Cadweld CAHB Molds

Steel Connection Cathodic Protection Type CAHB Welders-Tap Conductor to top of horizontal cast iron pipe or flat surfaces

Permanent, Welded Connections

CADWELD connections are made with a semi-permanent graphite mold, which holds the conductors to be welded. Weld metal (a mixture of copper oxide and aluminum) is dumped into the top of the mold. The mold is covered and the weld metal ignited. The exothermic reaction produces molten copper, which produces a permanent, high conductivity connection.

When making a CADWELD connection, an accurate control of the CADWELD process is accomplished by using a semi-permanent graphite mold. Control is exercised over the direction and speed of the molten CADWELD weld metal flow and final shape. The graphite used in a CADWELD mold is a high temperature type that lasts for an average of 50 to 100 CADWELD connections under normal usage.

CAHB Welders are used for horizontal CAST or DUCTILE IRON pipe. For STEEL, see CAHA welders.