Aug. 06, 2020
As a Graphite Electrodes Supplier, share with you. Graphite as an electrode
refers to the use of petroleum coke and pitch coke as aggregates and coal pitch
as binder, which are made by calcining, crushing and grinding, batching,
kneading, molding, roasting, impregnation, graphitization and mechanical design
and processing of different raw materials. A kind of high temperature resistant
and graphite conductive composite material. Graphite rods are often used as
electric heating elements in high-temperature vacuum furnaces. The maximum
operating temperature can reach 3000℃. It is easy to oxidize at high
temperatures. Except for vacuum, it can only be used in a neutral or reducing
atmosphere. Its thermal expansion coefficient is small, thermal conductivity is
large, resistivity is (8~13)×10-6 Ω·m, processability is better than SiC, MoSi2
rod, high temperature resistance, extreme cold and extreme heat resistance, good
price Cheaper. Graphite electrodes are mainly made of petroleum coke and needle
coke as raw materials, coal tar pitch as a binder, and are made by calcination,
batching, kneading, pressing, roasting, graphitization, and machining. It
releases electric energy in the form of electric arc in an electric arc furnace.
The conductors used for heating and melting the charge can be classified into
ordinary power, high power and ultra-high power according to their quality
indicators. Graphite electrodes mainly include four types of ordinary power
graphite electrodes, anti-oxidation coating graphite electrodes, high power
graphite electrodes and ultra-high power graphite electrodes. Graphite block is
a kind of artificial graphite, and artificial graphite is made by artificial
heating of coke products. Generally, if it is purified to make high-purity or
carbon fiber, the added value is high.
What material is good for graphite electrode machining tools?
Graphite has good strength, low thermal expansion coefficient, good cutting performance and good thermal conductivity at high temperatures, so graphite electrodes are widely used in metallurgy, electric furnaces, electric discharge machining and other fields. In the field of EDM, the development of new graphite electrode materials and their processing technology has expanded the application range of EDM and improved its performance. Compared with copper electrodes, graphite electrodes have the advantages of low electrode consumption, fast processing speed, good processing performance, high processing accuracy, small thermal deformation, light weight, easy surface treatment, high temperature resistance, high processing temperature, and strong electrode adhesion.
Our company also has Graphite Electrodes on sale, welcome to contact us.