摘要:
A process for preparing a glass container that includes: providing a glass tube with a first portion, a second portion, and a longitudinal axis (Ltube); holding the first portion in a first clamping chuck and the second portion in a second clamping chuck; rotating the glass tube around the longitudinal axis (Ltube); heating, via a heater, the glass tube above a glass transition temperature; separating the first and second portions from one another by pulling apart along the longitudinal axis (Ltube) while the heated glass tube is still rotating by moving the first and the second chucks away from each other; and moving the heater, while moving the first and second chucks away from each other, so that the heater follows a mass that remains at a circular end region of the first and/or second portion.
摘要:
A process for preparing a glass container that includes: providing a glass tube with a first portion, a second portion, and a longitudinal axis (Ltube); holding the first portion in a first clamping chuck and the second portion in a second clamping chuck; rotating the glass tube around the longitudinal axis (Ltube); heating, via a heater, the glass tube above a glass transition temperature; separating the first and second portions from one another by pulling apart along the longitudinal axis (Ltube) while the heated glass tube is still rotating by moving the first and the second chucks away from each other; and moving the heater, while moving the first and second chucks away from each other, so that the heater follows a mass that remains at a circular end region of the first and/or second portion.
摘要:
In a method for producing glass bottles having a flat base and an opposite filling opening, the base of the glass bottles is further formed at a plurality of processing positions. During the entire further forming of the base, with the aid of a purge gas which by way of the filling opening of the glass bottle flows in or out in a centric manner and flows out or in in an eccentric manner, a purge gas flow is generated in the interior of the glass bottle in order for delamination effects to be reduced. A tube or a nozzle serves for blowing in or suctioning out the purge gas. Various geometries and arrangements of the tube or of the nozzle are disclosed. A multiplicity of geometric constellations of the tube diameters and various mass flow settings are disclosed.
摘要:
A bottom machine is provided for a glass processing device to manufacture glass containers from glass tubes. The bottom machine includes one or a plurality of holding units for holding the glass container or glass tube, with the holding units being mounted so as to rotate around an axis of rotation of the bottom machine in order to convey the glass container or glass tube to various processing positions, a pressure source for supplying a gas flow, a duct system communicating with the pressure source for directing the gas flow to the holding units and for feeding the gas flow into the glass tube or into the glass container, with the duct system being designed to be free of gaps.
摘要:
A method for thermally treating an annular region of an inner surface of a glass container produced from a borosilicate glass tube is provided. The annular region is disposed at a tubular portion of the glass container and is disposed adjacent to a glass container bottom. The method includes: forming the glass container bottom from the glass tube; heating the annular region of the inner surface of the tubular portion to a treatment temperature TBeh above the transformation temperature TG, wherein the annular region is adjacent to the glass container bottom; maintaining the treatment temperature TBeh for a certain time period; and cooling the glass container to room temperature.
摘要:
A glass vial includes a base including a boron-containing multicomponent glass and a vial opening and holds a liquid active pharmaceutical ingredient formulation. The glass vial has a total volume of
摘要:
A bottom machine is provided for a glass processing device to manufacture glass containers from glass tubes. The bottom machine includes one or a plurality of holding units for holding the glass container or glass tube, with the holding units being mounted so as to rotate around an axis of rotation of the bottom machine in order to convey the glass container or glass tube to various processing positions, a pressure source for supplying a gas flow, a duct system communicating with the pressure source for directing the gas flow to the holding units and for feeding the gas flow into the glass tube or into the glass container, with the duct system being designed to be free of gaps.
摘要:
A bottom machine is provided for a glass processing device to manufacture glass containers from glass tubes. The bottom machine includes one or a plurality of holding units for holding the glass container or glass tube, with the holding units being mounted so as to rotate around an axis of rotation of the bottom machine in order to convey the glass container or glass tube to various processing positions, a pressure source for supplying a gas flow, a duct system communicating with the pressure source for directing the gas flow to the holding units and for feeding the gas flow into the glass tube or into the glass container, with the duct system being designed to be free of gaps.
摘要:
A glass container is provided that includes a tube, a circular bottom, and a longitudinal axis. A curved glass heel extends from an outer end the bottom to the first end of the tube. The outer surface has a topography defined by a function ĥ(x) that is an azimuthal average of a distance between a contact plane and the outer surface at any given position located on a circle having the centre and the radius |x|. The values ĥ for ĥ(x) are determined for a plurality of circles the radius of which increases stepwise by 500 μm starting with a circle around the centre having a radius of 500 μm. The values ĥ are determined in a range from x=−0.4×d2/2 to x=+0.4×d2/2, d2 having a size such that at least 4 values ĥ are determined and can be fitted with a curvature function h ^ ( x ) = - c × x 2 1 + 1 - c 2 × x 2 + h 0 .
摘要:
A method for thermally treating an annular region of an inner surface of a glass container produced from a borosilicate glass tube is provided. The annular region is disposed at a tubular portion of the glass container and is disposed adjacent to a glass container bottom. The method includes: forming the glass container bottom from the glass tube; heating the annular region of the inner surface of the tubular portion to a treatment temperature TBeh above the transformation temperature TG, wherein the annular region is adjacent to the glass container bottom; maintaining the treatment temperature TBeh for a certain time period; and cooling the glass container to room temperature.