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Methods for producing glass compositions

A technology of glass and mixture, which is applied in the field of preparing glass compositions, and can solve the problems of unusable glass products and commercial impacts, etc.

Inactive Publication Date: 2012-11-28
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The presence of the aforementioned defects during the manufacture of glass can have commercial implications, as glass products made with significant amounts of these impurities can render the glass unusable and eventually discarded

Method used

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  • Methods for producing glass compositions
  • Methods for producing glass compositions
  • Methods for producing glass compositions

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0049] Several glass compositions were prepared using the following method and the formulations in Tables 1-4. 400 grams of the glass precursor components were dry mixed for 3 minutes in a one quart ball jar mixer with intensifier rods. To this mixture was added 0.5% by weight water and wet mixed for 3 minutes in a 1 quart pot with reinforcement rod just before melting. Preheat the furnace to the target temperature +100°C. Add the mixture of precursor components in a platinum crucible and cover with a Pt lid. Put the crucible in the furnace and start heating immediately after closing the furnace. The mixture was heated for a certain amount of time according to the schedule in Table A below. Then, the glass was annealed at 725° C. for 2 hours, the annealing furnace was shut down, and the glass and crucible were cooled to room temperature. A 15 / 8 inch diameter core was drilled from this glass. Using a jig, cut 1 / 16" slices from the bottom of the meniscus. Cut the remaining ...

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Abstract

The subject matter disclosed herein generally relates to methods for producing glass compositions with a reduced number of defects.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Application Serial No. 60 / 776,482, entitled "Method of Making Glass Compositions," filed February 4, 2006, the contents of which are incorporated herein by reference. field of invention [0003] The subject matter disclosed herein generally relates to methods of making glass compositions with reduced number of defects. Background technique [0004] In a typical conventional glassmaking process, all raw materials are pretreated, optionally mixed with water, to form a single molten batch, which is then fed either partially or continuously into a premelter or glass melting furnace, using fuel combustion and / or electrical energy to The batch material is heated and melted. A series of chemical reactions take place in the premelter and / or furnace to form molten glass. The molten glass is then discharged from the furnace and various techniques and equipment are used to shape the gla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C1/00
CPCC03C1/00C03C3/00
Inventor D·I·巴兹G·B·库克J·B·卡那雷P·M·芬恩J·T·菲斯克S·L·格雷J·P·麦克卡尼
Owner CORNING INC