Ferroalloy for inoculation of spherulitic graphite irons
US5733502A · kind A · utility
14Cited by
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Key dates
| Filing date | Jun 25, 1997 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Jun 25, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C35/005
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ferrosilicon-based ferroalloy for inoculation of spherulitic graphite irons containing (by weight) from 0.005% to 3% rare earths, 0.005% to 3% bismuth, lead and/or antimony, and 0.3% to 3% calcium, and is characterized by the fact that Si/Fe>2 and contains from 0.3 to 3% magnesium. The ferroalloy exhibits improved granulometric stability during storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.