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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.
truss problems
How can I achieve a back and forth movement of carriage system. How can I reverse the motor to go back and forth.
GENERAL REASONS FOR DEFECTS The importance of weld quality is increasingly felt as we go ahead with the fabrication of sophisticated products using higher strength mater
Determine the deflection of the spring: A close coiled helical spring deflects 25 mm under a certain axial load. Determine the deflection of the second spring under the simila
Pure Torsion: What do you mean by pure Torsion? In general two typ
Relation between stress and strain: The relation between stress and strain is generally shown by plotting a stress-strain (σ -e) diagram. Stress can be plotted on ordinate (ve
Idle Circuit : During Idling while the throttle valve is almost closed the vacuum is very high at Venturi area and no air-fuel mixture is drawn through the main circuit, as t
Define the process of Otto cycle The Otto cycle is the ideal air standard cycle for petrol and gas engine. It having of four processes. Process 1 to 2 is isentropic comp
Explain the Moment of resistance? Sol.: The two equal and unlike parallel forces, the lines of action of which are not same, form couple. The resultant compressive force ( P
Q. Explain the types of belt drive used for power transmission? Also derive the velocity ratio of them. Sol: There are mainly three types of belt drive: (1) Open belt driv
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