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Method for eliminating carbon contamination of platinum-containing components for a glass making apparatus

A technology for glass manufacturing and equipment, applied in the field of eliminating carbon pollution of platinum-containing parts used in glass manufacturing equipment, capable of solving problems such as contamination of molten glass

Active Publication Date: 2012-05-02
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Despite the relatively stable performance of platinum (or platinum alloys) when immersed in corrosive molten glass, some of these platinum components have been found to cause accidental contamination of the molten glass with gas inclusions or bubbles

Method used

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  • Method for eliminating carbon contamination of platinum-containing components for a glass making apparatus
  • Method for eliminating carbon contamination of platinum-containing components for a glass making apparatus
  • Method for eliminating carbon contamination of platinum-containing components for a glass making apparatus

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Embodiment Construction

[0033] In the following detailed description, for purposes of illustration and not limitation, example embodiments are set forth in numerous specific details in order to provide a thorough understanding of the present invention. However, it will be apparent to those of ordinary skill in the art, having reference to the disclosure herein, that the invention may be practiced in other embodiments without departing from the specific details disclosed herein. Moreover, descriptions of well-known devices, methods and materials are omitted so as not to obscure the description of the present invention. Finally, as far as possible, the same components are designated with the same reference numerals.

[0034] Many modern glassmaking systems employ precious metal components for conveying and / or handling the molten glass material once it is formed by melting the batch. Typical noble metals include metals selected from the platinum group metals including platinum, rhodium, iridium, ruthen...

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Abstract

In the formation of sheet material from molten glass, molten glass is formed in a melting furnace and transported through a precious metal delivery system to the forming apparatus. Disclosed herein is a method to mitigate carbon contamination of individual components of the precious metal delivery system prior to and / or during their use. The method involves positioning an oxygen generating material within portions of a precious metal component, and may comprise one or more heat treating steps of the component in an oxygen-containing atmosphere.

Description

[0001] Pursuant to 35 U.S.C. §120, this application claims the benefit of priority to U.S. Patent Application No. 12 / 871,222, filed August 30, 2010, and U.S. Patent Application No. 13 / 074,133, filed March 29, 2011, the contents of which Incorporated herein by reference in its entirety and hereby claims priority benefit under 35 U.S.C. §120. technical field [0002] The present invention relates to a method for mitigating the effects of carbon contamination of platinum-containing components used in glass manufacturing equipment. Background technique [0003] Glassmaking equipment used to deliver high quality glass in the manufacture of precision glassware requires special attention to the delivery system. Such precision products can include optical lenses and glass panels used to manufacture display devices such as televisions, computers, mobile phones, etc. [0004] Molten glass delivery systems for high precision products can often be formed from noble metals, usually plat...

Claims

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Application Information

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IPC IPC(8): C03B7/06C03B5/187
CPCC03B5/187C03B5/16B23K31/027B23K35/322B23K2101/34B23K2103/08C03B5/00C03B5/18C03B5/225C03B7/02C21D9/50
Inventor W·G·多尔夫德S·L·希费尔贝因
Owner CORNING INC
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