公开(公告)号：US06548131B1

公开(公告)日：2003-04-15

申请号：US09547845

申请日：2000-04-12

申请人： Heinz Fabian ,  Martin Arndt ,  Johann Leist ,  Udo Gertig ,  Wolfgang Englisch

发明人： Heinz Fabian ,  Martin Arndt ,  Johann Leist ,  Udo Gertig ,  Wolfgang Englisch

IPC分类号： B32B108

CPC分类号： C30B35/002 ,  C03B19/095 ,  C03B23/0013 ,  C03B23/004 ,  C03C15/00 ,  C03C19/00 ,  C30B15/10 ,  Y10T428/13 ,  Y10T428/131 ,  Y10T428/2457 ,  Y10T428/2495 ,  Y10T428/249969 ,  Y10T428/249988 ,  Y10T428/24999

摘要： To facilitate the start of a process using a quartz glass crucible with a crucible body and an inner layer of quartz glass a quartz glass crucible is provided with an inner surface roughened at least in the starting zone region by multiple depressions disposed at a maximum distance of 5 mm from one another. Furthermore, a simple and inexpensive process for the manufacture of such a quartz glass crucible is described, by providing a crucible body with a smooth inner surface of quartz glass and subsequently roughening the inner layer in the starting zone region by multiple depressions disposed at a maximum of 5 mm from one another.

摘要翻译： 为了方便开始使用具有坩埚主体和石英玻璃的内层的石英玻璃坩埚的工艺，石英玻璃坩埚具有至少在起始区域中粗糙化的内表面，该内表面被设置在最大距离处的多个凹陷 距离彼此5毫米。 此外，通过提供具有石英玻璃的光滑内表面的坩埚主体，并且随后通过设置在最大的多个凹陷在起始区域中粗糙化内层，描述了用于制造这种石英玻璃坩埚的简单和便宜的方法 相距5毫米。

公开(公告)号：US06380110B1

公开(公告)日：2002-04-30

申请号：US09484113

申请日：2000-01-14

申请人： Waltraud Werdecker ,  Heinz Fabian ,  Udo Gertig ,  Johann Leist ,  Rolf Göbel

发明人： Waltraud Werdecker ,  Heinz Fabian ,  Udo Gertig ,  Johann Leist ,  Rolf Göbel

IPC分类号： C03B2000

CPC分类号： C03C1/026 ,  C03B19/1065 ,  C03C3/06 ,  C03C2201/02 ,  C03C2201/24 ,  C03C2201/26 ,  C03C2201/32 ,  C03C2201/80 ,  C03C2203/10 ,  C03C2203/54

摘要： In a known process for the production of opaque quartz glass a blank is formed from synthetic SiO2 granulate and is heated at a vitrification temperature to form a body of opaque quartz glass. In order to provide on this basis a process for the production of pure opaque quartz glass with a homogenous pore distribution, high density, high viscosity and a low tendency to devitrify, it is proposed according to the invention that the SiO2 granulate to be used is a SiO2 granulate (21; 31) composed of at least partially porous agglomerates of SiO2 primary particles, with a specific BET surface ranging from 1.5 m2/g to 40 m2/g and an apparent density of at least 0.8 g/cm3. A SiO2 granulate (21; 31) suitable for the implementation of the process is distinguished in that it is formed from at least partially porous agglomerates of SiO2 primary particles and in that it has a specific BET surface ranging from 1.5 m2/g to 40 m2/g and an apparent density of at least 0.6 g/cm3.

摘要翻译： 在制造不透明石英玻璃的已知方法中，由合成SiO 2颗粒形成坯料，并在玻璃化温度下加热以形成不透明石英玻璃体。 为了在此基础上提供具有均匀孔分布，高密度，高粘度和低失透倾向的纯不透明石英玻璃的制备方法，根据本发明提出使用的SiO 2颗粒是 SiO 2颗粒（21; 31），其由SiO 2一次颗粒的至少部分多孔的附聚物组成，BET比表面积为1.5m 2 / g至40m 2 / g，表观密度为至少0.8g / cm 3。 适用于实施该方法的SiO 2颗粒（21; 31）的特征在于其由SiO 2一次颗粒的至少部分多孔的附聚物形成，并且其具有范围为1.5m 2 / g至40m 2的比BET表面积 / g，表观密度为0.6g / cm 3以上。

公开(公告)号：US06684664B2

公开(公告)日：2004-02-03

申请号：US09839795

申请日：2001-04-20

申请人： Waltraud Werdecker ,  Udo Gertig ,  Johann Leist ,  Helmut Leber

发明人： Waltraud Werdecker ,  Udo Gertig ,  Johann Leist ,  Helmut Leber

IPC分类号： C03B1909

CPC分类号： C03C3/06 ,  C03B19/09 ,  C03B19/095 ,  C03B23/047 ,  C03B23/0496 ,  C03C11/00 ,  C03C2201/32 ,  C03C2201/50 ,  C03C2201/80 ,  C03C2204/06 ,  Y10T428/131 ,  Y10T428/1317 ,  Y10T428/139 ,  Y10T428/1393

摘要： A process for manufacture of a component made of opaque synthetic quartz glass, and a quartz glass tube manufactured according to said process. The process comprises (i) providing a starting material in the form of granulated material of highly pure, synthetic SiO2 comprising at least partially porous agglomerates of SiO2 primary particles, the granulated material having a compacted bulk density of no less than 0.8 g/cm3, (ii) filling the granulated material into a mold and converting it to an opaque quartz glass preform through a process of melting, and (iii) reshaping the preform in a heat reshaping process to obtain a component made of opaque quartz glass. A quartz glass tube is made of quartz glass consisting of a granulated material of synthetic SiO2 with a lithium content of no more than 100 wt-ppb, and the wall thickness of said component being in the range of 0.5 mm to 15 mm.

摘要翻译： 一种制造由不透明的合成石英玻璃制成的部件的方法，以及根据所述方法制造的石英玻璃管。 该方法包括（i）提供高纯度合成SiO 2的造粒材料形式的起始材料，其包含SiO 2一次颗粒的至少部分多孔附聚物，所述造粒材料的压实堆积密度不小于0.8g / 3），（ii）将造粒材料填充到模具中并通过熔融过程将其转化为不透明的石英玻璃预制件，和（iii）在热成型工艺中重新成形预成型件以获得由不透明石英玻璃制成的部件。 石英玻璃管由石英玻璃制成，石英玻璃由合成SiO 2的粒状材料组成，锂含量不超过100wt-ppb，所述组分的壁厚在0.5mm至15mm的范围内。

公开(公告)号：US06660671B2

公开(公告)日：2003-12-09

申请号：US10103660

申请日：2002-03-21

申请人： Waltraud Werdecker ,  Udo Gertig ,  Johann Leist ,  Rainer Koeppler

发明人： Waltraud Werdecker ,  Udo Gertig ,  Johann Leist ,  Rainer Koeppler

IPC分类号： C03C100

CPC分类号： C04B35/653 ,  C03B19/06 ,  C03B19/066 ,  C03B19/12 ,  C03B20/00 ,  C03C3/06 ,  C03C14/004 ,  C03C2201/02 ,  C04B35/14 ,  Y10S977/775 ,  Y10S977/776 ,  Y10S977/90

摘要： Composite material with high resistance to temperature changes and a high density, and having an SiO2-containing matrix with quartz glass grains embedded therein is produced by preparing a suspension from a particle mixture of finely divided SiO2 powder having at least two different particle fractions and of the quartz glass grains, forming a green compact and sintering the compact. The matrix has an SiO2 content of at least 99% by wt. and is formed from at least first and second particle fractions, each of which is present as granules of nanoscale, amorphous, synthetically produced SiO2 primary particles having a mean primary particle size of less than 100 nm. The composite material has an SiO2-containing matrix with an SiO2 content of at least 99% by wt. It is particularly suited for applications such as starting material for producing a permanent mold for melting solar silicon.

摘要翻译： 通过从具有至少两种不同颗粒级分的细分SiO 2粉末和具有至少两种不同颗粒级分的颗粒混合物制备悬浮液，制备具有高耐温变化和高密度的复合材料，并且具有嵌入石英玻璃颗粒的含SiO 2基质 石英玻璃颗粒，形成一个生坯并烧结成型。 该基质具有至少99重量％的SiO 2含量。 并且由至少第一和第二颗粒组分形成，每个颗粒级分以纳米级，无定形，合成产生的平均一次粒径小于100nm的SiO 2一次颗粒的颗粒形式存在。 复合材料具有SiO 2含量至少为99重量％的含SiO 2的基体。 特别适合用于制造用于熔化太阳能硅的永久模具的起始材料。

公开(公告)号：US06755049B2

公开(公告)日：2004-06-29

申请号：US09902473

申请日：2001-07-10

申请人： Gabriele Korus ,  Hilmar Laudahn ,  Martin Arndt ,  Udo Gertig

发明人： Gabriele Korus ,  Hilmar Laudahn ,  Martin Arndt ,  Udo Gertig

IPC分类号： C03B1909

CPC分类号： C30B15/10 ,  C03B19/095 ,  C03C10/0009

摘要： Known is a method of producing a quartz glass crucible in which a crucible base body is provided at least in part with an inner layer in which the formation of cristobalite is induced by using a crystallization promoter. On the basis thereof, in order to provide an inexpensive method of producing a quartz glass crucible with reproducible characteristics for long service lives, it is suggested according to the invention that the crystallization promoter and a reducing substance are introduced into the inner layer.

摘要翻译： 已知的是制造石英玻璃坩埚的方法，其中坩埚基体至少部分地具有通过使用结晶促进剂诱导方英石形成的内层。 在此基础上，为了提供一种生产具有可重复使用寿命长的石英玻璃坩埚的廉价方法，根据本发明，建议将结晶促进剂和还原物质引入内层。