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1. 发明专利

DE102006019646B4 Verfahren zum Herstellen von Formteilen und rotationssymmetrischer Formkörper 未知
公开(公告)号：DE102006019646B4
公开(公告)日：2012-01-19
申请号：DE102006019646
申请日：2006-04-25
申请人： SCHOTT AG
发明人： SCHMITT STEFAN , KARNEHM ANSGAR , KARBACH FRITHJOF , MEROLLA STEFANO , STAUDER MATHIAS , SKIBA PETER-FRANZ
IPC分类号： C03B5/43 , C03B5/14 , C03B5/42 , C04B35/16 , C04B35/482
摘要： Verfahren zum Herstellen von Formteilen (1) für den Einsatz im Kontakt mit einer Glasschmelze, dadurch gekennzeichnet, daß ein fließfähiger Grundstoff (6) für einen keramischen Werkstoff, welcher für den Einsatz im Kontakt mit einer Glasschmelze (4) geeignet ist, in eine rotationssymmetrische Form (5) gegossen wird und sich in der Form (5) zu einem rotationssymmetrischen Körper (1) verfestigt, während die Form (5) mit einer definierten Drehzahl n rotiert, wobei die Form eine abgestufte Kontur aufweist, die der Innenfläche des rotationssymmetrischen Körpers (1) angenähert ist, wobei der rotationssymmetrische Hohlkörper (1) zur Verwendung als drehbare Vorrichtung (2) oder in einer drehbaren Vorrichtung (2) zum Herstellen einer Schmelze (4), insbesondere zum Einschmelzen und/oder Läutern von Glas, vorgesehen ist, welche im Betrieb mit einer Betriebsdrehzahl nmelt rotiert, und die Drehzahl n bei der Herstellung derart definiert wird, daß sie im wesentlichen der Betriebsdrehzahl nmelt entspricht.

2. 发明专利

DE102004056934A1 Use of a glass or a glass-ceramic as a material in the manufacture of weather-resistant volume components used for producing monuments, plaques and gravestones 未知
公开(公告)号：DE102004056934A1
公开(公告)日：2006-05-24
申请号：DE102004056934
申请日：2004-11-22
申请人： SCHOTT AG
发明人： DOEHRING THORSTEN , DOERING ECKART , REITER RALF , KARNEHM ANSGAR , WITTMER VOLKER
IPC分类号： C03C4/00 , E04H13/00
摘要： Use of a glass or a glass-ceramic as a material in the manufacture of weather-resistant volume components used for producing monuments, plaques and gravestones is new. The material has a thermal expansion coefficient of not more than 6 x 10->6>/K, preferably not more than 4.3 x 10->6>/K, especially not more than 2.1 x 10->6>/K at -30 to +70[deg] C. An independent claim is also included for a process for the production of weather-resistant volume components used for producing monuments, plaques and gravestones.

3. 发明专利

DE102006019647B4 未知
公开(公告)号：DE102006019647B4
公开(公告)日：2010-03-04
申请号：DE102006019647
申请日：2006-04-25
申请人： SCHOTT AG
发明人： SCHMITT STEFAN , KARNEHM ANSGAR , KARBACH FRITHJOF , KIEFER WERNER , LENTES FANK-THOMAS , LOCH HORST , SKIBA PETER-FRANZ , STAUDER MATHIAS
IPC分类号： C03B5/14 , C03B5/42 , C03B5/43

4. 发明专利

DE102006019647A1 Procedure for dimensioning a rotating device for the fusion and/or refinement of glass, comprises determining a correlation between the quality of the glass and the residence time at a given temperature by determining a reaction rate 未知
公开(公告)号：DE102006019647A1
公开(公告)日：2007-11-15
申请号：DE102006019647
申请日：2006-04-25
申请人： SCHOTT AG
发明人： SCHMITT STEFAN , KARNEHM ANSGAR , KARBACH FRITHJOF , KIEFER WERNER , LENTES FANK-THOMAS , LOCH HORST , SKIBA PETER-FRANZ , STAUDER MATHIAS
IPC分类号： C03B5/14 , C03B5/42 , C03B5/43
摘要： The procedure for dimensioning a rotating device (2) for the fusion and/or refinement of glass, comprises determining a correlation between the quality Q of the glass and the residence time t at a given temperature T by determining a reaction rate k(T), specifying a target quality Q m i n (A m i n ; c g a s ) of the glass after the traversing of the glass from an inlet (20) to an outlet (29) of the rotating device, determining a residence time t m i n of the glass, specifying a target rotation frequency f* of the rotating device, and determining a dimension of the inner wall surface. The procedure for dimensioning a rotating device (2) for the fusion and/or refinement of glass, comprises determining a correlation between the quality Q of the glass and the residence time t at a given temperature T by determining a reaction rate k(T), specifying a target quality Q m i n (A m i n ; c g a s ) of the glass after the traversing of the glass from an inlet (20) to an outlet (29) of the rotating device, specifying a treatment temperature T m, determining a residence time t m i n of the glass in the rotating device, specifying a mass flow M of the glass and/or a quantity of a heterogeneous mixture passing through the rotating device, specifying a target rotation frequency f* of the rotating device, and determining a dimension of the inner wall surface with respect to the residence time, the mass flow and the target rotation frequency. The inner wall exhibits a contour (r, r) with the inner wall surface that is shaped in such a manner that a layer of glass forms itself on the inside wall during the rotation of the rotating device with the target rotation frequency. The layer of glass exhibits an essentially constant thickness d* at each vertical position z. The residence time is required for the target quality determined at the treatment temperature and is determined from the reaction rate. The rotating device is dimensioned rotation-symmetrically with respect to its longitudinal axis, with a total height H, a diameter at the inlet, a diameter at the outlet and with an inner wall surface F in such a manner that the contour of the inner wall surface between the inlet and outlet is determined with respect to its target quality of the glass at the outlet. The correlation is determined between the quality of the glass and the residence time at a given temperature. The minimum residence time is determined by the equation as given in the specification. The dimension F of the inner wall with the contour is determined by the function (F) as given in the specification. The correlations are maintained between the minimum residence, contour of the inner wall that has a slope angle alpha (r), the dimension of the interior wall surface, the mass flow and the glass speed u(z, r) with a density sigma and a viscosity eta on the inside wall, on which the glass forms a layer with the thickness d(r). The minimum residence time is determined by the integral of u(z, r) along the contour of the inner wall. The minimum melting degree A m i n is >=98%. The gas content is =5 vol.%. Independent claims are included for: (1) a rotating device for the production of glass; (2) element for a rotating device for the production of glass; (3) plant for the production of glass; and (4) procedure for the production of glass.

5. 发明专利

DE102006019646A1 Centrifugal production of ceramic molded parts involves casting flow-capable base for ceramic material in rotary-symmetric mold 未知
公开(公告)号：DE102006019646A1
公开(公告)日：2007-11-08
申请号：DE102006019646
申请日：2006-04-25
申请人： SCHOTT AG
发明人： SCHMITT STEFAN , KARNEHM ANSGAR , KARBACH FRITHJOF , MEROLLA STEFANO , STAUDER MATHIAS , SKIBA PETER-FRANZ
IPC分类号： C03B5/43 , C03B5/14 , C03B5/42 , C04B35/16 , C04B35/482
摘要： The centrifugal production of a molded hollow body (1) intended for contact with molten glass (4) involves casting a flow-capable base (6) for ceramic material in a rotary-symmetric mold. The mold is fixed to a rotary-symmetric body and rotated to produce the body, which can then be used as or in a rotatable device (2) to produce molten glass.

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