Title:
NOZZLE FOR CONTINUOUS CASTING
Document Type and Number:
Japanese Patent JP3358040
Kind Code:
B2
Abstract:
PURPOSE: To provide a nozzle for the continuous casting having not only the spalling resistance, and the corrosion resistance but also the sufficient strength.
CONSTITUTION: The nozzle is made of alumina and the metal, or the alumina, zirconia and the metal to be obtained by reacting aluminum or its alloy with the electromelting refractory material which has the chemical composition consisting of, by weight, 40-90% Al2O3, 0-50% ZrO2, and 10-40% SiO2, and is formed of one to three phases of the α-alumina, mullite, monoclivic crystalline zirconia and the glass phases. The nozzle is obtained through the kneading, the forming and the baking of the aggregate consisting of 10-80wt.% refractory material containing the metal which is finely diffused in the matrix and the matrix material which is mainly composed of the balancesintered alumina powder. The secondary alumina and the metal of the refractory material to be obtained by reacting alumina or its alloy with the electromelting refractory material is richer in the activity than the primary alumina and zirconia, and the strength is improved by achieving the active sintering.
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Inventors:
Kazuhide Kawai
Toshiya Inoue
Matsuo excellent
Toshiya Inoue
Matsuo excellent
Application Number:
JP20287194A
Publication Date:
December 16, 2002
Filing Date:
August 04, 1994
Export Citation:
Assignee:
Toshiba Ceramics Co., Ltd.
International Classes:
B22D41/32; B22D11/10; B22D41/54; C04B35/101; C04B35/103; C04B35/66; (IPC1-7): B22D11/10; B22D41/32; B22D41/54; C04B35/101; C04B35/103; C04B35/66
Domestic Patent References:
| JP437453A | ||||
| JP550197A | ||||
| JP4344857A | ||||
| JP6051660A | ||||
| JP61101453A | ||||
| JP6096567A | ||||
| JP130784B2 | ||||
| JP612620B1 |
Attorney, Agent or Firm:
Yujiro Taka