Spinner disc alloy
AssigneeJohns Manville International, Inc.
InventorsWalter A. Johnson, Gary W. Smiley, Robert Rushforth, John Strothers
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Abstract
Cobalt alloys are disclosed for use in the fabrication of spinner discs for fiberizing molten glass into fibers in rotary fiberizing processes. The cobalt alloys fall within the following ranges, in percentage by weight, Co 22.0-54.0; Cr 30.0-34.0; Ni 9.0-31.0; Mo 0.0-7.0; C 0.45-0.65; Si 0.25-1.0; Mn 0.30-0.80; precious metals (PM) 0.0-2.0; and carbide forming metals (CFM) 0.0-1.3.
Claims11
A spinner disc for fiberizing molten glass in a rotary fiberizing process at temperatures of 1800° F. to 2000° F.;
- the spinner disc having a bottom disc plate and an annular peripheral sidewall integral with and extending upward from the bottom disc plate which has a plurality of fiberizing holes therein through which molten glass is passed by centrifugal force to form glass fibers;
- the spinner disc being made of an alloy consisting essentially of:
- Co 22.0-40.0 Cr 30.0-34.0 Ni 29.0-31.0 Mo 0.0-6.0 C 0.45-0.60 Si 0.25-1.0 Mn 0.30-0.80 PM 0.0-2.0 CFM 0.0-1.30
- in percentage by weight.
A spinner disc for fiberizing molten glass in a rotary fiberizing process at temperatures of 1800° F. to 2000° F.;
- the spinner disc having a bottom disc plate and an annular peripheral sidewall integral with and extending upward from the bottom disc plate which has a plurality of fiberizing holes therein through which molten glass is passed by centrifugal force to form glass fibers;
- the spinner disc being made of an alloy consisting essentially of:
- Co 44.0-54.0 Cr 30.0-34.0 Ni 9.0-11.0 Mo 5.0-7.0 C 0.55-0.65 Si 0.25-1.0 Mn 0.30-0.80 Ti 0.10-0.20 Nb 0.30-0.40 W 0.50-0.70
- in percentage by weight.
Dependencies are inferred from the claim text.