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Ultraweld Process
The Ultraweld process is an effective and safe method of welding copper to copper or copper
to steel for the purpose of producing permanent electrical connections. Ultraweld exothermically
welded connections are produced from the energy and molten copper metal liberated from an
exothermic reaction between powdered copper oxide and aluminum. The reaction takes place at
a theoretical temperature of 4600°F and as a result, molten copper alloy is created and used to
melt the conductors and cast the finished connection. The exothermic reaction takes place in a
semi-permanent graphite mold that will last 50 or more welds if properly cared for. The process
is simple and easy to implement providing an on-site means to make welded electrical connec-
tions without requiring external power, equipment or the special training usually required for
brazing and welding. The process will provide a finished connection that will never corrode,
loosen or increase in resistance. The finished connection also provides an ampacity that exceeds
that of the conductors being joined.
 
Standard
 
Standard