Chemical Index of Graphite Electrodes HP with Nipples
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 3000 m.t./month
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Specifications
Chemical Index of Graphite Electrodes HP with Nipples
1.Diameter: 200 to 700mm
2.Length: 1600 to 2400mm
3.Nipple:3-4TPI
Chemical Index of Graphite Electrodes HP with Nipples
1. Grade: RP, HP, UHP, SHP, RPI
2. Diameter: 200 to 700mm at your choice.
3. Length: 1600 to 2400mm at your choice.
4. Nipple: 3-4 TPI
5. Fine mechanical strength and machining quality, low specific resistance, high temperature and oxidation resistance
6. Low price and timely delivery.
Feature
Chemical Index of Graphite Electrodes HP with Nipples
Grades: RP, RPI, HP, SHP, UHP
All graphite electrodes are offered with tapered nipples, i.e. 3 or 4 threads per inch, and meet the internationally accepted tolerances as per NEMA CG 1/ IEC 60239 / JIS R7201 standards.
HP
Physical and chemical index
Item | Unit | Nominal Diameter(mm) | |||
YB/T4088-2000 | Typical Values | ||||
Industry Standard | |||||
200-400 | 450-550 | 300-550 | |||
Resistance | Electrode | ohm | ≤7 | ≤7.5 | 5.0-6.8 |
Nipple | ≤6.5 | ≤6.5 | 4.0-5.0 | ||
Bending Strength | Electrode | Mpa | ≥10.5 | ≥9.8 | ≥11.0 |
Nipple | ≥14.0 | ≥14.0 | ≥16.0 | ||
Elastic Modulus | Electrode | Gpa | ≤12.0 | ≤12.0 | ≤11.0 |
Nipple | ≤16.0 | ≤16.0 | ≤15.0 | ||
Density | Electrode | g/cm3 | ≥1.60 | ≥1.60 | 1.63-1.70 |
Nipple | ≥1.70 | ≥1.70 | 1.73-1.80 | ||
Ash content | Electrode | % | ≤0.3 | ≤0.5 | ≤0.3 |
Nipple | |||||
CTE(100-600) | Electrode | 10-6/C | ≤2.4 | ≤2.4 | 1.8-2.2 |
Nipple | ≤2.2 | ≤2.2 | 1.5-1.8 |
Recommended current carrying capacity
Nominal Diameter | YB/T4088-2000 | Typical Values | |||
Industry Standard | |||||
Current Carrying | Currant Density | Electrical Arc Furnace | |||
Capacity | Current Carrying | Current Density | |||
in | mm | A | A/cm2 | A | A/cm2 |
12 | 300 | 13000-17400 | 17-24 | 15000-21000 | 21-29 |
14 | 350 | 17400-24000 | 17-24 | 20000-28000 | 21-29 |
16 | 400 | 21000-31000 | 16-24 | 24000-35000 | 19-28 |
18 | 450 | 25000-40000 | 15-24 | 29000-45000 | 18-28 |
20 | 500 | 30000-48000 | 15-24 | 34000-54000 | 17-27 |
22 | 550 | 35000-55000 | 14-22 | 34000-54000 | 16-25 |
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Chemical Index of Graphite Electrodes HP with Nipples
FAQ:
1. Why it is essential to select electrode carefully for each particular furnace?
The primary factor is the maximum current intensity of the furnace. However, other conditions should also be considered, such as the characteristics of the furnace, type of charge, tap to tap time, oxygen blowing, mechanical requirement, furnace regulation, etc.Generally, specifications for electrodes of most grades have been standardized. Variation of physical characteristics with temperature, however, should be taken into account whenever using the electrodes.
Precautions to the use of graphite electrodes
2. Why it is essential to not to fit electrodes and nipples made by different manufacturers together?
The capacities of the furnace and the transformer determine whether the grade and diameter of the electrode are suitable to the furnace or not.
In order to prevent the electrode column from being hit by the collapsed furnace loads, large and heavy scraps should be loaded onto the bottom of the furnace. Do not put significant quantity of insulating materials such as lime and so on just under the electrode column, otherwise it would be difficult to power on the electrode column, or even break it.
electrode column may be hurt when it moves up and down if the furnace cover is out of the position.
When making a connection, lost or damaged pitch plugs must be replaced.
The reason must be found out if a gap appears between two electrodes after connection. The electrode column can only be loaded after the gap being eliminated.
The electrode column must be strictly perpendicular to the ground lever. Oblique column is not allowed during operation.
The holder must be placed between the two safety marks on the top electrode, otherwise the column may be broken.
Generally, different manufacturers may make their electrodes with different raw materials and processes, therefore the physical and chemical properties of their electrodes are usually different. Please do not fit electrodes and nipples made by different manufacturers together.
Applications
Chemical Index of Graphite Electrodes HP with Nipples
Electrodes in electric arc furnace and ladle refining furnace for steel making;
Electrodes in electric smelting furnace for producing industrial silicon, yellow phosphorus, corundum and so on.
- Q:What are the structures of pyrolytic graphite electrodes? What are their properties and applications? We hope that some details will not be found
- The high purity graphite component is put into the furnace, and nitrogen and methane are produced under vacuum high temperature. Then graphite is shown to produce 10% coating.
- Q:Graphite graphite graphite graphite electrode what is the use?
- The graphite electrode can be divided into artificial graphite electrode and natural graphite, artificial graphite electrode is the main raw material of petroleum coke and pitch coke, made after graphitization process of the natural graphite electrode is better than that of artificial graphite electrode, and does not require the graphitization process is complex, it can save energy, therefore, natural graphite electrode the rapid development in recent years.
- Q:Graphitized coke, graphite, broken, mixed up, how to export?
- Graphite electrode pieces in different data definition of graphite scrap is different, some data and literature of the graphite particles are called not great pieces of graphite (such as graphite) and some say that graphite products have a certain size, into a block of graphite broken, we are here to say Shi Mosui is second, often called as the graphite block. The production of graphite from graphite products, graphitization and machining process. Graphite waste used as an additive and as a conductive material in the steelmaking and casting industries.
- Q:How large is the permissible overload current per square millimeter of the graphite electrode cross section?
- 9A/mm2 safety current should be bare overhead, 5A/mm2 is obviously insulation lines, the indoor environment standards.
- Q:Electrolysis of CuCl2 solutions with graphite electrodes
- After energization, electrolysis occurs, not ionizationIonization does not require energization, and can occur in aqueous or molten state.
- Q:Graphite electrode press device
- Graphite electrode is mainly in the petroleum coke and needle coke, coal tar pitch as binder, calcination, mixing, kneading, pressing, baking and graphitization, and made the processing machine, is a conductor in an electric arc furnace to form arc release electricity for heating and melting of the charge, according to the quality index level, can is divided into ordinary power, high power and ultra high power.
- Q:Electrolytic salt water why use iron as a cathode, all with graphite can not?
- When electrolyzed salt water is used, the cations in the solution (H+, ionized by H2O) are moved to the cathode by the electric field force, and electrons are generated at the cathode to produce H2 hydrogen, and the hydrogen H2 generated does not react with iron
- Q:Classification, uses and manufacturers of graphite electrodes
- Classification of graphite electrodes:(1) common power graphite electrode (RP), (2) high power graphite electrode (HP), (3) quasi ultra high power graphite electrode (SHP), (4) ultra high power graphite electrode (UHP) Note: poly carbon classification method
- Q:What is the reason that the current cannot be increased when the graphite electrode is used for anode electrolysis?Add calcium chloride and sodium bicarbonate into electrolytic water
- The first answer to the equation above is quite right, or it may be that a layer of calcium carbonate is attached to the surface of the electrode, which prevents the electrode from conducting and leads to an increase in resistance
- Q:Specification for graphite electrodes commonly used in steel works
- The variety and specifications of graphite electrodes used in modern EAF steelmaking are mainly determined by the technical parameters of the steelmaking furnace. With the development of EAF steelmaking technology, the steel-making technology is developing towards large scale and ultra high power. The graphite electrode is mainly made of large size graphite electrode and ultra high power graphite electrode.
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Chemical Index of Graphite Electrodes HP with Nipples
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 3000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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