SCHIRTEC Exotermic Welding Powder is available in cartridge with following content:
- 65 g
- 90 g
- 115 g
- 150 g
- 200 g
- 250 g
Advantages of Exothermic Welding Connections
- No need for external heat source
- Material can be permanently joined within seconds
- Easy handling with ready moulds (dimensions 7cm x 7cm x 15cm or 7 cm x 7 cm x 20 cm)
- Exothermic Welding has an excellent corrosion resistance
- Exothermic Welding does not suffer from increased electrical resistance over the lifetime of the installation
How does Exothermic Welding works?
- Make sure that the mould is dry and clean and position the conductors properly. Than close the mould with the handle clamp.
- Place the small metal disc on the bottom of the mould.
- Pour the powder from the cartridge into the crucible.
- Open the bottom of the cartridge (red cap) and pour the starting powder on the top.
- Close the mould cap and ignite the starting powder with a spark gun. The exothermic reaction converts the weld powder into molten copper alloy.
- The molten copper alloy melts the retaining disc and flows into the weld cavity where it melts and connects the conductors. The process happens inside the mould.
- After the molten copper alloy cools down the conductors are connected.
- It is very important to clean the inside of the mould after every use. Therefor you can use a special cleaning brush.
- For each connection or joint one powder cartridge is required.
- A single mould can be used approx. 75 times
- When joining conductors smaller than 16 mm2, special sleeves are required
- Bar to bar
- Bar to earth rod
- Bar to steel surface
- Cable to bar
- Cable to cable
- Cable to earth rod
- Cable to reinforcing bar
- Cable to steel surface and pipe
- Cable to rail
- Bar to rail
- Stud to rail
- Stud to steel surface