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用等离子火焰喷制的,以Mo/MoO_2为参比极,ZrO_2(4％CaO)为电解质的针式定氧电池,其电池结构为Mo·Mo/MoO_2‖ZrO_2(4CaO)‖[O]-Fe·Mo,电解质厚度为0.3mm。在实验室于钼丝炉内,用氩气保护下氧化铝坩埚中的500g钢液,对电池的测成率、再现性和准确性进行了考察。对不同时间喷制的34支电池进行了连续测量。选取三组各9支电池对三种氧水平进行测定,平均波动系数σ=α_0测α_0/α_0=±3.54％;在纯铁液(Fe>99.8％)中,逐渐改变碳含量,测量其氧活度变化,与化学分析值相比,与理论曲线吻合得更好。此外,用抽氧法测量了P_e/o在1600℃时1gPe/o=-14.5。
The cell structure of the needle-type oxygen generator with Mo / MoO_2 as reference pole and ZrO_2 (4% CaO) as electrolyte was sprayed with plasma flame. The cell structure was Mo · Mo / MoO_2‖ZrO_2‖ [O] Fe · Mo, electrolyte thickness of 0.3mm. 500g molten steel in alumina crucible was protected by argon gas in the laboratory in a molybdenum wire furnace, and the measurement, reproducibility and accuracy of the battery were investigated. 34 batteries sprayed at different times were continuously measured. Three groups of nine batteries were selected to measure the three oxygen levels. The average fluctuation coefficient σ = α_0 was measured as α_0 / α_0 = ± 3.54%. In pure iron liquid (Fe> 99.8%), the carbon content was gradually changed, Activity changes, compared with the chemical analysis, the theoretical curve is better. In addition, the P_e / o at 1600 ° C was 1 gPe / o = -14.5 measured by the oxygen extraction method.