Patent · US Expired

Addition of magnesium to molten metal

US3957502A · kind A · utility

24Cited by
6References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 9, 1974
Grant dateMay 18, 1976
Priority date—
Expiry dateSep 9, 1994

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC21C7/0645
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A magnesium additive for ferrous melts comprises a structure of particulate magnesium and a material which forms a coherent, stable metal permeable matrix when subjected to the temperature of a ferrous melt. The additive may comprise magnesium granules enveloped with such a material, which may be carbon or calcium fluoride. The additive may also comprise a homogeneous mixture of magnesium with a refractory material, or may comprise magnesium surrounded by carbonaceous material capable of forming a skeletal carbon structure. The carbonaceous material may comprise an organic binder and may be mixed with other materials, such as carbon and calcium fluoride.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.