INTERNAL HOLE BODY OF CONTINUOUS CASTING NOZZLE

Title:

INTERNAL HOLE BODY OF CONTINUOUS CASTING NOZZLE

Document Type and Number:

Japanese Patent JPH05237610

Kind Code:

A

Abstract:

PURPOSE: To provide the internal hole body of the alumina graphitic nozzle which decreases the carbon pickup of molten steel and can prevent the formation and adhesion of alumina in the steel.

CONSTITUTION: The inner hole body of the nozzle is constituted of alumina clinker consisting of 1 to 40wt.% spinel clinker as refractory aggregate and the balance ≥99wt.% Al2O3 content. The refractory compsn. is a compsn. having <1wt.% carbon content and <1wt.% SiO2 content. The grain size constitution is 20 to 70wt.% grain size of ≤0.21mm.

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JP4452545	Gas blowing nozzle for molten metal container
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Inventors:

TANAKA TATSUJI
SUEKAWA YUKIHIRO
NISHI TAKASHI
FUKUNAGA SHINICHI
NISHIHARA RYOJI
MATSUI TAIJIRO

Application Number:

JP4414992A

Publication Date:

September 17, 1993

Filing Date:

February 29, 1992

Export Citation:

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Assignee:

KUROSAKI REFRACTORIES CO
NIPPON STEEL CORP

International Classes:

B22D11/10; B22D41/54; C04B35/10; C04B35/101; (IPC1-7): B22D11/10; B22D41/54; C04B35/10

Domestic Patent References:

JPS6487577A	1989-03-31
JP3068962B
JPH03243258A	1991-10-30
JPS61232266A	1986-10-16

Attorney, Agent or Firm:

Kobori Masashi

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