Graphite Electrodes UHP with Nipples for Electric Arc Furnace
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- 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
Graphite Electrodes UHP with Nipples for Electric Arc Furnace
1.Diameter: 200 to 700mm
2.Length: 1600 to 2400mm
3.Nipple:3-4TPI
Graphite Electrodes UHP with Nipples for Electric Arc Furnace
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
Graphite Electrodes UHP with Nipples for Electric Arc Furnace
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.
UHP
Physical and chemical index
Item | Unit | Nominal Diameter(mm) | |||
YB/T4088-2000 | Typical Values | ||||
Industry Standard | |||||
300-400 | 450-550 | 350-550 | |||
Resistance | Electrode | ohm | ≤6.2 | ≤6.5 | 4.6-6.2 |
Nipple | ≤5.5 | ≤5.5 | 3.5-4.5 | ||
Bending Strength | Electrode | Mpa | ≥10.5 | ≥10.0 | ≥11.0 |
Nipple | ≥16.0 | ≥16.0 | ≥18.0 | ||
Elastic Modulus | Electrode | Gpa | ≤14.0 | ≤14.0 | ≤13.0 |
Nipple | ≤18.0 | ≤18.0 | ≤17.0 | ||
Density | Electrode | g/cm3 | ≥1.65 | ≥1.64 | 1.65-1.72 |
Nipple | ≥1.72 | ≥1.70 | 1.75-1.82 | ||
Ash content | Electrode | % | ≤0.3 | ≤0.3 | ≤0.3 |
Nipple | |||||
CTE(100-600) | Electrode | 10-6/C | ≤1.5 | ≤1.5 | 1.20-1.40 |
Nipple | ≤1.4 | ≤1.4 | 1.10-1.30 | ||
Image
Graphite Electrodes UHP with Nipples for Electric Arc Furnace
FAQ:
Graphite Electrodes UHP with Nipples for Electric Arc Furnace
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
Graphite Electrodes UHP with Nipples for Electric Arc Furnace
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:Is graphite flammable?Why do I bake pencil cores with a fever that doesn't burn?
- The temperature is not enough, the composition of graphite is carbon, of course, flammable, but each kind of object burning point is not the same, the nature of graphite is relatively stable, burning point is very high, cigarette lighter this temperature is certainly not burning up.Useful words, remember to adopt Oh, thank you ~!
- Q:I remember the more lively metal, the electron?
- Metal ion is more inert electron, graphite electrode for electrolytic salt solution containing the same amount of substance A and C two metals, C first precipitated, so C is copper. In a dilute sulfuric acid with H2 precipitation, certainly not a copper. The more active metal betatopic ability is strong, have the corresponding ion electronic ability weaker. First metal ions corresponding to metal electrons are not active.
- 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:Will the brush grease not short-circuit the commutator?
- The brush of motor is usually made of pure graphite electrode, electrochemical graphite electrode and metal fossil ink electrode material. Because it contains graphite, it has conductive effect on the one hand
- Q:What are the factors that affect the electrode wear rate of machine tools?
- Influence of pulse interval on electrode wear. When the pulse interval is large, the electrode loss increases, which is due to the deterioration of the thermal effect condition and the damage of the "covering effect".
- Q:Why should graphite paper be placed between the heater and the graphite electrode?
- . Different single crystal furnace heaters may be of the same size or may be different. The heater is determined according to the size of the Czochralski single crystal furnace and the parameters of the drawn single crystal, and is generally designed in the form of a parallel circuit, and the following parameters. A heater, the heater, the shape of two inner diameters of three, four, the effective length of the heater heater, the heater piece is five thickness and gives the heater diameter. These parameters are determined according to Czochralski single-crystal furnace parameters and its crystal diameter. The power transformer parameters are mainly based on the single crystal furnace heating power: maximum output power, maximum output voltage and maximum output current, diameter and height of the crucible. The design of the heater has the following steps: 1. Selecting and determining the shape of the heater; the heater is made of high purity graphite; the resistivity of the high purity graphite; the heater is usually made into a cylinder at present.
- 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:What's the use of carbon?
- High power graphite electrode. Allows the use of current density of 18 ~ 25A/ cm 2 graphite electrode, mainly used in steel-making high power arc furnace
- Q:Use of graphite in steelmaking
- Graphite can be used as an agent for carburizing in the steel making industry. Carburizing uses a wide range of carbonaceous materials, including synthetic graphite, petroleum coke, metallurgical coke, and natural graphite. Worldwide, the use of graphite for carburizing is still one of the main uses of earth like graphite.
- Q:Graphite electrode in milling machine processing, dust is especially big, boot 5 minutes, workshop can not open the figure, what is the solution?
- This is to use the dust collector, the graphite itself is a semiconductor, can not be electrostatic dust removal
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