KLK

The KLK-WELD procedure uses the high temperature that develops in the reaction caused by the reduction of copper

oxide by aluminum. The reaction takes place inside a graphite mould-crucible, into which the pieces to be welded have

previously been placed; the metal resulting from the aluminothermic reaction, in molten state, flows over them, melting

them and forming a compact homogeneous mass.

The reaction is very fast and therefore the parts to be welded, in the area around the weld spot, reach a temperature much lower than that obtained using standard procedures. This is a very important factor when it comes to protecting the cable insulation or physical characteristics of the materials to be welded. KLK-WELD welding can be used in addition for welding copper to copper, steel to copper, etc..

The KLK-WELD connection is a perfect molecular weld and not a mere mechanical contact. The alloy used has a melting point nearly equal to that of copper and generally has a section of about twice that of the conductors to be welded, so that:

• Overloads or short circuit currents do not affect the connection and tests have shown that the conductors melt before the weld.
• The conductivity of the connection is at least equal or superior to that of the conductors joined.
• There is no possibility of galvanic corrosion, since the conductors are integrated into the connection.