How does Cadweld work?
The CADWELD® process is a method of making electrical connections of copper-to-copper or copper-to-steel in which no outside source of heat or power is required. In this process, conductors are prepared, placed in a purpose-designed graphite mold, and exothermically welded to produce a permanent electrical connection.
What is in the powder in Cadweld?
CADWELD connections are made with a semi-permanent graphite mold, which holds the conductors to be welded.
What is a Cadweld used for?
Cadweld is a brand name for the exothermic welding process. This is a process most often used to form strong bonds where arc welding would induce too much heat into the joint. Exothermic welding is often hidden from sight, since one of the most common applications is the joining of large cables, such as copper wire.
What is the difference between nVent ERICO CADWELD and ERICO CADWELD plus?
Cadweld was the first exothermic connection to the market, patented in 1938. Cadweld Plus was introduced in 2003 with the first electronic ignition for exothermic welding. This guide provides a quick overview to often-used molds, weld metal and accessories for both traditional nVent ERICO Cadweld and nVent ERICO Cadweld Plus ignition methods.
How does The ERICO CADWELD Exolon process work?
The ERICO CADWELD EXOLON Process Fig. 21 Quickly pour the loose welding material powder into the ERICO CADWELD EXOLON mold. NOTE: Welding material is an exothermic mixture and reacts to produce hot molten material with temperatures in excess of 2500 degrees Fahrenheit (1400 degrees Celsius) and a localized release of smoke.
What kind of molds are used in ERICO CADWELD?
nVent ERICO Cadweld Molds A graphite mold is used for making most nVent connections. nVent molds will generally last an average of 50 or more connections under normal usage. Price Key and Handle Clamp and/or Frames Handle clamps are required for most molds. Specialized frames with handles are used on some molds.
Can I use ERICO CADWELD rebar splices with a grounding connection?
If ERICO CADWELD Rebar Splices are used, the grounding connection can be made to the splice sleeve with minimal effect on the structural characteristics of the splice. SAFETY INSTRUCTIONS: All governing codes and regulations and those required by the job site must be observed.