Patent · US Expired

Treatment agent for cast iron melts and a process for the production thereof

US4540436A · kind A · utility

8Cited by

3References

15Claims

0Family size

Assignees

SKW Trostberg Aktiengesellschaft · DE
Metallgesellschaft AG · DE

Inventors

Friedrich Wolfsgruber · Tacherting, DE
Ernst A. Weiser · Unterneukirchen, DE
Werner Gmohling · Hufschlag, DE
Hans Kern · Vachendorf, DE
Karl J. Reifferscheid · Karben, DE

Key dates

Filing date	Jul 2, 1984
Grant date	Sep 10, 1985
Priority date	—
Expiry date	Jul 2, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21C1/105
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention provides a treatment agent for cast iron melts based upon ferrosilicon magnesium with a silicon content of from 40 to 80% by weight and a magnesium content of from 0.5 to 15% by weight, said agent being in the form of granules with a specific surface area of from 0.2 to 0.8 m.sup.2 /g. according to BET. The present invention also provides a process for the production of this treatment agent, wherein a jet of molten ferrosilicon magnesium alloy is directed on to a bounce plate made of fire-resistant material and the melt droplets which bounce back from bounce plate are allowed to solidify in a liquid-filled collection receiver.

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