|Monthly Tech-Tip |
The machine is being cleaned in preparation for a porcelain run (after producing stoneware clays). The pugmill has been stripped down completely and all the casings and augers and other parts have been washed and dried separately. These must be installed (in the main chamber, the vacuum chamber and in the nose). Clean-downs like this are costly but necessary to insure a quality porcelain.
The practice of removing air from clay as it is pugged. Deaired clay has better forming properties and produces a smoother fired surface.