CN108184279A - A kind of electric arc furnaces graphite electrode - Google Patents
A kind of electric arc furnaces graphite electrode Download PDFInfo
- Publication number
- CN108184279A CN108184279A CN201711458415.3A CN201711458415A CN108184279A CN 108184279 A CN108184279 A CN 108184279A CN 201711458415 A CN201711458415 A CN 201711458415A CN 108184279 A CN108184279 A CN 108184279A
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- Prior art keywords
- graphite electrode
- electrode
- electric arc
- graphite
- arc furnaces
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5062—Borides, Nitrides or Silicides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
- C04B41/68—Silicic acid; Silicates
Abstract
This application involves Metallic Materials Held In Shanghai technical fields, and in particular to a kind of electric arc furnaces graphite electrode.Nearby temperature is up to 1600 DEG C on slag surface, and furnace interior is based on air, and after steelmaking oxygen blowing, stove internal oxidition atmosphere increases considerably, and the 40%~60% of graphite electrode is aoxidized and wasted.The application provides a kind of electric arc furnaces graphite electrode, and including graphite electrode ontology, the graphite electrode ontology includes clamping part and non-clamping portion, and the clamping part is set to the graphite electrode ontology upper end；The graphite electrode ontology includes the graphite electrode unit being connected with each other；The non-clamping portion outer surface is provided with ceramic base antioxidant coating.So that graphite electrode has inoxidizability, effectively solve the problems, such as that graphite electrode is wasted when being aoxidized, extend the service life of graphite electrode, so as to reduce production cost.
Description
Technical field
This application involves Metallic Materials Held In Shanghai technical fields, and in particular to a kind of electric arc furnaces graphite electrode.
Background technology
The high melt ore and the electricity of metal that electric arc furnaces (electric arc furnace) is generated using electrode arc
Stove.Energy is concentrated very much when gas discharge forms electric arc, and arc area temperature is at 3000 DEG C or more.For smelting metal, electric arc furnaces is than it
His converter technological flexibility is big, can remove effectively the impurity such as sulphur, phosphorus, and furnace temperature is easy to control, and occupation area of equipment is small, is suitable for
The melting of superior alloy steel.Graphite electrode, mainly using petroleum coke, needle coke as raw material, coal tar pitch makees bonding agent, through calcining, matching
Material, kneading, die mould, roasting, graphitization, machining and be made, be in electric arc furnaces with electrical arc discharge electric energy to furnace charge into
The conductor of row heating fusing, according to its quality index height, can be divided into common power, high power and ultra high power.
Graphite electrode is one kind in graphite material, in being produced for electric furnace steel making, the graphite electrode quilt in smelting process
Continuous consumption, according to the consumption of mainly three aspects from the point of view of consumption of electrode mechanism：First, starting the arc temperature in tip is caused up to 3000 DEG C
High temperature distillation, second is that side and air reaction oxidation consumption, third, mechanical loss, and lateral oxidation consumption accounts for wastage in bulk or weight
50-70%.
Graphite electrode is that one kind is widely used as to smelt various steel alloys, ferroalloy, industrial silicon, yellow phosphorus, non-ferrous metal
With the industrial materials of rare metal, it is maximum the shortcomings that be exactly that high-temperature oxidation resistance is poor.In steelmaking process, stone near upper cover
600 DEG C or so of electrode ink temperature, nearby temperature is up to 1600 DEG C on slag surface, and furnace interior is based on air, after steelmaking oxygen blowing,
Stove internal oxidition atmosphere increases considerably, and the 40%~60% of graphite electrode is aoxidized and wasted.
Invention content
It in order to solve above-mentioned graphite electrode is that one kind is widely used as to smelt various steel alloys, iron that the purpose of the application, which is,
Alloy, industrial silicon, yellow phosphorus, non-ferrous metal and rare metal industrial materials, it is maximum the shortcomings that be exactly high-temperature oxidation resistance
Difference.In steelmaking process, 600 DEG C or so of graphite electrode temperature near upper cover, nearby temperature is up to 1600 DEG C on slag surface, furnace body
Inside is based on air, and after steelmaking oxygen blowing, stove internal oxidition atmosphere increases considerably, and the 40%~60% of graphite electrode is aoxidized
And the problem of wasting.
For this purpose, an embodiment of the present invention provides following technical solutions：A kind of electric arc furnaces graphite electrode, including graphite electrode sheet
Body, the graphite electrode ontology include clamping part and non-clamping portion, and the clamping part is set to the graphite electrode ontology upper end；
The graphite electrode ontology includes the graphite electrode unit being connected with each other；
The non-clamping portion outer surface is provided with ceramic base antioxidant coating.
Optionally, it is threadedly coupled between the graphite electrode unit.
Optionally, the graphite electrode unit includes the first graphite electrode and the second graphite electrode, the first graphite electricity
Pole bottom is provided with internal thread, is provided with external screw thread protrusion at the top of second graphite electrode, the external screw thread protrusion with it is described
Internal thread, which cooperates, to be connected.
Optionally, the graphite electrode ontology is provided at both ends with electrode contact, the electrode contact and the graphite electrode
Ontology is connected；
The graphite electrode body central is provided with first through hole, and the electrode contact is provided centrally with the second through-hole, institute
First through hole is stated to connect with second through-hole.
Optionally, electrode end cap is further included, the electrode contact is set to electrode tip base portion, the electrode contact
It is connected with the electrode end cap, the electrode end cap is provided centrally with third through-hole, and the third through-hole is logical with described first
Hole and the second through-hole connect.
Optionally, the electrode contact is threadedly coupled with the graphite electrode ontology.
Optionally, the electrode tip covers end and is connected with blast pipe.
Optionally, the ceramic base antioxidant coating includes following raw material：
Aluminium isopropoxide, vanadium nitride, alumina powder, silicon carbide, yttria, nano silicon dioxide, thorium oxide, oxidation
Zirconium, molybdenum dioxide, three nickel oxide, graphite, clay, nickel sesquioxide, di-iron trioxide, zinc oxide, camwood knag are nano oxidized
Molybdenum, titanium dioxide, metatitanic acid fourth fat, kaolin, cobaltosic oxide, carbon nano-fiber, tourmaline powder, sepiolite, medical stone.
Optionally, the ceramic base antioxidant coating thickness of the non-clamping portion outer surface is 0.04~1mm.
Optionally, the clamping part height and non-clamping portion's height ratio are 1：(7-9).
Technical solution provided in an embodiment of the present invention includes following advantageous effect：The application passes through in graphite electrode ontology
Non-clamping portion outer surface sets conductivity ceramics base antioxidant coating, can effectively completely cut off air, avoid graphite electrode surface and oxygen
It contacts and is reacted so that graphite electrode has inoxidizability, effectively solves what graphite electrode was wasted when being aoxidized
Problem extends the service life of graphite electrode, so as to reduce production cost.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, for those of ordinary skills, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of electric arc furnaces graphite electrode first structure schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of the second structure diagram of electric arc furnaces graphite electrode provided in an embodiment of the present invention；
Fig. 3 is a kind of electric arc furnaces graphite electrode third structure diagram provided in an embodiment of the present invention；
Fig. 4 is a kind of electric arc furnaces graphite electrode partial structural diagram provided in an embodiment of the present invention；
Fig. 5 is electric arc furnaces graphite electrode weight-loss ratio change curve schematic diagram provided in an embodiment of the present invention；
The symbolic indication of Fig. 1~5 is：
1- graphite electrode ontologies, 2- clamping parts, the non-clamping portions of 3-, 4- graphite electrode units, 5- ceramic base antioxidant coatings,
6- electrode contacts, 7- first through hole, the second through-holes of 8-, 9- electrode end caps, 10- third through-holes, 11- blast pipes.
Specific embodiment
Attached drawing herein is incorporated into specification and forms the part of this specification, shows and meets implementation of the present invention
Example, and be used to explain the principle of the present invention together with specification.
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also be obtained according to these attached drawings other attached drawings.
Embodiment one
It is a kind of electric arc furnaces graphite electrode provided in an embodiment of the present invention referring to Fig. 1~3, including graphite electrode ontology 1,
The graphite electrode ontology 1 includes clamping part 2 and non-clamping portion 3, and the clamping part 2 is set on the graphite electrode ontology 1
End；
The graphite electrode ontology 1 includes the graphite electrode unit 4 being connected with each other；
3 outer surface of non-clamping portion is provided with ceramic base antioxidant coating 5.
The application specific work process is as follows：The clamping part 2 of graphite electrode ontology 1 cover and is positioned over ceramic base and resists
In the mixture of oxide covering 5 carry out natural immersion, be soaked in vacuum or ultrasound impregnate 30s to 1min, spontaneously dry 4 after taking-up
It can form one layer of ceramic base antioxidant coating 5 in the outer surface of 1 clamping part 3 of graphite electrode ontology, and graphite electrode is carried out
Protection.
Or stir evenly the mixture of ceramic base antioxidant coating 5, the side brushed or sprayed is used to non-clamping portion 3
Formula coats 2~4 times, applies as possible thinner when applying for the first time, can cover body surface, after applying every time needs that its natural drying is allowed to arrive
The degree that hand cannot not touch viscously lasts about greatly 20~30min, allows its natural drying time slightly longer after being painted with for the last time, and general 4
Hour or so, hand touches completely not viscous i.e. usable.
Here graphite electrode unit 4 carries out assembly and connection as graphite electrode ontology 1 in production, carries out after use
Graphite electrode unit 4 is disassembled into, convenient for storage.
The application, can be effective by setting ceramic base antioxidant coating 5 in 1 non-clamping 3 outer surface of portion of graphite electrode ontology
Completely cut off air, graphite electrode surface is avoided to contact and reacted with oxygen so that graphite electrode has inoxidizability, effectively solves
The problem of certainly graphite electrode is wasted when being aoxidized extends the service life of graphite electrode, so as to reduce production cost.
Embodiment two
It is a kind of electric arc furnaces graphite electrode provided in an embodiment of the present invention referring to Fig. 1~5, including graphite electrode ontology 1,
The graphite electrode ontology 1 includes clamping part 2 and non-clamping portion 3, and the clamping part 2 is set on the graphite electrode ontology 1
End；
The graphite electrode ontology 1 includes the graphite electrode unit 4 being connected with each other；
3 outer surface of non-clamping portion is provided with ceramic base antioxidant coating 5.
Optionally, it is threadedly coupled between the graphite electrode unit 4.
Optionally, the graphite electrode unit 4 includes the first graphite electrode and the second graphite electrode, the first graphite electricity
Pole bottom is provided with internal thread, is provided with external screw thread protrusion at the top of second graphite electrode, the external screw thread protrusion with it is described
Internal thread, which cooperates, to be connected.
Optionally, the graphite electrode ontology 1 is provided at both ends with electrode contact 6, the electrode contact 2 and graphite electricity
Pole ontology 1 is connected；
The graphite electrode ontology 1 is provided centrally with first through hole 7, and the electrode contact 6 is provided centrally with the second through-hole
8, the first through hole 7 connects with second through-hole 8.
Optionally, electrode end cap 9 is further included, the electrode contact 6 is set to 9 bottom of electrode end cap, the electrode
Connector 6 is connected with the electrode end cap 9, and the electrode end cap 9 is provided centrally with third through-hole 10, the third through-hole 10 with
7 and second through-hole 8 of first through hole connects.
Optionally, the electrode contact 6 is threadedly coupled with the graphite electrode ontology 1.
Optionally, 9 upper end of electrode end cap is connected with blast pipe 11.
Optionally, the ceramic base antioxidant coating 5 includes following raw material：
Aluminium isopropoxide, vanadium nitride, alumina powder, silicon carbide, yttria, nano silicon dioxide, thorium oxide, oxidation
Zirconium, molybdenum dioxide, three nickel oxide, graphite, clay, nickel sesquioxide, di-iron trioxide, zinc oxide, camwood knag are nano oxidized
Molybdenum, titanium dioxide, metatitanic acid fourth fat, kaolin, cobaltosic oxide, carbon nano-fiber, tourmaline powder, sepiolite, medical stone.
Optionally, 5 thickness of ceramic base antioxidant coating of 3 outer surface of non-clamping portion is 0.04~1mm.
Optionally, 2 height of clamping part and non-clamping 3 height ratio of portion are 1：(7-9).
Here graphite electrode unit 4 carries out assembly and connection as graphite electrode ontology 1 in production, carries out after use
Graphite electrode unit 4 is disassembled into, convenient for storage.The internal thread fallen in, the second graphite electrode top are arranged at the first graphite electrode bottom
There is the external screw thread of protrusion in portion, and internal thread and external screw thread mutually coincide.Certainly, the second graphite electrode bottom is also equipped with what is fallen in
Internal thread is as above connected with each other with third graphite electrode.
The application specific work process is as follows：According to proportioning by aluminium isopropoxide, vanadium nitride, alumina powder, silicon carbide, three oxygen
Change two yttriums, nano silicon dioxide, thorium oxide, zirconium oxide, molybdenum dioxide, three nickel oxide, graphite, clay, nickel sesquioxide, three oxygen
Change two iron, zinc oxide, camwood knag, nanoscale molybdenum oxide, titanium dioxide, metatitanic acid fourth fat, kaolin, cobaltosic oxide, Nano carbon fibers
The raw material such as dimension, tourmaline powder, sepiolite, medical stone are mixed, and the clamping part 2 of graphite electrode ontology 1 cover and is put
It is placed in the mixture of ceramic base antioxidant coating 5 and carries out natural immersion, be soaked in vacuum or ultrasound impregnates 30s to 1min, take
One layer of ceramic base antioxidant coating 5 can be formed for 4 days in the outer surface of 1 clamping part 3 of graphite electrode ontology by being spontaneously dried after going out, right
Graphite electrode is protected.
Or according to proportioning by aluminium isopropoxide, vanadium nitride, alumina powder, silicon carbide, yttria, nanometer titanium dioxide
Silicon, thorium oxide, zirconium oxide, molybdenum dioxide, three nickel oxide, graphite, clay, nickel sesquioxide, di-iron trioxide, zinc oxide are purple
Knaur, nanoscale molybdenum oxide, titanium dioxide, metatitanic acid fourth fat, kaolin, cobaltosic oxide, carbon nano-fiber, tourmaline powder, Hai Pao
The raw material such as stone, medical stone are mixed, and are stirred the mixture for uniformly, and non-clamping portion 3 is applied using the mode brushed or sprayed
It covers 2~4 times, applies as possible thinner when applying for the first time, body surface can be covered, need that it is allowed to spontaneously dry in one's hands touch after applying every time
Not viscous degree, lasts about greatly 20~30min, allows its natural drying time slightly longer after being painted with for the last time, general 4 hours
Left and right, hand touch completely not viscous i.e. usable.
The ceramic base antioxidant coating 5 fully meet electric arc furnaces high temperature, high oxidation atmosphere harsh environment, highest using temperature
Up to 1700 DEG C of degree, is firmly combined with graphite material surface, is not fallen off during use, thermal shock resistance is strong, inoxidizability
Market similar product can be substantially better than.Reduce by more than 25% ton steel graphite electrode consumption.
It in high temperature resistance furnace, 900 DEG C, is aoxidized 20 hours under air atmosphere, the comparative analysis conductivity ceramics base is anti-oxidant
The antioxygenic property of coating 5 and other coatings, as shown in Figure 3.
Untreated graphite block is after oxidation in 20 hours, and weight-loss ratio is up to 52%, and oxidation is extremely serious.Other modes processing
Graphite electrode, although oxidation rate is slower, after ten hours, air permeable dipping layer goes directly internal voids, although
Processed surface 1cm charcoal elements are more complete, but the inside causes shell to come off by severe oxidation, is aoxidized after 10 hours
Rate is significantly raised, gradually fails.The graphite electrode of the ceramic base antioxidant coating 5 coating is weightless after oxidation in 20 hours
Rate is less than 1%, is directly lost in water by 900 DEG C of high temperature, significantly not cracked, without any obscission, with charcoal element substrate knot
It closes still very securely, thermal shock resistance is splendid.The graphite electrode of the ceramic base antioxidant coating 5 coating is in 1300 DEG C of high temperature oxygens
Change 10 hours, weight-loss ratio is combined very secured less than 1% with graphite matrix, is shown excellent antioxygenic property, is fully met
Graphite electrode anit-oxidizing requirement under electric arc furnaces operating mode.
Graphite electrode clamper clamps graphite electrode by clamping part 2 and is put into inside electric arc furnaces.Under normal circumstances, graphite electricity
High degree is 2 meters, and the height of clamping part 2 is 20~25 centimetres.
The application, can be effective by setting ceramic base antioxidant coating 5 in 1 non-clamping 3 outer surface of portion of graphite electrode ontology
Completely cut off air, graphite electrode surface is avoided to contact and reacted with oxygen so that graphite electrode has inoxidizability, effectively solves
The problem of certainly graphite electrode is wasted when being aoxidized extends the service life of graphite electrode, so as to reduce production cost.
The above is only the specific embodiment of the embodiment of the present invention, is made skilled artisans appreciate that or realizing
The present invention.A variety of modifications of these embodiments will be apparent to one skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein
Consistent most wide range.
Claims (10)
1. a kind of electric arc furnaces graphite electrode, which is characterized in that including graphite electrode ontology (1), graphite electrode ontology (1) packet
Clamping part (2) and non-clamping portion (3) are included, the clamping part (2) is set to graphite electrode ontology (1) upper end；
Graphite electrode unit (4) of the graphite electrode ontology (1) including interconnection；
Non-clamping portion (3) outer surface is provided with ceramic base antioxidant coating (5).
2. electric arc furnaces graphite electrode as described in claim 1, which is characterized in that screw thread between the graphite electrode unit (4)
Connection.
3. electric arc furnaces graphite electrode as claimed in claim 2, which is characterized in that the graphite electrode unit (4) is including first
Graphite electrode and the second graphite electrode, the first graphite electrode bottom are provided with internal thread, the second graphite electrode top
External screw thread protrusion is provided with, the external screw thread protrusion cooperates with the internal thread and connects.
4. electric arc furnaces graphite electrode as described in claim 1, which is characterized in that graphite electrode ontology (1) the both ends setting
There is electrode contact (6), the electrode contact (2) is connected with the graphite electrode ontology (1)；
The graphite electrode ontology (1) is provided centrally with first through hole (7), and it is logical that the electrode contact (6) is provided centrally with second
Hole (8), the first through hole (7) connect with second through-hole (8).
5. electric arc furnaces graphite electrode as claimed in claim 4, which is characterized in that further include electrode end cap (9), the electrode connects
Head (6) is set to electrode end cap (9) bottom, and the electrode contact (6) is connected with the electrode end cap (9), the electricity
Extreme lid (9) is provided centrally with third through-hole (10), the third through-hole (10) and the first through hole (7) and the second through-hole
(8) it connects.
6. electric arc furnaces graphite electrode as claimed in claim 5, which is characterized in that the electrode contact (6) and graphite electricity
Pole ontology (1) is threadedly coupled.
7. electric arc furnaces graphite electrode as claimed in claim 6, which is characterized in that electrode end cap (9) upper end and blast pipe
(11) it is connected.
8. such as electric arc furnaces graphite electrode according to any one of claims 1 to 6, which is characterized in that the ceramic base is anti-oxidant
Coating (5) includes following raw material：
Aluminium isopropoxide, vanadium nitride, alumina powder, silicon carbide, yttria, nano silicon dioxide, thorium oxide, zirconium oxide, two
Molybdenum oxide, three nickel oxide, graphite, clay, nickel sesquioxide, di-iron trioxide, zinc oxide, camwood knag, nanoscale molybdenum oxide, dioxy
Change titanium, metatitanic acid fourth fat, kaolin, cobaltosic oxide, carbon nano-fiber, tourmaline powder, sepiolite, medical stone.
9. electric arc furnaces graphite electrode as claimed in claim 7, which is characterized in that the ceramics of non-clamping portion (3) outer surface
Base antioxidant coating (5) thickness is 0.04~1mm.
10. electric arc furnaces graphite electrode as claimed in claim 8, which is characterized in that the clamping part (2) highly with the non-folder
It is 1 to hold portion (3) height ratio：(7-9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458415.3A CN108184279A (en) | 2017-12-28 | 2017-12-28 | A kind of electric arc furnaces graphite electrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458415.3A CN108184279A (en) | 2017-12-28 | 2017-12-28 | A kind of electric arc furnaces graphite electrode |
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| CN108184279A true CN108184279A (en) | 2018-06-19 |
Family
ID=62548146
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036395A (en) * | 1988-04-07 | 1989-10-18 | 中国科学院化工冶金研究所 | Antioxidant protective paint for carbon product |
| CN1375526A (en) * | 2001-03-16 | 2002-10-23 | 御国色素株式会社 | Conductive anti-oxygenation paint and grahpite electrode |
| EP2190262A1 (en) * | 2008-11-25 | 2010-05-26 | SGL Carbon SE | Carbon electrode with longer durability |
| CN202713678U (en) * | 2012-06-27 | 2013-01-30 | 宝钢集团新疆八一钢铁有限公司 | Air cooling type graphite electrode |
-
2017
- 2017-12-28 CN CN201711458415.3A patent/CN108184279A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036395A (en) * | 1988-04-07 | 1989-10-18 | 中国科学院化工冶金研究所 | Antioxidant protective paint for carbon product |
| CN1375526A (en) * | 2001-03-16 | 2002-10-23 | 御国色素株式会社 | Conductive anti-oxygenation paint and grahpite electrode |
| EP2190262A1 (en) * | 2008-11-25 | 2010-05-26 | SGL Carbon SE | Carbon electrode with longer durability |
| CN202713678U (en) * | 2012-06-27 | 2013-01-30 | 宝钢集团新疆八一钢铁有限公司 | Air cooling type graphite electrode |
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Application publication date: 20180619 |