Tool for glass molding operations and method of manufacture thereof
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United States of America Patent
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Aug 29, 2000
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app pub date -
Apr 7, 1997
filing date -
Apr 7, 1997
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Abstract
A tool for glass molding operations, particularly television tubes, having high oxidation resistance so that ice imperfections on a formed workpiece are eliminated or drastically reduced, said tool having the following approximate composition by weight percent: C 0.23-0.38, Mn 0.40-1.00, P 0.040 max, S 0.030 max, Si 0.00-1.20, Ni 1.0-3.0, Cr 14.0-20.0, Mo 0.25-1.00, V 0.10 max, Cu 0.50-1.50, Al 0.50-1.50, Fe balance together with incidental impurities and other elements not significantly adversely affecting performance and methods of manufacture thereof
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