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Welding HeadSubmerged arc welding head consists of the wire spool, wire feed system, flux delivery hopper and electrical contact nozzle. The electrode wire is unwound from the spool by the power driven rolls, straightened by a set of pressure rolls and fed through the contact nozzle into the weld pool. The drive for wire feed is from a motor with speed control provided either by means of a gear box or by means of thyristor controls.
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Drainage of the Railway Track: It is necessary to keep the embankment free from water. This is done by providing side ditches, all along the edge of the embankment, and leadi
METAL TRANSFER IN CO2 WELDING In CO 2 welding, two distinct types of metal transfers are identified viz. short circuiting transfer and free flight globular transfer. Short Cir
(a) Derive an expression for the otto cycle to determine the Mean Effective Pressure and efficiency. (b)The two engines are to perform on diesel and otto cycle with the followin
Main characteristics of couple: Sol.: The main characteristics of couple 1. The algebraic sum of the forces, having the couple, is zero. 2. The algebraic sum of moment
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