A method and apparatus for making nipple holes in carbon bodies, typically anodes for use in electrolytic cells in the production of aluminium, by cutter rotating about axis

摘要

A method for the formation of holes in carbon bodies, in particular nipple holes in anodes for use in electrolytic cells for the production of aluminium, is claimed. The hole(s) is(are) formed after the forming and calcination of the carbon body and the hole is formed by means of one or more first cutting elements which rotate about an axis. Equipment typically consists of positioning device 9 and a processing station with a spindle 10 having one or more cutting elements (not shown).