摘要:
The present invention relates to a nickel-based self-fluxing alloy, a glass manufacturing member, a mold, and a glass gob transporting member having an improved slipperiness against a glass gob. A nickel-based self-fluxing alloy used in a glass manufacturing member for transporting or molding glass with a viscosity of logη = 3 to 14.6, comprises: boron (B) in an amount of ranging from 0 percent to 1.5 percent by mass; hard particles; and silicon (Si). Preferably, the amount of boron (B) ranges from 0 percent to less than 1.0 percent by mass. Preferably, the hard particles contain at least one of a carbide, a nitrides, an oxide and a cermet. Preferably, the nickel-based self-fluxing alloy comprises at least one metal selected from Group 4, 5 and 6 elements in an amount of ranging from 0 percent to 30 percent by mass.
摘要:
An article of glassware, particularly a glass container, of increased strength is made by a process in which the parison is treated in a manner which will cause the glass in the outer surface layer of the formed glassware article to be in a state of compression. Preferably a glaze having a coefficient of thermal expansion lower than the coefficient of thermal expansion of the glass of the parison is applied to the outer surface of the parison. Advantageously, the glaze is applied to the parison by a flame spray method or by dipping the parison into a fluidised bed containing powdered glaze. As an alternative, the glaze applied to the outer surface of the parison may be capable of being at least partially crystallised, after the glassware article has been formed from the parison, to produce an outer surface of the glassware article having a lower coefficient of thermal expansion than the base glass of the glassware article. Alternatively to the application of a glaze, glass in the outer surface of the parison may be chemically changed so that the surface glass in the parison has a higher transformation temperature than the remainder of the glass in the parison. Additionally, the interior surface of the parison may be treated by a material producing active gases so that a compressive layer is produced on the internal surface of the final glassware article, at least partially balancing the compressive layer in the outer surface of the glassware article.
摘要:
The present invention relates to an apparatus for blow-molding a glass bottle, and more particularly, to an apparatus for blow-molding a glass bottle in which molding air is injected into a pair of mold bodies such that molten glass accommodated in the mold bodies is formed into a glass bottle and a groove is formed at the center of the inner side of the bottom surface of the glass bottle. The apparatus for blow-molding a glass bottle of the present invention uses a blow mold (10) configured to include: a pair of mold bodies (11) forming a tubular body; a base mold (12) which molds the bottom surface of the glass bottle; and a blowing head (13) which are arranged in the upper portions of the mold bodies (11) and into which molding air is injected such that the glass bottle is expanded after primary molding and closely contacts the inner walls of the mold bodies (11) and the base mold (12). A groove molder (20) is provided on the inner circumferential edge portion of the blowing head (13) such that a groove portion (15) can be molded on the inner side of the bottom surface of the glass bottle (14).
摘要:
Ein Trichtermechanismus einer Glasmaschine, mittels dem nach dem Einbringen von Glastropfen in Vorformen der Glasmaschine ein Wegstellen bzw. Wegschwenken eines Trichters der Glasmaschine von den Vorformen und zum Einbringen der Glastropfen in die Vorformen ein Hinstellen bzw. Hinschwenken des Trichters zu den Vorformen realisierbar ist, hat einen Druckluftzylinderantrieb (3), mittels dessen Kolben (6) der Trichter verstell- bzw. verschwenkbar ist, und dessen Vorschubraum (19) und dessen Rückzugraum (27) über eine erste (16) bzw. eine zweite Ventileinrichtung (24) an eine Druckluftquelle (20, 28) anschließbar sind. Um bei Beibehaltung des pneumatischen Antriebsprinzips dauerhaft eine zuverlässigere und exaktere Steuerung bzw. Regelung der Kolbenbewegung im Druckluftzylinderantrieb und damit der Verstell- bzw. Verschwenkbewegung des Trichtermechanismus zu ermöglichen, wird vorgeschlagen, dass die zweite Ventileinrichtung (24), mittels der der Rückzugraum (27) des Druckluftzylinderantriebs (3) an die Druckluftquelle (28) anschließbar ist, als Proportionalventil (24) ausgebildet ist, dessen Durchflussquerschnitt mittels einer Steuereinheit (12) entsprechend dem Ergebnis eines auf die Kolbenbewegung im Druckluftzylinder (4) bezogenen Soll-Wert/Ist-Wert-Vergleichs regelbar ist.