転炉炉内溶鋼温度, 炭素量測定による終点温度, 炭素量の予測制御について

概要

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In order to improve the quality and to increase the production of steel ingot, it is essential to achieve the most accurate and the speediest control of end point temperature and C in L.D. converter. For this purpose homemade dropping thermoconple and carbon detector were tested 20 times at Amagasaki 30 t L.D. Furnace of Kobe Steel, and the results obtained were as follows : (1) Using the computer and dropping the temperature and C detector into the molten bath at 3 to 5 min before blow off, the deviation from aimed end point values can be restricted within ±10℃ and ±0.01%C. (2) Measuring the bath and its freeging temperature within 15 sec, bath carbon can be presumed for very short time. (3) The measuring accuracy is mainly decided by the blow hole and aluminum killing method in the sample, measuring time and position in the L.D. furnace and measuring technique of temperatures. (4) Detector can be used repeatedly, so the actual cost of consumption can be minimized. (5) Samples obtained in the detector can be used for analysis.
社団法人日本鉄鋼協会の論文
1968-03-01