It is shown that residual thickness of corrosion dent directly repaired by low-hydrogen electrode of 3.2 mm diameter is 4.4 mm under the welding current of 105 A,and when the flat applied,weld distance shall greater than 100 mm.

• 结果表明；采用直径为3.；2mm的低氢焊条；在105A的焊接电流下；可以直接补焊的点腐蚀坑剩余壁厚为4