Nickel and nickel alloy electrode http://xhjd2007.c029.com Production license: XK06-142 0530 nickel and nickel alloy electrode for use nickel and nickel alloy electrode is mainly used for welding nickel and nickel alloys, dissimilar metals can also be used welding and welding, the welded joints of the groove size and welding process close to the process of the Ni-Cr austenitic steel. The welding should pay attention to: 1. Poor thermal conductivity of nickel and nickel alloys, welding easily overheat causing the grain, the welding operation should use a smaller and welding current, electrode preferably not horizontal swing, ending attention to fill the crater as well as to maintain the temperature of the lower interlayer. Nickel is very easy to sulfur and lead embrittlement, the formation of hot cracks, so in addition to sulfur, lead content must be strictly controlled welding rod, welding should be carried out carefully cleaning to remove oil from the surface of the base metal, paint, dust and other dirt . 3 nickel and nickel alloy welding stomatal sensitivity, so the electrode contains the right amount of lead, titanium, manganese, magnesium and other deoxidizer, operation, attention to control the length of the arc. Force cracking is poor. Small thin-walled parts stiffness of the smaller parts of the defects can be welded without preheating, and the general should be preheated to about 400 and then welded, slow cooling after welding, which prevents cracks and white.