Isostatic Graphite

  Isostatic Graphite

  Different from ordinary extrusion molding and molding, isostatic pressing graphite is formed by cold isostatic pressing technology. The raw material pressed powder is filled into a rubber mold, and the pressed powder is compacted by high-frequency electromagnetic vibration. After sealing, vacuum is performed to discharge the air between the powder particles and put into a high-pressure container with liquid medium such as water or oil. Pressurized to 100-200 MPa, and pressed into cylindrical or rectangular products.

    According to Pascal's principle, the pressure is added to the rubber mold through a liquid medium such as water, and the pressure in all directions is equal. In this way, the compressed powder particles are not oriented in the filling direction in the mold, but are compressed in an irregular arrangement. Therefore, although graphite is anisotropic in crystallographic properties, as a whole, isostatically pressed graphite But it is isotropic. In addition to cylinders and rectangles, the formed products also have shapes such as cylinders and crucibles.