Title:
GAS BLOWING NOZZLE FOR VESSEL CONTAINING MOLTEN METAL
Document Type and Number:
Japanese Patent JPS59118821
Kind Code:
A
Abstract:
PURPOSE: To reduce the wear rate of a nozzle for blowing gases from the bottom of a vessel and to prevent the clogging of the penetrating holes by providing a circular cross-section to the shape of the body of the nozzle, and arranging plural penetrating holes in concentric circles in the circular cross-section at equal intervals.
CONSTITUTION: The shape of the body 3 of a nozzle for blowing gases from the bottom of a vessel into molten metal is regulated so that a cross-section perpendicular to the blowing direction is made nearly circular. Plural penetrating holes 1 are arranged on concentric circles in the circular cross-section at equal intervals. The diameter of the holes 1 is about 0.3W10.0mm, preferably about 0.5W 6.0mm.
Inventors:
TANAKA SEIJIROU
MAFUNE TAKUZOU
MIMURA NOBUYUKI
KOJIMA NORIO
OOTA KOUICHI
TACHIBANA RINZOU
YAMADA HIROSUKE
OOISHI IZUMI
OGASAWARA KAZUNORI
YOKOI MAKOTO
MAFUNE TAKUZOU
MIMURA NOBUYUKI
KOJIMA NORIO
OOTA KOUICHI
TACHIBANA RINZOU
YAMADA HIROSUKE
OOISHI IZUMI
OGASAWARA KAZUNORI
YOKOI MAKOTO
Application Number:
JP23396182A
Publication Date:
July 09, 1984
Filing Date:
December 24, 1982
Export Citation:
Assignee:
KAWASAKI ROZAI KK
KAWASAKI STEEL CO
KAWASAKI STEEL CO
International Classes:
C21C7/072; C22B9/05; (IPC1-7): C21C7/072; C22B9/05
Attorney, Agent or Firm:
Eiji Saegusa