Accession Number : AD0694813

Title :   A METHOD FOR INVESTIGATING THE DEGASIFICATION PROCESS OF STEEL DURING VACUUM TREATMENT,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Lenin,E. S. ; Kurochkin,K. T. ; Umrikhin,P. V.

Report Date : 30 JAN 1969

Pagination or Media Count : 6

Abstract : The apparatus and procedure are described for sampling molten steel during vacuum degassing, consisting essentially of a quartz tube sampler which can be immersed into molten steel, taking a sample, and withdrawing it without breaking the vacuum. Before sampling a piece of A1 wire is placed into the tube to react with the oxides. Samples can be taken at a rate of one every 30 sec. The samples are cooled and placed into calibrated eudiometers filled with alc.; after 5 days, the amt. of evolved H is measured and the amt. of residual H is detd. by vacuum heating. Essentially, the method det. gas content remaining in the metal rather than the gas evolved; it can be used for detg. other gases or for complete chemical analysis.

Descriptors :   (*STEEL, DEGASIFICATION), VACUUM APPARATUS, SAMPLERS, TEST METHODS, USSR

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE