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公开(公告)号：US09957185B2
公开(公告)日：2018-05-01
申请号：US15140031
申请日：2016-04-27
发明人： Boris Gromann , Matthias Söhn , Alexander Blumenau
IPC分类号： C03B23/08 , C03B23/045 , C03B23/053 , C03B23/07 , C03B23/043
CPC分类号： C03B23/08 , C03B23/043 , C03B23/045 , C03B23/053 , C03B23/07
摘要： A method and apparatus are provided for producing a tube of glass by zonewise heating and softening of a hollow cylinder by a movable heating zone while rotating about its rotation axis. The glass tube is continuously formed by radial expansion of the softened region under action of centrifugal force and/or internal overpressure applied in the hollow-cylinder bore. The method and apparatus make it possible to deform the hollow cylinder in a single or a small number of forming steps into a glass tube having a larger outer diameter and high dimensional accuracy by determining a circumferential position at which the wall thickness is comparatively small, and during heating and softening of the rotating hollow cylinder a coolant is dispensed from a coolant source onto the deformation zone only when or predominantly when the circumferential position having the comparatively small wall thickness passes the coolant source.
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公开(公告)号：US5112376A
公开(公告)日：1992-05-12
申请号：US780839
申请日：1991-10-23
申请人： Steffen Dietl
发明人： Steffen Dietl
IPC分类号： C03B23/043 , C03B23/07 , C03B23/08
CPC分类号： C03B23/043 , C03B23/07 , C03B23/08 , Y10S65/09
摘要： A softened section of length of a glass tube is expanded in a dimensionally accurate mold until it has assumed the dimensions of the mold, the mold being made of a material of lower thermal expansion than that of the glass, so that, after cooling, the calibrated section of tube can be released from the mold without any problems. A block of a .alpha.-o glass ceramic with a calibrated mold bore is preferably employed as the mold. It is possible for the first time to avoid a material-removing machining step, which causes damage to the glass surface, yet to be able to produce sections of the tube with a calibrated outside diameter of a dimensional accuracy which could previously be attained only by cylindrical grinding.
摘要翻译： 玻璃管的软化部分在尺寸精确的模具中膨胀，直到其具有模具的尺寸，该模具由比玻璃的热膨胀系数低的材料制成，使得在冷却之后， 管的校准部分可以从模具中释放出任何问题。 优选使用具有校准模孔的α-o玻璃陶瓷块作为模具。 可能第一次避免材料去除加工步骤，这导致对玻璃表面的损坏，但是能够以具有以前可以仅通过以下方式获得的尺寸精度的校准外径来产生管的部分 圆柱磨削。
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公开(公告)号：US3585054A
公开(公告)日：1971-06-15
申请号：US3585054D
申请日：1968-11-25
申请人： CORNING GLASS WORKS
发明人： KARSTETTER BRUCE R
CPC分类号： C03C10/0045 , C03B23/08 , C03B23/095 , C03C21/002
摘要： THIS INVENTION RELATES TO THE STRENGTHENING OF GLASSCERAMIC ARTICLES WHEREIN THE CRYSTAL CONTENT THEREOF COMPRISES THE PREDOMINANT PORTION AND HAVING CRYSTALS CONTAINING MAGNESIUM, ALUMINUM, AND SILICON IONS SELECTED FROM THE GROUP CONSISTING OF CORDIERITE, ENSTATITE, SPINEL, AND QUARTZ SOLID SOLUTIONS CONSTITUTING THE PRINCIPAL CRYSTAL PHASES. THE STRENGTHENING IS EFFECTED THROUGH AN ION EXCHANGE REACTION CARRIED OUT WITHIN A SURFACE LAYER OF THE GLASS-CERAMIC ARTICLE WHEREIN LITHIUM IONS FROM AN EXTERNAL SOURCE ARE EXCHANGED FOR MAGNESIUM IONS IN THE CRYSTAL PHASE TO CAUSE THE CRYSTALS IN THIS SURFACE LAYER TO BE TRANSFORMED TO BETA-EUCRYPTITE OR BETA-SPODUMENE, THIS TRANSFORMATION RESULTING IN THE SURFACE LAYER HAVING A LOWER COEFFICIENT OF THERMAL EXPANSION THAN THE INTERIOR PORTION OF THE ARTICLE AND THEREBY CREATING AN INTEGRAL SURFACE COMPRESSION LAYER IN THE ARTICLE.
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公开(公告)号：US3573020A
公开(公告)日：1971-03-30
申请号：US3573020D
申请日：1968-09-30
申请人： CORNING GLASS WORKS
发明人： KARSTETTER BRUCE R
CPC分类号： C03B23/08 , C03B23/095 , C03C10/0045 , C03C21/002
摘要： THIS INVENTION RELATES TO THE STRENGTHENING OF GLASSCERAMIC ARTICLES IN WHICH THE CRYSTAL CONTENT THEREOF COMPRISES THE PREDOMINANT PART OF THE ARTICLES AND CONTAINING NEPHELINE AS THE PRINCIPAL CRYSTAL PHASE. THE STRENGTHENING IS EFFECTED THROUGH THE CONVERSION OF AT LEAST PART OF THE NEPHELINE CRYSTALS IN A SURFACE LAYER OF THE ARTICLE TO LOW EXPANSION LITHIUM ALUMINO-SILICATE-TYPE CRYSTALS SUCH AS BETA-EUCRYPTITE AND BETA-SPODUMENE SOLID SOLUTION TYPE CRYSTALS, THE CONVERSION CAUSING THE SURFACE LAYER TO HAVE A LOWER COEFFICIENT OF THERMAL EXPANSION THAN THE INTERIOR PORTION OF THE ARTICLE AND THEREBY CREATING AN INTEGRAL SURFACE COMPRESSION LAYER IN THE ARTICLE. THE TRANSFORMATION OF NEPHELINE CRYSTALS TO THE BETA-EUCRYPTITE TYPE CRYSTALS IS ACCOMPLISHED THROUGH AN ION EXCHANGE REACTION TAKING PLACE WITHIN A SURFACE LAYER OF THE ARTICLE WHEREIN LITHIUM IONS FROM AN EXTERNAL SOURCE ARE EXCHANGE FOR SODIUM IONS IN THE NEPHLINE, THIS EXCHANGE ITSELF BEING UNDERTAKEN AT A HIGH TEMPERATURE OR THIS EXCHANGE BEING UNDERTAKEN AT A LOW TEMPERATURE AND BEING FOLLOWED BY A HIGH TEMPERATURE HEAT TREATMENT.
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公开(公告)号：US11920914B2
公开(公告)日：2024-03-05
申请号：US17352834
申请日：2021-06-21
申请人： Corning Incorporated
IPC分类号： G01B11/08 , C03B23/047 , C03B23/08 , G01B11/06
CPC分类号： G01B11/08 , C03B23/0476 , C03B23/08 , G01B11/06
摘要： Provided herein are measurement systems including a micrometer assembly for receiving a length of tubing, the micrometer assembly including a plurality of non-contact optical micrometers disposed around the length of tubing for measuring an outer diameter (OD) at a first plurality of positions along a circumference of the length of tubing. The measurement system may further include a displacement gauge assembly for receiving the length of tubing from the optical micrometer assembly, the displacement gauge assembly including a plurality of non-contact gauges disposed around the length of tubing for measuring a wall thickness at a second plurality of positions along the circumference of the length of tubing. A controller receives the OD measurements and thickness measurements, and determines an inner diameter and a concentricity of the length of glass tubing based on an index of refraction of the length of glass tubing, the OD measurements, and the thickness measurements.
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公开(公告)号：US20180215646A1
公开(公告)日：2018-08-02
申请号：US15936134
申请日：2018-03-26
发明人： Boris GROMANN , Matthias SÖHN , Alexander BLUMENAU
IPC分类号： C03B23/08 , C03B23/043 , C03B23/045 , C03B23/053 , C03B23/07
CPC分类号： C03B23/08 , C03B23/043 , C03B23/045 , C03B23/053 , C03B23/07
摘要： A method and apparatus are provided for producing a tube of glass by zonewise heating and softening of a hollow cylinder by a movable heating zone while rotating about its rotation axis. The glass tube is continuously formed by radial expansion of the softened region under action of centrifugal force and/or internal overpressure applied in the hollow-cylinder bore. The method and apparatus make it possible to deform the hollow cylinder in a single or a small number of forming steps into a glass tube having a larger outer diameter and high dimensional accuracy by determining a circumferential position at which the wall thickness is comparatively small, and during heating and softening of the rotating hollow cylinder a coolant is dispensed from a coolant source onto the deformation zone only when or predominantly when the circumferential position having the comparatively small wall thickness passes the coolant source.
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公开(公告)号：US20160176747A1
公开(公告)日：2016-06-23
申请号：US14974038
申请日：2015-12-18
发明人： Boris GROMANN , Nigel WHIPPEY
IPC分类号： C03B23/053 , C03B23/08 , C03B23/07
CPC分类号： C03B23/053 , B23K26/38 , B23K26/53 , B23K2101/06 , B23K2103/54 , C03B23/07 , C03B23/08
摘要： A method for forming a hollow cylinder, in a single step or in as small a number of steps as possible, into a quartz glass tube with a large outer diameter and high dimensional stability is provided. The cylinder, while rotating about a rotation axis, is softened in portions in a heating zone which is moved at a relative feed rate Va, and the softened portion is radially expanded by a centrifugal force and/or an internal overpressure applied in the hollow cylinder bore so as to form a deformation zone. The tube is continuously shaped with an outer diameter D2 which is greater than that of the hollow cylinder D1. The radial expansion of the softened portion is carried out at a location-dependent radial expansion rate Vr, the profile of which along the deformation zone has a maximum value Vr,max which is smaller than two times the feed rate Va.
摘要翻译： 提供了一种将单个步骤或尽可能少的步骤形成中空圆筒的方法，制成具有大外径和高尺寸稳定性的石英玻璃管。 圆筒在围绕旋转轴线旋转的同时在相对进给速度Va移动的加热区域中部分地软化，并且软化部分通过施加在中空圆柱体中的离心力和/或内部超压而径向膨胀 以形成变形区。 该管连续成形，其外径D2大于中空圆柱体D1的外径。 软化部分的径向膨胀以位置相关的径向膨胀速率Vr进行，其沿着变形区的轮廓具有小于进给速率Va的两倍的最大值Vr，max。
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公开(公告)号：US20050258758A1
公开(公告)日：2005-11-24
申请号：US10850620
申请日：2004-05-21
申请人： Hilary Boehme
发明人： Hilary Boehme
CPC分类号： C03B23/047 , C03B23/08 , H01J61/30 , H01J61/325
摘要： A resilient discharge lamp. The resilient discharge lamp includes a tube, electrodes, and a gas. The electrodes are disposed at opposite ends of the tube, and the gas fills the tube. The tube is of such a diameter so as to be resilient and allow the resilient discharge lamp to be bent repetitively as desired. In an alternate embodiment, the opposite ends of the tube are widened to provide more space for the electrodes. In another alternate embodiment, the tube is bent onto itself so as to form a generally U-shape.
摘要翻译： 弹性放电灯。 弹性放电灯包括管，电极和气体。 电极设置在管的相对端，气体填充管。 该管具有这样的直径以便具有弹性，并允许弹性放电灯根据需要重复弯曲。 在替代实施例中，管的相对端被加宽以为电极提供更多的空间。 在另一替代实施例中，管弯曲到自身上以形成大致U形。
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公开(公告)号：US3573075A
公开(公告)日：1971-03-30
申请号：US3573075D
申请日：1968-05-31
申请人： CORNING GLASS WORKS
发明人： KARSTETTER BRUCE R
CPC分类号： C03C10/0027 , C03B23/08 , C03B23/095 , C03C21/002
摘要： THIS INVENTION RELATES TO THE STRENGTHENING OF GLASSCERAMIC ARTICLES WHEREIN THE CRYSTAL CONTENT THEREOF COMPRISES THE PREDOMINANT PORTION AND CONTAINING THERMALLY STABLE BETA-EUCRYPTITE AS THE PRINCIPAL CRYSTAL PHASE. THE STRENGTHENING IS ACCOMPLISHED THROUGH AN ION EXCHANGE REACTION TAKING PLACE WITHIN A SURFACE LAYER OF THE GLASSCERAMIC ARTICLE WHEREIN SODIUM IONS FROM AN EXTERNAL SOURCE ARE EXCHANGED FOR LITHIUM IONS IN THE BETA-EUCRYPTITE, BUT WHEREIN THE STRUCTURAL NATURE OF THE CRYSTALS IS ES-
SENTIALLY UNCHANGED, TO CAUSE THE DEVELOPMENT OF AN INTERGRAL SURFACE COMPRESSION LAYER ON THE ARTICLE.-
公开(公告)号：US11827554B2
公开(公告)日：2023-11-28
申请号：US17338419
申请日：2021-06-03
发明人： Wolfram Acker , Richard Kiener , Vladislav Löpp
IPC分类号： C03B23/055 , C03B23/045 , C03B23/08
CPC分类号： C03B23/055 , C03B23/045 , C03B23/08
摘要： The invention relates to a method for producing glassware, in particular rotationally symmetrical glassware, such as a glass syringe, a glass carpule, a glass vial or a glass ampule, wherein the method comprises the steps of rotating a glass intermediate, in particular a glass tube, with a receptacle rotational speed about a receptacle rotational axis, rotating at least one forming roller with a roller rotational speed about a roller rotational axis, and displacing the at least one forming roller and the glass intermediate for shaping in a forming roller contact, from which the receptacle rotational axis is spaced in a radial direction about an intermediate radius and from which the roller rotational axis is spaced in a radial direction about a roller radius, wherein the ratio of the roller rotational speed to the receptacle rotational speed during the method is controlled as a function of the ratio of intermediate radius to roller radius.
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