Graphite Electrode RP


graphite electrode rp

Graphite electrode rp is made of petroleum coke and needle coke, coal tar pitch as binder, calcined, compounded, kneaded, pressed, calcined, graphitized, machined, is released in the form of electric arc in electric arc furnace. RP graphite electrode is manufactured for operation at currents with a density of not more than 17 A / cm2. RP graphite electrodes used in EAF and LF for steel making, as well as in electric smelting furnace for producing industrial silicon, phosphorus.

graphite electrode rp

Graphite Electrode RP Description

 

Graphite electrode rp uses domestic petroleum coke and asphalt as raw materials, in accordance with the regular power graphite electrode production processes, calcination, dosing, kneading, forming, baking, graphite and machining refined. The nipple uses one time of impregnation and two time of baking processes.

 

Properties of Graphite Electrode RP

 

.Good electrical conductivity,
.High resistance to thermal shock ,
.High mechanical strength,

.For steel making electric arc furnace.

 

Advantages of Graphite Electrode RP

 

.Excellent resistance to thermal shock and conduction,

.Good wear resistance, good lubricity and long service life,

.The surface can be used for the long life of anti oxidation treatment,

.High temperature resistance, corrosion resistance, strong acid resistance.

 

Technical Characteristics of Graphite Electrode RP

Name Unit diameter of electrode 300mm-600mm
standard Actual measurement
Electrode Nipple Electrode Nipple
Specific electrical resistivity μOhm • m 9.0-10.5 8.5 8.0-9.0 7.5
Limit of mechanical resistance to bending MPa 6.4-7.8 13 9.0-10 15
Elastic modulus GPa 9.3 14 9 13.7
Ash content, not more than % 0.5 0.3 0.5 0.3
Bulk density, not less than g / cm3 1.52 1.68 1.56-1.62 1.7.
Thermal coefficient of linear expansion × 10-6 / ℃ 2.9 2.8. 2.4 2.2

The Length & Diameter & Permissible Deviation of the Electrode

A type Diameter Length
Nominal diameter Nominal length tolerance
Millimeter (mm) Inch (inch)
Small type 75 2.95 1200/1400 ± 100
86 3.38 ± 100
100 3.93 ± 100
130 5.11 ± 100
150 5.9 1600/1800 ± 100
200 7.87 ± 100
225 8.85 ± 100
250 9.84 ± 100
Common Type 300 12 1600/1800/2000/2200 ± 100
350 14 ± 100
400 16 ± 100
450 18 ± 100
500 20 ± 100
550 22 ± 100
600 24 ± 100
Large type 780 30.7 2000 ± 100
800 31.49 ± 100
850 33.46 ± 100
960 37.79 ± 100
1200 47.24 ± 100

Graphite Electrode RP Current Capacity

Nominal diameter Permissible current power The current density (A / cm2)
Millimeter (mm) Inch (inch)
300 12 10000-13000 14-18
350 14 13500-18000 14-18
400 16 18000-23500 14-18
450 18 22000-27000 13-17
500 20 25000-32000 13-16
600 24 30000-36000 12-15

 

Applications of Graphite Electrode RP

 

Graphite electrode RP is used in an electric smelting furnace or an arc furnace of a total power for smelting steel, silicon, yellow phosphorus, etc. and RP Graphite electrode can be widely used in the electric smelting furnace for producing the ferroalloy, pure silicon, yellow phosphorus, copper matte, calcium carbide and so on.

 

Graphite Electrode RP Manufacturer from RS Refractory Factory

 

RS refractory factory as a professional graphite electrode rp manufacturer in china, have many competitive advantages in the market. if you have demand of rp graphite electrodes, or have some questions on rp graphite electrode about physical and chemical indicators, please contact us for free, we will provide you with high quality rp graphite electrodes.

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