HanDan ChaoYo Metallurgical Materials Co., Ltd
HanDan ChaoYo Metallurgical Materials Co., Ltd
Détails sur le produit:
Conditions de paiement et expédition:
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| Application: | EAF/LF | Diamètre: | 550 mm |
|---|---|---|---|
| Longueur: | longueur 1800mm | Résistance (μΩ.m): | ≤6.5 |
| Densité apparente (g/cm3): | ≥1,65 | Extension thermique: | ≤ 2.4 |
| Résistance à la flexion (N/m2): | ≥10.5 | Taper: | Bloc d'électrode |
| Grade: | UHP (puissance extrêmement élevée) | Connecter: | 4TPI |
UHP Graphite Electrodes for Electric-Arc Furnace/Ladle Furnace
Description:
Graphite electrodes are used mainly in ladle furnaces, electric-arc furnace steelmaking, Yellow phosphorus furnace, Industrial silicon furnace, or melting copper. They are presently the only products available that have high levels of electrical conductivity and the capability of sustaining the extremely high levels of heat generated in this demanding environment. High-Quality Needle Coke in HP&UHP graphite electrode, ensures the electrode application is perfect. Graphite electrodes are also used to refine steel in ladle furnaces and in other smelting processes.
The graphite electrode comprises:
(1) Regular power graphite electrode( RP grade Graphite Electrode) . Graphite electrode with current density less than 17a / cm2 is allowed to be used in common power electric furnaces for steelmaking, silicon smelting and yellow phosphorus smelting.
(2) Oxidation resistant coating graphite electrode. A graphite electrode coated with an anti-oxidation protective layer (graphite electrode anti oxidant). The formation of both conductive and high temperature oxidation resistant protective layer can reduce the electrode consumption (19% ~ 50%), prolong the service life of the electrode (22% ~ 60%), and reduce the electric energy consumption of the electrode. The popularization and application of this technology can bring such economic and social effects as follows: 1. The unit consumption of graphite electrode is less, and the production cost is reduced to a certain extent. For example, according to the consumption of 35 graphite electrodes per week and 165 refining heats of LF refining furnace in a steel-making plant without shutdown in the whole year, 373 (153 tons) electrodes can be saved every year by using graphite electrode oxidation resistance technology, and RMB 2585700 can be saved by RMB 16900 per ton of ultra-high power electrode per year. 2 The graphite electrode consumes less electricity, saves the unit electricity consumption of steelmaking, saves the production cost, saves energy! 3. Because the graphite electrode is replaced less times, the labor amount and risk coefficient of operators are reduced, and the production efficiency is improved. 4 Graphite electrode is a high consumption and high pollution product, which has a very important social significance in the days of promoting energy conservation, emission reduction and environmental protection. This technology is still in the stage of research and development in China, and some domestic manufacturers have begun to produce it. It is widely used in Japan and other developed countries. At present, there are also companies that import the anti-oxidation protective coating in China.
(3) High power graphite electrode (HP grade Graphite Electrode). Graphite electrode with current density of 18-25a / cm2 is allowed to be used in high power electric arc furnace for steelmaking.
(4) Ultra high power graphite electrode( UHP grade Graphite Electrode). Graphite electrode with current density greater than 25A / cm2 is allowed. It is mainly used in ultra high power EAF.
Specification
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Items
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Unit
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Nominal Diameter
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YB/T4090
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YLD-UHP
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350400
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450500
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350400
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400500
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550600
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Resistivity
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Electrode
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μΩm
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<=6.2
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<=6.3
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<=6.0
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<=6.0
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<=5.8
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Connector
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<=5.3
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<=5.3
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<=4.2
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<=4.2
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<=4.0
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||
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Flexural Strength
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Electrode
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Mpa
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>=10.5
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>=10.5
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>=11.5
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>=11.5
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>=11.0
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Connector
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<=20.0
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<=20.0
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<=21.0
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<=21.0
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<=23.0
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||
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Elastic Modulus
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Electrode
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Gpa
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<=14.0
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<=14.0
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<=14.0
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<=14.0
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<=14.0
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Connector
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<=20.0
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<=20.0
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<=20.0
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<=20.0
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<=22.0
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Bulk Density
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Electrode
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g/cm3
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>=1.67
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>=1.66
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>=1.71
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>=1.70
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>=1.68
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Connector
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>=1.74
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>=1.75
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>=1.76
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>=1.78
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>=1.80
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||
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Ash
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Electrode
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%
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<=0.5
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<=0.5
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<=0.3
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<=0.3
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<=0.3
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Connector
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|||||||
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Thermal Expansion Coefficient CTE
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Electrode
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10-6/ºC
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<=1.5
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<=1.5
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<=1.4
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<=1.4
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<=1.4
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Connector
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<=1.4
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<=1.4
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<=1.2
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<=1.2
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<=1.2
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||
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True Density
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Electrode
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g/cm3
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......
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......
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Application:
1. Be used for Steelmaking arc furnaces, refining furnace, as conducting electrode.
2. Be used for Metal-silicon furnace, Or-giraffe furnace, Corundum furnace etc. As conducting
electrode
Properties:
1. Good electrical conductivity.
2. Strong thermal shock resistance.
3. High mechanical strength.
Variety:
1. RP (Regular Power)
2. HP (High Power)
3. UHP (Ultra High Power)
4. RPI (Regular Power Impregnated)
(Notice: All of Graphite Electrodes is equipped to tapered nipple
Product Advantage
Quality Assurance & Control
· National Certified Laboratory
· Key testing instruments, including: specific resistor, bulk density meter, elasticmodulus meter, bending strength inspector, ash analysis meter, CTE analysis meter, etc.
· On-time instrument calibration
· On-site properties testing, including:
L-CTE,C-CTE
Specific resistance, bulk density,
Bending strength, ash content, elastic modulus
Production Application:
