眞空熔融法に依る鋼中のガス成分定量に關する研究 (II) : 眞空熔融装置の氣體吸収に就て [2]

概要

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The effects of cooling (air cool and water cool) of the same vacuum vessel of the furnace of a carbon spiral resistor type, constructed to have high evacuation velocity, for the gas analysis of several sorts of standard steel specimens, were studied. It was recognized that diminishing effects by evaporization of Mn or Al on the oxygen and the nitrogen values of the specimens were strengthened by strong cooling of the vessel, and that effects caused by previously condensed film of the Mn or the Al on the nitrogen values were rather increased by the hot vacuum vessel. The former effects were considered to be caused by pile of physical gas adsorption by condensation of the Mn or the Al every moment, and the latter by the chemical reaction or nitride formation of the condensed Mn or Al. In order to decrease both effects, the temperature of the vacuum vessel and the parts of condensed film of evaporizing materials must be mentained in adequate range.
社団法人日本鉄鋼協会の論文
1952-09-25