Global Patent Index - EP 0353804 B1

EP 0353804 B1 19940504 - Process for the production of cast iron with spheroidal graphite and/or vermicular graphite.

Title (en)

Process for the production of cast iron with spheroidal graphite and/or vermicular graphite.

Title (de)

Verfahren zur Herstellung von Gusseisen mit Kugelgraphit und/oder Vermiculargraphit.

Title (fr)

Procédé de préparation de fonte à graphite sphéroidal et/ou vermiculaire.

Publication

EP 0353804 B1 19940504 (DE)

Application

EP 89201831 A 19890711

Priority

DE 3824175 A 19880716

Abstract (en)

[origin: EP0353804A1] In a process for the production of cast iron with spheroidal graphite and/or vermicular graphite, by treating the molten cast iron with a treatment agent containing magnesium, according to the invention a treatment agent containing magnesium or magnesium and rare-earth metals is used, the composition of which is formed with the proviso that the components, with the exception of magnesium or the magnesium and the rare-earth metals, are contained therein in the ratio (in % by weight) which corresponds to the ratio (in % by weight) of the alloying components in the cast iron alloy to be treated.

IPC 1-7

C21C 1/10; C22C 37/04; C22C 35/00

IPC 8 full level

C21C 1/10 (2006.01); C22C 35/00 (2006.01); C22C 37/04 (2006.01)

CPC (source: EP)

C21C 1/105 (2013.01); C22C 35/00 (2013.01); C22C 37/04 (2013.01)

Designated contracting state (EPC)

DE ES FR GB

DOCDB simple family (publication)

EP 0353804 A1 19900207; EP 0353804 B1 19940504; DE 3824175 A1 19900118; DE 58907597 D1 19940609; ES 2052885 T3 19940716

DOCDB simple family (application)

EP 89201831 A 19890711; DE 3824175 A 19880716; DE 58907597 T 19890711; ES 89201831 T 19890711