公开(公告)号：US3635687A

公开(公告)日：1972-01-18

申请号：US3635687D

申请日：1970-05-26

Applicant: OWENS ILLINOIS INC

Inventor： DUNLAP GLENN H ,  KOBYLAK ANTHONY M ,  MILLER JOHN E

IPC: C03B17/06 ,  C03B23/037 ,  C03B17/00

CPC classification number: C03B17/065 ,  C03B17/06 ,  C03B23/037 ,  Y02P40/57

Abstract: A method for the production of thin glass from preformed glass blanks by heating the glass to attenuation temperature, maintaining the edge portions of the glass at a temperature above attenuation temperature but lower than the center portion of the glass and attenuating the deformable glass to produce a very thin sheet with a larger useable, planar area and closely controlled, dimensional tolerances. The heating furnace is improved by a pair of channel members disposed within the furnace and forming a path of travel from the glass and reducing the temperature of the glass edge portions. This process provides a method of increasing the total useable area of the preformed blank and permitting close control of the dimensional thickness of the attenuated glass sheet. The prior art methods produced glass sheets having areas of thin dimensions where the area and the thickness dimension is a constant ratio of the width to the thickness of the sheet. This process produces sheets having a width to thickness ratio three times that of the prior art sheet.

Abstract translation: 一种通过将玻璃加热至衰减温度从预成型玻璃坯料制造薄玻璃的方法，将玻璃的边缘部分保持在高于衰减温度但低于玻璃的中心部分的温度，并使可变形玻璃衰减，从而产生 非常薄的片材具有更大的可用，平坦的面积和紧密控制的尺寸公差。 通过设置在炉内的一对通道构件改善加热炉，并且形成从玻璃行进的路径并降低玻璃边缘部分的温度。 该方法提供了增加预制坯料的总可用面积并允许密切控制减弱的玻璃板的尺寸厚度的方法。 现有技术的方法制造出具有薄的区域的玻璃板，其中面积和厚度尺寸是片材的宽度与厚度的恒定比。 该方法产生宽度与厚度的三倍于现有技术的片材的片材。