DEVICE FOR EXTRUSION OF POLYMER AND GRAPHITE COMPOSITION Russian patent published in 2016 - IPC B29C47/30 B29C47/54 B29C67/02 

FIELD: technological processes.

SUBSTANCE: invention relates to making articles by extrusion. Device for extrusion of polymer and graphite composition comprises a hollow cylindrical case, in which there is a cylindrical hollow female mould with cylindrical male former in it. Case is made from the upper part as a U-shaped cavity and the lower working part. Height of the case working part, the number, diameter of throughout holes and distance between the holes are adjusted depending on the specified value of electric conductivity of extruded articles. Male former is made as a H-beam with variable cross-section, its upper horizontal part is made as a circular thrust limiting the former movement in the mould with a diameter exceeding the one of the female mould, and the lower horizontal part is made detachable in two versions: as a circular support with a diameter equal to the one of the female mould cavity, or as the same circular support with rods arranged in its lower part, coaxial to the throughout holes and able to enter the holes.

EFFECT: higher efficiency for making articles with electro-conductive properties from polymer and graphite containing composition.

1 cl, 8 dwg