CN207518893U - A kind of graphite electrode - Google Patents
A kind of graphite electrode Download PDFInfo
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- CN207518893U CN207518893U CN201721735897.8U CN201721735897U CN207518893U CN 207518893 U CN207518893 U CN 207518893U CN 201721735897 U CN201721735897 U CN 201721735897U CN 207518893 U CN207518893 U CN 207518893U
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- electrode
- graphite electrode
- graphite
- ontology
- convex block
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Abstract
The utility model discloses a kind of graphite electrodes, including graphite electrode ontology, iron core, carbon fiber rod, the electrode body upper end sets joint groove, the both ends of the joint groove inner bottom surface and side wall top surface setting raw material slot, setting raw material block in the raw material slot, the graphite electrode body central sets venthole, the graphite electrode ontology sets iron core by proximal edge, the graphite electrode ontology lower end sets connector convex block, the connector convex block is mutually clamped with the joint groove, close contact, mounting hole is set on the two side of electrode body upper end joint groove and the connector convex block, setting carbon fiber rod in the mounting hole.A kind of graphite electrode of the utility model has achieved the purpose that fast and stable continues electrode by modified electrode joint structure, solves the problems, such as current distribution is uneven by burying iron core inside graphite electrode.
Description
Technical field
The utility model is related to metallurgical production equipment manufacturing technology field, more particularly, to a kind of graphite electrode.
Background technology
Graphite electrode mainly using petroleum coke, needle coke as raw material, coal tar pitch makees bonding agent, through calcining, dispensing, kneading,
Die mould, roasting, graphitization, machining and be made, be mainly used for electric furnace arrangement for producing steel and ladle refining furnace.Graphite electrode high temperature resistant,
Handling ease, price are relatively inexpensive, and with higher resistance, mechanical strength is carried with the rising of temperature below 2500 DEG C
Height can be used as the low voltage high current power supply of big cross section calandria.In electric furnace arrangement for producing steel and ladle refining furnace, electrode is in end
Position, effect is that high-current leading is directed at working chamber or molten steel, is generated between electrode and furnace charge or between electrode and molten steel
Electric arc achievees the purpose that heat furnace charge and molten steel.
In electric furnace arrangement for producing steel and ladle refining furnace steelmaking process, electrode continues using nipple, butt joint
The processing request of screw thread is very stringent, and production cost is higher, and de- the electrode that process often occurs after continued access is used to release
Fall phenomenon.After electrode loosens generation, seam is gently then increased, increases resistance, the electric current normal allocation of electrode and connector is destroyed, causes
Junction fever is rubescent, and oxidation accelerates that electrode is made to attenuate, and final hypomere comes off；It is heavy then break electrode and joint screw thread or shake is disconnected
Connector causes to scrap, and makes entreprise cost consumption increase.If electrode is fallen into molten steel, if fishing for not smooth or replacing too late
When, production accident can be caused, the economic loss of bigger is brought to enterprise.Additionally, due to graphite electrode resistance and temperature into anti-
Get over that high resistance is smaller, therefore electric current can increasingly focus on the central part of electrode than, temperature, so as to cause electrode radial temperature difference
It is increasing, eventually lead to electrode cracking.
Authorization Notice No. is that the Chinese patent of 202818670 U of CN discloses a kind of novel graphite resistor rod, equal including both ends
Top graphite electrode ontology and lower part graphite electrode ontology equipped with threaded hole, top graphite electrode ontology and lower part graphite electrode
Ontology has threaded connector by both ends and is connected.Use independent connector connection top graphite electrode ontology and lower part stone
Electrode ink ontology makes connection reliable, can effectively increase graphite electrode diameter, to improve its current carrying capacity, and can effectively prevent
Only graphite electrode is fallen into stove, reduces alloy rejection rate.Patent offer is traditional cone nipple, under normal circumstances
Can conveniently be continued electrode, but screw thread is easily damaged or loosens and causes production accident.
Authorization Notice No. is that the Chinese patent of 205510453 U of CN discloses and a kind of novel reviews one's lessons by oneself compound graphite electrode, packet
Include copper core, graphite electrode ontology, graphite Electric radiant Heating Film, SiC coatings, metallic conductor, SiC graphite rods and jointing；The graphite
The upper end both sides of electrode body are equipped with convex docking groove, and the centre of graphite electrode ontology is equipped with raw material gasket, graphite electrode ontology
Lower end both sides be equipped with spill link slot, the centre of the graphite electrode ontology is equipped with SiC graphite rods, the upper table of SiC graphite rods
Face is equipped with graphite Electric radiant Heating Film, and the upper surface of the graphite Electric radiant Heating Film is equipped with SiC coatings, on the upper surface of the SiC coatings
Equipped with metallic conductor.The utility model is equipped with SiC coatings in electrode body, and the tissue for making electrode is very fine and close, mechanical strength
Height, stable quality have good electric conductivity, wear-resisting, high temperature resistance；Current distribution evenly, can be under high current
Good electric conductivity is obtained, electric conductivity can be more stable.The patent sets copper core in electrode, improves current distributions, but
Only three copper cores of setting are set less reasonable, and current distribution still assembles centre to centre center portion position.
Utility model content
In view of this, the purpose of this utility model is in view of the deficiencies of the prior art, a kind of graphite electrode to be provided, by changing
Achieve the purpose that fast and stable continues electrode into electrode contact structure, solved electricity by burying iron core inside graphite electrode
The problem of flow distribution is uneven.
In order to achieve the above objectives, the utility model uses following technical scheme：
A kind of graphite electrode, including graphite electrode ontology, iron core, carbon fiber rod, the electrode body upper end sets connector
Groove, the both ends of the joint groove inner bottom surface and side wall top surface setting raw material slot, the interior setting raw material block of the raw material slot are described
Graphite electrode body central sets venthole, and the graphite electrode ontology sets iron core, the graphite electrode ontology by proximal edge
Lower end sets connector convex block, and the connector convex block is mutually clamped with the joint groove, close contact, the electrode body upper end
Mounting hole on the two side of joint groove and the connector convex block is set, carbon fiber rod is set in the mounting hole.
As further improvement of the utility model, the graphite electrode ontology is cylindrical, draw ratio 4.5-6.
As further improvement of the utility model, the raw material block is cuboid, highly two millimeters higher than raw material slot.
As further improvement of the utility model, the venthole is circular through hole.
As further improvement of the utility model, the iron core circumferentially leans near side (ns) in the graphite electrode ontology
Edge position, the iron core sealing are embedded in inside the graphite electrode.
As further improvement of the utility model, the connector convex block, the joint groove and the electrode body are
Integral structure, on the two side of electrode body upper end joint groove and under the electrode body on end connector nub side wall
Tooth socket is set.
As further improvement of the utility model, the connector convex block, the joint groove section are rectangle.
As further improvement of the utility model, the connector convex block, the joint groove section to be trapezoidal, it is trapezoidal tiltedly
Side slope degree is 8：1.
The beneficial effects of the utility model are：
1st, the utility model provides a kind of graphite electrode, is changed by the tapered electrode connector for connecting conventional threads
Into being fastened using tooth socket and the fixed mode of carbon fiber rod continue electrode, achieved the purpose that fast and stable continues electrode, prevents
Electrode contact loosening and releasing in use solves the problems, such as current distribution is uneven by burying iron core inside graphite electrode.
2nd, the graphite electrode ontology is cylinder, and draw ratio 4.5-6 both ensure that the length of Single lead, is reduced
The number that continues of electrode in use, and reduce the danger that electrode fracture occurs.
3rd, the raw material block is cuboid, highly two millimeters higher than raw material slot, when electrode is powered in use, raw material block adds
Heat is melted, and further increases the sealing performance of electrode contact, makes electrode contact closer.
4th, the graphite electrode body central sets venthole, and cooling inert gas is blown into the venthole, on the one hand
Cooling effect is played to the graphite electrode, slows down the oxidation rate of electrode, export license is reduced, reduces cost, on the other hand
Molten steel, slag are stirred by the gas being blown into.
5th, circumferentially in the graphite electrode ontology close to marginal position, iron core can direct current to the iron core
The surface of graphite electrode, prevent electrode interior temperature is excessively high, internal-external temperature difference it is excessive caused by electrode cracking；The iron core sealing packet
It is embedded in inside the graphite electrode, even if iron core still will not flow out graphite electrode after melting, continues to play a role.
The 6th, intermeshing is set on the two side of electrode body upper end joint groove and on the connector convex block side wall
Tooth socket, continue electrode when the connector convex block of new electrode is aligned to the joint groove side of old electrode, be slowly pushed into, tooth socket is mutual
Engagement, connector fitting are close.
7th, mounting hole, the fixation are set on the two side of electrode body upper end joint groove and the connector convex block
Carbon fiber rod is set in hole, carbon fiber rod is equivalent to pin, and the connection for making electrode contact is more firm, prevent joint looseness or
Person comes off.
8th, the connector convex block, the joint groove section are trapezoidal, and the trapezoidal hypotenuse gradient is 8：1, trapezoid cross section connects
Head enables the connector in suspention of the electrode after continuing to bear the pulling force of bigger, and continuing for the old and new's electrode is more firm.
Description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment one.
Fig. 2 is the overlooking the structure diagram of the utility model embodiment one.
Fig. 3 is the left view structural representation of the utility model embodiment one.
Fig. 4 is the structure diagram of the utility model embodiment two.
Graphite electrode ontology 1, iron core 2, carbon fiber rod 3, joint groove 4, raw material slot 5, raw material block 6, venthole 7, connector
Convex block 8, side wall 9, mounting hole 10, internal spline 11, outer teeth groove 12.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figs. 1-3, a kind of graphite electrode, including graphite electrode ontology 1, iron core 2, carbon fiber rod 3, the electrode sheet
1 upper end of body sets joint groove 4,4 inner bottom surface of joint groove and 9 top surface of side wall setting raw material slot 5, in the raw material slot 5
Raw material block 6, the 1 centrally disposed venthole 7 of graphite electrode ontology are set, and the graphite electrode ontology 1 sets iron by proximal edge
Core 2,1 lower end of the graphite electrode ontology setting connector convex block 8, the connector convex block 8 is mutually clamped with the joint groove 4,
The lateral mounting hole of setting in close contact, the two side 9 of the 1 upper end joint groove 4 of electrode body and the connector convex block 8
10, the interior setting carbon fiber rod 3 of the mounting hole 10.
The graphite electrode ontology 1 is cylinder, and draw ratio 4.5-6 is ensureing the suitable length of Single lead
Reduce the danger that electrode fracture occurs simultaneously.The connector convex block 8, the joint groove 4 and the electrode body 1 are integrated
Formula structure, the connector convex block 8 and the joint groove 4 are separately positioned on the upper and lower ends of the electrode body 1, the connector
Convex block 8, the joint groove 4 cross section for rectangle, 9 inner surface of side wall of the 1 upper end joint groove 4 of electrode body is set
Internal spline 11 is put, 8 outer surface of connector convex block sets outer teeth groove 12, and the internal spline 11 and the outer teeth groove 12 are mutually nibbled
It closes, fitting is close.
The both ends of the joint groove 4 respectively set a raw material slot 5, the top surface of described two side walls 9 along central axes
Close to outside, respectively one raw material slot 5 of setting, the raw material slot 5 are cuboid, and the raw material are placed in the raw material slot 5
Block 6, raw material slot 5 described in the thickness ratio of the raw material block 6 are higher by two millimeters.
The 1 centrally disposed venthole 7 of graphite electrode ontology, the venthole 7 are circular through hole, and the venthole 7 is set
The connected state of stomata can be kept behind the center of the graphite electrode ontology, the electrode that continues by putting, and be blown into the venthole 7
Inert gas is cooled down, cooling effect is on the one hand played to the graphite electrode, and electrode perimeter oxygen concentration can be reduced, subtracted
The oxidation rate of slow electrode, reduces export license, reduces cost, and on the other hand molten steel, slag are carried out by the gas being blown into
Stirring.
The iron core 2 is circumferentially in the graphite electrode ontology 1 close to marginal position, the sealing of iron core 2 embedding
Inside the graphite electrode ontology 1,10 iron cores 2 are buried in every root graphite electrode, the iron core 2 can be uniform by electric current
Guiding prevents from causing electrode interior inside current convergence to the graphite electrode ontology 1 to the periphery of the graphite electrode ontology 1
Temperature is excessively high, and 1 internal-external temperature difference of graphite electrode ontology can cause electrode to crack when excessive；The sealing of iron core 2 is embedded in institute
It states inside graphite electrode ontology 1, even if the thawing of iron core 2 will not flow out graphite electrode at high temperature, continues to play conductive
Effect.
When needing to carry out electrode in using to continue, make the described of the connector convex block 8 of new electrode and old electrode first
The long axis of joint groove 4 is located on straight line, and the internal spline 11 of the outer teeth groove 12 of new electrode and old electrode is right
Together, then the connector convex block 8 of new electrode is pushed into the joint groove 4 of the old electrode, is aligned the mounting hole 10, inserted
Enter the carbon fiber rod 3 and the subsequent duty for both completing electrode is fixed.
Embodiment two
As shown in figure 4, the structure of the present embodiment and embodiment one is essentially identical, difference lies in：The graphite electrode sheet
The connector convex block 8 of 1 lower end of body and 4 cross section of the joint groove of upper end are trapezoidal, and the trapezoidal hypotenuse gradient is 8：1.Ladder
The connector of tee section enables the connector in suspention of the electrode after continuing to bear the pulling force of bigger, and continuing for the old and new's electrode is more steady
Gu while the fitting of electrode contact tooth socket part is also even closer, so as to reduce the resistance value of joint, prevents connector overheat from making
Into splicing loss and damage.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field
Other modifications or equivalent replacement that those of ordinary skill makes the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme should all cover in the right of the utility model.
Claims (8)
1. a kind of graphite electrode, it is characterised in that：Including graphite electrode ontology, iron core, carbon fiber rod, the electrode body upper end
Joint groove, the both ends of the joint groove inner bottom surface and side wall top surface setting raw material slot are set, life is set in the raw material slot
Expect block, the graphite electrode body central sets venthole, and the graphite electrode ontology sets iron core, the graphite by proximal edge
Electrode body lower end sets connector convex block, and the connector convex block is mutually clamped with the joint groove, close contact, the electrode
Mounting hole on the two side of ontology upper end joint groove and the connector convex block is set, carbon fiber rod is set in the mounting hole.
2. a kind of graphite electrode according to claim 1, it is characterised in that：The graphite electrode ontology is cylinder, long
Diameter ratio is 4.5-6.
3. a kind of graphite electrode according to claim 2, it is characterised in that：The raw material block be cuboid, the life
Material block height is higher by two millimeters than the raw material slot.
4. a kind of graphite electrode according to claim 3, it is characterised in that：The venthole is circular through hole.
5. according to a kind of graphite electrode of claim 1-4 any one of them, it is characterised in that：The iron core circumferentially exists
The graphite electrode ontology is embedded in close to marginal position, the iron core sealing inside the graphite electrode.
6. according to a kind of graphite electrode of claim 1-4 any one of them, it is characterised in that：The connector convex block described connects
Head groove be an integral structure with the electrode body, on the two side of electrode body upper end joint groove with the electrode
Tooth socket is set on end connector nub side wall under ontology.
7. according to a kind of graphite electrode of claim 1-4 any one of them, it is characterised in that：The connector convex block described connects
Head groove section is rectangle.
8. according to a kind of graphite electrode of claim 1-4 any one of them, it is characterised in that：The connector convex block described connects
Head groove section is trapezoidal, and the trapezoidal hypotenuse gradient is 8：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735897.8U CN207518893U (en) | 2017-12-13 | 2017-12-13 | A kind of graphite electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735897.8U CN207518893U (en) | 2017-12-13 | 2017-12-13 | A kind of graphite electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207518893U true CN207518893U (en) | 2018-06-19 |
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ID=62543912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721735897.8U Expired - Fee Related CN207518893U (en) | 2017-12-13 | 2017-12-13 | A kind of graphite electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207518893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927032A (en) * | 2021-09-02 | 2022-01-14 | 山东晶盾新材料科技有限公司 | Mold structure for rapid hot-pressing sintering |
-
2017
- 2017-12-13 CN CN201721735897.8U patent/CN207518893U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927032A (en) * | 2021-09-02 | 2022-01-14 | 山东晶盾新材料科技有限公司 | Mold structure for rapid hot-pressing sintering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20211213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |