Page 229 - CITS - Welder - Trade Theory

WELDER - CITS

- Thicker steels can be welded in a single pass.
- High deposition rate.

- Residual stresses and distortion low.
- Less flux consumption.
- No spatter.
Fig 2

Application
- Forging and castings of heavy thickness can be welded.
- Some alloys such as low carbon and medium carbon steels can be welded.
- High strength structural steels can be welded.
- High strength alloy steel such as stainless steel and nickel alloy can be welded.
Limitations: This process can be used only for welding of very heavy plates.
Equipment’s:-
1 AC Power Source
2 Wire Feeder
3 Electrode Guide Tube
4 Control Panel
5 Travel Carriage
6 Water cooled Copper Shoes
1 AC power source
Electro Slag Welding requires a Power Source, capable of delivering the AC welding current, recommended for
the process. The Power Source is stationary.
2 Wire feeder
The function of the wire feeder is to deliver the electrode wire through the guide tube to the molten flux.
3 Electrode guide tube
The tube is insulated materials to avoid short circuiting. It is made of beryllium copper alloys because this alloy
can withstand high temperature and retains its strength.
4 Control panel

It consists a mounting near the welding head which as the following components

216

CITS : C G & M - Welder - Lesson 77 - 82