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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.
Q. Show the tensile properties of material? Tensile properties indicate how the material will react to forces being applied in tension. A tensile test is a fundamental mechanic
microscopic and macroscopic view points
a petrol tanker uses gravity to empty its 35kl tank in to an underground storage tabk. the hose that is used has a roughness equivalent to galvanised iron, has an internal diameter
tryton cycle
What is the difference between von-mises and maximum principal stress? What is axisymmetric, plane stress, and plane strain modeling? What is difference between a beam, spar,
Driving mechanism I). Knurl or Friction Drive : This has either the upper or lower electrode (or both) driven by a friction wheel on the periphery of the electrode. A co
WHAT IS PARITY CHECK ?
Q1. A short vertical column consists of a channel section with the dimensions shown in Figure 1(a). The column (part of a system used to support a machine) carries a compressive p
Determine the stresses in the shell: A thin spherical shell of 1.5 m diameter & 8 mm thickness is filled having a liquid at an internal pressure of 1.5 N/mm 2 . Determine the
EQUIPMENT FOR RESISTANCE WELDING-Stored energy equipments Energy can be stored and further utilised for welding. One method of storing energy is in capacitors electrostat
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