Graphite Electrode Importer Chemical Index with Nipples HP
- Ref Price:
-
- 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: Why is graphite conductive electrode oxidized?
- The reason for its oxidation is that it is oxidized at atmospheric temperature by reacting with the oxygen in the air
- Q: Classification, uses and manufacturers of graphite electrodes
- Graphite as electrode(1) the processing speed is faster: normally, the mechanical processing speed of graphite can be 2~5 times faster than copper, while the discharge processing speed is 2~3 times faster than copper;More material is not easily deformed: obvious advantages in the processing of thin electrodes; copper softening point at about 1000 degrees, easily deformed by heat; graphite sublimation temperature is 3650 degrees; the thermal expansion coefficient of copper is only 1/30.(2) lighter weight: the density of graphite is only 1/5 of copper. When large electrode is used for discharge machining, it can effectively reduce the burden of machine tools (EDM). It is more suitable for large-scale die applications.
- Q: Thermal expansion coefficient of graphite
- In the graphite electrode, the national standard, the volume density in more than 1.60 of both high power graphite electrode, of course because of the national standard index is low now, the volume density of normal power graphite electrode factory can reach 1.65, such as Chengde and long carbon factory.
- Q: Why graphite can be used as conductive material?
- Graphite used in the electrical industry requires a high degree of particle size and grade. Such as alkaline batteries and some special electric carbon products, requiring graphite particle size control within the scope of the project, grade above, harmful impurities are required in the following. The graphite used in a picture tube for television is required below. As a wear-resistant and lubricating material, graphite is often used as a lubricant in the mechanical industry.
- Q: How to solve the problem of graphite electrode being crushed during electrolysis
- I can only use the experience of the past to tell you that if you want to save money easily, the time can be considered as the costA thick graphite stick; inexpensive
- Q: The future of graphene
- A report released recently pointed out that the Chinese Academy of Sciences, graphene research and industrialization continues to heat up, from the distribution of graphene patents in the field, including the application of technology research hot spots: layout of graphene as a electrode material of lithium ion batteries, solar battery electrode materials, thin film transistor preparation, sensor, semiconductor device, composite material preparation of transparent, touch screen display, transparent electrode
- Q: Will the brush grease not short-circuit the commutator?
- Graphite, on the other hand, has good lubrication. The graphite base electrode will form a layer of carbon film when it rotates on the surface of the motor commutator. It can reduce the friction coefficient between the brush and the commutator and reduce the wear of the commutator effectively.
- Q: Is the anode of electrolytic water suitable for ordinary titanium wires?
- Graphite firstFirst of all, the titanium electrode is usually not pure titanium, it should be titanium with a metal oxide coating. Secondly, the advantages of the titanium electrode is mainly to save electricity, the corrosion resistance of carbon is much stronger than that of industrial production, if the meaning is relatively large, but it is still in laboratory experiments, electrolysis of water, not what meaning.
- Q: What's the purpose of the electrode material?When the electrolytic molten state of NaCl is said, what is the use of the graphite electrode and the iron electrode?
- 1. graphite (two kinds of EDM3 and EDM200)2. copperIn general, graphite electrode for extensive escape material (graphite texture loose, discharge energy is relatively large, removal of materials faster, but face flowers that roughness is relatively large
- Q: What are pyrolytic graphite electrodes used for?
- In 1960s, copper is widely used as electrode material, usage rate of about 90%, about graphite only 10%; in twenty-first Century, more and more users start using graphite as the electrode material, in Europe, more than 90% above the graphite electrode material is. Copper, the once dominant electrode material, has almost lost its advantages over graphite electrodes.
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Graphite Electrode Importer Chemical Index with Nipples HP
- Ref Price:
-
- 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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