Electro gas welding, Mechanical Engineering

Assignment Help:

ELECTRO GAS WELDING


This process is an extension of MIG  I MAG welding, designed for single pass vertical welding of steel plates in the thickness range of 10 to 38 mm. The two plates are held vertically with a gap of 12 mm regardless of plate thickness. The wire electrode is introduced downwards into the cavity formed by two plates to be joined and two movable water-cooled copper chill blocks. The cavity is kept free of air by the shielding gas usually a mixture of argon and CO2. Wire diameter may vary from 1.6 mm to 2.4 mm. The welding head is suspended from elevator mechanism, which provides automatic control of vertical travel speed during welding. The welding head is automatically raised as the molten metal is building up. The welding is completely automatic. This technique is used in shipyards and in fabrication of storage tanks and large diameter pipes.  Two such indigenous machine have been developed in WRI and they are used in BHEL, Bhopal & Haridwar for fabrication of structure by welding in the vertical direction.


Related Discussions:- Electro gas welding

Defects involving inadequate bonding, Defects Involving Inadequate Bonding ...

Defects Involving Inadequate Bonding Lack of fusion Involves lack of complete melting and fusion of some portion of the weld metal in a joint. It may occur either bet

What are interconnecting pipe racks, Q. What are Interconnecting pipe racks...

Q. What are Interconnecting pipe racks? Interconnecting pipe racks carry the main process inlet, export and transfer lines and utility distribution lines to and from process an

Radiographic examination of welded joints, Q. Radiographic examination of w...

Q. Radiographic examination of welded joints? Radiographic examination (RT) of welded joints shall be performed as required by the Code. Acceptance criteria shall be in accord

Find the differential equation, Find the Differential Equation Flow pr...

Find the Differential Equation Flow problems where the Reynolds number is very, very small (Re (a) The space between two coaxial cylinders is filled with an incompressible

Friction, Friction: When a body moves or tends to move over the other ...

Friction: When a body moves or tends to move over the other body, a force opposing the motion develops at the contact surfaces. This force that opposes the movement or the ten

Bolt stress to seat the gasket, Q. Bolt Stress to Seat the Gasket? The ...

Q. Bolt Stress to Seat the Gasket? The required bolt stress to seat the gasket can be calculated, using the recommended gasket seating stress provided by the manufacturer in ac

Heat transfer, an elctric current is passed through a wire 1mm in diameter ...

an elctric current is passed through a wire 1mm in diameter and 10mm long. the wire is submerged in liquid water at atmospheric pressure and current is increased until the water bo

Thermodynamics, what are causes of hotness of a body?

what are causes of hotness of a body?

Present marketing information, Question: (a) When you are provide a de...

Question: (a) When you are provide a design brief, marketing forms an important aspect that involves researching and computing a potential opportunity to enter a market. What

Motion on the inclined plane when the surface is smooth, Motion on the incl...

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

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd