Graphite Electrode for Arc Furnaces/HP Electrode Graphites

Graphite Electrode for Arc Furnaces/HP Electrode Graphites System 1

Graphite Electrode for Arc Furnaces/HP Electrode Graphites

Ref Price:: $1,700.00 - 1,900.00 / m.t.

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 100 m.t.

Supply Capability:: 5000 m.t./month

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1. Specifications of Graphite Electrodes

.Grade:RP,HP,UHP,SHP,RPI

.Diameter:200 to 700mm at your choice.

.Length: 1600 to 2400mm at your choice.

.Nipple:3-4 TPI

.fine mechanical strength and machining quality,low specific resistance, high temperature and oxidation resistance

2. Applications of Graphite Electrodes

Used in EAF and LF for steel making, as well as in electric smelting furnace for producing industrial silicon, phosphorus, etc.

3. Grades: RP, RPI, HP, SHP, UHP

Details Information
Items		Unit	RP		HP		UHP
			250-300mm	350-550mm	200-400mm	450-550mm	300-400mm	450-550mm
Resistivity(MAX)	Electrode	μΩm	9		7	7.5	6.2	6.5
	Nipple		8.5		6.5		5.5
Bending Strenth(MIN)	Electrode	Mpa	7.8	6.4	10.5	9.8	10.5	10
	Nipple		13		14		16
Elastic Modulus(MAX)	Electrode	Gpa	9.3		12		14
	Nipple		14		16		18
Bulk Density(MIN)	Electrode	g/cm3	1.52		1.6		1.65	1.64
	Nipple		1.68		1.7		1.72	1.7
Ash(MAX)	Electrode/Nipple	%	0.5		0.3		0.3
CTE(MAX)	Electrode	10-6/°C	2.9		2.4		1.5
	Nipple		2.8		2.2		1.4

Tolerances of electrode diameters and lengthes(mm)
Nominal Diameter	Actual Diameter			Length
Nominal Diameter	Max	Min	Black surface min	Length
250	256	251	248	1600/1800
300	307	302	299	1600/1800
350	357	352	349	1600/1800
400	409	403	400	1600/1800/2000/2200
450	460	454	451	1600/1800/2000/2200
500	511	505	502	1800/2000/2200/2400
550	562	556	553	1800/2000/2200/2400

Recommended current carrying capacity
Nominal diameter		RP		HP				UHP
		Electrical Arc furnace		Electrical Arc furnace		Ladle Refining furnace		Electrical Arc furnace		Ladle Refining furnace
		Electrical Arc furnace		Electrical Arc furnace		Ladle Refining furnace		Electrical Arc furnace		Ladle Refining furnace
		Current carrying capacity	Current Density	Current carrying capacity	Current Density	Current carrying capacity	Current Density	Current carrying capacity	Current Density	Current carrying capacity	Current Density
Inch	Mm	A	A/ cm2	A	A/ cm2	A	A/ cm2	A	A/ cm2	A	A/ cm2
12	300	11000-15000	15-21	13000-17500	18-25	15000-21000	21-29
14	350	15000-20000	15-20	17500-24500	18-25	20000-28000	21-29	22000-31000	23-32	24000-33000	25-34
16	400	19000-26000	15-20	21500-32000	17-25	24000-35000	19-28	28000-41000	22-32	31000-44000	24-34
18	450	23000-31000	14-19	26000-40500	16-25	29000-45000	18-28	33000-46000	20-28	36000-49000	22-30
20	500	28000-36000	14-18	32000-50000	16-25	34000-54000	17-27	38000-56000	19-28	42000-60000	21-30
22	550	32000-42000		37000-57000	15-23	40000-62000	16-25	45000-65000	18-26	50000-70000	20-28

4. Pictures of Graphite Electrodes Factory

Graphite Electrode for Arc Furnaces/HP Electrode Graphites

5. FAQ

We have organized several common questions for our clients，may help you sincerely：

①How about your Warranty of Graphite Electrode for Arc Furnaces？

Warranty: 1-Year for the whole light. Warranty is based on correct storage, installation, using and maintenanc

②How to guarantee the quality of the products Graphite Electrode for Arc Furnaces？

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance. We have D&B report and you could check details information for our company.

③How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible.

Q:Why should graphite paper be placed between the heater and the graphite electrode?: Determine the thickness of the graphite bowl, the thickness of the graphite bowl is generally 3 mm -6 mm, three, determine the diameter of the heater, according to the diameter of the crucible and the thickness of the graphite bowl, calculate the inner diameter of the heater. The gap in the quartz crucible diameter phi = +2 times is +2 times the wall thickness of stone bowl bowl and graphite heater if the graphite bowl wall thickness is a, graphite bowl gap and heater for B (b=5 mm), phi = Phi Phi +2a+2b= within the outer crucible outer crucible +2 (a+b) four, to determine the effective heater the height after practice, the effective length of the quartz crucible heater is high 1.6 to 1.8 times.

Q:How should carbon deposits be treated?: In this way, can keep the engine seal, to prevent oil because the gap is too large and rampant, buried carbon curse generation "".

Q:The future of graphene: Sensor domain. Graphene due to its unique two-dimensional structure is widely used in sensor, has the advantages of small size, large surface area, high sensitivity, fast response time, fast and easy electron transfer protein immobilization and maintained its activity and other characteristics, can improve the performance of sensor. Mainly used in the production of gas, biological molecules, enzymes and DNA electrochemical sensors. Singapore Nanyang Technology University developed a graphene light sensor sensitivity is 1000 times the ordinary sensor; the Rensselaer Polytechnic Institute developed performance than the existing commercial gas sensor cheap graphene sponge sensor.

Q:What are the factors that affect the electrode wear rate of machine tools?: Effect of processing voltage on electrode wear. The processing voltage is the average voltage between the discharge time and the gap. When the voltage is lower than the power supply voltage (voltage) 25%, electrode loss will increase, which is due to the electrode and the workpiece is too close, the discharge column energy is too large, the electrodes generate heat radiation is too strong, at the same time, there are a large number of continuous arc discharge. But the working voltage is too high (partial load processing), bad conditions of thermal effect in the gap, is not conducive to the adsorption of copper electrode of carbon graphite, destroy the covering effect. Similarly, the electrode loss increase, therefore, corresponding to different processing standards should be selected to adjust the discharging gap voltage.

Q:How much does a graphite electrode cost about a ton?: Electrode is divided into ordinary power motor, high power electrode, ultra high power electrode, the gap between the price is still relatively large

Q:Jiqiu conductive graphite electrode, how to compare with copper is relatively large resistance value?: Look at what kind of graphite electrode you need. Now, the resistivity of ordinary power graphite electrode in our factory is 7.5-8.5. It is not clear that the graphite electrode is dipped in 6--7.3. copper

Q:Electrolysis of CuCl2 solutions with graphite electrodes: CuCl2 refers to a copper chloride ionization ionization ion and chloride ion in aqueous solution, the equivalent of CuCl2 does not exist, but there are only Cu2+ and Cl-, even if there is no electricity, the ionization will happen, because this is the nature of it.

Q:How can hydrogen be produced by electrolysis of sodium hydroxide with graphite as an electrode?: Because there is no hydrogen ions in the molten state of sodium hydroxide, sodium hydroxide and the onlyThis reaction should have occurred,Na+ + e=Na4OH-- 4e=O2+H2O

Q:How can I electroplate iron? I would like to use graphite as an electrode. Iron is plated on graphite with iron solution, so it can be processed into iron parts. I wonder if it can be done: Infeasible!Iron plating is not easy because two - valent iron is not well - controlled with ferric ironGenerally, metal plating with multivalent States is not well controlled

Q:In EDM, the electrodes are made of graphite and copper. Please tell us the difference between them: For the mold finishing, most of the time are red copper click, low loss, high precision, of course, higher precision, or requirements of copper tungsten alloy electrodes are also available

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