264 / | HD | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
603 | DF | OUTSIDE OF MOLD SINTERING OR VITRIFYING OF SHAPED INORGANIC ARTICLE OR PREFORM {30} |
653 | DF | .~ Including plural heating steps {3} |
654 | .~.~ Including diverse heating of article prior to outside-mold sintering or vitrifying {5} | |
655 | DF | .~.~.~> With article cutting, punching, or grinding |
656 | DF | .~.~.~> Including nonsintering burn-off, volatilization, or melting of binder {1} |
658 | DF | .~.~.~> Including reaction of precursor to form new inorganic compound or composition {1} |
660 | DF | .~.~.~> With drying of shaped article or preform using nonsintering heat |
661 | DF | .~.~.~> With drying, calcining, or sintering of non-shaped particulate |