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Making a FurseWELD joint is a simple procedure as illustrated below:
1. Locate the conductors (A) to be joined in the weld cavity (B) and close the mould (C).
2. Locate the steel retaining disc in the base of the crucible (D). Pour in the weld powder (E) followed by the starting powder (F). Ignite starting powder with a spark gun.
3. The resulting exothermic reaction reduces the weld powder to molten copper alloy which melts the retaining disc and flows into the weld cavity where it partially melts the conductors (G).
4. The molten copper alloy cools to leave a fusion weld of great mechanical and electrical integrity.
The FurseWELD system of exothermic welding uses moulds to contain the exothermic reaction that creates safe and robust connections. Different types of moulds are available, whose use depends on the requirements of the project.