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Patent Searching and Data


Title:
REFRACTORIES FOR LADLE
Document Type and Number:
Japanese Patent JPH071110
Kind Code:
A
Abstract:

PURPOSE: To reduce the cost of the refractories by forming permanent lining bricks of a zircon system or magnesia-chromium system and forming lining refractories of monolithic refractories of an alumina system.

CONSTITUTION: The ladle is formed of a steel shell 2, permanent bricks 4 of external lining and internal lining refractories 6. The permanent lining bricks 4 are formed of zircon bricks or magnesia-chromium bricks. The internal lining refractories 6 are formed of the monolithic refractories of the alumina system by casting. The zircon bricks consisting of 40 to 100% ZrO2.SiO2 and 60 to 0% SiO2 or the magnesia-chromium bricks consisting of 55 to 95% MgO and 5 to 45% Cr2O3 are used as the permanent lining bricks. The monolithic refractories of the alumina system consisting of 40 to 100% Al2O3 and 0 to 60% spinel is used as the internal lining refractories. As a result, local jointed repair is made possible and the life of the ladle is prolonged.


Inventors:
NANBU MASAO
Application Number:
JP1593591A
Publication Date:
January 06, 1995
Filing Date:
January 16, 1991
Export Citation:
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Assignee:
KAWASAKI STEEL CO
International Classes:
B22D41/02; C04B35/047; C04B35/16; (IPC1-7): B22D41/02; C04B35/047; C04B35/16
Attorney, Agent or Firm:
Takeo Nakaji