RP HP SHP UHP grade Graphite Electrodes

Graphite electrodes are manufactured with high quality raw material including petroleum cokes, needle

cokes and coal tar pitch through the production process of calcining, crushing, burden, mixing kneading, extruding, baking, impregnation, graphitization, manufacturing and packing.

Do you know how to choose the graphite electrode?

When you choose electrodes grade, pls note the current of the electrodes, then choose suitable grade, not means UHP is the best for small current, not means lower price suitable for high current, do note this!

Usually into wooden box or platte, with plasticfim, like photo shown

 The graphite electrodes are widely use in electric arc furnaces and ladle refining furnaces for steel making and used in electric smelting furnaces for producing industrial silicon, yellow phosphorus, corundum, nonmetals and so on.

The matters needing attention when using graphite electrode:

   1: According to the electric furnace transformer capacity and load, choose appropriate grade and diameter of the electrode

   2: Electric furnace charging, large burden should be placed in the bottom of the furnace, so as not to burden fall fractured electrode. In the process of smelting, should avoid a lot of lime and other non-conductive objects gathered just below the electrode, otherwise it will affect the electrode electricity, even lead electrodes break.

   3: Pay attention to the position of furnace cover. If the furnaces cover deviation, the electrode will touch the furnace cover if the furnace cover in lifting, and cause electrode damage

   4: When connecting the electrodes, if there is joint bolt defect and should be replaced before connecting filled

   5: after connected the graphite electrode, you should to  check the attach surface, if find gap, you must to find out the cause. And You can use it until the gap disappeared.

   6: The electrode must be vertical use , It is forbidden to tilt

   7: Electrode holder should be sandwiched between the up and down of the top electrode parts between two lines. Do not clip in line (joint hole) and in the middle of the electrode, electrode column break easily otherwise.

   8:Because of different manufacturers of raw materials and production processes may differ, their physical and chemical properties of the electrodes also have some differences, it is recommended that not to swop use joints and electrodes of different manufacturers

Do you know our material of the graphite electrode?

The regular power graphite electrode is made from petroleum coke with a little pitch, which meets  the state standards YB/T4088-2000

The high power graphite electrode is made form 70% petroleum coke and 30% imported needle coke, which meets the state standards YB/T4089-2000

The ultra high power graphite electrode is made form 100% imported needle coke, which meets the state standards YB/T 4090-200

Note: Needle coke is one kinds of very important material to produce the high grade graphite electrode, which is rapid development in carbon graphite industry. The needle coke own the following characteristics: low electric resistance, low dilatation coefficient, good electric and thermal conductivity, high oxidation resistance, greater resistance to thermal and mechanical shock, high mechanical strength, high machining accuracy, low consume.

Do you know the use of the graphite electrode?

1)It is used for the electric arc furnace steel making. (About 70-80% graphite electrode is used for steel making).

2) It is used for the submerged arc furnace, including melting iron alloy, pure silicon, yellow phosphorus, matte, calcium carbide and so on.

3) It is used for the resistance furnace, such as the graphite making, melting glass, silicon carbide making and so on.