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI725178B (en) * | 2016-11-01 | 2021-04-21 | 美商Ａ芬克父子公司 | Systems and methods for controlling a vacuum arc remelting furnace based on power input |
| CN108118159A (en) * | 2017-11-21 | 2018-06-05 | 沈阳金正冶金技术有限公司 | A kind of new consumable metallurgical furnace conductive material bar |
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