CADWELD	Connections are often the weak point in ground circuits, especially if they are subjected to high currents and corrosion. The capacity of a grounding circuit to protect property and personnel depends on the quality of its connections. Only the CADWELD Exothermic System provides the permanent, low-resistance connection needed to create a long-lasting, reliable grounding networks. Features: • Current carrying (fusing) capacity equal to that of the conductor • Will not deteriorate with age • Permanent molecular bond that cannot loosen or corrode over time • Will withstand repeated faults • Low labor costs • Made with inexpensive, lightweight and portable equipment • No special skills are required • No external power or heat required • Can be checked for quality by visual inspection Applications: • ERICO offers many different CADWELD molds to suit virtually any application or connection requirement. See the CADWELD online catalog in Software & Downloads to help select the best mold for your bonding application.
Technical Information   Exothermic bonding, also known as exothermic welding, is a welding process for joining two electrical conductors, that employs superheated copper alloy to permanently join the conductors. The process employs an exothermic reaction of a copper thermite composition to heat the copper, and requires no external source of heat or current. The chemical reaction that produces the heat is an aluminothermic reaction between aluminium powder and a mixture of copper oxides (copper(II) oxide and copper(I) oxide), with chemical formula: 3CuO + 2Al → 3Cu + Al2O3 + Heat. Remote exothermic bonding is a type of exothermic welding process for joining two electrical conductors from a distance. The process reduces the inherent risks associated with exothermic welding and is used in installations that require a welding operator to permanently join conductors from a safe distance of the superheated copper alloy. The process incorporates either an igniter for use with standard graphite molds or a consumable sealed drop in weld metal cartridge, semi-permanent graphite crucible mold, and an ignition source that tethers to the cartridge with a cable that provides the safe remote ignition.
Part No. Description Contractor Tips Contractor tips for making Cadweld connections CADWELD MSDS Cadweld Weldmetal Materials Safety Data Sheets Starting Powder MSDS Cadweld Weldmetal Materials Safety Data Sheets