公开(公告)号：US09957185B2

公开(公告)日：2018-05-01

申请号：US15140031

申请日：2016-04-27

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Boris Gromann ,  Matthias Söhn ,  Alexander Blumenau

IPC: C03B23/08 ,  C03B23/045 ,  C03B23/053 ,  C03B23/07 ,  C03B23/043

CPC classification number: C03B23/08 ,  C03B23/043 ,  C03B23/045 ,  C03B23/053 ,  C03B23/07

Abstract: 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.

公开(公告)号：US20160318789A1

公开(公告)日：2016-11-03

申请号：US15140031

申请日：2016-04-27

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Boris GROMANN ,  Matthias SÖHN ,  Alexander BLUMENAU

IPC: C03B23/08 ,  C03B23/07 ,  C03B23/043 ,  C03B23/053

CPC classification number: C03B23/08 ,  C03B23/043 ,  C03B23/045 ,  C03B23/053 ,  C03B23/07

Abstract: 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.

Abstract translation: 提供了一种方法和装置，用于通过在围绕其旋转轴线旋转的同时通过可移动加热区域的中空圆柱体的加热和软化来制造玻璃管。 玻璃管在离心力作用下和/或内部超压施加在中空缸孔中的作用下，通过软化区的径向膨胀连续地形成。 该方法和装置使得可以通过确定壁厚相对较小的圆周位置，将单个或少数成形步骤中的中空圆筒变形为具有较大外径和高尺寸精度的玻璃管，以及 在旋转的中空圆柱体的加热和软化期间，只有当主要是具有较小壁厚的周向位置通过冷却剂源时，冷却剂才从冷却剂源分配到变形区上。

公开(公告)号：US20160168005A1

公开(公告)日：2016-06-16

申请号：US14904308

申请日：2014-07-08

Applicant: HERAEUS QUARZGLAS GMBH & CO. KG

Inventor： Boris GROMANN ,  Burtchard OBERLE ,  Christian SCHENK ,  Gero FISCHER ,  Pèlagie DECLERCK ,  Bemhard FRANZ ,  Ulrich LEIN ,  Alexander LAAZ ,  Achim HOFMANN

IPC: C03B23/053 ,  C03B23/08 ,  C03B23/043 ,  C03B23/07

CPC classification number: C03B23/053 ,  C03B19/14 ,  C03B23/043 ,  C03B23/045 ,  C03B23/07 ,  C03B23/08 ,  C03B2201/04 ,  C03C3/06 ,  C03C2203/44

Abstract: A method for producing a large quartz-glass pipe is provided. In a first forming step, an intermediate cylinder made of quartz glass and having an intermediate-cylinder wall thickness and outside diameter is formed by using a forming tool and is then cooled. In a second shaping step, at least one length segment of the cooled intermediate cylinder is fed to a heating zone, heated to a softening temperature zone by zone therein, and, while rotating about the longitudinal axis of the intermediate cylinder, shaped into the large quartz-glass pipe having a final wall thickness and outside diameter. The quartz glass is synthetically produced and has an average hydroxyl group content of 10 ppm by weight or less. If the intermediate cylinder is divided into length segments of 1 cm, adjacent length segments have a difference of less than 2 ppm by weight in the average hydroxyl group content thereof.

Abstract translation: 提供一种生产大型石英玻璃管的方法。 在第一成形步骤中，通过使用成形工具形成由石英玻璃制成并具有中间筒壁厚和外径的中间圆筒，然后冷却。 在第二成形步骤中，冷却的中间圆筒的至少一个长度段被供给到加热区，通过其中的区域被加热到软化温度区域，并且围绕中间圆柱体的纵向轴线旋转，成形为大的 具有最终壁厚和外径的石英玻璃管。 合成生产石英玻璃，其平均羟基含量为10重量ppm以下。 如果中间圆筒被分成1cm的长度段，则相邻长度段的平均羟基含量的差异小于2ppm。

公开(公告)号：US10544056B2

公开(公告)日：2020-01-28

申请号：US15936134

申请日：2018-03-26

Applicant: Heraeus Quarzglas Gmbh & Co. KG

Inventor： Boris Gromann ,  Matthias Söhn ,  Alexander Blumenau

IPC: C03B23/08 ,  C03B23/04 ,  C03B23/045 ,  C03B23/053 ,  C03B23/07 ,  C03B23/043

Abstract: 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.

公开(公告)号：US09725352B2

公开(公告)日：2017-08-08

申请号：US14974038

申请日：2015-12-18

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Boris Gromann ,  Nigel Whippey

IPC: C03B23/053 ,  C03B23/07 ,  C03B23/08

CPC classification number: C03B23/053 ,  B23K26/38 ,  B23K26/53 ,  B23K2101/06 ,  B23K2103/54 ,  C03B23/07 ,  C03B23/08

Abstract: 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.

公开(公告)号：US09725351B2

公开(公告)日：2017-08-08

申请号：US14409852

申请日：2013-12-23

Applicant: Heraeus Quartz America LLC

Inventor： Matthew J. Donelon ,  Arno Pitzen

IPC: C03B23/00 ,  C03B23/053 ,  C03B19/06 ,  C03B23/047 ,  C03B23/07

CPC classification number: C03B23/053 ,  C03B19/066 ,  C03B23/00 ,  C03B23/047 ,  C03B23/07

Abstract: A method of forming an opaque quartz glass component is provided. The method includes (a) providing a starting preform made of quartz glass; (b) heating at least a portion of the starting preform to a predetermined temperature at which the quartz glass of the starting preform has a viscosity in a range of 10E2 to 10E12 poise; and (c) deforming at least a portion of the heated preform at the predetermined temperature to change a shape and/or dimension(s) of the heated perform in order to form the opaque quartz glass component. The starting preform and the heated preform have respective densities of at least 2.15 g/cm3 and at least 2.10 g/cm3. The starting perform and the opaque quartz glass component have respective direct spectral transmissions of approximately 0.1-1% and 0.2-3% in the wavelength range of λ=190 nm to λ=4990 nm at a wall thickness of 3 mm and a diffuse reflectance of at least 60% in a wavelength range of λ=190 nm to λ=2500 nm.

公开(公告)号：US20180215646A1

公开(公告)日：2018-08-02

申请号：US15936134

申请日：2018-03-26

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Boris GROMANN ,  Matthias SÖHN ,  Alexander BLUMENAU

IPC: C03B23/08 ,  C03B23/043 ,  C03B23/045 ,  C03B23/053 ,  C03B23/07

CPC classification number: C03B23/08 ,  C03B23/043 ,  C03B23/045 ,  C03B23/053 ,  C03B23/07

Abstract: 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.

公开(公告)号：US20160280577A1

公开(公告)日：2016-09-29

申请号：US14409852

申请日：2013-12-23

Applicant: HERAEUS QUARTZ AMERICA LLC

Inventor： Matthew J. DONELON ,  Arno PITZEN

IPC: C03B23/053 ,  C03B23/047 ,  C03B23/07 ,  C03B19/06

CPC classification number: C03B23/053 ,  C03B19/066 ,  C03B23/00 ,  C03B23/047 ,  C03B23/07

Abstract: A method of forming an opaque quartz glass component is provided. The method includes (a) providing a starting preform made of quartz glass; (b) heating at least a portion of the starting preform to a predetermined temperature at which the quartz glass of the starting preform has a viscosity in a range of 10E2 to 10E12 poise; and (c) deforming at least a portion of the heated preform at the predetermined temperature to change a shape and/or dimension(s) of the heated perform in order to form the opaque quartz glass component. The starting preform and the heated preform have respective densities of at least 2.15 g/cm3 and at least 2.10 g/cm3. The starting perform and the opaque quartz glass component have respective direct spectral transmissions of approximately 0.1-1% and 0.2-3% in the wavelength range of λ=190 nm to λ=4990 nm at a wall thickness of 3 mm and a diffuse reflectance of at least 60% in a wavelength range of λ=190 nm to λ=2500 nm.

Abstract translation: 提供了形成不透明石英玻璃部件的方法。 该方法包括（a）提供由石英玻璃制成的起始预制件; （b）将起始预型件的至少一部分加热到预定温度，在预定温度下，起始预型件的石英玻璃的粘度在10E2至10E12泊的范围内; 和（c）使加热的预制件的至少一部分在预定温度下变形，以改变加热的表面的形状和/或尺寸，以便形成不透明的石英玻璃组分。 起始预成型件和加热的预制件具有至少2.15g / cm 3和至少2.10g / cm 3的相应密度。 起始性能和不透明石英玻璃组分在λ= 190nm至λ= 4990nm的波长范围内在壁厚为3mm的情况下分别具有约0.1-1％和0.2-3％的直接光谱透射率，漫反射率 在λ= 190nm至λ= 2500nm的波长范围内至少为60％。

公开(公告)号：US20160176747A1

公开(公告)日：2016-06-23

申请号：US14974038

申请日：2015-12-18

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Boris GROMANN ,  Nigel WHIPPEY

IPC: C03B23/053 ,  C03B23/08 ,  C03B23/07

CPC classification number: C03B23/053 ,  B23K26/38 ,  B23K26/53 ,  B23K2101/06 ,  B23K2103/54 ,  C03B23/07 ,  C03B23/08

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4050601A

公开(公告)日：1977-09-27

申请号：US714741

申请日：1976-08-16

Applicant: Johan J. H. Bogaard ,  Gerrit-Jan Korteling

Inventor： Johan J. H. Bogaard ,  Gerrit-Jan Korteling

IPC: H01J9/24 ,  C03B23/043 ,  C03B23/049 ,  C03B23/053 ,  H01J9/26 ,  C03B23/08

CPC classification number: C03B23/049 ,  C03B23/0493 ,  C03B23/053

Abstract: An envelope for an oscilloscope tube is formed by simultaneously rotating and heating a glass tube and upsetting the heated tube, to form a cylindrical section having uniform thickness and varying diameter. The thus formed envelope portion is then pressed into a shape having a rectangular cross-section, without changing the circumference, in order to maintain the thickness of the envelope.

Abstract translation: 通过同时旋转和加热玻璃管并使加热的管镦锻，形成示波器管的信封，形成具有均匀厚度和变化直径的圆柱形部分。 然后将如此形成的包络部分压入具有矩形横截面的形状，而不改变圆周，以便保持外壳的厚度。