CN205491211U - Graphite electrode - Google Patents
Graphite electrode Download PDFInfo
- Publication number
- CN205491211U CN205491211U CN201620256675.7U CN201620256675U CN205491211U CN 205491211 U CN205491211 U CN 205491211U CN 201620256675 U CN201620256675 U CN 201620256675U CN 205491211 U CN205491211 U CN 205491211U
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- CN
- China
- Prior art keywords
- graphite
- graphite matrix
- matrix
- conducting copper
- blind hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Resistors (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Abstract
The utility model discloses a graphite electrode, including graphite matrix, conductive copper bar, lead wire end cover and terminal, graphite matrix 's surface is provided with carborundum ceramic particles layer, is the thickness on carborundum ceramic particles layer 200 300nm, graphite matrix 's axis department is provided with the blind hole, the coating has silicon nitride ceramic above the inside wall of blind hole, conductive copper bar encircles graphite matrix 's axis evenly distributed is in in the graphite matrix, conductive copper bar with leave the clearance between the graphite matrix, the clearance intussuseption is filled with carbon black filler, conductive copper bar lies in graphite matrix part through bolted connection, its top with the lead wire end cover is connected, the lead end is covered the surface and is provided with the terminal. This graphite electrode operation is stable, anti oxidability is strong and long service life.
Description
Technical field
This utility model relates to a kind of graphite electrode, is specifically related to the graphite electrode that a kind of antioxygenic property is good.
Background technology
At present in the industries such as metallurgy, plating, high-accuracy mechanical processing, graphite electrode is sent out in these industries
Waving important effect, stability and reliability that graphite motor runs are directly connected to what Product processing produced
Quality, and presently used graphite electrode is often solid graphite block structure, and separately pass through on end face
Screw and copper lead-in wire is connected, although this structure can to a certain degree meet actually used needs, but
In using, this kind of electrode is when energising, and along with temperature environment and the conversion of electric current, electric current is in electrode surface density
Skewness, thus cause electrode serviceability to decline, and it is not enough to easily cause processing precision of products, same in this
Time, current electrode is owing to being the graphite of a monoblock, and the most easily outlet fragmentation comes off and thermal diffusivity
The drawback of energy difference, thus cause graphite electrode stability in use poor.
Further, it is poor that this graphite electrode weak point also resides in high-temperature oxidation resistance, in use,
Graphite electrode oxygen easily and in air reacts and consumes in vain, simultaneously as graphite electrode is in use,
It is typically directly with bolt overlap joint copper bar or directly will copper bar insertion graphite electrode to use, and copper bar
Or the service life of copper bar is shorter, easily has influence on reusing of graphite electrode, in a disguised form decrease graphite
Service life of electrode, cause waste of material.
Utility model content
For solving the existing problem that graphite electrode CURRENT DISTRIBUTION is uneven and oxidation-resistance property is poor, this reality
With novel proposition one novel graphite resistor rod, this graphite electrode is stable, oxidation resistance strong and uses
Life-span is long.
The technical solution of the utility model is achieved in that
A kind of novel graphite resistor rod, including graphite matrix, conducting copper, lead-in wire end cap and binding post, described
The outer surface of graphite matrix is provided with silicon carbide ceramics granular layer, and the thickness of described silicon carbide ceramics granular layer is
200-300nm, is provided with blind hole at the axis of described graphite matrix, the medial wall applied atop of described blind hole has
Silicon nitride ceramics, described conducting copper is evenly distributed on described graphite matrix around the axis of described graphite matrix
In, leave gap between described conducting copper and described graphite matrix, in described gap, be filled with carbon black filler,
Described conducting copper is positioned at graphite-based internal body portion and is bolted, and its top is connected with described lead-in wire end cap,
Described lead end cap upper surface is provided with described binding post.
Further, the width in described gap is 2-4 millimeter.
Further, described conducting copper distance graphite matrix outer surface distance is graphite matrix radical length
1/2-2/3。
Further, the outer surface of described binding post is provided with screw thread.
The beneficial effects of the utility model:
1, graphite electrode of the present utility model is provided with silicon nitride ceramic particles layer at the outer surface of graphite matrix,
Carborundum and graphite matrix organic assembling, this novel graphite resistor rod has excellent antioxygenic property and high emission
Performance.It is provided with blind hole at the axis of graphite electrode, not only acts as and alleviate weight also there is radiating effect.?
The medial wall applied atop of blind hole has silicon nitride ceramics, and in solution prior art, graphite electrode is in smelting process
The problem that the electrode side oxidation occurred causes graphite electrode to be lost.
2, conducting copper is evenly distributed in graphite matrix around the axis of graphite matrix, and fills out between them
It is filled with carbon black filler, not only makes homogeneous current distribution, and the graphite that Graphite Electrode Oxidation at High-Temperature causes is electric
The problem of pole loss.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments more of the present utility model, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sectional view of novel graphite resistor rod of the present utility model.
Accompanying drawing indicates: 1, graphite matrix, and 2, conducting copper, 3, lead-in wire end cap, 4, binding post, 5, blind
Hole, 6, carbon black filler, 7, bolt, 8, silicon nitride ceramic particles layer.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, broadly falls into this utility model
The scope of protection.
With reference to Fig. 1, a kind of novel graphite resistor rod, including graphite matrix 1, conducting copper 2, lead-in wire end cap 3
With binding post 4.The outer surface of graphite matrix 1 is provided with the silicon carbide ceramics granular layer that thickness is 200-300nm
8.Being provided with blind hole 5 at the axis of graphite matrix 1, the medial wall applied atop of blind hole 5 has silicon nitride ceramics.
Conducting copper 2 is evenly distributed in graphite matrix 1 around the axis of graphite matrix 1.Conducting copper 2 distance
The 1/2-2/3 that graphite matrix 1 outer surface distance is graphite matrix radical length.Conducting copper 2 and graphite matrix 1
Between leave gap, the width in gap is 2-4 millimeter.Carbon black filler 6 it is filled with in gap.Conducting copper 2
Being positioned at graphite matrix 1 part to be connected by bolt 7, its top is connected with lead-in wire end cap 3, and go between end cap 3
Upper surface is provided with binding post 4.The outer surface of binding post 4 is provided with screw thread.
It is provided with blind hole 5 at its axis of graphite electrode of the present utility model, not only acts as and alleviate weight and also have scattered
Thermal effect.Medial wall applied atop in blind hole 5 has silicon nitride ceramics, solves graphite electrode in prior art
The electrode side occurred in smelting process aoxidizes the problem causing graphite electrode to be lost.Conducting copper 2 cincture
The axis of graphite matrix is evenly distributed in graphite matrix 1, and is filled with carbon black filler 6 between them, no
Only make homogeneous current distribution, and the problem of graphite electrode loss that Graphite Electrode Oxidation at High-Temperature causes.?
The outer surface of graphite matrix 1 is provided with silicon nitride ceramic particles layer 8, carborundum and graphite matrix 1 organic assembling,
This novel graphite resistor rod has excellent antioxygenic property and high emission performance.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (4)
1. a novel graphite resistor rod, it is characterised in that include graphite matrix, conducting copper, lead-in wire end cap
With binding post, the outer surface of described graphite matrix is provided with silicon carbide ceramics granular layer, described silicon carbide ceramics
The thickness of granular layer is 200-300nm, is provided with blind hole at the axis of described graphite matrix, described blind hole interior
Sidewall applied atop has silicon nitride ceramics, described conducting copper to be uniformly distributed around the axis of described graphite matrix
In described graphite matrix, leave gap between described conducting copper and described graphite matrix, in described gap
Being filled with carbon black filler, described conducting copper is positioned at graphite-based internal body portion and is bolted, its top with
Described lead-in wire end cap connects, and described lead end cap upper surface is provided with described binding post.
Novel graphite resistor rod the most according to claim 1, it is characterised in that the width in described gap is
2-4 millimeter.
Novel graphite resistor rod the most according to claim 1 and 2, it is characterised in that described conducting copper
The 1/2-2/3 that distance graphite matrix outer surface distance is graphite matrix radical length.
Novel graphite resistor rod the most according to claim 3, it is characterised in that the appearance of described binding post
Face is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256675.7U CN205491211U (en) | 2016-03-28 | 2016-03-28 | Graphite electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256675.7U CN205491211U (en) | 2016-03-28 | 2016-03-28 | Graphite electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205491211U true CN205491211U (en) | 2016-08-17 |
Family
ID=56649069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620256675.7U Expired - Fee Related CN205491211U (en) | 2016-03-28 | 2016-03-28 | Graphite electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205491211U (en) |
-
2016
- 2016-03-28 CN CN201620256675.7U patent/CN205491211U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |