Graphite Electrode

Description

Description of Graphite Electrode
 
The graphite electrode will be a high-temperature graphite conductive material, the core of which consists of petroleum coke, tar coke as a filler, coal tar as a binder. We produce graphite electrodes and nipples to them. Graphite electrodes are characterized by low resistance, good electrical conductivity and thermal conductivity, high resistance to oxidation and thermal shock, high mechanical strength, etc.
 
Catalogue 
★ Graphite Electrode Application
★ Classification of Graphite Electrodes
★ Graphite Electrodes Product Photos
★ The Length & Diameter & Permissible Deviation of Graphite Electrode
★ Technical Characteristics of Graphite Electrode RP, HP, UHP
★ Technical Characteristics of High Density Graphite Electrode (HD)
★ Technical Characteristics of a Quasi-Superhigh-Gauge Graphite Electrode (EGPK-SHP)
★ Advantages of Graphite Electrode
★ Use of Graphite Electrode
★ Our Suggestions before Connecting the Electrode
★ When Connecting the Electrodes, Please Note
★ Graphite Electrode Application


★  Graphite Electrode Application

1 for EAF arc furnace;
2 for ore-thermal furnace; for the resistance furnace;
3 for the production of profiled graphite products;
4 for the production of shaped graphite products.

Diameter of electrodes:  from 75 to 800mm. We can produce various specifications in accordance with customer requirements.
 
Our advantages: Manufacturer from China; Buy directly from the factory; High-quality products; Profitable price.
 
★ Classification of Graphite Electrodes
  ★ Graphite Electrodes Product Photos
 

 
★ The Length & Diameter & Permissible Deviation of Graphite Electrode
 

Nominal Diameter		Actual Diameter			Length (mm)	Tolerance
MM	Inch	Poppy	Mines	The Minimum Size Of The Black Part		Length	Short Length
75	3	78	73	72	1400/1600	± 100	-275
100	4	103	98	97	1400/1600
130	5	132	127	126	1400
150	6	154	149	146	1400/1600/1800
175	7	180	174	172	1400/1600
200	8	205	200	197	1600/1800
225	9	230	225	222	1600/1800
250	10	255	251	248	1600/1800
300	12	307	302	299	1600/1800/2000
350	14	357	352	349	1600/1800/2000
400	16	409	403	400	1600/1800/2000/22000
450	18	460	454	451	1600/1800/2000/22000
500	20	511	505	502	1600/1800/2000/22000
550	22	562	556	553	1800/2000/2200/2400
600	24	613	607	604	2000/2200/2400/2700
650	26	663	659	656	2000/2200/2400/2700
700	28	714	710	707	2000/2200/2400/2700

★ Technical Characteristics of Graphite Electrode RP, HP, UHP
 

Name		Unit	Nominal Diameter
			UHP Ultra-High-Power		HP Superstrong		RP Conventional Power
			≤Φ400	≥Φ450	≤Φ400	≥Φ450	≤Φ300	≥Φ350
Resistivity	Electrode	ΜΩ · m	≤5.5		≤6.5		≤8.5
	Nipple		≤4.5		≤5.5		≤6.5
Flexural Strength	Electrode	MPa	≥11.0		≥10.5	≥9.8	≥8.5	≥7.0
	Nipple		≥20.0		≥16.0		≥15.0
Elastic Modulus	Electrode	GPa	≤14.0		≤12.0		≤9.3
	Nipple		≤18.0		≤16.0		≤14.0
Density	Electrode	g / cm3	≥1.66	≥1.67	≥1.62	1.6	≥1.53	≥1.52
	Nipple		≥1.75		≥1.73		≥1.69
Coefficient Of Thermal Expansion	Electrode	10-6 / ℃	≤1.5		≤2.4		≤2.9
	Nipple		≤1.4		≤2.2		≤2.8
ASH		%	≤0.3		≤0.3		≤0.5
Note: 1.Koeffitsient ash content and thermal expansion as the reference index, the coefficient of thermal expansion (100 ℃ ~ 600 ℃), Custom manufacturing.

 
★ Technical Characteristics of High Density Graphite Electrode (HD)
 

Name		Unit	Nominal Diameter
			75-200 mm		250-300mm		400-500mm
			top grade	first grade	top grade	first grade	top grade	first grade
Resistivity (Not More Than)	Electrode	ΜΩ · m	8.0	9.0	8.0	9.0	8.0	9.0
	Nipple		7.5		7.5		7.5
Flexural Strength(not less than)	Electrode	MPa	10		9		8
	Nipple		13		13		13
Elastic Modulus(no more)	Electrode	GPa	12		12		12
	Nipple		14		14		14
Density(not less than)	Electrode	g / cm3	1.58		1.58		1.58
	Nipple		1.68		1.68		1.68
Coefficient Of Thermal Expansion (No More)	Electrode	10-6 / ℃	2.7.		2.7.		2.7.
	Nipple		2.5		2.5		2.5
Ash Content (not more than)		%	0.3		0.3		0.5
Note: 1. The coefficient of ash content and thermal expansion as a reference index.

 
★ Technical Characteristics of a Quasi-Superhigh-Gauge Graphite Electrode (EGPK-SHP)
 

Name		Unit	Nominal Diameter (mm)
			300, 350, 400	450, 500
Resistivity (not more than)	Electrode	ΜΩ · m	6.2	6.5
	Nipple		5.5	5.5
Flexural Strength(not less than)	Electrode	MPa	10.5	10
	Nipple		16	16
Elastic Modulus(no more)	Electrode	GPa	14	14
	Nipple		18	18
Density(not less than)	Electrode	g / cm3	1.65	1.64
	Nipple		1.72	1.7
Coefficient Of Thermal Expansion (no more)	Electrode	10-6 / ℃	1.5	1.5
	Nipple		1.4	1.4
Ash Content (not more than)		%	0.3	0.3
Note: 1. Zonality as a reference index.

If you have any requirements, please Contact Us. Our engineers will help you and provide appropriate advice. 
 
★ Advantages of Graphite Electrode
 
1 The process of graphite electrode production is simple, high efficiency, small graphite loss
2 Fast processing speed, lower production costs
3 Different sizes available, including large diameter
4 Our graphite electrodes are very durable and have a long service life
 
★ Use of Graphite Electrode

1 For arc furnaces of electric arc furnaces. Graphite electrodes are most often used in a coal-smelting electric furnace.
2 For a closed arc
3 For a resistor furnace
4 For the production of graphite shaped products. The graphite electrode blank is also used for processing in various crucibles, shapes, boats and heating elements and other graphite products. For example, in the quartz glass industry, for each production of 1 ton of an electric melting tube, a graphite electrode 10 m is required, for each quartz brick of 1 ton it is necessary to consume 100 kg of graphite electrode.
 
★ Our Suggestions before Connecting the Electrode
 
1 Please check the internal thread of the electrode first. If the thread is not intact, please contact sales staff to confirm whether the electrode can work properly.
2 Please clean the electrodes with compressed air before connecting.
3 When the electrode is squeezed into the electrode hole at one end, the pad can be prepared at the other end to avoid nipple breakage.
 
★ When  Connecting the Electrodes, Please Note

1 drop down slowly when the new electrode is directly above the hole connected to the electrode.
2 put the insulator between the two electrodes, and the electrode drop slowly to prevent the electrode hole breakage and nipple threads.
3 Raise the new electrode slightly, and then remove the insulator, connect the two electrodes.
4 Tighten the electrodes with a proper wrench and specified torque.