Process for manufacturing mineral wool, cobalt-based alloys for the process and other uses
US8398791B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Aug 23, 2007 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Sep 3, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/07
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cobalt based alloys exhibiting high-temperature mechanical strength in an oxidizing medium are provided. The alloys are free of W and Hf and include the following elements in percentage by weight of the alloy: 23 to 34% Cr; 6 to 12% Ni; 6.0 to 10% Ta; 0.3 to 1.2% C; less than 3% Fe; less than 1% Si; less than 0.5% Mn; less than 0.1% Zr; and a balance of cobalt and impurities. Ta/C molar ratios of the alloys are at least 0.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.