What's the Real Isotropic Graphite

Nowadays, Isotropic Graphite is popular with many industries, such as Monocrystal Pulling, Electrical Discharge Machining, and Casting Mould etc. But how do you think about the isotropic graphite? What’s the real isotropic graphite? There is a doubt, and we reveal it.

In graphite industry, the isotropic graphite have another professional name“Isostatic Graphite”.What does isotropic or isostatic mean? I think I need to introduce the graphite productive process.   

The coke is crushed and grinded in the first. They are mixed sufficiently. Then, they are screened and pressed. Here, the press is different. The stress modes are tetrahedral and evenly stressed, which is differ from the molded graphite, as molded graphite are pressed by two sides, not all. Only by these fully stress, the bulk density can be called isotropic and isostatic. The green billet should be baked and impregnation. They are named carbon after baking and pitch impregnation. At last, by graphitization and purification, the finally product graphite are completed.

In addition, the flexural strength of isotropic graphite is as high as 55Mpa, compressive strength is high to 125Mpa, Specific electrical resistance is 12-15. The gain size is as lower as 12, bulk density is high to 1.90, and the shore hardness is from 50-68, as the times of baking and impregnation are different. The key important element is that the gain size and bulk density of the isotropic graphite is same from anywhere you cutting down. However, the molded graphite you cut down from different position in one vary considerably.

From the analysis, we get the information easily that the Real Isotropic Graphite are more accurate. It has superior value for some special industries, for example, Semiconductor, Industry Furnace, Monocrystal Pulling and High Temperature Furnace etc. Choose suitable graphite material, to make a difference.

More details,click here: http://www.xrdcarbon.com/materials/iso-molded_graphite/