Accession Number:

AD0656456

Title:

FILTRATION OF ALUMINUM ALLOYS TO REDUCE OXIDE CONTENT.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY WEAPONS COMMAND ROCK ISLAND ILL RESEARCH AND ENGINEERING DIV

Personal Author(s):

• Miclot,R. B.

Report Date:

1967-06-01

Pagination or Media Count:

26.0

Abstract:

Several refractory and metallic media were tested for effectiveness in removing aluminum oxide from molten aluminum casting alloys. A technique was used by which a metal sample could be melted, filtered, and cast entirely in a nitrogen atmosphere. Eleven filter materials in granular form were evaluated for two commercial alloys, 195 and 356. The aluminum oxide content of each alloy was determined before and after filtering by chemical analysis, using a procedure previously developed. Single filter packs of carborundum, porous graphite, or nonporous graphite decreased the oxide content of 195 alloy magnesite, alundum, mullite, or porous graphite were most effective for alloy 356. Author

Descriptors:

• *ALUMINUM ALLOYS
• *OXIDES
• CASTINGS
• METALLURGY
• REFRACTORY METAL ALLOYS
• GRAPHITE
• FLUID FILTERS
• PURIFICATION
• TABLES(DATA)

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE