公开(公告)号：US06516636B1

公开(公告)日：2003-02-11

申请号：US09601460

申请日：2000-08-02

申请人： Frank Gänsicke ,  Oliver Ganz ,  Harald Hain ,  Thomas Bogdahn ,  Oliver Humbach

发明人： Frank Gänsicke ,  Oliver Ganz ,  Harald Hain ,  Thomas Bogdahn ,  Oliver Humbach

IPC分类号： C03B37012

CPC分类号： C03B23/047

摘要： In a known method for the manufacture of a tube made of a vitreous material, especially of quartz glass, a hollow cylindrical semifinished product made of a vitreous material is carried essentially vertically to a heating zone, wherein it is heated and drawn off downwards—without the use of tools—to the tube by forming a transitional area from semifinished product to tube, while diameter and wall thickness of the tube are continuously measured, and the tube's measured geometrical data being used to generate a control signal with the aid of which a pressure difference is regulated between pressure P1 in the interior space of the semifinished product, the transitional area and the tube, as well as pressure P2 in the heating chamber which is regulated in the heating zone at least in the transitional area from semifinished product to tube and its adjacent tube area. This method is to be developed further so as to enable the processing of a broader spectrum of hollow cylindrical semifinished products to tubes with the desired inside and outside dimensions. This task is solved according to the invention such that for the manufacture of tubes with the ratio of their outside diameter (DRa) to their inside diameter (DRi) being greater than the ratio of the outside diameter (DHa) to the inside diameter (DHi) of the semifinished product—pressure P1 in the inside space of the semifinished product, the transitional area and the tube being kept at a value which is smaller than the value of pressure P2 in the heating chamber, with pressure P1 being maintained by means of a suction (vacuum) pump.

摘要翻译： 在用于制造由玻璃质材料，特别是石英玻璃制成的管的已知方法中，由玻璃质材料制成的中空圆柱形半成品基本上垂直地承载于加热区，其中它被加热并向下拉出而没有 使用工具 - 通过从半成品到管形成过渡区域，同时连续测量管的直径和壁厚，并且管的测量几何数据用于产生控制信号，借助于此， 在半成品，过渡区域和管子的内部空间中的压力P1和加热室中的至少在从半成品到管道的过渡区域中调节的加压室中的压力P2之间的压力差被调节 及其相邻管区。 该方法进一步开发，以便能够将具有期望的内部和外部尺寸的更广泛的中空圆柱形半成品加工成管。 根据本发明，可以解决这个任务，以便制造其外径（DRa）与其内径（DRi）之比大于外径（DHa）与内径（DHi）之比的管 ）在半成品的内部空间中的半成品压力P1，过渡区域和管保持在比加热室中的压力P2的值小的值，其中压力P1通过 抽吸（真空）泵。

公开(公告)号：US06715317B1

公开(公告)日：2004-04-06

申请号：US08897713

申请日：1997-07-21

申请人： Karsten Bräuer ,  Frank Gänsicke ,  Helmut Friedrich ,  Heinz Fabian

发明人： Karsten Bräuer ,  Frank Gänsicke ,  Helmut Friedrich ,  Heinz Fabian

IPC分类号： C03B23047

CPC分类号： C03B23/047 ,  C03B23/043

摘要： A glass composition to be softened is fed to a heating zone and is shaped continuously into a cylindrical component in a deformation zone, and the cross-sectional geometry of the component is determined. A feed device, a heating device, and a take-off device are provided, and a glass composition is supplied continuously by the feed device to the heating device, where it is softened, the component being formed from the softened glass composition by means of the take-off device under formation of a deformation zone. To produce a component with only slight deviations from the desired cross-sectional geometry and to provide a flexible apparatus suitable for this purpose, the glass composition is locally heated or cooled in at least one deformation area, which extends over only a part of the circumference of the deformation zone, as a function of a determined deviation of the cross-sectional geometry from a nominal geometry. Heating or cooling are provided, which act locally on at least one deformation area, which extends over only a part of the circumference of the deformation zone.

摘要翻译： 将要软化的玻璃组合物供给到加热区，并且在变形区域中连续成形为圆柱形部件，并且确定部件的横截面几何形状。 提供进料装置，加热装置和取出装置，并且通过进料装置将玻璃组合物连续供给到加热装置，在该加热装置中软化，由软化玻璃组合物形成的部件借助于 起飞装置形成一个变形区。 为了产生仅与所需横截面几何形状稍微偏离的部件，并提供适合于此目的的柔性装置，玻璃组合物在至少一个变形区域中被局部加热或冷却，该变形区域仅在圆周的一部分上延伸 的变形区域，作为横截面几何形状与标称几何形状的确定偏差的函数。 提供加热或冷却，其在至少一个仅在变形区的圆周的一部分延伸的变形区域上起作用。