Global Patent Index - EP 0316921 B1

EP 0316921 B1 19930512 - LEAD-CONTAINING ADDITIVES FOR STEEL MELTS

Title (en)

LEAD-CONTAINING ADDITIVES FOR STEEL MELTS

Publication

EP 0316921 B1 19930512 (DE)

Application

EP 88119149 A 19881117

Priority

DE 3739154 A 19871119

Abstract (en)

[origin: EP0316921A1] A lead-containing additive for molten steels is in the form of a filled wire consisting of a metallic shell and fine particles of a filling material, which consists of a) metallic lead and/or lead alloys and b) a lime-containing material which releases CO2 at the temperature of the molten steel. <??>This additive allows reliable, controlled and uniform introduction of lead into the steel.

IPC 1-7

C21C 7/00; C22C 33/00; C22C 38/60

IPC 8 full level

C21C 7/00 (2006.01); C21C 7/04 (2006.01); C22C 33/00 (2006.01); C22C 38/60 (2006.01)

CPC (source: EP US)

C21C 7/0056 (2013.01 - EP US); C22C 33/00 (2013.01 - EP US); C21C 2007/0012 (2013.01 - EP US)

Citation (examination)

Cahiers d'Informations Techniques de la Revue de Métallurgie, 81 (1984), no. 8/9, Paris, France, "Utilisation du fil fourré dans la métallurgie en poche", S. 641-649

Designated contracting state (EPC)

AT BE DE FR GB IT

DOCDB simple family (publication)

EP 0316921 A1 19890524; EP 0316921 B1 19930512; AT E89325 T1 19930515; BR 8806056 A 19890808; DE 3739154 A1 19890601; DE 3880972 D1 19930617; JP 2760817 B2 19980604; JP H01162716 A 19890627; US 4892580 A 19900109

DOCDB simple family (application)

EP 88119149 A 19881117; AT 88119149 T 19881117; BR 8806056 A 19881118; DE 3739154 A 19871119; DE 3880972 T 19881117; JP 29033788 A 19881118; US 27053588 A 19881114