Process and device for producing components and semifinished products from synthetic graphite or ceramic granules, in particular for producing graphite tubes

Abstract

This invention relates to a process and a device for producing components and semi-finished products from synthetic graphite or from ceramic granules, in particular for producing graphite tubes, involving shaping of a material to be mixed preferably containing petroleum coke or graphite granules, by means of an extrusion press (22) or an extruder, wherein the process provides the following steps: a) Pre-pressing the material (20) to be mixed in static or quasi-static manner, flow movements of the material (20) to be mixed being stopped or impeded in such a way that particles previously irregularly arranged in the material to be mixed are initially aligned transversely to the direction of pressing, b) Pressing out of the pre-pressed material (20) to be mixed through an outlet opening (28) of the extrusion press (22) or the extruder in such a way that owing to adjusted flow properties of the material (20) to be mixed, the particles within the pre-compressed material (20) to be mixed realign, starting from their transverse alignment, by an angle (β) of a maximum of 75° in the direction of pressing.

Dependencies are inferred from the claim text.