Fremgangsmåde og apparat til påføring af en væskebelægning i en bikagestruktur

摘要

A liquid coating method for coating a liquid to inner cells of a honeycomb structure includes the steps of supplying a liquid to an inside of a honeycomb structure vertically arranged from its lower part to cause the liquid to adhere to the inner cells therein, and supplying pressurized air to an upper part of the honeycomb structure to discharge the liquid within the inner walls. A holding apparatus for holding an article includes an outer cylinder in a form of a pipe having an inner wall with an inner diameter which allows an article to be held to pass therethrough easily and has a sufficient strength, a resilient tube having an inner diameter which prevents the article to be held from passing therethough under non tension and having ends each sealingly connected to the outer cylinder, thus defining together with the inner wall of the outer cylider sealed space therebetween, means for discharging a fluid from the sealed space; and means for supplying the fluid to the sealed space.