ガス切断に関する二, 三の実験 (2) : 切断効率におよぼす鋼温度の影響

概要

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This paper deals with the effect of steel temperature from the standpoint of cutting efficiency. The technique employed in this study was essentially the same as that described in the previous report excepting that each test specimen was heated with gas burners and cutting was done when its temperature slowly dropped to the testing temperature. The results showed that steel temperature has a substantial influence on both the oxygen consumption requird for cutting and the speed of cutting. Concerning the relations among steel temperature, cutting efficiency and cutting variables, experimental formulas were obtained. Moreover, from these formulas it was found that the maximum cutting efficiency obtainable was increased in comparison with the room temperature. For instance, the efficiency was increased by 33,67 and 160 per cent at the respctive steel temperatures of 400,700 and 1,000℃. Furthermore, the temperature distribution in the steel ahead of the cutting reaction zone and the direction of cutting was measured. Some considerations were made on the results obtained.
社団法人溶接学会の論文
1960-06-25