What is Exothermic Weld?

Definition / 01

Exothermic Weld System is a very effective and cost efficient method of making electrical connections in high quality which includes Large Connection or Small Connection. It is a simple self-contained system that uses the high temperature reaction of powdered copper oxide, aluminium and other required chemical and materials, within a mould to form permanent electrical connections.

CuOPowdered copper oxide
AlAluminium
+Other required chemical

Compatible Metals / 02

What and Which Metal can be Weld through Exothermic Weld Powder ?

The process of exothermic Weld is a method of making electrical connections from Copper to Copper or Copper to Steel and it can join any Metals to Metals like Bronze, Galvanized metals and Stainless steel etc , in which no outside source of heat or power is required.

01Copper
02Steel
03Bronze
04Galvanized metals
05Stainless steel

No outside source of heat or power is required

Exothermic-Welding-powder-AmiableWeld — AURA WELD® / FIELD TOOLKITMould · Powder · Tools · Safety

Properties / 03

Exothermic Welding – Properties

An exothermic weld has higher mechanical strength than other forms of weld, and excellent corrosion resistance. It is also highly stable when subject to repeated short-circuit pulses, and does not suffer from increased electrical resistance over the lifetime of the installation. However, the process is costly relative to other welding processes, requires a supply of replaceable moulds, suffers from a lack of repeatability, and can be impeded by wet conditions or bad weather (when performed outdoors).

Strengths

Higher mechanical strength than other forms of weld
Excellent corrosion resistance
Highly stable when subject to repeated short-circuit pulses
Does not suffer from increased electrical resistance over the lifetime of the installation

Considerations

Costly relative to other welding processes
Requires a supply of replaceable moulds
Suffers from a lack of repeatability
Can be impeded by wet conditions or bad weather (when performed outdoors)

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AURA WELD® graphite mould range for exothermic welding

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What is Exothermic Weld?