重力式酸素アーク切断法による軟鋼の水中切断について (1)

概要

論文の詳細を見る
Oxy-arc cutting of mild steel by stick hollow electrode is being conducted as a established in practical application, because it is fast and easy to handle. But the chief drawback to the use of conventional oxy-arc cutting is electric shock hazard and high degree of skill is required to keep steady arc in unstable cutting condition and poor visibility. To solve the problems, the simple automatic oxy-arc cutting method that is called Gravity cutting method was developed in our programe. Experiment was carried out at down hand position using the said hollow electrode and the same power source as used for underwater Gravity welding and the following conclusions were obtained. (1) Once set up, the actual cutting is made automaticaly without diver and welder. (2) The equipment is simple, cheap at price and easy to operation. (3) Actual cutting speed was high, and therefor in case of plate thickness in 100mm and 40mm, cutting speed was 25cm/min and 60cm/min respectively.
社団法人溶接学会の論文
1975-07-05