摘要 |
<p>Methods for reducing stress on an isopipe during manufacture of a drawn glass sheet are disclosed including a method comprising providing an isopipe having a root, heating the isopipe to a predetermined temperature, maintaining the isopipe at the predetermined temperature for a period of time sufficient to relieve at least a portion of a tensile stress on the isopipe root, coupling the isopipe to a down-comer, and then providing glass to the isopipe. Also disclosed is a method comprising heating an isopipe such that the temperature difference between the weir and the root of the isopipe, after heating and prior to coupling, is less than about 100 °C. A method comprising application of a compressive force to the ends of an isopipe root during heating is also disclosed.</p> |
申请人 |
CORNING INCORPORATED;HOYSAN, STEVEN, F.;MILILLO, STEVEN, M.;POWELL, WILLIAM, R. |
发明人 |
HOYSAN, STEVEN, F.;MILILLO, STEVEN, M.;POWELL, WILLIAM, R. |