THE AIR MELTING OF IRON-ALUMINUM ALLOYS

Journal Article · Tue Apr 01 00:00:00 EST 1958 · Trans. Met. Soc. AIME

OSTI ID:4340005

Zackay, V F; Goering, W A

Low-carbon Fe is induction melted without a slag in a rammed magnesia crucible. At the beginning of melt-down Al pig (99.95% Al) charged in a clay- graphite bottompouring crucible is placed in a pot furnace at 1800 deg F. The primary deoxidation of the molten Fe after melt-down is effected by the addition of 0.1% Al and 0.5% Mn. A more drastic deoxidation designed to reduce the O/sub 2/ content to the lowest possible level is accomplished by plunging metallic Ca to the bottom of the melt. The aluminum, which has been removed from the holding furnace, is then H/sub 2/ degassed by bubbling Cl/sub 2/ through a quartz tube immersed in the molten Al. About 0.1% Ca is then added to the Al, the oxide dross is removed, fluorspor is added to the molten Fe, and the molten Al is poured through the fluorspar slag. After vigorous stirring, the melt is poured into cast-iron molds. Ingots are removed from the molds and buried in vermiculite, where they are allowed to cool to room temperature. The ingots are radiographed, cropped, and heated to 1800 deg F for breakdown. The ingot is then rolled. (A.C.)

• Research Organization: Ford Motor Co., Dearborn Mich.
• NSA Number: NSA-12-009215
• OSTI ID: 4340005
• Journal Information: Trans. Met. Soc. AIME, Vol. Vol: 212; Other Information: Orig. Receipt Date: 31-DEC-58
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

MINERALOGY, METALLURGY, AND CERAMICS
AIR
ALUMINUM ALLOYS
ALUMINUM SILICATES
CALCIUM
CARBIDES
CAST IRON
CLAYS
COOLING
CRUCIBLES
FLUORIDES
FURNACES
GASES
GRAPHITE
HEATING
HIGH TEMPERATURE
HYDROGEN
HYDROGEN CHLORIDES
INDUCTION
IRON ALLOYS
MAGNESIUM OXIDES
MELTING
MOLDING
OXYGEN
QUARTZ
RADIOGRAPHY
REDUCTION
REFINING
ROLLING
SLAGS
TUBES