China Manufacturer for Hp Uhp Rp Graphite Electrode - HP Graphite Electrodes – Tiantian

Industrial silicon smelting and heating furnace。     When the graphite electrode is used to smelt industrial silicon, it acts as a carrier for large currents and delivers the current to the ore furnace to generate the resistance heat and arc heat required to produce industrial silicon. Main physical and chemical indicators of graphite electrodes  Graphite electrode meets or exceeds the requirements of YB/T4300-2012 "large-size graphite electrode for ore furnace" and other related electrodes Size   Product standards

project

unit

Graphite electrode acceptance criteria

Concession standard

Resistivity≤

μΩm

15.0

-

Flexural strength≥

MPa

6.0

-

Elastic Modulus≤

GPa

9.3

-

Bulk density≥

g/cm3

1.60

-

Thermal expansion coefficient≤

10-6/℃

3.6

-

Current density≥

A/cm2

7.9

-

Ash≤

%

0.8

-

Fe≤

ppm

1200

-

Al≤

ppm

200

-

Ca≤

ppm

300

-

P≤

ppm

30

-

B≤

ppm

50

-

 
The raw materials Graphite Electrodes  from Tiantian Factory are a high temperature resistant graphite conductive refractory material used in the metallurgical industry. Graphite Electrode is made of petroleum coke, bituminous coke as aggregates, coal tar pitch as binders, after raw material calcination, crushing and milling, batching, kneading, molding, roasting, impregnation, graphitization and machining, which is also known as artificial graphite electrodes in order to distinguish from natural graphite electrodes made of natural graphite. Production flow chart   Electrode quality   (1)There are no more than two holes or holes in the surface of the electrode. The diameter is less than 20mm and the depth is less than 5mm.;   (2)Joints and joint holes and electrode surfaces within 100 mm from the bottom of the hole are not allowed to have holes and cracks;   (3)The joint of the joint and the joint hole thread is not more than one, and the length is not more than 20mm;   (4)No transverse cracks are allowed on the electrode surface. Longitudinal cracks with a width of 0.3-0.5 mm, the length of which is not more than 5% of the circumference of the electrode, no more than two.   (5)The electrode current can be safely sent to more than 100000A.   packing