Global Patent Index - EP 1053808 A1

EP 1053808 A1 2000-11-22 - IMMERSION NOZZLE FOR CONTINUOUS CASTING OF STEEL

Title (en)

IMMERSION NOZZLE FOR CONTINUOUS CASTING OF STEEL

Title (de)

TAUCHDÜSE FÜR DAS STRANGGIESSEN

Title (fr)

TUYERE D'IMMERSION POUR COULEE EN CONTINU D'ACIER

Publication

EP 1053808 A1 (EN)

Application

EP 99900164 A

Priority

  • JP 9900058 W
  • JP 614398 A
  • JP 13223998 A

Abstract (en)

A submerged nozzle for continuous casting of steel wherein the whole nozzle or a part or the whole of the inner wall portion thereof which comes into contact with molten steel is made of a spinel-periclase-graphite type refractory, especially a spinel-periclase-graphite type refractory comprising 50 to 95% by weight of spinel, 0 to 20% by weight periclase, 5 to 30% by weight of graphite, and not more than 3% by weight of unavoidable impurities. The inner wall portion 1 and the portion 2 around the spout of the inner wall portion can be made of the above spinel-periclase-graphite type refractory, the nozzle main body can be made of AG-based refractory, and the powder line portion 3 can be made of ZrO2-C type refractory. <IMAGE>

IPC 1-7 (main, further and additional classification)

B22D 11/10; B22D 41/54

IPC 8 full level (invention and additional information)

B22D 41/54 (2006.01)

CPC (invention and additional information)

B22D 41/54 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL SE

EPO simple patent family

WO 9936213 A1 19990722; EP 1053808 A1 20001122; EP 1053808 A4 20011219

INPADOC legal status


2004-02-04 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030801

2001-12-19 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20011102

2001-12-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE DE ES FR GB IT NL SE

2000-11-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000714

2000-11-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE DE ES FR GB IT NL SE