CN108585861A - A kind of electrode contact and preparation method thereof - Google Patents
A kind of electrode contact and preparation method thereof Download PDFInfo
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- CN108585861A CN108585861A CN201810238292.0A CN201810238292A CN108585861A CN 108585861 A CN108585861 A CN 108585861A CN 201810238292 A CN201810238292 A CN 201810238292A CN 108585861 A CN108585861 A CN 108585861A
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- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
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- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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Abstract
The invention discloses a kind of electrode contacts and preparation method thereof, wherein electrode contact includes raw material coke, the binder for being bonded raw material coke, the additive for assisting production, and the binder is pitch, and additive is graphene；The present invention replaces needle coke by graphene, to reduce production cost.
Description
Technical field
The invention belongs to graphite electrode technical field, it is specifically related to a kind of electrode contact and preparation method thereof.
Background technology
Electrode contact is the important component of two electrodes guarantee electrodes continuous uses of connection during graphite electrode use, by
Want small in electrode contact sectional area comparative electrode ontology, only account for 35% or so of ontology, therefore, by current density it is big
More, the bending stress born is much greater, and connector area temperature is also high；To make electrode contact meet requirement, electrode is connect
Head quality proposes requirements at the higher level：Flexural strength is higher than ontology, and resistivity wants low, and coefficient of thermal expansion is low, while electrode being required to connect
Header structure is uniform, and internal microcrack will lack, to reduce stress relief point；To ensure the quality of electrode contact, in production electricity
The high-quality needle coke that some ratios must be added when the connector of pole, for improve electrode contact flexural strength, reduce resistivity and
Coefficient of thermal expansion；The high-quality needle coke production technology of production electrode contact rests in external manufacturer's hand, and domestic procurement one is
It is on the high side, second is that quality is kept inside information from outsiders, to limit the promotion of domestic Quality of Graphite Electrode.
Invention content
In view of this, the purpose of the present invention is to provide a kind of electrode contact, by adding graphene instead of high-quality needle-shaped
Coke, to reduce production cost.
In order to achieve the above object, a kind of electrode contact of the present invention, including raw material is burnt, the bonding for being bonded raw material coke
Agent, the additive for assisting production, the binder are pitch, and additive is graphene.
It is another object of the present invention to provide a kind of electrode contact preparation method, including the kneading of raw material coke, molding,
Roasting and graphitization process are prepared to obtain graphene aqueous solution using graphene as raw material before kneading process, kneading process
Concrete operations are, be added in kneading pot burnt raw material, binder and graphene aqueous solution be added in kneading pot carry out it is dry-mixed.
Further, the graphene aqueous solution accounts for the 12wt% of raw material coke.
Further, the group of the graphene aqueous solution is divided into 96wt% solvents, 2wt% graphenes, 2wt% curing agent, and solvent is
The mixed solution of second alcohol and water.
Further, the raw material coke is made of the calcined coke of 75wt% and the coal-based needle coke of 25wt%.
Further, the raw material coke is calcined coke.
The beneficial effects of the present invention are：
1. a kind of electrode contact of the present invention provides a kind of completely new technical concept, by adding graphene, the anti-of material is improved
Folding intensity prevents crack propagation, and graphene can replace high-quality needle coke, to reduce production cost.
2. a kind of electrode contact preparation method of the present invention adds graphene in traditional preparation method, ensureing that electrode connects
Under the premise of head quality, production cost is reduced.
Specific implementation mode
The preferred embodiment of the present invention is described in detail below.
Embodiment one：
A kind of electrode contact of the present invention, including raw material coke, the binder for being bonded raw material coke, the addition for assisting production
Agent, the binder are pitch, and additive is graphene.
Electrode contact preparation method described in the above embodiment, including the kneading of raw material coke, molding, roasting and graphite chemical industry
Sequence is prepared to obtain graphene aqueous solution using graphene as raw material before kneading process, and the concrete operations of kneading process are,
It is carried out in addition raw material coke, binder and graphene aqueous solution addition kneading pot in kneading pot dry-mixed；Here, raw material coke by
The calcined coke of 75wt% and the coal-based needle coke composition of 25wt%；Graphene aqueous solution accounts for the 12wt% of raw material coke；Specifically,
The group of graphene aqueous solution is divided into 96wt% solvents, 2wt% graphenes, 2wt% curing agent, and solvent is the mixed solution of second alcohol and water.
In addition to this, molding, roasting and the graphitization process of raw material coke conventionally carry out, it is simple for,
The operation of molding procedure is that raw material coke obtains thickener after kneading process, and thickener pours into container molding, will by forcing press
Thickener is squeezed out from the opening of container molding, obtains molding green compact；The operation of calcining process is that die mould green compact are put into graphite earthenware
Roasting, obtains roasting product in crucible；The operation of graphitization process is that roasting product is put into acheson furnace and carries out graphite
Change, roasting product is come out of the stove after graphitization, is cleared up, is processed into product.
Here, the quality index of coal-based needle coke is real density：2.13 g/cm 3, ash content：0.03 %, volatile matter：
0.22 %。
Embodiment two：
On the basis of embodiment one, the component of feed change coke, remaining is remained unchanged；Here, raw material coke is calcined coke.
Embodiment three：On the basis of embodiment one, remove graphene aqueous solution, remaining is remained unchanged.
Product prepared by each embodiment, performance parameter are as shown in the table：
Embodiment one and embodiment two compare, and are compared by two groups of performance parameter it is found that add graphene, are conducive to improve
The flexural strength of material prevents crack propagation.
Embodiment two and embodiment three compare, compared by two groups of performance parameter it is found that graphene can replace it is excellent
Matter needle coke, it is well known that the cost of graphene advantageously reduces cost well below the cost of high-quality needle coke.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (6)
1. a kind of electrode contact, it is characterised in that：Including raw material coke, the binder for being bonded raw material coke, for assisting production
Additive, the binder be pitch, additive is graphene.
2. a kind of preparation method of electrode contact described in claim 1, includes kneading, molding, roasting and the graphite of raw material coke
Chemical industry sequence, it is characterised in that：Before kneading process, prepare to obtain graphene aqueous solution, kneading process using graphene as raw material
Concrete operations be added in kneading pot raw material burnt, binder and graphene aqueous solution be added in kneading pot carry out it is dry-mixed.
3. a kind of electrode contact preparation method as claimed in claim 2, it is characterised in that：The graphene aqueous solution accounts for raw material
Burnt 12wt%.
4. a kind of electrode contact preparation method as claimed in claim 3, it is characterised in that：The component of the graphene aqueous solution
For 96wt% solvents, 2wt% graphenes, 2wt% curing agent, solvent is the mixed solution of second alcohol and water.
5. a kind of electrode contact preparation method as claimed in claim 3, it is characterised in that：Raw material coke the forging by 75wt%
It burns and is formed with the coal-based needle coke of 25wt%.
6. a kind of electrode contact preparation method as claimed in claim 3, it is characterised in that：The raw material coke is calcined coke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238292.0A CN108585861A (en) | 2018-03-22 | 2018-03-22 | A kind of electrode contact and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238292.0A CN108585861A (en) | 2018-03-22 | 2018-03-22 | A kind of electrode contact and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108585861A true CN108585861A (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810238292.0A Pending CN108585861A (en) | 2018-03-22 | 2018-03-22 | A kind of electrode contact and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627518A (en) * | 2019-10-29 | 2019-12-31 | 大同通扬碳素有限公司 | Preparation method of high-strength composite graphite electrode |
| CN110668837A (en) * | 2019-10-29 | 2020-01-10 | 大同通扬碳素有限公司 | Preparation method of low-loss graphite electrode |
| CN112457014A (en) * | 2020-10-21 | 2021-03-09 | 大同宇林德石墨新材料股份有限公司 | Ultrahigh-power graphite electrode joint and preparation process thereof |
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| CN102364989A (en) * | 2011-07-01 | 2012-02-29 | 中平能化集团开封炭素有限公司 | Ultra-high power graphite electrode nipple with diameter of 318mm and production method thereof |
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2018
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| CN101798080A (en) * | 2010-03-01 | 2010-08-11 | 中钢集团吉林炭素股份有限公司 | Method for manufacturing graphite electrode joint material |
| CN102364989A (en) * | 2011-07-01 | 2012-02-29 | 中平能化集团开封炭素有限公司 | Ultra-high power graphite electrode nipple with diameter of 318mm and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627518A (en) * | 2019-10-29 | 2019-12-31 | 大同通扬碳素有限公司 | Preparation method of high-strength composite graphite electrode |
| CN110668837A (en) * | 2019-10-29 | 2020-01-10 | 大同通扬碳素有限公司 | Preparation method of low-loss graphite electrode |
| CN112457014A (en) * | 2020-10-21 | 2021-03-09 | 大同宇林德石墨新材料股份有限公司 | Ultrahigh-power graphite electrode joint and preparation process thereof |
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Application publication date: 20180928 |