Welding Electrodes  damp the drug skin color black electrodes collide no crisp sound of Welding Rod surface long-term moisture will appear "white", some electrode surface looks Although no special changes in the welding arc strong The spatter increased. Damp electrode process performance:
(1) arc strongly
(2) combustion is not
(3) stable
(4) spatter multi
(5) large particles
(6) penetration
(7) prone to undercut
(8) the slag multiplexed
(9) does not cover
(10) are uniformly
(11) the rough shape of the solder wave
(12) caused by the pressure pit
(13) the slag removal difficult
(14) low-hydrogen type slag surface pores.