Patent ID: 6455097
Filing Date: 2002-09-24
Classification: B05C,C04B,C25C

Abstract:
A method of applying a treating liquid (10) to a porous body (11) which is a pre-baked carbon component of an aluminium production cell, comprising the steps of:(a) inserting the body (11), with its part to be treated located in an upper part of a treating chamber (12); (b) applying at least one sealing member(s) (13) to the body so as to isolate a space (14) in the upper part of the treating chamber (12) around the part of the body to be treated from a lower part (15) of the treating chamber around a bottom part of the body which is not to be treated; (c) supplying treating liquid (10) to the upper part (14) of the treating chamber to cover the part of the body to be treated with the treating liquid; (d) applying a pressure differential to intake an amount of the treating liquid into pores in the part of the body to be treated; (e) removing remaining treating liquid from the upper part (14) of the treating chamber before or during step (f); and (f) freeing the body (11) from the sealing member(s) (13), and removing the treated body from the treating chamber (12).