Exothermic Powder

Axi-weld Exothermic welding is simple, cost efficient, self contained
process of forming high quality connections. This process requires no
external power or heat source making it completely portable. It uses high
temperature reaction of powdered copper oxide and aluminium, within a
mould, to form permanent connections.
In this process connections are made by pouring superheated molten
copper alloy on and around the conductors to be joined.The reaction takes
place very rapidly, therefore the total amount of heat applied to the
conductors or surfaces is considerably less than that of brazing or
soldering. This is important to remember when welding to insulated cable or
thin wall pipe.
The process use aluminium particles as reducing agent with copper oxide to
produce the chemical composition. Exothermic welding is a bonding of high
conductivity high copper content alloy and high corrosion resistance.