水素による鋼材の切断

抄録

There is a long history of using hydrogen flame. It is in 1837 when hydrogen-oxygen burner was invented in France. The researches of using hydrogen-oxygen flame for steel cutting were made actively in Japan before the Second World War. But at present, hydrogen is seldom used for the Steel cutting in the industrial field except for the steel cutting in the water. A lot of gas is used for the steel cutting in Japan. And it is equivalent to 400,000,000m³ of hydrogen per year on calorie bases. It is the purpose of this paper to make clear the pros and cons of using hydrogen for the steel cutting.