CN104661337B - A kind of resistance material and using method thereof - Google Patents
A kind of resistance material and using method thereof Download PDFInfo
- Publication number
- CN104661337B CN104661337B CN201510009182.3A CN201510009182A CN104661337B CN 104661337 B CN104661337 B CN 104661337B CN 201510009182 A CN201510009182 A CN 201510009182A CN 104661337 B CN104661337 B CN 104661337B
- Authority
- CN
- China
- Prior art keywords
- resistance material
- colophonium
- less
- product
- content
- 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.)
- Active
Links
Abstract
The invention provides a kind of resistance material, resistance material is the residual matter of Colophonium, and the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 1%, and volatile matter content is less than 1%, and granularity is 10-30mm. The using method of resistance material is: by described resistance material and roasting after roasted product mixes in graphitizing furnace, after roast, the purity of the graphitization product of gained is more than 98%. The resistance material that the embodiment of the present invention provides has reduction graphitization product ash, improves the advantages such as graphite rate. Its using method has advantages such as being effectively improved roasted product heat rate.
Description
Technical field
The present invention relates to carbon element field, in particular to a kind of resistance material and preparation method thereof.
Background technology
In recent years, carbon element industry is flourish, and its main material charcoal and graphite material are the nonmetal solid materials based on carbon, the material that wherein Carbon Materials is substantially made up of non-graphite matter carbon, and graphite material is then the material being substantially made up of graphite carbon. There is light weight, porous, electric conductivity, heat conductivity, corrosion resistance, lubricity, elevated temperature strength, thermostability, resistance to sudden heating, low-thermal-expansion, low elasticity, high-purity, the feature such as machinability.
Carbon product can be divided into graphite electrode class, carbon block class, graphite anode class, carbon resistance rod class by product purpose, stick with paste class, electricity charcoal class, carbon fiber bar class, special graphite class, heat exchanger of graphite class etc. Graphite electrode class, according to allowing to use electric current density size, can be divided into general power graphite electrode. High power electrodes, ultra-high power graphite electrode. Carbon block can be divided into carbon block for blast furnace, aluminum carbon block, electric furnace block etc. by purposes. Carbon product can be divided into carbon product, graphite product, Carbon fibe and graphite fibre etc. by working depth height. It is different with production technology that carbon product presses raw material, can be divided into graphite product, carbon product, carbon fiber bar, special graphite goods etc. Carbon product, by ash size contained by it, can be divided into again many ash goods and few ash goods (containing ash lower than l%).
Carbon product mainly has following several: (one) graphite electrode class: main with petroleum coke, needle coke for raw material, coal tar pitch makes bonding agent, make through calcining, dispensing, kneading, die mould, roasting, graphitization, machining, it is in electric arc furnace, discharge electric energy with electrical arc furnace charge is heated the conductor of fusing, according to its quality index height, common power, high power and ultra high power can be divided into. Graphite electrode includes: (1) general power graphite electrode. Allow to use the electric current density graphite electrode lower than 17A/ centimetre 2, be mainly used in the common power electric furnace of steel-making, refining silicon, refining yellow phosphorus etc. (2) oxidation-resistant coated graphite electrode. The graphite electrode of one layer of oxidation resistant protective layer of surface-coated, is formed and can conduct electricity and the protective layer of high temperature oxidation resisting, reduces consumption of electrode during steel-making. (3) high power graphite electrode. Allow the graphite electrode using electric current density to be 18～25A/ centimetre 2, be mainly used in the high power electric arc furnace of steel-making.(4) ultra high power graphite electrode. Allow to use the electric current density graphite electrode more than 25A/ centimetre 2. It is mainly used in ultra high power electric furnace arrangement for producing steel. (2) graphite anode class: main with petroleum coke for raw material, coal tar pitch makes binding agent, makes through calcining, dispensing, kneading, die mould, roasting, dipping, graphitization, machining. The conductive anode being generally used in electrochemical industry electrolysis installation. Including: (1) various chemical industry positive plate, (2) various anode stub. (3) carbon resistance rod class: with carbonaceous material such as anthracite and metallurgical coke (or petroleum coke) be raw material, coal tar pitch for binding agent, without graphitization, repressed molding and the conductive electrode that burns till. It is not suitable for the electric furnace of melting high-grade alloy steel. Including: (l) how grey electrode (electrode produced with anthracite, metallurgical coke, pitch coke); (2) regeneration electrode (electrode produced with Delanium, native graphite); (3) carbon resistant rod (i.e. charcoal element checker brick); (4) carbon anode (prebaked anode produced with petroleum coke); (5) firing electrodes blank.
Graphitizing furnace is the equipment that carbon element industry is conventional, it generally uses metallurgical char particle (or graphitization metallurgy char particle) is graphitization resistance material, graphitizing furnace is electric current produces heat by the furnace core resistance being made up of roasting product and resistance material, and roasting product is heated to the high temperature needed for graphitization.
Furnace core resistance is to be formed by the resistant series of the resistance of roasting product Yu resistance material, but the resistance of roasting product is much smaller compared with the resistance of resistance material, when being initially powered up, the resistance of resistance material accounts for about the 99% of furnace core resistance, when energising terminates, the resistance of resistance material also to account for about 97%, it can be said that the heat roasting product produced when being mainly electric current by resistance material in whole graphitizing process, it is of great significance so the operation of graphitizing furnace is had by the initial stage resistance of resistance material and resistance material resistance variations in whole galvanizations, actual production adjusts the spacing when method of furnace core resistance mainly has two: to be regulate roasting product shove charge, two is use after adopting the resistance material of different resistance coefficient or being mixed by a certain percentage by the resistance material of different resistance coefficients.
In prior art, resistance material is generally adopted graphitization metallurgical coke or metallurgical coke. If from the angle improving furnace temperature, wish that the resistance of resistance material is a little big, the numerical value that the resistance of resistance material also keeps higher up to the later stage that is energized, then all using metallurgical char particle is resistance material, but the resistance of resistance material differs bigger with the half-finished resistance of roasting, the temperature difference formed in galvanization is also big, it is easy to crack waste product. And when the graphitization metallurgical coke adopting resistance relatively low is resistance material, when being initially powered up, furnace core resistance is less, and the change of furnace core resistance is also less in galvanization, so advantageously reduce the temperature difference at each position of combustion chamber, can be unlikely to increase crackle waste product with the energising of ascending power faster, this is critically important to producing larger product, but influences whether the half-finished ash value of roasting owing to the ash rate of graphitization metallurgical coke own is higher. Therefore how finding a kind of applicable resistance material is nowadays main research direction.
In view of this, the special proposition present invention.
Summary of the invention
The first object of the present invention is in that to provide a kind of resistance material, and described resistance material has reduction graphitization product ash, improves the advantages such as graphite rate.
The second object of the present invention is in that to provide the using method of a kind of resistance material, the using method of described resistance material to have advantages such as being effectively improved roasted product heat rate.
In order to realize the above-mentioned purpose of the present invention, spy by the following technical solutions:
Embodiments providing a kind of resistance material, for the residual matter of Colophonium, the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 1%, and volatile matter content is less than 1%, and granularity is 10-30mm.
Preferably, the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 0.8%, and volatile matter content is less than 0.8%, and granularity is 10-20mm.
Preferably, the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 0.7%, and volatile matter content is less than 0.7%, and granularity is 15-20mm.
Preferably, the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 0.5%, and volatile matter content is less than 0.5%, and granularity is 18-25mm.
A kind of resistance material that the embodiment of the present invention provides, due to using residual for Colophonium matter as resistance material, meet the requirement of resistance material gray scale and the requirement that volatile matter content is few, density needs more than petroleum coke simultaneously, so, the resistance of the residual matter of Colophonium is also higher, calculate according to Joule's law, the heat that resistance material produces can be more, the temperature making roasting product is also higher, more than 3000 DEG C can be reached, improve graphite rate, the purity enabling the graphitization product produced reach 98% and more than, these advantages be all prior art uses graphitization metallurgical coke or graphitized coke incomparable, the consumption of the residual matter of Colophonium also will less than graphitization metallurgical coke or metallurgical coke simultaneously, owing in the residual matter of Colophonium, volatile matter content is relatively low, long-time heating, the mass attenuation of the residual matter of Colophonium is little, need not supplement, heat production will not reduce too much, efficiently roasting product can be heated.
Preferably, the residual matter of described Colophonium is tunnel cave after baking gained.
Preferably, the residual matter of described Colophonium is underbody formula roaster roasting gained.
The residual matter of described Colophonium is mainly derived from and obtains after roasted product in tunnel cave after baking stove and underbody formula roaster, and property indices such as volatile matter, ash all can meet the standard of resistance material.
Embodiments provide the using method of a kind of resistance material, comprise the steps: that after roast, the purity of the graphitization product of gained is more than 98% by described resistance material and roasting after roasted product mixes in graphitizing furnace.
Preferably, the temperature carrying out roasting in graphitizing furnace is 3000-3200 DEG C.
Preferably, the purity of described graphitization product is more than 99%.
Preferably, the ash of described graphitization product is less than 0.5%.
The using method of the resistance material that the embodiment of the present invention provides, improves the graphite rate of roasted product, decreases crackle percent defective, and the gray scale of product is relatively low, and purity is high.
Compared with prior art, the invention have the benefit that
(1) due to using residual for Colophonium matter as resistance material, meeting the requirement of resistance material gray scale and the requirement that volatile matter content is few, density needs more than petroleum coke simultaneously, and the resistance of the residual matter of Colophonium is also higher, the heat that corresponding resistance material produces can be more so that the temperature of roasting product is also higher;
(2) purity of the graphitization product produced can reach 98% and more than;
(3) consumption of the residual matter of Colophonium is less than graphitization metallurgical coke or metallurgical coke simultaneously, owing in the residual matter of Colophonium, volatile matter content is relatively low, and long-time heating, the mass attenuation of the residual matter of Colophonium is little, need not supplementing, heat production will not reduce too much, it is possible to efficiently roasting product is heated.
Detailed description of the invention
Below in conjunction with embodiment, embodiment of the present invention are described in detail, it will be appreciated by those skilled in the art that the following example is merely to illustrate the present invention, and are not construed as restriction the scope of the present invention. Unreceipted actual conditions person in embodiment, conventionally the condition of condition or manufacturer's suggestion carries out. Agents useful for same or the unreceipted production firm person of instrument, be and can pass through the commercially available conventional products bought and obtain.
Embodiment 1
The using method of resistance material is as follows:
By resistance material and roasting after roasted product mixes in graphitizing furnace, resistance material is content of ashes is less than 1%, and volatile matter content is less than 1%, and granularity is the residual matter of Colophonium of 10-30mm, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.3%.
Embodiment 2
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is less than 0.8%, volatile matter content is less than 0.8%, granularity is the residual matter of Colophonium of 10-20mm, the residual matter of Colophonium is tunnel cave after baking gained, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.4%.
Embodiment 3
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is less than 0.7%, volatile matter content is less than 0.7%, granularity is the residual matter of Colophonium of 10-20mm, the residual matter of Colophonium is tunnel cave after baking gained, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.3%.
Embodiment 4
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is less than 0.5%, volatile matter content is less than 0.5%, granularity is the residual matter of Colophonium of 18-25mm, the residual matter of Colophonium is tunnel cave after baking gained, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.4%.
Embodiment 5
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is 0.7%, volatile matter content is less than 0.8%, granularity is the residual matter of Colophonium of 15-20mm, the residual matter of Colophonium is tunnel cave after baking gained, after roast, the purity of the graphitization product of gained is 98%, and ash is 0.2%.
Embodiment 6
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is less than 0.8%, volatile matter content is less than 0.8%, granularity is the residual matter of Colophonium of 10-20mm, the residual matter of Colophonium is underbody formula roaster roasting gained, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.4%.
Embodiment 7
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is less than 0.8%, volatile matter content is 0.6%, granularity is the residual matter of Colophonium of 10-30mm, the residual matter of Colophonium is underbody formula roaster roasting gained, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.1%.
Embodiment 8
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is 0.5%, volatile matter content is 0.8%, granularity is the residual matter of Colophonium of 15-20mm, the residual matter of Colophonium is tunnel cave after baking gained, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.2%.
Embodiment 9
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is less than 0.8%, volatile matter content is less than 0.8%, granularity is the residual matter of Colophonium of 10-30mm, the residual matter of Colophonium is tunnel cave after baking gained and underbody formula roaster roasting gained, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.3%.
Embodiment 10
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is 0.4%, volatile matter content is 0.4%, granularity is the residual matter of Colophonium of 18mm, the residual matter of Colophonium is tunnel cave after baking gained and underbody formula roaster roasting gained, after roast, the purity of the graphitization product of gained is 99.5%, and ash is 0.2%.
Embodiment 11
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3000-3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is less than 0.8%, volatile matter content is less than 0.8%, granularity is the residual matter of Colophonium of 13mm, the residual matter of Colophonium is tunnel cave after baking gained, after roast, the purity of the graphitization product of gained is 98.5%, and ash is 0.3%.
Embodiment 12
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3100 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is 0.5%, volatile matter content is 0.5%, granularity is the residual matter of Colophonium of 19mm, the residual matter of Colophonium is tunnel cave after baking gained, after roast, the purity of the graphitization product of gained is 98.5%, and ash is 0.35%.
Embodiment 13
The using method of resistance material is as follows:
By resistance material and the roasting when temperature 3200 DEG C after roasted product mixes in graphitizing furnace, resistance material is content of ashes is 0.7%, volatile matter content is 0.8%, granularity is the residual matter of Colophonium of 24mm, the residual matter of Colophonium is and underbody formula roaster roasting gained, after roast, the purity of the graphitization product of gained is 99%, and ash is 0.25%.
Experimental example 1
The indices adopting graphitization metallurgical coke (comparative example 1) and metallurgical coke (comparative example 2) and the graphitization product obtained after roasted product roasting in the indices of the graphitization product obtained in graphitizing furnace and after roasted product roasting by the resistance material of embodiment of the present invention 1-13 and prior art compares, and specific targets are as shown in table 1 below:
Table 1 comparing result
| Group | Purity (%) | Ash (%) |
| Embodiment 1 | 99 | 0.3 |
| Embodiment 2 | 99 | 0.4 |
| Embodiment 3 | 99 | 0.3 |
| Embodiment 4 | 99 | 0.4 |
| Embodiment 5 | 98 | 0.2 |
| Embodiment 6 | 99 | 0.4 |
| Embodiment 7 | 99 | 0.1 |
| Embodiment 8 | 99 | 0.2 |
| Embodiment 9 | 99 | 0.3 |
| Embodiment 10 | 99.5 | 0.2 |
| Embodiment 11 | 98.5 | 0.3 |
| Embodiment 12 | 98.5 | 0.35 |
| Embodiment 13 | 99 | 0.25 |
| Comparative example 1 | 92 | 0.9-1 |
| Comparative example 2 | 93 | 0.9-1 |
As can be seen from Table 1, the resistance material that the embodiment of the present invention provides can allow the property indices of graphitization product all more excellent, and it can give roasting product in graphited process and produce more heat, consumption is also less, do not need follow-up supplementary resistance material, reduce production cost, and energy saving, improve the efficiency of heating surface.Take full advantage of the residual matter of Colophonium, saved resource, it is achieved that the recycling of resource, if in roaster produce the residual matter of Colophonium be not used to its carry out reprocessing cost also very high.
Although illustrate and describing the present invention with specific embodiment, however it will be appreciated that may be made that when without departing substantially from the spirit and scope of the present invention many other change and amendment. It is, therefore, intended that include all such changes and modifications belonging in the scope of the invention in the following claims.
Claims (9)
1. the using method of a resistance material, it is characterised in that comprise the steps: that after roasting, the purity of the graphitization product of gained is more than 98% by described resistance material and roasting after roasted product mixes in graphitizing furnace;
Wherein, described resistance material is the residual matter of Colophonium, and the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 1%, and volatile matter content is less than 1%, and granularity is 10-30mm.
2. the using method of a kind of resistance material according to claim 1, it is characterised in that the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 0.8%, volatile matter content is less than 0.8%, and granularity is 10-20mm.
3. the using method of a kind of resistance material according to claim 1, it is characterised in that the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 0.7%, volatile matter content is less than 0.7%, and granularity is 15-20mm.
4. the using method of a kind of resistance material according to claim 1, it is characterised in that the performance indications of the residual matter of described Colophonium are as follows: content of ashes is less than 0.5%, volatile matter content is less than 0.5%, and granularity is 18-25mm.
5. the using method of a kind of resistance material according to claim 1, it is characterised in that the residual matter of described Colophonium is tunnel cave after baking gained.
6. the using method of a kind of resistance material according to claim 1, it is characterised in that the residual matter of described Colophonium is underbody formula roaster roasting gained.
7. the using method of a kind of resistance material according to claim 1, it is characterised in that the temperature carrying out roasting in graphitizing furnace is 3000-3200 DEG C.
8. the using method of a kind of resistance material according to claim 1, it is characterised in that the purity of described graphitization product is more than 99%.
9. the using method of a kind of resistance material according to claim 1, it is characterised in that the ash of described graphitization product is less than 0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009182.3A CN104661337B (en) | 2015-01-08 | 2015-01-08 | A kind of resistance material and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009182.3A CN104661337B (en) | 2015-01-08 | 2015-01-08 | A kind of resistance material and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104661337A CN104661337A (en) | 2015-05-27 |
| CN104661337B true CN104661337B (en) | 2016-06-15 |
Family
ID=53251901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510009182.3A Active CN104661337B (en) | 2015-01-08 | 2015-01-08 | A kind of resistance material and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104661337B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892135B (en) * | 2018-06-22 | 2021-08-06 | 山西能源学院 | Method for graphitizing by using roasted fragments as resistance filler in Acheson type graphitizing furnace |
| CN110655074A (en) * | 2019-09-30 | 2020-01-07 | 广东凯金新能源科技股份有限公司 | Low-cost long-cycle graphite for energy storage and preparation method thereof |
| CN115417405A (en) * | 2022-09-27 | 2022-12-02 | 贵州东岛新能源材料有限公司 | Preparation method of resistance material and negative electrode material for Acheson graphitizing furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724860A (en) * | 2009-12-23 | 2010-06-09 | 中国地质大学（北京） | Baking-free type Si3N4-SiC-C fireproof brick for aluminum electrolytic bath side wall and preparation method thereof |
| CN102041011A (en) * | 2009-10-16 | 2011-05-04 | 中国石油化工股份有限公司 | Method for preparing needle coke through still coking |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60110787A (en) * | 1983-11-18 | 1985-06-17 | Fuji Sekiyu Kk | Fine fuel powder |
| CN102627978A (en) * | 2012-05-09 | 2012-08-08 | 江苏苏润高碳材股份有限公司 | Petroleum delay casting carbon material and preparation method thereof |
| CN103449426B (en) * | 2013-09-06 | 2015-11-18 | 辽宁大化国瑞新材料有限公司 | A kind of wear-resisting graphite and manufacturing process thereof |
-
2015
- 2015-01-08 CN CN201510009182.3A patent/CN104661337B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041011A (en) * | 2009-10-16 | 2011-05-04 | 中国石油化工股份有限公司 | Method for preparing needle coke through still coking |
| CN101724860A (en) * | 2009-12-23 | 2010-06-09 | 中国地质大学（北京） | Baking-free type Si3N4-SiC-C fireproof brick for aluminum electrolytic bath side wall and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104661337A (en) | 2015-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104649263B (en) | The preparation method of carbon graphite composite material | |
| EP1749121A1 (en) | Graphite electrode for electrothermic reduction furnaces, electrode column, and method of producing graphite electrodes | |
| CN108046812A (en) | A kind of Delanium crucible and preparation method thereof | |
| CN104661337B (en) | A kind of resistance material and using method thereof | |
| CN102363526A (en) | Ultra high power graphite electrode with its diameter being 650mm and production method thereof | |
| CN100494507C (en) | High-density semi-graphite cathode carbon block and method for producing same | |
| CN106565253A (en) | Preparation method of graphite lining for metal furnace | |
| CN102758220A (en) | Distributing method of prebaked anode for aluminum electrolysis | |
| CN102330114A (en) | Anode calcination filler | |
| CN108083274A (en) | Superhigh temperature continous way graphite purification device and method | |
| CN105645396B (en) | A kind of continous way direct current superhigh temperature graphitizing electric furnace and application method | |
| CN103613393B (en) | A kind of blast furnace lining brick fuel and preparation method thereof | |
| CN102951914A (en) | Electrode paste produced with industrial waste carbon material and preparation method thereof | |
| CN108264367A (en) | A kind of enhancing Delanium connector | |
| Rivoaland | Development of a new type of cathode for aluminium electrolysis | |
| CN108558426A (en) | A kind of preparation method of enhancing artificial graphite connector | |
| CN100480431C (en) | Production process for graphitized cathode | |
| CN104925792B (en) | A kind of method for preventing graphite electrode oxidative attack | |
| CN108585860B (en) | Preparation process of copper-based composite material pantograph slide plate | |
| CN102290141A (en) | Method for producing closed paste with waste carbon anode green blocks | |
| CN108662910A (en) | The method for forging coal and electric forging coal using graphitization waste heat substitution calcining furnace production Tai Xipu | |
| CN101420801A (en) | Graphite electrode with quasi-ultra-high power | |
| CN109824299B (en) | Electrode material for preparing brown corundum | |
| CN101665957B (en) | Anti-abrasion graphitization cathode carbon blocks used for aluminum electrolytic cell and manufacturing method thereof | |
| CN101210332A (en) | Graphitization cathode carbon block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160414 Address after: 611830 Sichuan Economic Development Zone, Dujiangyan, Sichuan, Chengdu, Dujiangyan Applicant after: CHENGDU CHENGXIN TECHNOLOGY CO., LTD. Address before: Dujiangyan City, Chengdu City, Sichuan province 610000 Jin Feng Xiang Applicant before: Dujiang weir, Sichuan Xi Matansu Co., Ltd |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |