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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.
Consider a simple single machine system. It consists of workpieces that enter the system, wait their turn to be processed on a single machine, and then depart the system. The workp
Q. Show Gasket Compression? Gasket compression can also be used as a guide for limiting bolt torque. Spiral wound gaskets should be compressed to an average of 75% of origin
Power
Are the types of pumps selected (base mounted, in-line)? Locate pump on discharge side of boiler. Flexible connector used. Valving indicated, isolation valve on suction and dis
determine the relationships between system constants for an ideal gas
What are wall footings? Explain in short. Generally wall footings are required to support direct concentric loads. However, an exception is the wall footings for retaining wall
Movement of wire at the signal box: The wire working on railway signal is 5mm in diameter and 300m long. If movement at the signal end is to be 25cm, make calculations for mo
Types of Lubricant: Lubricant is a material which circulates through the lubrication network to provide lubrication at various points. Lubricants are classified in three forms: Fl
Explain modified Rankine cycle in detail with T-S and p-v diagrams. Explain Carnot cycle in detail with P-V and T-S diagram, and also write down expression for work ratio, therm
MATERIALS WELDABILITY Electron beam welding has the ability to weld a variety of materials including dissimilar combinations. These can be split into general categories as to t
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