Electro slag welding, Mechanical Engineering

ELECTRO SLAG WELDING

 

This process is similar to the electro gas welding process designed for making butt welding in the vertical position in one single pass and the plate thickness can vary from 12.5 mm to 500 mm. The welding heat is provided by a small quantity of flux which is converted into a conductive molten slag by its resistance to the electric current passing between the continuously fed wire or wires (upto three wires for 500 mm plates) and the parent plates. The hot molten slag melts the filler wire and the joint surfaces and also shields the weld pool which moves up along full cross section of the joint as welding progresses. There is no arc and welding is quiet and spatter free. A pair of water cooled copper shoes fitted on either side of the joint retaining the molten metal and slag pool and acts as a mould to cool and shape the weld surfaces. The copper shoes move automatically along upward as welding progresses. Many years ago, the process was employed for welding of boiler drums and thick plates in India and Russia. Now it has become obsolete.

 

 

Posted Date: 9/13/2012 7:30:10 AM | Location : United States







Related Discussions:- Electro slag welding, Assignment Help, Ask Question on Electro slag welding, Get Answer, Expert's Help, Electro slag welding Discussions

Write discussion on Electro slag welding
Your posts are moderated
Related Questions
Explain Asphalt paving machine In the laying of asphalt pavement roadways, it is common practice to utilize Floating screed type paving machines. These machines typically inclu

A double shoe brake as shown in the figure is capable of absorbing a torque of 1400 N-m. The diameter of the brake drum is 350mm and the angle of contact of each shoe is 100°. If t

It is really significant of using a Gantt chart in order to respect the deadline of a client. Show the five main areas that must be explored for a good time management. There

The function of the impellers is to: (i) reduce bubble size thereby increasing the surface area for oxygen transfer, and (ii) maintain a uniform environment, nutrient supply and he

Difference between path function and point function

Q.   Find the dimension of strongest rectangular beam that can be cut out of log of 25 mm  diameter. Sol .: b 2 +  d 2 = 25 2 d 2 = 25 2 -  b 2 As M/I = σ/y; M =

How can I get the literature review on fabrication and construction of a modified Co2 single stroke positive displacement pump driven with electric motor

Q What do you know about Series welds in spot welding? It is a welding method in which two or more spots are produced simultaneously with only one common but indirect current p

Motion on the inclined plane when the surface is smooth: Sol:  WHEN THE SURFACE SMOOTH   The Figure given shows a body having weight W, sliding down on a smooth in

Calculate the Machining Time and the Material Removal Rate A through hole of 40 mm diameter and 50 mm depth is to be drilled in a mild steel component. The cutting speed can b