Metal treatment – Stock – Ferrous
Patent
1997-04-07
2000-08-29
Yee, Deborah
Metal treatment
Stock
Ferrous
420 61, 75512, C22C 3842, C22C 3844, C21D 174
Patent
active
061103004
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
REFERENCES:
patent: 4541862 (1985-09-01), Finkl et al.
patent: 4600427 (1986-07-01), Lenman et al.
patent: 5089067 (1992-02-01), Schumacher
patent: 5232120 (1993-08-01), Dunken et al.
patent: 5641453 (1997-06-01), Hack et al.
Adamson Jesse
Brada Guy A.
Underys Algirdas A.
A. Finkl & Sons Co.
Staples James G.
Yee Deborah
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