MOLD POWDER FOR CONTINUOUS CASTING OF STEEL

MOLD POWDER FOR CONTINUOUS CASTING OF STEEL

PROBLEM TO BE SOLVED: To provide a mold powder for the continuous casting of steel, which has both high viscosity and high basicity and which can cool a cast steel piece slowly while keeping lubricity inside a mold.SOLUTION: The invention relates to the mold powder for the continuous casting of stee...

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Hauptverfasser: ITO JUNYA, IWAMOTO YUKIMASA
Format: Patent
Sprache:eng
Schlagworte:
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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creator ITO JUNYA
IWAMOTO YUKIMASA
description PROBLEM TO BE SOLVED: To provide a mold powder for the continuous casting of steel, which has both high viscosity and high basicity and which can cool a cast steel piece slowly while keeping lubricity inside a mold.SOLUTION: The invention relates to the mold powder for the continuous casting of steel, which has a CaO/SiOmass ratio of 1.1-1.5 and contains 10-25 mass% AlO, 12-20 mass% NaO, and 1-15 mass% total carbon. The mold powder has a viscosity of 0.1-1.0 Pa s at the temperature of 1,300°C, and its crystallization temperature is 900-1,240°C. When the powder is melted and cooled, a crystal mainly composed of NaO, AlOand SiOis produced.
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The mold powder has a viscosity of 0.1-1.0 Pa s at the temperature of 1,300°C, and its crystallization temperature is 900-1,240°C. 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subjects CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
title MOLD POWDER FOR CONTINUOUS CASTING OF STEEL
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