Global Patent Index - EP 0776983 A4

EP 0776983 A4 19980909 - NOZZLE FOR BLOWING GAS INTO MOLTEN METAL AND USAGE THEREOF

Title (en)

NOZZLE FOR BLOWING GAS INTO MOLTEN METAL AND USAGE THEREOF

Title (de)

DÜSE ZUM EINBLASEN VON GAS IN SCHMELZE UND DEREN VERWENDUNG

Title (fr)

AJUTAGE SERVANT A INJECTER DU GAZ DANS UN METAL EN FUSION ET SON UTILISATION

Publication

EP 0776983 A4 19980909 (EN)

Application

EP 96914400 A 19960523

Priority

  • JP 9601356 W 19960523
  • JP 32444795 A 19951213
  • JP 12610795 A 19950525

Abstract (en)

[origin: WO9637632A1] A nozzle for blowing a gas into a molten metal in a stable manner without causing the leakage of gas from its periphery, which has a simple structure and a long life, so that it does not require frequent replacements. The gas blowing nozzle comprises a refractory block formed unitarily with a metallic mounting member and provided with a small diameter through hole therein, and a small-diameter metallic gas blowing tube inserted slidably through the small-diameter hole. When the gas blowing nozzle and the surrounding refractory are worn, the metallic gas blowing tube is extended into the interior of a furnace, and a worn portion is repaired by packing a repairing material therein.

IPC 1-7

C21C 7/072

IPC 8 full level

B22D 1/00 (2006.01); C21C 5/48 (2006.01); C21C 7/072 (2006.01); F27D 1/16 (2006.01)

CPC (source: EP KR)

B22D 1/005 (2013.01 - EP); C21C 5/48 (2013.01 - EP); C21C 7/072 (2013.01 - EP KR)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 9637632 A1 19961128; CA 2195541 A1 19961128; CN 1053015 C 20000531; CN 1154720 A 19970716; DE 69615508 D1 20011031; DE 69615508 T2 20020529; EP 0776983 A1 19970604; EP 0776983 A4 19980909; EP 0776983 B1 20010926; JP 3894502 B2 20070322; JP H0941024 A 19970210; KR 100349870 B1 20030106; KR 970704892 A 19970906

DOCDB simple family (application)

JP 9601356 W 19960523; CA 2195541 A 19960523; CN 96190548 A 19960523; DE 69615508 T 19960523; EP 96914400 A 19960523; JP 32444795 A 19951213; JP 53555896 A 19960523; KR 19970700435 A 19970123