新電弧鎔接方法に就て
1935 年 1935 巻 57 号 p. 15-32
詳細
1935 年 1935 巻 57 号 p. 15-32
Methods of electric arc welding with metallic electro'es now used are classified into three; namely, hand welding, automatic welding and semi-automatic. However, in these methods the electrode has to be fed and moved along the weld line as it is melted.
The new method introduced by the author provides for the laying of the electrode directly (in the case of a bare electrode some clearance between the rod and the base metal is required for laying several) short pieces of asbestos yarn transversely between them) on the weld line of the base metal, and as soon as the arc is started by shorting the electric current between the tip of the electrode and the weld metal with a pieceof wire, the wire is removed, then the arc will move continuously at a constant speedand a constant arc length from the tip of the end (which is connected with the electric terminal wire), and the welding is completed.
The new method can be used in vertical, horizontal and overhead welding without any difficulty, just as easily as downward welding.
The new method requires neither the personal effort of the welder, as in hand welding, nor does it restrict the size and capacity of the welding machine, as in automatic welding.
The electric welding machine and electrode now in use can be employed with the new welding method without any alteration to them whatever.
