銅導線與垂直接地棒焊接過程

Making a CADWELD 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.

CADWELD Moulds

The CADWELD 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.

Graphite Moulds

Market leading CADWELD graphite moulds are extremely robust and capable of producing over 75 connections each.
 

Mini-Moulds

CADWELD mini-moulds are a cost effective alternative to full-sized moulds, especially where lower numbers of connections are required. They are smaller overall, less robust and therefore lower priced. Care is required in order to achieve similar service lives to full-sized moulds.

SureSHOT

The CADWELD SureSHOT system is a single-use ceramic mould supplied complete with retaining disc and powders. It has been designed for use in applications where only a few connections are required. For more information CLICK HERE