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Chapter: Civil : Railway Airport Harbour Engineering : Railway Engineering : Rail Joints and Welding of Rails

Electric or Metal Arc Welding

In this method, heat is generated by passing an electric current across a gap between two conductors.


Electric or Metal Arc Welding

 

In this method, heat is generated by passing an electric current across a gap between two conductors. A metal electrode is energized by a voltage source and then brought close to another metal object, thereby producing an arc of electric current between the two objects. A lot of heat is generated by this electric arc, causing the two rail ends to fuse or weld. This type of welding can be done using any of the following methods.

 

(a)  Insert plate technique

 

(b) Scheron process

 

(c)  Enclosed space technique

 

Indian Railways has recently started welding rail joints using the metal arc process on a trial basis and the performance so far has been satisfactory.

 

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Civil : Railway Airport Harbour Engineering : Railway Engineering : Rail Joints and Welding of Rails : Electric or Metal Arc Welding |


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